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v850es/kg1+ 32-bit single-chip microcontrollers hardware printed in japan document no. u16894ej1v0ud00 (1st edition) date published march 2004 n cp(k) preliminary user?s manual pd703313 pd703313y pd70f3311 pd70f3311y pd70f3313 pd70f3313y 2004 .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 2 [memo] .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 3 1 2 3 4 voltage application waveform at input pin waveform distortion due to input noise or a reflected wave may cause malfunction. if the input of the cmos device stays in the area between v il (max) and v ih (min) due to noise, etc., the device may malfunction. take care to prevent chattering noise from entering the device when the input level is fixed, and also in the transition period when the input level passes through the area between v il (max) and v ih (min). handling of unused input pins unconnected cmos device inputs can be cause of malfunction. if an input pin is unconnected, it is possible that an internal input level may be generated due to noise, etc., causing malfunction. cmos devices behave differently than bipolar or nmos devices. input levels of cmos devices must be fixed high or low by using pull-up or pull-down circuitry. each unused pin should be connected to v dd or gnd via a resistor if there is a possibility that it will be an output pin. all handling related to unused pins must be judged separately for each device and according to related specifications governing the device. precaution against esd a strong electric field, when exposed to a mos device, can cause destruction of the gate oxide and ultimately degrade the device operation. steps must be taken to stop generation of static electricity as much as possible, and quickly dissipate it when it has occurred. environmental control must be adequate. when it is dry, a humidifier should be used. it is recommended to avoid using insulators that easily build up static electricity. semiconductor devices must be stored and transported in an anti-static container, static shielding bag or conductive material. all test and measurement tools including work benches and floors should be grounded. the operator should be grounded using a wrist strap. semiconductor devices must not be touched with bare hands. similar precautions need to be taken for pw boards with mounted semiconductor devices. status before initialization power-on does not necessarily define the initial status of a mos device. immediately after the power source is turned on, devices with reset functions have not yet been initialized. hence, power-on does not guarantee output pin levels, i/o settings or contents of registers. a device is not initialized until the reset signal is received. a reset operation must be executed immediately after power-on for devices with reset functions. notes for cmos devices purchase of nec electronics i 2 c components conveys a license under the philips i 2 c patent rights to use these components in an i 2 c system, provided that the system conforms to the i 2 c standard specification as defined by philips. caution: .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 4 solaris and sunos are trademar ks of sun microsystems, inc. superflash is a registered trademark of s ilicon storage technology, inc. in several countries including the united states and japan. these commodities, technology or software, must be exported in accordance with the export administration regulations of the exporting country. diversion contrary to the law of that country is prohibited. the information contained in this document is being issued in advance of the production cycle for the product. the parameters for the product may change before final production or nec electronics corporation, at its own discretion, may withdraw the product prior to its production. not all products and/or types are available in every country. please check with an nec electronics sales representative for availability and additional information. ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 5 regional information ? ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 6 preface readers this manual is intended for users who wish to understand the functions of the v850es/kg1+ and design applicat ion systems using these products. purpose this manual is intended to give users an under standing of the hardw are functions of the v850es/kg1+ shown in the organization below. organization this manual is divided into two parts: hardware (this manual) and architecture ( v850es architecture user?s manual ). hardware architecture ? pin functions ? cpu function ? on-chip peripheral functions ? flash memory programming ? electrical specifications (target) ? data types ? register set ? instruction format and instruction set ? interrupts and exceptions ? pipeline operation how to read this manual it is assumed that the readers of this manual have general knowledge in the fields of electrical engineering, logic circuits, and microcontrollers. to find the details of a register where the name is known refer to appendix c register index . to understand the details of an instruction function refer to the v850es architecture user?s manual . register format the name of the bit whose number is in angle brackets (<>) in the figure of the register format of each register is defined as a reserved word in the device file. to understand the overall func tions of the v850es/kg1+ read this manual according to the contents . to know the electrical specif ications of the v850es/kg1+ refer to chapter 32 electrical specifications (target) . the ?yyy bit of the xxx register? is described as the ?xxx.yyy bit? in this manual. note with caution that if ?xxx.yyy? is de scribed as is in a program, however, the compiler/assembler cannot recognize it correctly. .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 7 conventions data significance: higher digits on the left and lower digits on the right active low representation: xxx (ove rscore over pin or signal name) memory map address: higher addresses on the top and lower addresses on the bottom note : footnote for item marked with note in the text caution : information requiring particular attention remark : supplementary information numeric representation: binary ... xxxx or xxxxb decimal ... xxxx hexadecimal ... xxxxh prefix indicating power of 2 (address space, memory capacity): k (kilo): 2 10 = 1,024 m (mega): 2 20 = 1,024 2 g (giga): 2 30 = 1,024 3 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 8 related documents the related documents indicated in this publication may include preliminary versions. however, preliminary versions are not marked as such. documents related to v850es/kg1+ document name document no. v850es architecture user?s manual u15943e v850es/kx1, v850es/kx1+ on-chip debug user?s manual u16972e v850es/kg1+ hardware user?s manual this manual documents related to developm ent tools (user?s manuals) document name document no. operation u16053e c language u16054e ca850 ver. 2.50 c compiler package assembly language u16042e pm plus ver. 5.10 u16569e id850qb ver. 2.80 integrated debugger operation u16973e operation u16906e sm plus ver. 1.00 system simulator user open interface specifications u16907e basics u13430e installation u13410e rx850 ver. 3.13 or later real-time os technical u13431e basics u13773e installation u13774e rx850 pro ver. 3.15 real-time os technical u13772e rd850 ver. 3.01 task debugger u13737e rd850 pro ver. 3.01 task debugger u13916e az850 ver. 3.20 system performance analyzer u14410e pg-fp4 flash memory programmer u15260e .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 9 contents chapter 1 introduction ...................................................................................................... ...........19 1.1 k1 family product lineup................................................................................................... ...... 19 1.1.1 v850es/kx1+, v850 es/kx1 products lineup.................................................................................. 19 1.1.2 78k0/kx1+, 78k0/k x1 products lineup ...................................................................................... .....22 1.2 features ................................................................................................................... ................... 25 1.3 applications............................................................................................................... ................. 27 1.4 ordering information ....................................................................................................... .......... 27 1.5 pin configuration (top view).................................... ........................................................... ..... 28 1.6 function block configuration .................................... ........................................................... ... 31 1.7 overview of functions ...................................................................................................... ........ 35 chapter 2 pin functions .................................................................................................... ............36 2.1 list of pin functions ...................................................................................................... ........... 36 2.2 pin status................................................................................................................. ................... 44 2.3 pin i/o circuits and recommende d connection of unused pins......................................... 45 2.4 pin i/o circuits ........................................................................................................... ................ 47 chapter 3 cpu functions .................................................................................................... ..........49 3.1 features ................................................................................................................... ................... 49 3.2 cpu register set ........................................................................................................... ............ 50 3.2.1 program re gister set ..................................................................................................... ..................51 3.2.2 system r egister set...................................................................................................... ...................52 3.3 operating modes............................................................................................................ ............ 58 3.4 address space .............................................................................................................. ............. 59 3.4.1 cpu addr ess s pace........................................................................................................ ................59 3.4.2 wraparound of cpu address space .......................................................................................... .....60 3.4.3 memo ry map............................................................................................................... ....................61 3.4.4 areas .................................................................................................................... ..........................63 3.4.5 recommended us e of addres s space ......................................................................................... ...67 3.4.6 peripheral i/o registers................................................................................................. ..................70 3.4.7 special registers ........................................................................................................ .....................81 3.4.8 c autio ns ................................................................................................................. ........................85 chapter 4 port functions ................................................................................................... .........89 4.1 features ................................................................................................................... ................... 89 4.2 basic port configuration................................................................................................... ........ 89 4.3 port configuratio n ......................................................................................................... ............ 90 4.3.1 port 0................................................................................................................... ...........................95 4.3.2 port 1................................................................................................................... ...........................98 4.3.3 port 3................................................................................................................... .........................100 4.3.4 port 4................................................................................................................... .........................106 4.3.5 port 5................................................................................................................... .........................109 4.3.6 port 7................................................................................................................... .........................112 4.3.7 port 9................................................................................................................... .........................113 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 10 4.3.8 port cm.................................................................................................................. ...................... 121 4.3.9 po rt cs .................................................................................................................. ...................... 123 4.3.10 po rt ct ................................................................................................................. ....................... 125 4.3.11 po rt dh ................................................................................................................. ....................... 127 4.3.12 po rt dl................................................................................................................. ........................ 129 4.4 block diagrams ............................................................................................................. ........... 132 4.5 port register setting when al ternate function is used...................................................... 157 4.6 cautions ................................................................................................................... ................. 164 4.6.1 cautions on bit manipulation inst ruction for port n register (pn) .................................................. 164 4.6.2 hysteresis characteri stics ............................................................................................... ............. 165 chapter 5 bus control function .......................................................................................... 16 6 5.1 features ................................................................................................................... ................. 166 5.2 bus control pins ........................................................................................................... ........... 167 5.2.1 pin status when internal rom, internal ram, or on-chip peri pheral i/o is accesse d................... 168 5.2.2 pin status in each operat ion m ode........................................................................................ ....... 168 5.3 memory block function ...................................................................................................... .... 169 5.3.1 chip select control f unction............................................................................................. ............. 170 5.4 external bus interface mode control function....... .............................................................. 170 5.5 bus access ................................................................................................................. .............. 171 5.5.1 number of clocks for access.............................................................................................. .......... 171 5.5.2 bus size se tting f unction ................................................................................................ .............. 171 5.5.3 access by bus size ....................................................................................................... ............... 172 5.6 wait function.............................................................................................................. .............. 179 5.6.1 programmable wait f unction ............................................................................................... ......... 179 5.6.2 external wait function................................................................................................... ................ 180 5.6.3 relationship betw een programmable wait and external wait ....................................................... 181 5.6.4 programmable addr ess wait function....................................................................................... .... 182 5.7 idle state inserti on function.............................................................................................. ..... 183 5.8 bus hold function .......................................................................................................... ......... 184 5.8.1 function al out line....................................................................................................... .................. 184 5.8.2 bus hold proce dure....................................................................................................... ............... 185 5.8.3 operation in power save mode ............................................................................................. ....... 185 5.9 bus priority ............................................................................................................... ................ 186 5.10 bus timing................................................................................................................ ................ 187 5.11 cautions .................................................................................................................. .................. 193 chapter 6 clock generation function............................................................................... 194 6.1 overview ................................................................................................................... ................ 194 6.2 configuration.............................................................................................................. .............. 195 6.3 registers .................................................................................................................. ................. 197 6.4 operation .................................................................................................................. ................ 202 6.4.1 operation of each clock .................................................................................................. ............. 202 6.4.2 clock output function .................................................................................................... ............... 202 6.4.3 external clo ck input f unction ............................................................................................ ............ 202 6.5 pll function ............................................................................................................... ............. 203 6.5.1 ov ervi ew................................................................................................................. ..................... 203 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 11 6.5.2 r egist er ................................................................................................................. .......................203 6.5.3 usage .................................................................................................................... .......................204 chapter 7 16-bit timer/event counter p (tmp) .................................................................205 7.1 overview ....................................................................................................................... ............ 205 7.2 functions ...................................................................................................................... ............ 205 7.3 configuration.................................................................................................................. .......... 206 7.4 registers...................................................................................................................... ............. 208 7.5 operation ...................................................................................................................... ............ 219 7.5.1 interval timer mode (tp0md2 to tp0md0 bi ts = 000).................................................................. 220 7.5.2 external event count mode (tp0 md2 to tp0md0 bits = 001) ......................................................230 7.5.3 external trigger pulse output mode (tp0md2 to tp0md0 bits = 010) ..........................................238 7.5.4 one-shot pulse output mode (tp0md 2 to tp0md0 bi ts = 01 1) ................................................... 250 7.5.5 pwm output mode (tp0md2 to tp0md0 bi ts = 100) ...................................................................257 7.5.6 free-running timer mode (tp0md 2 to tp0md0 bits = 101) ......................................................... 266 7.5.7 pulse width measurement mode (tp0 md2 to tp0md0 bits = 110) ............................................. 283 7.5.8 timer output operat ions........................................................................................................ ........289 7.6 eliminating noise on capture trigger input pin (tip 0a)...................................................... 290 7.7 cautions....................................................................................................................... ............. 292 chapter 8 16-bit timer/event counter 0..............................................................................293 8.1 functions .................................................................................................................. ................ 293 8.2 configuration.............................................................................................................. .............. 293 8.3 registers.................................................................................................................. ................. 298 8.4 operation .................................................................................................................. ................ 306 8.4.1 operation as interval timer .............................................................................................. .............306 8.4.2 ppg output operation ..................................................................................................... ..............309 8.4.3 pulse widt h measur ement .................................................................................................. ..........313 8.4.4 operation as ex ternal event count er...................................................................................... .......324 8.4.5 square-wave output oper ation............................................................................................. .........327 8.4.6 one-shot puls e output op eration .......................................................................................... ........330 8.4.7 c autio ns ................................................................................................................. ......................336 chapter 9 8-bit timer/event counter 5................................................................................341 9.1 functions .................................................................................................................. ................ 341 9.2 configuration.............................................................................................................. .............. 342 9.3 registers.................................................................................................................. ................. 345 9.4 operation .................................................................................................................. ................ 348 9.4.1 operation as interval timer .............................................................................................. .............348 9.4.2 operation as ex ternal event count er...................................................................................... .......350 9.4.3 square-wave output oper ation............................................................................................. .........351 9.4.4 8-bit pwm output oper ation ............................................................................................... ...........353 9.4.5 operation as inte rval timer (16 bits).................................................................................... ..........356 9.4.6 operation as external event counter (16 bits)............................................................................ ...358 9.4.7 square-wave output oper ation (16-bit resolu tion)......................................................................... 359 9.4.8 c autio ns ................................................................................................................. ......................360 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 12 chapter 10 8-bit timer h .................................................................................................. ........... 361 10.1 functions ................................................................................................................. ................. 361 10.2 configuration............................................................................................................. ............... 361 10.3 registers ................................................................................................................. .................. 364 10.4 operation ................................................................................................................. ................. 368 10.4.1 operation as interval timer/square wave output .......................................................................... . 368 10.4.2 pwm output mode oper ation ............................................................................................... ........ 371 10.4.3 carrier generat or mode o peratio n........................................................................................ ........ 377 chapter 11 interval timer, watch timer ........................................................................... 384 11.1 interval timer brg........................................................................................................ ........... 384 11.1.1 f uncti ons ............................................................................................................... ...................... 384 11.1.2 config uration ........................................................................................................... .................... 384 11.1.3 regi sters............................................................................................................... ....................... 386 11.1.4 oper ation ............................................................................................................... ...................... 388 11.2 watch timer............................................................................................................... ............... 389 11.2.1 f uncti ons ............................................................................................................... ...................... 389 11.2.2 config uration ........................................................................................................... .................... 389 11.2.3 r egist er ................................................................................................................ ....................... 390 11.2.4 oper ation ............................................................................................................... ...................... 392 11.3 cautions .................................................................................................................. .................. 393 chapter 12 watchdog timer functions .............................................................................. 395 12.1 watchdog timer 1 .......................................................................................................... .......... 395 12.1.1 f uncti ons ............................................................................................................... ...................... 395 12.1.2 config uration ........................................................................................................... .................... 397 12.1.3 regi sters............................................................................................................... ....................... 397 12.1.4 oper ation ............................................................................................................... ...................... 399 12.2 watchdog timer 2 .......................................................................................................... .......... 401 12.2.1 f uncti ons ............................................................................................................... ...................... 401 12.2.2 config uration ........................................................................................................... .................... 402 12.2.3 regi sters............................................................................................................... ....................... 402 12.2.4 oper ation ............................................................................................................... ...................... 404 chapter 13 real-time output function (rto) ................................................................... 405 13.1 function .................................................................................................................. .................. 405 13.2 configuration............................................................................................................. ............... 406 13.3 registers ................................................................................................................. .................. 407 13.4 operation ................................................................................................................. ................. 409 13.5 usage..................................................................................................................... .................... 410 13.6 cautions .................................................................................................................. .................. 410 13.7 security function ......................................................................................................... ............ 411 chapter 14 a/d converter ................................................................................................... ...... 413 14.1 overview .................................................................................................................. ................. 413 14.2 functions ................................................................................................................. ................. 413 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 13 14.3 configuration............................................................................................................. ............... 414 14.4 registers................................................................................................................. .................. 416 14.5 operation ................................................................................................................. ................. 424 14.5.1 basic operation......................................................................................................... ....................424 14.5.2 trigger modes ........................................................................................................... ...................425 14.5.3 operat ion mo des ......................................................................................................... .................426 14.5.4 power fail det ection f unction........................................................................................... ..............429 14.5.5 setti ng meth od .......................................................................................................... ...................430 14.6 cautions.................................................................................................................. .................. 431 14.7 how to read a/d converter char acteristics table .............................................................. 437 chapter 15 d/a converter ................................................................................................... .......441 15.1 functions ................................................................................................................. ................. 441 15.2 configuration............................................................................................................. ............... 442 15.3 registers................................................................................................................. .................. 443 15.4 operation ................................................................................................................. ................. 444 15.4.1 operation in norma l mode ................................................................................................ ............444 15.4.2 operation in re al-time out put m ode ...................................................................................... ........444 15.4.3 c autio ns ................................................................................................................ .......................445 chapter 16 asynchronous serial interface (uart) .....................................................446 16.1 selecting uart2 or csi00 mode ............................................................................................ 4 46 16.2 features .................................................................................................................. .................. 447 16.3 configuration............................................................................................................. ............... 448 16.4 registers................................................................................................................. .................. 450 16.5 interrupt request signals ...... ........................................................................................... ...... 457 16.6 operation ................................................................................................................. ................. 458 16.6.1 data format............................................................................................................. ......................458 16.6.2 transmi t operat ion...................................................................................................... ..................459 16.6.3 continuous trans mission op eration ....................................................................................... .......461 16.6.4 receive operat ion....................................................................................................... ..................465 16.6.5 recept ion error......................................................................................................... ....................466 16.6.6 parity types and corresponding operatio n ................................................................................ ....468 16.6.7 receive dat a noise filter ............................................................................................... ................469 16.6.8 sbf transmission/re ception (uar t0 only) ................................................................................. ..470 16.7 dedicated baud rate generator n (brgn).............. .............................................................. 474 16.7.1 baud rate generator n (brgn) conf igurat ion .............................................................................. ..474 16.7.2 serial cl ock gener ation ................................................................................................. ................475 16.7.3 baud rate setting ex ample ............................................................................................... .............478 16.7.4 allowable baud rate range during reception .............................................................................. ...479 16.7.5 transfer rate during continuous transmi ssion............................................................................ ...481 16.8 cautions.................................................................................................................. .................. 481 chapter 17 clocked serial interface 0 (csi0).................................................................482 17.1 features .................................................................................................................. .................. 482 17.2 configuration............................................................................................................. ............... 483 17.3 registers................................................................................................................. .................. 486 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 14 17.4 operation ................................................................................................................. ................. 495 17.4.1 transmission/reception completion in terrupt request si gnal (intcs i0n) ..................................... 495 17.4.2 single tr ansfer mode.................................................................................................... ................ 497 17.4.3 continuous transfe r mode................................................................................................ ............ 500 17.5 output pins ............................................................................................................... ................ 508 chapter 18 clocked serial interface a (csia) with automatic transmit/receive function ................................................................................ 509 18.1 functions ................................................................................................................. ................. 509 18.2 configuration............................................................................................................. ............... 510 18.3 registers ................................................................................................................. .................. 512 18.4 operation ................................................................................................................. ................. 521 18.4.1 3-wire se rial i/o mode.................................................................................................. ................ 521 18.4.2 3-wire serial i/o mode with auto matic transmit/recei ve func tion .................................................. 525 chapter 19 i 2 c bus ......................................................................................................................... . 541 19.1 features .................................................................................................................. .................. 541 19.2 configuration............................................................................................................. ............... 544 19.3 registers ................................................................................................................. .................. 546 19.4 functions ................................................................................................................. ................. 559 19.4.1 pin conf iguration ....................................................................................................... ................... 559 19.5 i 2 c bus definitions and control methods ......................... ..................................................... 560 19.5.1 start conditi on......................................................................................................... ..................... 560 19.5.2 addr esses............................................................................................................... ..................... 561 19.5.3 transfer direct ion specif ication ........................................................................................ ............ 561 19.5.4 acknowled ge signal (ack) ................................................................................................ .......... 562 19.5.5 stop c onditio n .......................................................................................................... .................... 563 19.5.6 wait si gnal (w ait)...................................................................................................... ................. 564 19.6 i 2 c interrupt request signals (intiic0) .......................... ........................................................ 566 19.6.1 master dev ice operat ion................................................................................................. .............. 566 19.6.2 slave device operation (when receivin g slave address data (matc h with addr ess)) .................... 569 19.6.3 slave device operation (w hen receiving ex tension code) ............................................................ 573 19.6.4 operation with out communi cation......................................................................................... ....... 577 19.6.5 arbitration loss oper ation (operation as slave after arbitrat ion lo ss) ............................................ 577 19.6.6 operation when arbitrat ion loss occurs (no communicati on after arbitr ation lo ss) ....................... 579 19.7 interrupt request signal (intiic 0) generation timing and wait c ontrol........................... 584 19.8 address match detection method .......................................................................................... 58 5 19.9 error detection ........................................................................................................... .............. 585 19.10 extension code ........................................................................................................... ............. 586 19.11 arbitration .............................................................................................................. ................... 587 19.12 wakeup function .......................................................................................................... ........... 588 19.13 communication reservation ................................................................................................ .. 589 19.13.1 when communication reservation functi on is enabled (iicf0 .iicrsv0 bi t = 0) ........................... 589 19.13.2 when communication reservation function is disabled (iicf0 .iicrsv0 bi t = 1) .......................... 592 19.14 cautions ................................................................................................................. ................... 593 19.15 communication operations ................................................................................................. ... 593 19.15.1 master operati on 1..................................................................................................... .................. 593 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 15 19.15.2 master operati on 2..................................................................................................... ...................595 19.15.3 slave operation........................................................................................................ .....................596 19.16 timing of data communication............................................................................................. . 599 chapter 20 dma function (dma controller) ....................................................................606 20.1 features ....................................................................................................................... ............. 606 20.2 configuration.................................................................................................................. .......... 607 20.3 registers...................................................................................................................... ............. 608 20.4 transfer targets............................................................................................................... ........ 615 20.5 transfer modes ................................................................................................................. ....... 615 20.6 transfer types ................................................................................................................. ........ 616 20.7 dma channel priorities ......................................................................................................... .. 616 20.8 time related to dma transfer................................................................................................ 617 20.9 dma transfer start factors .................................................................................................... 6 18 20.10 dma abort factors .............................................................................................................. .... 619 20.11 end of dma transfer ............................................................................................................ ... 619 20.12 operation timing ............................................................................................................... ...... 619 20.13 cautions....................................................................................................................... ............. 624 chapter 21 interrupt/exception processing function................................................629 21.1 overview .................................................................................................................. ................. 629 21.1.1 f eatur es ................................................................................................................ .......................629 21.2 non-maskable interru pts................................................................................................... ...... 633 21.2.1 oper ation............................................................................................................... .......................636 21.2.2 re store ................................................................................................................. ........................637 21.2.3 np flag................................................................................................................. .........................638 21.3 maskable interrupts ....................................................................................................... .......... 639 21.3.1 oper ation............................................................................................................... .......................639 21.3.2 re store ................................................................................................................. ........................641 21.3.3 priorities of maskable in terrupts ....................................................................................... ............642 21.3.4 interrupt contro l register (xxlcn) ...................................................................................... .............646 21.3.5 interrupt mask register s 0 to 3 (imr 0 to imr3).......................................................................... ...648 21.3.6 in-service priori ty register (ispr)..................................................................................... .............650 21.3.7 id flag ................................................................................................................. ..........................651 21.3.8 watchdog timer mode register 1 (wdtm1) .................................................................................. 652 21.4 external interrupt requ est input pins (nmi, intp0 to intp7) .... ......................................... 653 21.4.1 noise e liminat ion ....................................................................................................... ...................653 21.4.2 edge de tection.......................................................................................................... ....................655 21.5 software exceptions....................................................................................................... ......... 659 21.5.1 oper ation............................................................................................................... .......................659 21.5.2 re store ................................................................................................................. ........................660 21.5.3 ep flag................................................................................................................. .........................661 21.6 exception trap ............................................................................................................ ............. 662 21.6.1 illega l op co de ......................................................................................................... .....................662 21.6.2 debu g tr ap.............................................................................................................. ......................664 21.7 multiple interrupt servicing co ntrol ...................................................................................... 666 21.8 interrupt response time................................................................................................... ...... 668 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 16 21.9 periods in which interrupts are not acknowledge d by cpu.............................................. 669 21.10 cautions ................................................................................................................. ................... 669 chapter 22 key interrupt function ..................................................................................... 670 22.1 function .................................................................................................................. .................. 670 22.2 register .................................................................................................................. ................... 671 chapter 23 standby function ................................................................................................ .. 672 23.1 overview .................................................................................................................. ................. 672 23.2 registers ................................................................................................................. .................. 675 23.3 halt mode ................................................................................................................. .............. 678 23.3.1 setting and op eration status ............................................................................................ ............ 678 23.3.2 releasin g halt mode ..................................................................................................... ............ 678 23.4 idle mode................................................................................................................. ................ 680 23.4.1 setting and op eration status ............................................................................................ ............ 680 23.4.2 releasin g idle mode ..................................................................................................... ............. 680 23.5 stop mode ................................................................................................................. .............. 683 23.5.1 setting and op eration status ............................................................................................ ............ 683 23.5.2 releasin g stop mode ..................................................................................................... ........... 683 23.5.3 securing oscillation stabilizati on time when stop m ode is rel eased .......................................... 686 23.6 subclock operation mode................................................................................................... .... 687 23.6.1 setting and op eration status ............................................................................................ ............ 687 23.6.2 releasing subc lock operat ion mode ....................................................................................... ..... 687 23.7 sub-idle mode............................................................................................................. ............ 690 23.7.1 setting and op eration status ............................................................................................ ............ 690 23.7.2 releasing sub-idle mode ................................................................................................. .......... 690 chapter 24 reset function.................................................................................................. ...... 693 24.1 overview .................................................................................................................. ................. 693 24.2 configuration............................................................................................................. ............... 693 24.3 register to check reset source............................................................................................ . 694 24.4 reset sources ............................................................................................................. ............. 695 24.4.1 reset operatio n via reset pin ........................................................................................... ........ 695 24.4.2 reset operation by wdtres1 signal ....................................................................................... ... 699 24.4.3 reset operation by wdtres2 signal ....................................................................................... ... 700 24.4.4 power-on-clea r reset oper ation.......................................................................................... .......... 701 24.4.5 reset operation by low-voltag e detec tor................................................................................. ..... 704 24.4.6 reset operation by clock monitor........................................................................................ ......... 705 24.5 reset output function..................................................................................................... ........ 706 chapter 25 clock monitor ................................................................................................... ..... 707 25.1 function ....................................................................................................................... ............. 707 25.2 registers ...................................................................................................................... ............. 707 25.3 operation ...................................................................................................................... ............ 709 25.4 ring clock operation mode .................................................................................................... 71 2 25.4.1 setting and oper ation st atus ................................................................................................... ..... 712 25.4.2 releasing ring clo ck operati on mode ........................................................................................... 7 12 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 17 25.5 ring halt mode ................................................................................................................. ..... 714 25.5.1 setting and oper ation st atus ................................................................................................... ......714 25.5.2 releasing ring halt mode....................................................................................................... ....714 chapter 26 low-voltage detector ........................................................................................716 26.1 function ....................................................................................................................... ............. 716 26.2 configuration.................................................................................................................. .......... 716 26.3 registers...................................................................................................................... ............. 717 26.4 operation ...................................................................................................................... ............ 719 chapter 27 power-on-clear circuit ......................................................................................721 27.1 function ....................................................................................................................... ............. 721 27.2 configuration.................................................................................................................. .......... 721 27.3 operation ...................................................................................................................... ............ 722 chapter 28 regulator ........................................................................................................ ..........723 28.1 overview .................................................................................................................. ................. 723 28.2 operation ................................................................................................................. ................. 723 chapter 29 rom correction function..................................................................................725 29.1 overview .................................................................................................................. ................. 725 29.2 control registers......................................................................................................... ............ 726 29.2.1 correction address registers 0 to 3 (corad0 to cora d3) ........................................................726 29.2.2 correction contro l register (corcn)..................................................................................... .......727 29.3 rom correction operation and program flow......... ............................................................ 727 chapter 30 mask option/option byte ....................................................................................729 30.1 mask option (mask rom versions) ............................... ........................................................ 729 30.2 option byte (flash memory versions)....................... ............................................................ 730 chapter 31 flash memory.................................................................................................... .......731 31.1 features ....................................................................................................................... ............. 731 31.2 memory configurat ion........................................................................................................... .. 732 31.3 functional outline ............................................................................................................. ...... 733 31.4 rewriting by dedicated flash programmer .............. ............................................................ 735 31.4.1 programming env ironme nt ........................................................................................................ ...735 31.4.2 communicati on m ode............................................................................................................. ......736 31.4.3 flash memory cont rol ........................................................................................................... ........741 31.4.4 selection of co mmunicati on mode................................................................................................ 742 31.4.5 communication comma nds ......................................................................................................... .743 31.4.6 pin con nection ................................................................................................................. .............744 31.5 rewriting by self programming ............................................................................................. 749 31.5.1 overvi ew ....................................................................................................................... ...............749 31.5.2 featur es ....................................................................................................................... ................750 31.5.3 standard self pr ogramming flow ................................................................................................. ..751 31.5.4 flash func tions ................................................................................................................ .............752 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 18 31.5.5 pin proc essing ................................................................................................................. ............ 752 31.5.6 internal res ources used ........................................................................................................ ....... 753 chapter 32 electrical specifications (target).............................................................. 754 chapter 33 package drawings ................................................................................................ 805 appendix a development tools............................................................................................... 807 a.1 software package............................................................................................................... ...... 809 a.2 language processing software........... ................................................................................... 809 a.3 control software ............................................................................................................... ....... 809 a.4 debugging tools (hardware) ................................................ .................................................. 810 a.4.1 when using in-circuit em ulator qb-v 850eskx1 h....................................................................... 810 a.5 debugging tools (software) ................................................................................................... 81 0 a.6 embedded software.............................................................................................................. ... 811 a.7 flash memory writing tools ................................................................................................... 81 1 appendix b instruction set list ........................................................................................... .. 812 b.1 conventions.................................................................................................................... .......... 812 b.2 instruction set (in alphabetical order) ........................ .......................................................... 815 appendix c register index .................................................................................................. ....... 822 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 19 chapter 1 introduction 1.1 k1 family product lineup 1.1.1 v850es/kx1+, v850es/kx1 products lineup v850es/ke1 ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 20 the function list of the v 850es/kx1+ is shown below. product name v850es/ke1+ v850es/kf1+ v850es/kg1+ v850es/kj1+ number of pins 64 pins 80 pins 100 pins 144 pins mask rom 128 ? ? 256 ? ? 256 ? ? ? flash memory ? 128 128 ? 256 128 ? 256 128 256 internal memory (kb) ram 4 6 12 6 16 6 16 supply voltage 2.7 to 5.5 v minimum instruction execution time 50 ns @20 mhz x1 input 2 to 10 mhz subclock 32.768 khz clock ring-osc 240 khz (typ.) cmos input 8 8 8 16 cmos i/o 43 59 76 112 port n-ch open-drain i/o 2 2 4 6 16-bit (tmp) 1 ch 1 ch 1 ch 1 ch 16-bit (tm0) 1 ch 2 ch 4 ch 6 ch 8-bit (tm5) 2 ch 2 ch 2 ch 2 ch 8-bit (tmh) 2 ch 2 ch 2 ch 2 ch interval timer 1 ch 1 ch 1 ch 1 ch watch 1 ch 1 ch 1 ch 1 ch wdt1 1 ch 1 ch 1 ch 1 ch timer wdt2 1 ch 1 ch 1 ch 1 ch rto 6 bits 1 ch 6 bits 1 ch 6 bits 1 ch 6 bits 2 ch csi 2 ch 2 ch 2 ch 3 ch automatic transmit/receive 3-wire csi ? 1 ch 2 ch 2 ch uart 1 ch 1 ch 2 ch 2 ch uart supporting lin-bus 1 ch 1 ch 1 ch 1 ch serial interface i 2 c note 1 ch 1 ch 1 ch 2 ch address space ? 128 kb 3 mb 15 mb address bus ? 16 bits 22 bits 24 bits external bus mode ? multiplex only multiplex/separate dma controller ? ? 4 ch 4 ch 10-bit a/d converter 8 ch 8 ch 8 ch 16 ch 8-bit d/a converter ? ? 2 ch 2 ch external 9 9 9 9 interrupt internal 27 30 42 48 key return input 8 ch 8 ch 8 ch 8 ch reset pin provided poc 2.7 v or less fixed lvi 3.1 v/3.3 v 0.15 v or 3.5 v/3.7 v/3.9 v/4.1 v/4.3 v 0.2 v (selectable by software) clock monitor provided (monitor by ring-osc) wdt1 provided reset wdt2 provided rom correction 4 none regulator none provided standby function halt/idle/stop/sub-idle mode operating ambient temperature t a = ? 40 to +85 c note only in products with an i 2 c bus (y products). for the product name, refer to each user?s manual. .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 21 the function list of the v850es/kx1 is shown below. product name v850es/ke1 v850es/kf1 v850es/kg1 v850es/kj1 number of pins 64 pins 80 pins 100 pins 144 pins mask rom 128 ? 64/ 96 128 ? 256 ? 64/ 96 128 ? 256 ? 96/ 128 ? ? flash memory ? 128 ? ? 128 ? 256 ? ? 128 ? 256 ? 128 256 internal memory (kb) ram 4 4 6 12 4 6 16 6 16 supply voltage 2.7 to 5.5 v minimum instruction execution time 50 ns @20 mhz x1 input 2 to 10 mhz subclock 32.768 khz clock ring-osc ? cmos input 8 8 8 16 cmos i/o 43 59 76 112 port n-ch open-drain i/o 2 2 4 6 16-bit (tmp) 1 ch ? 1 ch ? 1 ch ? 1 ch 16-bit (tm0) 1 ch 2 ch 4 ch 6 ch 8-bit (tm5) 2 ch 2 ch 2 ch 2 ch 8-bit (tmh) 2 ch 2 ch 2 ch 2 ch interval timer 1 ch 1 ch 1 ch 1 ch watch 1 ch 1 ch 1 ch 1 ch wdt1 1 ch 1 ch 1 ch 1 ch timer wdt2 1 ch 1 ch 1 ch 1 ch rto 6 bits 1 ch 6 bits 1 ch 6 bits 1 ch 6 bits 2 ch csi 2 ch 2 ch 2 ch 3 ch automatic transmit/receive 3-wire csi ? 1 ch 2 ch 2 ch uart 2 ch 2 ch 2 ch 3 ch uart supporting lin-bus ? ? ? ? serial interface i 2 c note 1 ch 1 ch 1 ch 2 ch address space ? 128 kb 3 mb 15 mb address bus ? 16 bits 22 bits 24 bits external bus mode ? multiplex only multiplex/separate dma controller ? ? ? ? 10-bit a/d converter 8 ch 8 ch 8 ch 16 ch 8-bit d/a converter ? ? 2 ch 2 ch external 8 8 8 8 interrupt internal 26 26 29 31 34 40 43 key return input 8 ch 8 ch 8 ch 8 ch reset pin provided poc none lvi none clock monitor none wdt1 provided reset wdt2 provided rom correction 4 regulator none provided standby function halt/idle/stop/sub-idle mode operating ambient temperature t a = ? 40 to +85 c note only in products with an i 2 c bus (y products). for the product name, refer to each user?s manual. .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 22 1.1.2 78k0/kx1+, 78k0/kx1 products lineup mask rom: 24 kb, ram: 768 b mask rom: 16 kb, ram: 768 b mask rom: 8 kb, ram: 512 b pd780101 78k0/kb1 30-pin ssop (7.62 mm 0.65 mm pitch) single-power flash: 24 kb, ram: 768 b single-power flash: 16 kb, ram: 768 b single-power flash: 8 kb, ram: 512 b pd780102 pd780103 pd78f0103 two-power flash: 24 kb, ram: 768 b 78k0/kb1+ pd78f0102h pd78f0103h pd78f0101h 44-pin lqfp (10 10 mm 0.8 mm pitch) pd78f0114 two-power flash: 32 kb, ram: 1 kb mask rom: 32 kb, ram: 1 kb pd780114 mask rom: 24 kb, ram: 1 kb pd780113 mask rom: 16 kb, ram: 512 b pd780112 pd780111 78k0/kc1 single-power flash: 32 kb, ram: 1 kb single-power flash: 24 kb, ram: 1 kb single-power flash: 16 kb, ram: 512 b 78k0/kc1+ pd78f0113h pd78f0114h/hd note pd78f0112h mask rom: 8 kb, ram: 512 b pd78f0124 mask rom: 32 kb, ram: 1 kb pd780124 mask rom: 24 kb, ram: 1 kb pd780123 mask rom: 16 kb, ram: 512 b pd780122 mask rom: 8 kb, ram: 512 b pd780121 52-pin lqfp (10 10 mm 0.65 mm pitch) single-power flash: 32 kb, ram: 1 kb single-power flash: 24 kb, ram: 1 kb single-power flash: 16 kb, ram: 512 b 78k0/kd1+ pd78f0123h pd78f0124h/hd note pd78f0122h 78k0/kd1 two-power flash: 32 kb, ram: 1 kb pd78f0148 mask rom: 60 kb, ram: 2 kb pd780148 mask rom: 48 kb, ram: 2 kb pd780146 mask rom: 32 kb, ram: 1 kb pd780144 mask rom: 24 kb, ram: 1 kb pd780143 80-pin tqfp, qfp (12 12 mm 0.5 mm pitch, 14 14 mm 0.65 mm pitch) single-power flash: 60 kb, ram: 2 kb 78k0/kf1+ pd78f0148h/hd note 78k0/kf1 flash memory: 60 kb, ram: 2 kb pd78f0138 pd780138 pd780136 64-pin lqfp, tqfp (10 10 mm 0.5 mm pitch, 12 12 mm 0.65 mm pitch, 14 14 mm 0.8 mm pitch) 78k0/ke1+ pd78f0136h pd78f0138h/hd note 78k0/ke1 pd78f0134 mask rom: 32 kb, ram: 1 kb pd780134 mask rom: 24 kb, ram: 1 kb pd780133 mask rom: 16 kb, ram: 512 b pd780132 mask rom: 8 kb, ram: 512 b pd780131 single-power flash: 32 kb, ram: 1 kb single-power flash: 24 kb, ram: 1 kb single-power flash: 16 kb, ram: 512 b pd78f0133h pd78f0134h pd78f0132h flash memory: 32 kb, ram: 1 kb mask rom: 60 kb, ram: 2 kb mask rom: 48 kb, ram: 2 kb single-power flash: 60 kb, ram: 2 kb single-power flash: 48 kb, ram: 2 kb flash memory: 60 kb, ram: 2 kb .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 23 the function list of the 78k 0/kx1+ is shown below. product name item 78k0/kb1+ 78k0/kc1+ 78k0/kd 1+ 78k0/ke1+ 78k0/kf1+ number of pins 30 pins 44 pins 52 pins 64 pins 80 pins flash memory 8 k 16 k/24 k 16 k 24 k/32 k 16 k 24 k/32 k 16 k 24 k/ 32 k 48 k/ 60 k 60 k internal memory (byte) ram 512 768 512 512 1 k 512 1 k 2 k 2 k supply voltage v dd = 2.7 to 5.5 v minimum instruction execution time 0.125 ? ? ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 24 the function list of the 78k0/kx1 is shown below. product name item 78k0/kb1 78k0/kc1 78k0/kd1 78k0/ke1 78k0/kf1 number of pins 30 pins 44 pi ns 52 pins 64 pins 80 pins mask rom 8 k 16 k/ 24 k ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 25 1.2 features { minimum instruction execution time: 50 ns (operation at main clock (f xx ) = 20 mhz) { general-purpose registers: 32 bits 32 registers { cpu features: signed multiplication (16 16 32): 1 to 2 clocks (instructions without creating register haza rds can be continuously executed in parallel) saturated operations (overflow and underflow detection functions are included) 32-bit shift instruction: 1 clock bit manipulation instructions load/store instructions with long/short format { memory space: 64 mb of linear address space memory block division function: 2 mb, 2 mb (total of 2 blocks) ? internal memory pd703313, 703313y (mask rom: 256 kb/ram: 16 kb) pd70f3311, 70f3311y (single-power flash memory: 128 kb/ram: 6 kb) pd70f3313, 70f3313y (single-power flash memory: 256 kb/ram: 16 kb) ? external bus interface separate bus/multiplex bus output selectable 8-/16-bit data bus sizing function wait function ? programmable wait function ? external wait function idle state function bus hold function { interrupts and exceptions non-maskable interrupts: 3 sources maskable interrupts: 47 sources ( pd703313, 70f3311, 70f3313) 48 sources ( pd703313y, 70f3311y, 70f3313y) software exceptions: 32 sources exception trap: 1 source { i/o lines: total: 84 { key interrupt function { timer function 16-bit timer/event counter p: 1 channel 16-bit timer/event counter 0: 4 channels 8-bit timer/event counter 5: 2 channels 8-bit timer h: 2 channels 8-bit interval timer brg: 1 channel watch timer/interval timer: 1 channel watchdog timers watchdog timer 1 (also usable as oscillation stabilization timer): 1 channel watchdog timer 2: 1 channel .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 26 { serial interface asynchronous serial interface (uart) (supporting lin): 1 channel asynchronous serial interface (uart): 2 channels 3-wire serial i/o (csi0): 2 channels 3-wire serial i/o (with automatic transmi t/receive function) (csia): 2 channels i 2 c bus interface (i 2 c): 1 channel ( { a/d converter: 10-bit resolution { d/a converter: 8-bit resolution { dma controller: 4 channels { real-time output port: 6 bits { standby functions: halt/idle/stop modes, subclock/sub- idle modes, ring clock operation/ring halt modes { rom correction: 4 correction addresses specifiable { clock generator main clock oscillation (f x )/subclock oscillation (f xt )/ring-osc (f r ) cpu clock (f cpu ) 7 steps (f xx , f xx /2, f xx /4, f xx /8, f xx /16, f xx /32, f xt ) clock-through mode/pll mode selectable { ring-osc: 240 khz (typ.) { reset ? ? ? ? ? ? ? { low-voltage detector (lvi) { power-on-clear (poc) circuit { clock monitor (clm) circuit { package: 100-pin plastic lqfp (fine pitch) (14 .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 27 1.3 applications { automotive ? ? { home audio, car audio { av equipment { pc peripheral devices (keyboards, etc.) { household appliances ? ? { industrial devices ? ? ? .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 28 1.5 pin configuration (top view) 100-pin plastic lqfp (fine pitch) (14 14) pd703313gc- -8eu pd703313ygc- -8eu pd70f3311gc-8eu pd70f3311ygc-8eu pd70f3313gc-8eu pd70f3313ygc-8eu p31/rxd0/intp7/to03 p32/asck0/adtrg/to01 p33/ti000/to00/tip00/top00 p34/ti001/to00/tip01/top01 p35/ti010/to01 p36 p37 ev ss ev dd p38/sda0 note 3 p39/scl0 note 3 p50/kr0/ti011/rtp00 p51/kr1/ti50/rtp01 p52/kr2/to50/rtp02 p53/kr3/sia0/rtp03 p54/kr4/soa0/rtp04 p55/kr5/scka0/rtp05 p90/kr6/a0/txd1 p91/kr7/a1/rxd1 p92/ti020/a2/to02 p93/a3/ti021 p94/ti030/a4/to03 p95/a5/ti031 p96/ti51/a6/to51 p97/a7/si01 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 p70/ani0 p71/ani1 p72/ani2 p73/ani3 p74/ani4 p75/ani5 p76/ani6 p77/ani7 pdh5/a21 pdh4/a20 pdh3/a19 pdh2/a18 pdh1/a17 pdh0/a16 pdl15/ad15 pdl14/ad14 pdl13/ad13 pdl12/ad12 pdl11/ad11 pdl10/ad10 pdl9/ad9 pdl8/ad8 pdl7/ad7 pdl6/ad6 pdl5/ad5/flmd1 note 1 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 av ref0 av ss p10/ano0 p11/ano1 av ref1 p00/toh0 p01/toh1 ic note 1 /flmd0 note 1 v dd regc note 2 v ss x1 x2 reset xt1 xt2 p02/nmi p03/intp0 p04/intp1 p05/intp2 p06/intp3 p40/si00/rxd2 p41/so00/txd2 p42/sck00 p30/txd0/to02 pdl4/ad4 pdl3/ad3 pdl2/ad2 pdl1/ad1 pdl0/ad0 bv dd bv ss pct6/astb pct4/rd pct1/wr1 pct0/wr0 pcm3/hldrq pcm2/hldak pcm1/clkout pcm0/wait pcs1/cs1 pcs0/cs0 p915/a15/intp6 p914/a14/intp5 p913/a13/intp4 p912/a12/scka1 p911/a11/soa1 p910/a10/sia1 p99/a9/sck01 p98/a8/so01 notes 1. ic pin: connect directly to v ss ( pd703313, 703313y). flmd0 pin: connect to v ss in normal operation mode ( pd70f3311, 70f3311y, 70f3313, 70f3313y). flmd1 pin: used only in the pd70f3311, 70f3311y, 70f3313, and 70f3313y. 2. when using a regulator, connect the regc pin to v ss via a 10 f capacitor. when not using a regulator, connect the regc pin directly to v dd . 3. the scl0 and sda0 pins can be used only in the pd703313y, 70f3311y, and 70f3313y. caution make ev dd the same potential as v dd . bv dd can be used when v dd = ev dd bv dd . .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 29 100-pin plastic qfp (14 20) pd703313gf- -jbt pd703313ygf- -jbt pd70f3311gf-jbt pd70f3311ygf-jbt pd70f3313gf-jbt pd70f3313ygf-jbt p72/ani2 p73/ani3 p74/ani4 p75/ani5 p76/ani6 p77/ani7 pdh5/a21 pdh4/a20 pdh3/a19 pdh2/a18 pdh1/a17 pdh0/a16 pdl15/ad15 pdl14/ad14 pdl13/ad13 pdl12/ad12 pdl11/ad11 pdl10/ad10 pdl9/ad9 pdl8/ad8 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 p34/ti001/to00/tip01/top01 p35/ti010/to01 p36 p37 ev ss ev dd p38/sda00 note 3 p39/scl00 note 3 p50/kr0/ti011/rtp00 p51/kr1/ti50/rtp01 p52/kr2/to50/rtp02 p53/kr3/sia0/rtp03 p54/kr4/soa0/rtp04 p55/kr5/scka0/rtp05 p90/kr6/a0/txd1 p91/kr7/a1/rxd1 p92/ti020/a2/to02 p93/a3/ti021 p94/ti030/a4/to03 p95/a5/ti031 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 pdl7/ad7 pdl6/ad6 pdl5/ad5/flmd1 note 1 pdl4/ad4 pdl3/ad3 pdl2/ad2 pdl1/ad1 pdl0/ad0 bv dd bv ss pct6/astb pct4/rd pct1/wr1 pct0/wr0 pcm3/hldrq pcm2/hldak pcm1/clkout pcm0/wait pcs1/cs1 pcs0/cs0 p915/a15/intp6 p914/a14/intp5 p913/a13/intp4 p912/a12/scka1 p911/a11/soa1 p910/a10/sia1 p99/a9/sck01 p98/a8/so01 p97/a7/si01 p96/ti51/a6/to51 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 p71/ani1 p70/ani0 av ref0 av ss p10/ano0 p11/ano1 av ref1 p00/toh0 p01/toh1 ic note 1 /flmd0 note 1 v dd regc note 2 v ss x1 x2 reset xt1 xt2 p02/nmi p03/intp0 p04/intp1 p05/intp2 p06/intp3 p40/si00/rxd2 p41/so00/txd2 p42/sck00 p30/txd0/to02 p31/rxd0/intp7/to03 p32/asck0/adtrg/to01 p33/ti000/to00/tip00/top00 notes 1. ic pin: connect directly to v ss ( pd703313, 703313y). flmd0 pin: connect to v ss in normal operation mode ( pd70f3311, 70f3311y, 70f3313, 70f3313y). flmd1 pin: used only in the pd70f3311, 70f3311y, 70f3313, and 70f3313y. 2. when using a regulator, connect the regc pin to v ss via a 10 f capacitor. when not using a regulator, connect the regc pin directly to v dd . 3. the scl0 and sda0 pins can be used only in the pd703313y, 70f3311y, and 70f3313y. caution make ev dd the same potential as v dd . bv dd can be used when v dd = ev dd bv dd . .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 30 pin identification a0 to a21: ad0 to ad15: adtrg: ani0 to ani7: ano0, ano1: asck0: astb: av ref0 , av ref1 : av ss : bv dd : bv ss : clkout: cs0, cs1: ev dd : ev ss : flmd0, flmd1 hldak: hldrq: ic: intp0 to intp7: kr0 to kr7: nmi: p00 to p06: p10, p11: p30 to p39: p40 to p42: p50 to p55: p70 to p77: p90 to p915: pcm0 to pcm3: pcs0, pcs1: pct0, pct1 pct4, pct6: address bus address/data bus a/d trigger input analog input analog output asynchronous serial clock address strobe analog reference voltage ground for analog power supply for bus interface ground for bus interface clock output chip select power supply for port ground for port flash programming mode hold acknowledge hold request internally connected external interrupt input key return non-maskable interrupt request port 0 port 1 port 3 port 4 port 5 port 7 port 9 port cm port cs port ct pdh0 to pdh5: pdl0 to pdl15: rd: regc: reset: rtp00 to rtp05: rxd0 to rxd2: sck00, sck01, scka0, scka1: scl0: sda0: si00, si01, sia0, sia1: so00, so01, soa0, soa1: ti000, ti001, ti010, ti011, ti020, ti021, ti030, ti031, ti50, ti51, tip00, tip01: to00 to to03, to50, to51, toh0, toh1, top00, top01: txd0 to txd2: v dd : v ss : wait: wr0: wr1: x1, x2: xt1, xt2: port dh port dl read strobe regulator control reset real-time output port receive data serial clock serial clock serial data serial input serial output timer input timer output transmit data power supply ground wait lower byte write strobe upper byte write strobe crystal for main clock crystal for subclock .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 31 1.6 function block configuration (1) internal block diagram nmi to00 to to03 ti000, ti001, ti010, ti011, ti020, ti021, ti030, ti031 so00, so01 si00, si01 sck00, sck01 intp0 to intp7 top00, top01 tip00, tip01 to50, to51 ti50, ti51 toh0, toh1 txd0 to txd2 rxd0 to rxd2 asck0 rtp00 to rtp05 kr0 to kr7 rto: 1 ch sda0 note 3 scl0 note 3 clm ring-osc ram rom pc alu cpu hldrq hldak astb rd wait wr0, wr1 cs0, cs1 a0 to a21 ad0 to ad15 pdl0 to pdl15 pdh0 to pdh5 pct0, pct1, pct4, pct6 pcs0, pcs1 pcm0 to pcm3 p90 to p915 p70 to p77 p50 to p55 p40 to p42 p30 to p39 p10, p11 p00 to p06 ano0, ano1 av ref1 av ref0 av ss ani0 to ani7 adtrg ic note 4 bv dd bv ss ev dd ev ss flmd0, flmd1 note 5 v ss bcu soa0, soa1 sia0, sia1 scka0, scka1 dmac poc lvi regulator cg clkout x1 x2 xt1 xt2 reset v dd v ss regc intc 16-bit timer/event counter 0: 4 ch 16-bit timer/ event counter p: 1 ch 8-bit timer/event counter 5: 2 ch 8-bit timer h: 2 ch note 1 note 2 rom correction general-purpose registers 32 bits 32 multiplier 16 16 32 system registers 32-bit barrel shifter instruction queue port a/d converter d/a converter key interrupt function watchdog timer: 2 ch watch timer uart : 3 ch csia: 2 ch i 2 c note 3 : 1 ch csi0: 2 ch notes 1. pd703313, 703313y: 256 kb (mask rom) pd70f3311, 70f3311y: 128 kb (flash memory) pd70f3313, 70f3313y: 256 kb (flash memory) 2. pd70f3311, 70f3311y: 6 kb pd703313, 703313y, 70f3313, 70f3313y: 16 kb 3. only in the pd703313y, 70f3311y, 70f3313y 4. only in the pd703313, 703313y 5. only in the pd70f3311, 70f3311y, 70f3313, 70f3313y .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 32 (2) internal units (a) cpu the cpu uses five-stage pipeline control to enable single-clock execution of address calculations, arithmetic logic operations, data transfers, and almost all other types of instruction processing. other dedicated on-chip hardware, such as a multiplier (16 bits .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 33 (h) watch timer this timer counts the reference time (0.5 seconds) for counting the clock from the subclock (32.768 khz) or f brg (32.768 khz) from the clock generator. at t he same time, the watch timer can be used as an interval timer. (i) watchdog timer two watchdog timer channels are provided on chip to detect program loops and system abnormalities. watchdog timer 1 can be used as an interval timer. when used as a watchdog timer, it generates a non- maskable interrupt request signal (intwdt1) or system reset signal (wdtres1) after an overflow occurs. when used as an interval timer, it generates a mask able interrupt request signal (intwdtm1) after an overflow occurs. watchdog timer 2 operates by default following reset release. it generates a non-maskable interrupt request signal (intwdt2) or system rese t signal (wdtres2) after an overflow occurs. (j) serial interface (sio) the v850es/kg1+ includes four kinds of serial in terfaces: an asynchronous serial interface (uartn) (supporting 1-channel lin), a clocked serial interf ace (csi0m), a clocked serial interface with an automatic transmit/receive function (csiam), and an i 2 c bus interface (i 2 c0), and can simultaneously use up to seven channels. for uartn, data is transferred via the txdn and rxdn pins. for csi0m, data is transferred via the so0m, si0m, and sck0m pins. for csiam, data is transferred via the soam, siam, and sckam pins. for i 2 c0, data is transferred via the sda0 and scl0 pins. i 2 c0 is provided only in the pd703313y, 70f3311y, and 70f3313y. remark n = 0 to 2 m = 0, 1 (k) a/d converter this high-speed, high-resolution 10-bit a/d converter includes 8 analog input pins. conversion is performed using the successive approximation method. (l) d/a converter two 8-bit resolution d/a converter channels are incl uded on chip. the d/a converter uses the r-2r ladder method. (m) dma controller a 4-channel dma controller is provided on chip. this controller transfers data between the internal ram, on-chip peripheral i/o devices, and external memory in response to interrupt requests sent by on-chip peripheral i/o. (n) rom correction this function is used to replace part of a program in the mask rom with that contained in the internal ram. up to four correction addresses can be specified. .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 34 (o) key interrupt function a key interrupt request signal (intkr) can be generated by inputting a falling edge to the eight key input pins. (p) real-time output function this function transfers 6-bit data set beforehand to output latches upon occurrence of a timer compare register match signal. a 1-channel 6-bit data real-time out put function is provided on chip. (q) clock monitor the clock monitor samp les the main clock (f x ) using the on-chip ring-osc clock (f r ), and generates a reset request signal when the oscillat ion of the main clock is stopped. (r) low-voltage detector (lvi) the low-voltage detector com pares the supply voltage (v dd ) and detection voltage (v lvi ), and generates an internal interrupt signal or internal reset signal when v dd < v lvi . (s) power-on-clear (poc) circuit the power-on-clear circuit generates an internal reset signal at power on. the power-on-clear circuit compares the supply voltage (v dd ) and detection voltage (v poc ), and generates an internal reset signal when v dd < v poc . (t) ports as shown below, the following ports have general-p urpose port functions and control pin functions. port i/o alternate function p0 7-bit i/o nmi, external interrupt, timer output p1 2-bit i/o d/a converter analog output p3 10-bit i/o serial interface, timer i/o, external interrupt, a/d converter trigger p4 3-bit i/o serial interface p5 6-bit i/o serial interface, timer i/o, ke y interrupt function, real-time output function p7 8-bit input a/d converter analog input p9 16-bit i/o external address bus, se rial interface, timer i/o, external interrupt, key interrupt function pcm 4-bit i/o external bus control signal pcs 2-bit i/o chip select output pct 4-bit i/o external bus control signal pdh 6-bit i/o external address bus pdl 16-bit i/o external address/data bus .com .com .com .com 4 .com u datasheet
chapter 1 introduction preliminary user?s manual u16894ej1v0ud 35 1.7 overview of functions part number pd703313/ pd703313y pd70f3311/ pd70f3311y pd70f3313/ pd70f3313y rom 256 kb 128 kb (single-power flash memory) 256 kb (single-power flash memory) internal memory high-speed ram 16 kb 6 kb 16 kb buffer ram 64 bytes logical space 64 mb memory space external memory area 3 mb external bus interface address bus: 24 bits data bus: 8/16 bits multiplex bus mode/separate bus mode general-purpose registers 32 bits 32 registers ceramic/crystal/external clock when pll not used 2 to 8 mhz note 1 : 2.7 to 5.5 v regc pin connected directly to v dd 2 to 5 mhz: 4.5 to 5.5 v, 2 mhz: 2.7 to 5.5 v main clock (oscillation frequency) when pll used 10 f capacitor connected to regc pin 2 mhz: 4.0 to 5.5 v subclock (oscillation frequency) crystal/external clock (32.768 khz) minimum instruction execution time 50 ns (when main clock operated at (f xx ) = 20 mhz) dsp function 32 32 = 64: 200 to 250 ns (at 20 mhz) 32 32 + 32 = 32: 300 ns (at 20 mhz) 16 16 = 32: 50 to 100 ns (at 20 mhz) 16 16 + 32 = 32: 150 ns (at 20 mhz) i/o ports 84 ? input: 8 ? i/o: 76 (among these, n-ch open-drain output selectable: 8, fixed to n-ch open-drain output: 4) timer 16-bit timer/event counter p: 1 channel 16-bit timer/event counter 0: 4 channels 8-bit timer/event counter 5: 2 channels (16-bit timer/event counter: usable as 1 channel) 8-bit timer h: 2 channels watchdog timer: 2 channels watch timer: 1 channel 8-bit interval timer: 1 channel real-time output port 4 bits 1, 2 bits 1, or 6 bits 1 a/d converter 10-bit resolution 8 channels d/a converter 8-bit resolution 2 channels serial interface csi: 1 channel csi/uart: 1 channel csia (with automatic transmi t/receive function): 2 channels uart (supporting lin): 1 channel uart: 1 channel i 2 c bus: 1 channel note 2 dedicated baud rate generator: 3 channels interrupt sources external: 10 (10) note 3 , internal: 42/41 note 2 power save function stop/idle/halt/sub-idle mode operating supply voltage 4.5 to 5.5 v (a t 20 mhz)/2.7 to 5.5 v (at 8 mhz) package 100-pin plastic lqfp (fine pitch) (14 14 mm) 100-pin plastic qfp (14 20 mm) notes 1. these values may change after evaluation. 2. only in the pd703313y, 70f3311y, 70f3313y 3. the figure in parentheses indica tes the number of external inte rrupts for which stop mode can be released. .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 36 chapter 2 pin functions the names and functions of the pins of the v850es/kg1+ are described below, divided into port pins and non-port pins. the pin i/o buffer power supplies are divided into three systems; av ref0 /av ref1 , bv dd , and ev dd . the relationship between these power supplies and the pins is shown below. table 2-1. pin i/o buffer power supplies power supply corresponding pins av ref0 port 7 av ref1 port 1 bv dd ports cm, cs, ct, dh, dl ev dd reset, ports 0, 3 to 5, 9 2.1 list of pin functions (1) port pins (1/3) pin no. pin name gc gf i/o pull-up resistor function alternate function p00 6 8 toh0 p01 7 9 toh1 p02 17 19 nmi p03 18 20 intp0 p04 19 21 intp1 p05 20 22 intp2 p06 21 23 i/o yes port 0 i/o port input/output can be specified in 1-bit units. intp3 p10 3 5 ano0 p11 4 6 i/o yes port 1 i/o port input/output can be specified in 1-bit units. ano1 p30 25 27 txd0/to02 p31 26 28 rxd0/intp7/to03 p32 27 29 asck0/adtrg/to01 p33 28 30 ti000/to00/tip00/top00 p34 29 31 ti001/to00/tip01/top01 p35 30 32 yes ti010/to01 p36 31 33 ? p37 32 34 ? p38 35 37 sda0 note 2 p39 36 38 i/o no note 1 port 3 i/o port input/output can be specified in 1-bit units. p36 to p39 are fixed to n-ch open-drain output. scl0 note 2 notes 1. an on-chip pull-up resistor can be provided by a mask option (only in the pd703313, 703313y). 2. only in the pd703313y, 70f3311y, 70f3313y remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 37 (2/3) pin no. pin name gc gf i/o pull-up resistor function alternate function p40 22 24 si00/rxd2 p41 23 25 so00/txd2 p42 24 26 i/o yes port 4 i/o port input/output can be specified in 1-bit units. p41 and p42 can be specified as n-ch open- drain output in 1-bit units. sck00 p50 37 39 ti011/rtp00/kr0 p51 38 40 ti50/rtp01/kr1 p52 39 41 to50/rtp02/kr2 p53 40 42 sia0/rtp03/kr3 p54 41 43 soa0/rtp04/kr4 p55 42 44 i/o yes port 5 i/o port input/output can be specified in 1-bit units. p54 and p55 can be specified as n-ch open- drain output in 1-bit units. scka0/rtp05/kr5 p70 100 2 ani0 p71 99 1 ani1 p72 98 100 ani2 p73 97 99 ani3 p74 96 98 ani4 p75 95 97 ani5 p76 94 96 ani6 p77 93 95 input no port 7 input port ani7 p90 43 45 a0/txd1/kr6 p91 44 46 a1/rxd1/kr7 p92 45 47 a2/ti020/to02 p93 46 48 a3/ti021 p94 47 49 a4/ti030/to03 p95 48 50 a5/ti031 p96 49 51 a6/ti51/to51 p97 50 52 a7/si01 p98 51 53 a8/so01 p99 52 54 a9/sck01 p910 53 55 a10/sia1 p911 54 56 a11/soa1 p912 55 57 a12/scka1 p913 56 58 a13/intp4 p914 57 59 a14/intp5 p915 58 60 i/o yes port 9 i/o port input/output can be specified in 1-bit units. p98, p99, p911, and p912 can be specified as n-ch open-drain output in 1-bit units. a15/intp6 remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 38 (3/3) pin no. pin name gc gf i/o pull-up resistor function alternate function pcm0 61 63 wait pcm1 62 64 clkout pcm2 63 65 hldak pcm3 64 66 i/o yes port cm i/o port input/output can be specified in 1-bit units. hldrq pcs0 59 61 cs0 pcs1 60 62 i/o yes port cs i/o port input/output can be specified in 1-bit units. cs1 pct0 65 67 wr0 pct1 66 68 wr1 pct4 67 69 rd pct6 68 70 i/o yes port ct i/o port input/output can be specified in 1-bit units. astb pdh0 87 89 a16 pdh1 88 90 a17 pdh2 89 91 a18 pdh3 90 92 a19 pdh4 91 93 a20 pdh5 92 94 i/o yes port dh i/o port input/output can be specified in 1-bit units. a21 pdl0 71 73 ad0 pdl1 72 74 ad1 pdl2 73 75 ad2 pdl3 74 76 ad3 pdl4 75 77 ad4 pdl5 76 78 ad5/flmd1 note pdl6 77 79 ad6 pdl7 78 80 ad7 pdl8 79 81 ad8 pdl9 80 82 ad9 pdl10 81 83 ad10 pdl11 82 84 ad11 pdl12 83 85 ad12 pdl13 84 86 ad13 pdl14 85 87 ad14 pdl15 86 88 i/o yes port dl i/o port input/output can be specified in 1-bit units. ad15 note only in the .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 39 (2) non-port pins (1/5) pin no. pin name gc gf i/o pull-up resistor function alternate function a0 43 45 p90/txd1/kr6 a1 44 46 p91/rxd1/kr7 a2 45 47 p92/ti020/to02 a3 46 48 p93/ti021 a4 47 49 p94/ti030/to03 a5 48 50 p95/ti031 a6 49 51 p96/ti51/to51 a7 50 52 p97/si01 a8 51 53 p98/so01 a9 52 54 p99/sck01 a10 53 55 p910/sia1 a11 54 56 p911/soa1 a12 55 57 p912/scka1 a13 56 58 p913/intp4 a14 57 59 p914/intp5 a15 58 60 output yes address bus for external memory (when using a separate bus) p915/intp6 a16 87 89 pdh0 a17 88 90 pdh1 a18 89 91 pdh2 a19 90 92 pdh3 a20 91 93 pdh4 a21 92 94 output yes address bus for external memory pdh5 ad0 71 73 pdl0 ad1 72 74 pdl1 ad2 73 75 pdl2 ad3 74 76 pdl3 ad4 75 77 pdl4 ad5 76 78 pdl5/flmd1 note ad6 77 79 pdl6 ad7 78 80 pdl7 ad8 79 81 pdl8 ad9 80 82 pdl9 ad10 81 83 pdl10 ad11 82 84 pdl11 ad12 83 85 pdl12 ad13 84 86 pdl13 ad14 85 87 pdl14 ad15 86 88 i/o yes address/data bus for external memory pdl15 note only in the .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 40 (2/5) pin no. pin name gc gf i/o pull-up resistor function alternate function adtrg 27 29 input yes a/d converter external trigger input p32/asck0/to01 ani0 100 2 p70 ani1 99 1 p71 ani2 98 100 p72 ani3 97 99 p73 ani4 96 98 p74 ani5 95 97 p75 ani6 94 96 p76 ani7 93 95 input no analog voltage input for a/d converter p77 ano0 3 5 p10 ano1 4 6 output yes analog voltage output for d/a converter p11 asck0 27 29 input yes uart0 seri al clock input p32/adtrg/to01 astb 68 70 output yes address strobe signal output for external memory pct6 av ref0 1 3 ? ? reference voltage for a/d converter and positive power supply for alternate-function ports ? av ref1 5 7 ? ? reference voltage for d/a converter and positive power supply for alternate-function ports ? av ss 2 4 ? ? ground potential for a/d and d/a converters and alternate-function ports ? bv dd 70 72 ? ? positive power supply for bus interface and alternate-function ports ? bv ss 69 73 ? ? ground potential for bus interface and alternate-function ports ? clkout 62 64 output yes internal system clock output pcm1 cs0 59 61 pcs0 cs1 60 62 output yes chip select output pcs1 ev dd 34 36 ? ? positive power supply for external ? ev ss 33 35 ? ? ground potential for external ? flmd0 note 1 8 10 no ? flmd1 note 1 76 78 input yes flash programming mode setting pin pdl5/ad5 hldak 63 65 output yes bus hold acknowledge output pcm2 hldrq 64 66 input yes bus hold request input pcm3 ic note 2 8 10 ? ? internally connected ? notes 1. only in the .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 41 (3/5) pin no. pin name gc gf i/o pull-up resistor function alternate function intp0 18 20 p03 intp1 19 21 p04 intp2 20 22 external interrupt request input (maskable, analog noise elimination) p05 intp3 21 23 external interrupt request input (maskable, digital + anal og noise elimination) p06 intp4 56 58 p913/a13 intp5 57 59 p914/a14 intp6 58 60 p915/a15 intp7 26 28 input yes external interrupt request input (maskable, analog noise elimination) p31/rxd0/to03 kr0 37 39 p50/ti011/rtp00 kr1 38 40 p51/ti50/rtp01 kr2 39 41 p52/to50/rtp02 kr3 40 42 p53/sia0/rtp03 kr4 41 43 p54/soa0/rtp04 kr5 42 44 p55/scka0/rtp05 kr6 43 45 p90/a0/txd1 kr7 44 46 input yes key return input p91/a1/rxd1 nmi 17 19 input yes external interrupt input (non-maskable, analog noise elimination) p02 rd 67 69 output yes read strobe signal output for external memory pct4 regc 10 12 ? ? connecting capacitor for regulator output stabilization ? reset 14 16 input ? system reset input ? rtp00 37 39 p50/ti011/kr0 rtp01 38 40 p51/ti50/kr1 rtp02 39 41 p52/to50/kr2 rtp03 40 42 p53/sia0/kr3 rtp04 41 43 p54/soa0/kr4 rtp05 42 44 output yes real-time output port p55/scka0/kr5 rxd0 26 28 serial receive data input for uart0 p31/intp7/to03 rxd1 44 46 serial receive data input for uart1 p91/a1/kr7 rxd2 22 25 input yes serial receive data input for uart2 p40/si00 sck00 24 26 p42 sck01 52 54 p99/a9 scka0 42 44 p55/rtp05/kr5 scka1 55 57 i/o yes serial clock i/o for cs i00, csi01, csia0, csia1 n-ch open-drain output can be specified in 1- bit units. p912/a12 remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 42 (4/5) pin no. pin name gc gf i/o pull-up resistor function alternate function scl0 note 1 36 38 i/o no note 2 serial clock i/o for i 2 c0 fixed to n-ch open-drain output p39 sda0 note 1 35 37 i/o no note 2 serial transmit/receive data i/o for i 2 c0 fixed to n-ch open-drain output p38 si00 22 24 serial receive data input for csi00 p40/rxd2 si01 50 52 serial receive data input for csi01 p97/a7 sia0 40 42 serial receive data input for csia0 p53/rtp03/kr3 sia1 53 55 input yes serial receive data input for csia1 p910/a10 so00 23 25 p41/txd2 so01 51 53 p98/a8 soa0 41 43 p54/rtp04/kr4 soa1 54 56 output yes serial transmit data output for csi00, csi01, csia0, csia1 n-ch open-drain output can be specified in 1- bit units. p911/a11 ti000 28 30 capture trigger input/external event input for tm00 p33/to00/tip00/top00 ti001 29 31 capture trigger input for tm00 p34/to00/tip01/top01 ti010 30 32 capture trigger input/external event input for tm01 p35/to01 ti011 37 39 capture trigger input for tm01 p50/rtp00/kr0 ti020 45 47 capture trigger input/external event input for tm02 p92/a2/to02 ti021 46 48 capture trigger input for tm02 p93/a3 ti030 47 49 capture trigger input/external event input for tm03 p94/a4/to03 ti031 48 50 capture trigger input for tm03 p95/a5 ti50 38 40 external event input for tm50 p51/rtp01/kr1 ti51 49 51 external event input for tm51 p96/a6/to51 tip00 28 30 capture trigger input/external event input for tmp0 p33/ti000/to00/top00 tip01 29 31 input yes capture trigger input for tmp0 p34/ti001/to00/top01 notes 1. only in the pd703313y, 70f3311y, 70f3313y 2. an on-chip pull-up resistor can be provided by a mask option (only in the pd703313, 703313y). remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 43 (5/5) pin no. pin name gc gf i/o pull-up resistor function alternate function 28 30 p33/ti000/tip00/top00 to00 29 31 timer output for tm00 p34/ti001/tip01/top01 27 29 p32/asck0/adtrg to01 30 32 timer output for tm01 p35/ti010 25 27 p30/txd0 to02 45 47 timer output for tm02 p92/a2/ti020 26 28 p31/rxd0/intp7 to03 47 49 timer output for tm03 p94/a4/ti030 to50 39 41 timer output for tm50 p52/rtp02/kr2 to51 49 51 timer output for tm51 p96/a6/ti51 toh0 6 8 timer output for tmh0 p00 toh1 7 9 timer output for tmh1 p01 top00 28 30 p33/ti000/to00/tip00 top01 29 31 output yes timer output for tmp0 p34/ti001/to00/tip01 txd0 25 27 serial transmit data output for uart0 p30/to02 txd1 43 45 serial transmit data output for uart1 p90/a0/kr6 txd2 23 25 output yes serial transmit data output for uart2 p41/so00 v dd 9 11 ? ? positive power s upply pin for internal ? v ss 11 13 ? ? ground potential for internal ? wait 61 63 input no external wait input pcm0 wr0 65 67 write strobe for external memory (lower 8 bits) pct0 wr1 66 68 output no write strobe for external memory (higher 8 bits) pct1 x1 12 14 input no ? x2 13 15 ? no connecting resonator for main clock ? xt1 15 17 input no ? xt2 16 18 ? no connecting resonator for subclock ? remark gc: 100-pin plastic lqfp (fine pitch) (14 .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 44 2.2 pin status the address bus becomes undefined during accesses to the internal ram and rom. the data bus goes into the high-impedance state without data output. the external bus control signal becomes inactive. during peripheral i/o access, the address bus outputs t he addresses of the on-chip peripheral i/os that are accessed. the data bus goes into t he high-impedance state without data output. the external bus control signal becomes inactive. table 2-2. pin operation status in operation modes operating status pin reset note 1 halt mode idle mode/ stop mode idle state note 2 bus hold ad0 to ad15 (pdl0 to pdl15) hi-z note 3 hi-z held hi-z a0 to a15 (p90 to p915) hi-z undefined note 4 hi-z held hi-z a16 to a21 (pdh0 to pdh5) hi -z undefined hi-z held hi-z wait (pcm0) hi-z ? ? ? ? clkout (pcm1) hi-z operat ing l operating operating cs0, cs1 (pcs0, pcs1) hi-z h h held hi-z wr0, wr1 (pct0, pct1) hi-z h h h hi-z rd (pct4) hi-z h h h hi-z astb (pct6) hi-z h h h hi-z hldak (pcm2) hi-z operating h h l hldrq (pcm3) hi-z o perating ? ? operating notes 1. since the bus control pin is also used as a port pin, it is initialized to the port mode (input) after reset. 2. the pin statuses in the idle stat e inserted after the t3 state in the multiplex bus mode and after the t2 state in the separate bus mode are listed. 3. in separate bus mode: hi-z in multiplex bus mode: undefined 4. only in separate bus mode remark hi-z: high impedance h: high-level output l: low-level output ?: input without sampling (in put acknowledgment not possible) .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 45 2.3 pin i/o circuits and recommend ed connection of unused pins (1/2) pin no. pin alternate function gc gf i/o circuit type recommended connection p00 toh0 6 8 p01 toh1 7 9 5-a p02 nmi 17 19 p03 to p06 intp0 to intp3 18 to 21 20 to 23 5-w input: independently connect to ev dd or ev ss via a resistor. output: leave open. p10 ano0 3 5 p11 ano1 4 6 12-b input: independently connect to av ref1 or av ss via a resistor. output: leave open. p30 txd0/to02 25 27 5-a p31 rxd0/intp7/to03 26 28 p32 asck0/adtrg/to01 27 29 p33 ti000/to00/tip00/top00 28 30 p34 ti001/to00/tip01/top01 29 31 p35 ti010/to01 30 32 5-w p36, p37 ? 31, 32 33, 34 13-ah p38 sda0 note 35 37 p39 scl0 note 36 38 13-ae p40 si00/rxd2 22 24 5-w p41 so00/txd2 23 25 10-e p42 sck00 24 26 10-f p50 ti011/rtp00/kr0 37 39 p51 ti50/rtp01/kr1 38 40 p52 to50/rtp02/kr2 39 41 p53 sia0/rtp03/kr3 40 42 8-a p54 soa0/rtp04/kr4 41 43 p55 scka0/rtp05/kr5 42 44 10-a input: independently connect to ev dd or ev ss via a resistor. output: leave open. p70 to p77 ani0 to ani7 100 to 93 2, 1, 100 to 95 9-c connect to av ref0 or av ss . p90 a0/txd1/kr6 43 45 p91 a1/rxd1/kr7 44 46 p92 a2/ti020/to02 45 47 8-a p93 a3/ti021 46 48 5-w p94 a4/ti030/to03 47 49 8-a p95 a5/ti031 48 50 5-w p96 a6/ti51/to51 49 51 8-a p97 a7/si01 50 52 5-w p98 a8/so01 51 53 10-e input: independently connect to ev dd or ev ss via a resistor. output: leave open. note only in the pd703313y, 70f3311y, 70f3313y remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 46 (2/2) pin no. pin alternate function gc gf i/o circuit type recommended connection p99 a9/sck01 52 54 10-f p910 a10/sia1 53 55 5-w p911 a11/soa1 54 56 10-e p912 a12/scka1 55 57 10-f p913 to p915 a13/intp4 to a15/intp6 56 to 58 58 to 60 5-w input: independently connect to ev dd or ev ss via a resistor. output: leave open. pcm0 wait 61 63 pcm1 clkout 62 64 pcm2 hldak 63 65 pcm3 hldrq 64 66 5-a pcs0, pcs1 cs0, cs1 59, 60 61, 62 5-a pct0 wr0 65 67 pct1 wr1 66 68 pct4 rd 67 69 pct6 astb 68 70 5-a pdl0 to pdl4 ad0 to ad4 71 to 75 73 to 77 pdl5 ad5/flmd1 76 78 pdl6 to pdl15 ad6 to ad15 77 to 86 79 to 88 5-a pdh0 to pdh5 a16 to a21 87 to 92 89 to 94 5-a input: independently connect to bv dd or bv ss via a resistor. output: leave open. av ref0 ? 1 3 ? directly connect to v dd . av ref1 ? 5 7 ? directly connect to v dd . av ss ? 2 4 ? ? bv dd ? 70 72 ? ? bv ss ? 69 71 ? ? ev dd ? 34 36 ? ? ev ss ? 33 35 ? ? ic note 1 ? 8 10 ? directly connect to ev ss or v ss or pull down with a 10 k ? resistor. reset ? 14 16 2 ? flmd0 note 2 ? 8 10 ? directly connect to ev ss or v ss or pull down with a 10 k ? resistor. v dd ? 9 11 ? ? v ss ? 11 13 ? ? x1 ? 12 14 ? ? x2 ? 13 15 ? ? xt1 ? 15 17 16 directly connect to v ss note 3 . xt2 ? 16 18 16 leave open. notes 1. only in the pd703313, 703313y 2. only in the pd70f3311, 70f3311y, 70f3313, 70f3313y 3. be sure to set the psmr.xtstp bit to 1 when this pin is not used. remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 47 2.4 pin i/o circuits (1/2) type 2 type 9-c type 5-a type 10-a type 5-w type 10-e type 8-a type 10-f schmitt-triggered input with hysteresis characteristics in data output disable p-ch in/out v dd n-ch input enable p-ch v dd pull-up enable in comparator + ? av ref0 (threshold voltage) p-ch av ss n-ch input enable pull-up enable data output disable input enable v dd p-ch v dd p-ch in/out n -ch data output disable v dd p-ch in/out n-ch open drain pull-up enable v dd p-ch data output disable v dd p-ch in/out n-ch open drain input enable pull-up enable v dd p-ch pull-up enable data output disable v dd p-ch v dd p-ch in/out n-ch data output disable v dd p-ch in/out n-ch open drain input enable pull-up enable v dd p-ch v ss v ss v ss v ss v ss v ss .com .com .com .com 4 .com u datasheet
chapter 2 pin functions preliminary user?s manual u16894ej1v0ud 48 (2/2) type 12-b type 13-ah type 13-ae type 16 p-ch feedback cut-off xt1 xt2 pull-up enable data output disable input enable av ref1 p-ch av ref1 p-ch in/out n-ch p-ch n-ch analog output voltage av ss data output disable input enable in/out n -ch v ss mask option v dd output disable rd in/out n-ch data medium-voltage input buffer v dd p-ch v ss mask option v dd port read remark read v dd as ev dd or bv dd . also, read v ss as ev ss or bv ss . .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 49 chapter 3 cpu functions the cpu of the v850es/kg1+ is based on the risc architecture and executes most instructions in one clock cycle by using 5-stage pipeline control. 3.1 features { number of instructions: 83 { minimum instruction execution time: 50.0 ns (@ 20 mhz operation: 4.5 to 5.5 v, not using regulator) 125 ns note (@ 8 mhz operation: 2.7 to 5.5 v, not using regulator) { memory space program (physical address) space: 64 mb linear data (logical address) space: 4 gb linear ? memory block division function: 2 mb, 2 mb/total of 2 blocks { general-purpose registers: 32 bits 32 { internal 32-bit architecture { 5-stage pipeline control { multiply/divide instructions { saturated operation instructions { 32-bit shift instruction: 1 clock { load/store instruction with long/short format { four types of bit manipulation instructions ? set1 ? clr1 ? not1 ? tst1 note this value may change after evaluation. .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 50 3.2 cpu register set the cpu registers of the v850es/kg1+ can be classified in to two categories: a general-purpose program register set and a dedicated system register set. all the registers have 32-bit width. for details, refer to the v850es architecture user?s manual . (1) program register set (2) system register set r0 r1 r2 r3 r4 r5 r6 r7 r8 r9 r10 r11 r12 r13 r14 r15 r16 r17 r18 r19 r20 r21 r22 r23 r24 r25 r26 r27 r28 r29 r30 r31 (zero register) (assembler-reserved register) (stack pointer (sp)) (global pointer (gp)) (text pointer (tp)) (element pointer (ep)) (link pointer (lp)) pc (program counter) psw (program status word) ecr (interrupt source register) fepc fepsw (nmi status saving register) (nmi status saving register) eipc eipsw (interrupt status saving register) (interrupt status saving register) 31 0 31 0 31 0 ctbp (callt base pointer) dbpc dbpsw (exception/debug trap status saving register) (exception/debug trap status saving register) ctpc ctpsw (callt execution status saving register) (callt execution status saving register) .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 51 3.2.1 program register set the program register set includes general-p urpose registers and a program counter. (1) general-purpose registers (r0 to r31) thirty-two general-purpose registers, r0 to r31, are available. all of these registers c an be used as a data variable or address variable. however, r0 and r30 are implicitly us ed by instructions and care must be ex ercised when using these registers. r0 always holds 0 and is used for operations that use 0 and offset 0 addressing. r30 is used as a base pointer when performing memory access with the sld and sst instructions. also, r1, r3 to r5, and r31 are implicitly used by the assembler and c compiler. t herefore, before using these registers, their contents mu st be saved so that they are not lost, and they must be restor ed to the registers after the registers have been used. there are cases when r2 is used by the real-time os. if r2 is not used by the real-time os, r2 can be used as a variable register. table 3-1. program registers name usage operation r0 zero register always holds 0 r1 assembler-reserved regist er working register for generating 32-bit immediate r2 address/data variable register (when r2 is not used by the real-time os to be used) r3 stack pointer used to generate stack frame when function is called r4 global pointer used to acce ss global variable in data area r5 text pointer register to indicate the start of the text area (area for placing program code) r6 to r29 address/data variable register r30 element pointer base pointer when memory is accessed r31 link pointer used by compiler when calling function pc program counter holds instruction address during program execution (2) program counter (pc) this register holds the address of the in struction under execution. the lower 26 bits of this register are valid, and bits 31 to 26 are fixed to 0. if a carry occu rs from bit 25 to bit 26, it is ignored. bit 0 is fixed to 0, and branching to an odd address cannot be performed. 31 26 25 1 0 pc fixed to 0 instruction address under execution 0 after reset 00000000h .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 52 3.2.2 system register set system registers control the status of the cpu and hold interrupt information. read from and write to system regist ers are performed by setting the system register numbers shown below with the system register load/st ore instructions (ldsr, stsr instructions). table 3-2. system register numbers operand specification enabled system register no. system register name ldsr instruction stsr instruction 0 interrupt status saving register (eipc) note 1 yes yes 1 interrupt status saving register (eipsw) note 1 yes yes 2 nmi status saving register (fepc) note 1 yes yes 3 nmi status saving register (fepsw) note 1 yes yes 4 interrupt source register (ecr) no yes 5 program status word (psw) yes yes 6 to 15 reserved numbers for future function expansion (the operation is not guaranteed if accessed.) no no 16 callt execution status saving register (ctpc) yes yes 17 callt execution status saving register (ctpsw) yes yes 18 exception/debug trap status saving register (dbpc) yes note 2 yes 19 exception/debug trap status saving register (dbpsw) yes note 2 yes 20 callt base pointer (ctbp) yes yes 21 to 31 reserved numbers for future function expansion (the operation is not guaranteed if accessed.) no no notes 1. since only one set of these registers is available, the contents of this register must be saved by the program when multiple interrupt servicing is enabled. 2. can be accessed only during the period from the dbtrap instruction to the dbret instruction. caution even if bit 0 of eipc, fepc, or ctpc is set (1) by the ldsr instruction, bit 0 is ignored during return with the reti instruction following interrupt servicing (because bit 0 of pc is fixed to 0). when setting a value to eipc, fepc, and ctpc, set an even number (bit 0 = 0). .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 53 (1) interrupt status saving registers (eipc, eipsw) there are two interrupt status sa ving registers, eipc and eipsw. upon occurrence of a software exception or a maskable interrupt, the contents of the program counter (pc) are saved to eipc and the contents of the program status word (psw) are saved to eipsw (upon occurrence of a non-maskable interrupt (nmi), t he contents are saved to the nmi status saving registers (fepc, fepsw)). the address of the next instruction fo llowing the instruction executed when a software exception or maskable interrupt occurs is saved to eipc, e xcept for some instructions (refer to 21.9 periods in which interrupts are not acknowledged by cpu ). the current psw contents are saved to eipsw. since there is only one set of interrupt status saving registers, the contents of these registers must be saved by the program when multiple interrupt servicing is enabled. bits 31 to 26 of eipc and bits 31 to 8 of eipsw are rese rved (fixed to 0) for future function expansion. when the reti instruction is execut ed, the values in eipc and eipsw are restored to the pc and psw, respectively. 31 0 eipc (pc contents saved) 0 0 after reset 0xxxxxxxh (x: undefined) 26 25 0 0 0 0 31 0 eipsw (psw contents saved) 0 0 after reset 000000xxh (x: undefined) 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 54 (2) nmi status saving registers (fepc, fepsw) there are two nmi status saving registers, fepc and fepsw. upon occurrence of a non-maskable interrupt (nmi), the contents of the program co unter (pc) are saved to fepc and the contents of the program status word (psw) are saved to fepsw. the address of the next instruction fo llowing the instruction executed when a non-maskable interrupt occurs is saved to fepc, except fo r some instructions. the current psw contents are saved to fepsw. since there is only one set of nmi stat us saving registers, the contents of these registers must be saved by the program when multiple interrupt servicing is performed. bits 31 to 26 of fepc and bits 31 to 8 of fepsw are re served (fixed to 0) for future function expansion. 31 0 fepc (pc contents saved) 0 0 after reset 0xxxxxxxh (x: undefined) 26 25 0 0 0 0 31 0 fepsw (psw contents saved) 0 0 after reset 000000xxh (x: undefined) 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 (3) interrupt source register (ecr) upon occurrence of an interrupt or an exception, the inte rrupt source register (ecr) holds the source of an interrupt or an exception. the value held by ecr is the exception code c oded for each interrupt source. this register is a read-only register, and thus data cannot be written to it using the ldsr instruction. 31 0 ecr fecc eicc after reset 00000000h 16 15 bit position bit name description 31 to 16 fecc non-maskable interrupt (nmi) exception code 15 to 0 eicc exception, maskable interrupt exception code .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 55 (4) program status word (psw) the program status word (psw) is a collection of flags that indicate the program status (instruction execution result) and the cpu status. when the contents of this register are changed using the ldsr instruct ion, the new contents become valid immediately following completion of ldsr instruction execution. interrupt request acknowledgment is held pending while a write to the psw is being executed by the ldsr instruction. bits 31 to 8 are reserved (fixed to 0) for future function expansion. (1/2) 31 0 psw rfu after reset 00000020h 87 np 6 ep 5 id 4 sat 3 cy 2 ov 1 sz bit position flag name description 31 to 8 rfu reserved field. fixed to 0. 7 np indicates that non-maskable interrupt (nmi) servici ng is in progress. this flag is set to 1 when an nmi request is acknowledged, and disables multiple interrupts. 0: nmi servicing not in progress 1: nmi servicing in progress 6 ep indicates that exception processing is in prog ress. this flag is set to 1 when an exception occurs. moreover, interrupt requests can be acknowledged even when this bit is set. 0: exception processing not in progress 1: exception processing in progress 5 id indicates whether maskable interrupt r equest acknowledgment is enabled. 0: interrupt enabled 1: interrupt disabled 4 sat note indicates that the result of executing a saturated operation instruction has overflowed and that the calculation result is saturated. since this is a cumulative flag, it is set to 1 when the result of a saturated operation instruction becomes saturated, and it is not cleared to 0 even if the operation results of successive instructions do no t become saturated. this flag is neither set nor cleared when arithmetic operation instructions are executed. 0: not saturated 1: saturated 3 cy indicates whether carry or borrow occu rred as the result of an operation. 0: no carry or borrow occurred 1: carry or borrow occurred 2 ov note indicates whether overflow o ccurred during an operation. 0: no overflow occurred 1: overflow occurred. 1 s note indicates whether the result of an operation is negative. 0: operation result is positive or 0. 1: operation result is negative. 0 z indicates whether operation result is 0. 0: operation result is not 0. 1: operation result is 0. remark note is explained on the following page. .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 56 (2/2) note during saturated operation, the saturated operation results are dete rmined by the contents of the ov flag and s flag. the sat flag is set (to 1) only when the ov flag is set (to 1) during saturated operation. flag status operation result status sat ov s saturated operation result maximum positive value exceeded 1 1 0 7fffffffh maximum negative value exceeded 1 1 1 80000000h positive (maximum value not exceeded) 0 negative (maximum value not exceeded) holds value before operation 0 1 actual operation result (5) callt execution status saving registers (ctpc, ctpsw) there are two callt execut ion status saving registers, ctpc and ctpsw. when the callt instruction is execut ed, the contents of the program count er (pc) are saved to ctpc, and the program status word (psw) contents are saved to ctpsw. the contents saved to ctpc consist of the address of the next instructi on after the callt instruction. the current psw contents are saved to ctpsw. bits 31 to 26 of ctpc and bits 31 to 8 of ctpsw are re served (fixed to 0) for future function expansion. 31 0 ctpc (pc contents saved) 0 0 after reset 0xxxxxxxh (x: undefined) 26 25 0 0 0 0 31 0 ctpsw (psw contents saved) 0 0 after reset 000000xxh (x: undefined) 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 57 (6) exception/debug trap status saving registers (dbpc, dbpsw) there are two exception/de bug trap status saving registers, dbpc and dbpsw. upon occurrence of an exception trap or debug trap, the contents of the program counter (pc) are saved to dbpc, and the program status word (psw) contents are saved to dbpsw. the contents saved to dbpc consist of the address of the next instructi on after the instruction executed when an exception trap or debug trap occurs. the current psw contents are saved to dbpsw. bits 31 to 26 of dbpc and bits 31 to 8 of dbpsw are re served (fixed to 0) for future function expansion. 31 0 dbpc (pc contents saved) 0 0 after reset 0xxxxxxxh (x: undefined) 26 25 0 0 0 0 31 0 dbpsw (psw contents saved) 0 0 after reset 000000xxh (x: undefined) 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 (7) callt base pointer (ctbp) the callt base pointer (ctbp) is used to specify table addresses and generate target addresses (bit 0 is fixed to 0). bits 31 to 26 are reserved (fixed to 0) for future function expansion. 31 0 ctbp (base address) 0 0 after reset 0xxxxxxxh (x: undefined) 26 25 0 0 0 0 0 .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 58 3.3 operating modes the v850es/kg1+ has the following operating modes. (1) normal operating mode after the system has been released from the reset state, t he pins related to the bus in terface are set to the port mode, execution branches to the reset entry address of the internal rom, and instruction processing is started. (2) flash memory programming mode this mode is valid only in flash memory versions ( .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 59 3.4 address space 3.4.1 cpu address space up to 4 mb of external memory area in a linear address space (program area) of up to 64 mb, internal rom area, and internal ram area are supported for instruction addr ess addressing. during operand addressing (data access), up to 4 gb of linear address space (data space) is support ed. however, the 4 gb address space is viewed as 64 images of a 64 mb physical address space. in other wo rds, the same 64 mb physical address space is accessed regardless of the value of bits 31 to 26. figure 3-1. address space image program space internal ram area access-prohibited area reserved area external memory area internal rom area (external memory) data space image 63 image 1 image 0 on-chip peripheral i/o area internal ram area access-prohibited area external memory area internal rom area (external memory) 4 mb 4 gb 64 mb 64 mb .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 60 3.4.2 wraparound of cpu address space (1) program space of the 32 bits of the program counter (p c), the higher 6 bits are fixed to 0 and only the lower 26 bits are valid. even if a carry or borrow occurs from bit 25 to bit 26 as a result of branch address calc ulation, the higher 6 bits ignore this and remain 0. therefore, the lower-limit address of the program space, 0000 0000h, and the upper-limit address, 03ffffffh, are contiguous addresses, and the program space is wrapped around at the boundary of these addresses. caution no instructions can be fetched from the 4 kb area of 03fff000h to 03ffffffh because this area is an on-chip peripheral i/o area. the refore, do not execute any branch operation instructions in which the destination addres s will reside in any part of this area. 03fffffeh 03ffffffh 00000000h 00000001h program space program space (+) direction (?) direction (2) data space the result of an operand address calculation that exceeds 32 bits is ignored. therefore, the lower-limit addre ss of the data space, address 0000 0000h, and the upper-limit address, ffffffffh, are contiguous addresses, and the data space is wrapped around at t he boundary of these addresses. fffffffeh ffffffffh 00000000h 00000001h data space data space (+) direction (?) direction .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 61 3.4.3 memory map the v850es/kg1+ has reserved areas as shown below. figure 3-2. data memory map (physical addresses) 3ffffffh 3fec000h 3febfffh 0400000h 03fffffh 0200000h 01fffffh 0000000h 01fffffh 0100000h 00fffffh 3fff000h 3ffefffh 3fff000h 3ffefffh 3ffffffh 0000000h 3fec000h (80 kb) access-prohibited area internal rom area note (1 mb) external memory area (1 mb) internal ram area (60 kb) on-chip peripheral i/o area (4 kb) access-prohibited area external memory area (2 mb) (2 mb) cs0 cs1 note fetch access and read access to addresses 0000000h to 00fffffh is performed for the internal rom area, but in the case of data write access, it is performed for an external memory area. .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 62 figure 3-3. program memory map 03ff0000h 03feffffh 03fff000h 03ffefffh 03ffffffh 00400000h 003fffffh 00100000h 000fffffh 00200000h 001fffffh 00000000h internal ram area (60 kb) access-prohibited area (program fetch disabled area) access-prohibited area (program fetch disabled area) external memory area (1 mb) external memory area (2 mb) internal rom area (1 mb) cs0 cs1 .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 63 3.4.4 areas (1) internal rom area an area of 1 mb from 0000000h to 00fffffh is reserved for the internal rom area. (a) internal rom (256 kb) a 256 kb area from 0000000h to 003ffffh is provided in the fo llowing products. addresses 0040000h to 00fffffh are an access-prohibited area. ? pd703313, 703313y, 70f3313, 70f3313y figure 3-4. internal rom area (256 kb) access-prohibited area internal rom area (256 kb) 0040000h 00fffffh 003ffffh 0000000h (b) internal rom (128 kb) a 128 kb area from 0000000h to 001ffffh is provided in the fo llowing products. addresses 0020000h to 00fffffh are an access-prohibited area. ? pd70f3311, 70f3311y figure 3-5. internal rom area (128 kb) 00fffffh 0020000h 001ffffh 0000000h access-prohibited area internal rom area (128 kb) .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 64 (2) internal ram area an area of 60 kb maximum from 3ff0000h to 3ffef ffh is reserved for the internal ram area. (a) internal ram (16 kb) a 16 kb area from 3ffb000h to 3ffefffh is provided as physical internal ram. addresses 3ff0000h to 3ffafffh ar e an access-prohibited area. ? pd703313, 703313y, 70f3313, 70f3313y figure 3-6. internal ram area (16 kb) internal ram area (16 kb) access-prohibited area physical address space logical address space 3ffb000h 3ffefffh 3ffafffh 3ff0000h fffb000h fffefffh fffafffh fff0000h .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 65 (b) internal ram (6 kb) a 6 kb area from 3ffd800h to 3ffefffh is provided as physical internal ram. addresses 3ff0000h to 3ffd7ffh are an access-prohibited area. ? pd70f3311, 70f3311y figure 3-7. internal ram area (6 kb) internal ram area (6 kb) access-prohibited area 3ffefffh 3ffd800h 3ffd7ffh 3ff0000h fffefffh fffd800h fffd7ffh fff0000h physical address space logical address space .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 66 (3) on-chip peripheral i/o area a 4 kb area from 3fff000h to 3ffffffh is rese rved as the on-chip peripheral i/o area. figure 3-8. on-chip peripheral i/o area 3ffffffh 3fff000h on-chip peripheral i/o area (4 kb) fffffffh ffff000h physical address space logical address space peripheral i/o registers assigned with functions such as on-chip peripheral i/o operation mode specification and state monitoring are mapped to the on-chip peripheral i/o area. program fetches are not allowed in this area. cautions 1. if word access of a register is atte mpted, halfword access to th e word area is performed twice, first for the lower bits , then for the higher bits, ignoring the lower 2 address bits. 2. if a register that can be accessed in byte units is accessed in halfword units, the higher 8 bits become undefined if the access is a read operation. if a write access is performed, only the data in the lower 8 bits is written to the register. 3. addresses that are not defined as registers are reserved for future expansion. if these addresses are accessed, the operation is undefined and not guaranteed. (4) external memory area 3 mb (0100000h to 03fffffh) are pr ovided as the external memory area. for details, refer to chapter 5 bus control function . .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 67 3.4.5 recommended use of address space the architecture of the v850es/kg1+ requires that a register that serv es as a pointer be secured for address generation when operand data in t he data space is accessed. the address stored in this pointer 32 kb can be directly accessed by an instruction for operand data. be cause the number of general-pur pose registers that can be used as a pointer is limited, however, by keeping the performance from dropping during address calculation when a pointer value is changed, as many general-purpose regist ers as possible can be secured for variables, and the program size can be reduced. (1) program space of the 32 bits of the pc (program count er), the higher 6 bits are fixed to 0, and only the lower 26 bits are valid. regarding the program space, theref ore, a 64 mb space of contiguous addresses starting from 00000000h unconditionally corresponds to the memory map. to use the internal ram area as the pr ogram space, access following addresses. ram size access address 6 kb 3ffd800h to 3ffefffh 16 kb 3ffb000h to 3ffefffh (2) data space with the v850es/kg1+, it seems t hat there are sixty-four 64 mb addr ess spaces on the 4 gb cpu address space. therefore, the least signific ant bit (bit 25) of a 26-bit address is sign-extended to 32 bits and allocated as an address. .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 68 (a) application example of wraparound if r = r0 (zero register) is specified for the ld/st disp16 [r] instruction, a range of addresses 00000000h 32 kb can be addressed by sign-extended disp16. all the resources, including the internal hardware, can be addressed by one pointer. the zero register (r0) is a register fixed to 0 by har dware, and practically elimin ates the need for registers dedicated to pointers. example : pd703313, 703313y 32 kb 4 kb 16 kb 12 kb internal rom area on-chip peripheral i/o area access-prohibited area (r = ) 0003ffffh 00007fffh 00000000h fffff000h ffffefffh ffff8000h internal ram area ffffb000h ffffafffh .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 69 figure 3-9. recommended memory map xfffffffh xffff000h xfffefffh xfffb000h xfffafffh xffec000h xffebfffh x0100000h x00fffffh x0000000h data space program space on-chip peripheral i/o on-chip peripheral i/o internal ram internal ram internal rom external memory use prohibited external memory use prohibited internal ram on-chip peripheral i/o note internal rom internal rom program space 64 mb ffffffffh fffff000h ffffefffh fffec000h fffebfffh 04000000h 03ffffffh 03fff000h 03ffefffh 03ffb000h 03ffafffh 03fec000h 03febfffh 00400000h 003fffffh 00040000h 0003ffffh 00100000h 000fffffh 00000000h note access to this area is prohibited. to access the on-chip peripheral i/o in th is area, specify addresses ffff000h to fffffffh. remarks 1. indicates the recommended area. 2. this figure is the recommended memory map of the pd703313 and 703313y. .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 70 3.4.6 peripheral i/o registers (1/11) operable bit unit address function register name symbol r/w 1 8 16 after reset fffff004h port dl register pdl r/w 0000h note fffff004h port dl register l pdll r/w 00h note fffff005h port dl register h pdlh r/w 00h note fffff006h port dh register pdh r/w 00h note fffff008h port cs register pcs r/w 00h note fffff00ah port ct register pct r/w 00h note fffff00ch port cm register pcm r/w 00h note fffff024h port dl mode register pmdl r/w ffffh fffff024h port dl mode register l pmdll r/w ffh fffff025h port dl mode register h pmdlh r/w ffh fffff026h port dh mode register pmdh r/w ffh fffff028h port cs mode register pmcs r/w ffh fffff02ah port ct mode register pmct r/w ffh fffff02ch port cm mode register pmcm r/w ffh fffff044h port dl mode control register pmcdl r/w 0000h fffff044h port dl mode control register l pmcdll r/w 00h fffff045h port dl mode control register h pmcdlh r/w 00h fffff046h port dh mode control register pmcdh r/w 00h fffff048h port cs mode control register pmccs r/w 00h fffff04ah port ct mode control register pmcct r/w 00h fffff04ch port cm mode control register pmccm r/w 00h fffff066h bus size configur ation register bsc r/w 5555h fffff06eh system wait control register vswc r/w 77h fffff080h dma source address register 0l dsa0l r/w undefined fffff082h dma source address register 0h dsa0h r/w undefined fffff084h dma destination address register 0l dda0l r/w undefined fffff086h dma destination address register 0h dda0h r/w undefined fffff088h dma source address register 1l dsa1l r/w undefined fffff08ah dma source address register 1h dsa1h r/w undefined fffff08ch dma destination address register 1l dda1l r/w undefined fffff08eh dma destination address register 1h dda1h r/w undefined fffff090h dma source address register 2l dsa2l r/w undefined fffff092h dma source address register 2h dsa2h r/w undefined fffff094h dma destination address register 2l dda2l r/w undefined fffff096h dma destination address register 2h dda2h r/w undefined fffff098h dma source address register 3l dsa3l r/w undefined fffff09ah dma source address register 3h dsa3h r/w undefined fffff09ch dma destination address register 3l dda3l r/w undefined fffff09eh dma destination address register 3h dda3h r/w undefined note the output latch is 00h or 0000h. when input, the pin status is read. .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 71 (2/11) operable bit unit address function register name symbol r/w 1 8 16 after reset fffff0c0h dma byte count register 0 dbc0 r/w undefined fffff0c2h dma byte count register 1 dbc1 r/w undefined fffff0c4h dma byte count register 2 dbc2 r/w undefined fffff0c6h dma byte count register 3 dbc3 r/w undefined fffff0d0h dma addressing control register 0 dadc0 r/w 0000h fffff0d2h dma addressing control register 1 dadc1 r/w 0000h fffff0d4h dma addressing control register 2 dadc2 r/w 0000h fffff0d6h dma addressing control register 3 dadc3 r/w 0000h fffff0e0h dma channel control register 0 dchc0 r/w 00h fffff0e2h dma channel control register 1 dchc1 r/w 00h fffff0e4h dma channel control register 2 dchc2 r/w 00h fffff0e6h dma channel control register 3 dchc3 r/w 00h fffff100h interrupt mask register 0 imr0 r/w ffffh fffff100h interrupt mask register 0l imr0l r/w ffh fffff101h interrupt mask register 0h imr0h r/w ffh fffff102h interrupt mask register 1 imr1 r/w ffffh fffff102h interrupt mask register 1l imr1l r/w ffh fffff103h interrupt mask register 1h imr1h r/w ffh fffff104h interrupt mask register 2 imr2 r/w ffffh fffff104h interrupt mask register 2l imr2l r/w ffh fffff105h interrupt mask register 2h imr2h r/w ffh fffff106h interrupt mask register 3 imr3 r/w ffffh fffff106h interrupt mask register 3l imr3l r/w ffh fffff107h interrupt mask register 3h imr3h r/w ffh fffff110h interrupt control register wdt1ic r/w 47h fffff112h interrupt control register pic0 r/w 47h fffff114h interrupt control register pic1 r/w 47h fffff116h interrupt control register pic2 r/w 47h fffff118h interrupt control register pic3 r/w 47h fffff11ah interrupt control register pic4 r/w 47h fffff11ch interrupt control register pic5 r/w 47h fffff11eh interrupt control register pic6 r/w 47h fffff120h interrupt control register tm0ic00 r/w 47h fffff122h interrupt control register tm0ic01 r/w 47h fffff124h interrupt control register tm0ic10 r/w 47h fffff126h interrupt control register tm0ic11 r/w 47h fffff128h interrupt control register tm5ic0 r/w 47h fffff12ah interrupt control register tm5ic1 r/w 47h fffff12ch interrupt control register csi0ic0 r/w 47h fffff12eh interrupt control register csi0ic1 r/w 47h fffff130h interrupt control register sreic0 r/w 47h fffff132h interrupt control register sric0 r/w 47h .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 72 (3/11) operable bit unit address function register name symbol r/w 1 8 16 after reset fffff134h interrupt control register stic0 r/w 47h fffff136h interrupt control register sreic1 r/w 47h fffff138h interrupt control register sric1 r/w 47h fffff13ah interrupt control register stic1 r/w 47h fffff13ch interrupt control register tmhic0 r/w 47h fffff13eh interrupt control register tmhic1 r/w 47h fffff140h interrupt control register csiaic0 r/w 47h fffff142h interrupt control register iicic0 note r/w 47h fffff144h interrupt control register adic r/w 47h fffff146h interrupt control register kric r/w 47h fffff148h interrupt control register wtiic r/w 47h fffff14ah interrupt control register wtic r/w 47h fffff14ch interrupt control register brgic r/w 47h fffff14eh interrupt control register tm0ic20 r/w 47h fffff150h interrupt control register tm0ic21 r/w 47h fffff152h interrupt control register tm0ic30 r/w 47h fffff154h interrupt control register tm0ic31 r/w 47h fffff156h interrupt control register csiaic1 r/w 47h fffff162h interrupt control register sreic2 r/w 47h fffff164h interrupt control register sric2 r/w 47h fffff166h interrupt control register stic2 r/w 47h fffff170h interrupt control register lviic r/w 47h fffff172h interrupt control register pic7 r/w 47h fffff174h interrupt control register tp0ovic r/w 47h fffff176h interrupt control register tp0ccic0 r/w 47h fffff178h interrupt control register tp0ccic1 r/w 47h fffff17ah interrupt control register dmaic0 r/w 47h fffff17ch interrupt control register dmaic1 r/w 47h fffff17eh interrupt control register dmaic2 r/w 47h fffff180h interrupt control register dmaic3 r/w 47h fffff1fah in-service priority register ispr r 00h fffff1fch command register prcmd w undefined fffff1feh power save control register psc r/w 00h fffff200h a/d converter mode register adm r/w 00h fffff201h analog input channel specification register ads r/w 00h fffff202h power fail comparison mode register pfm r/w 00h fffff203h power fail comparison threshold register pft r/w 00h fffff204h a/d conversion result register adcr r undefined fffff205h a/d conversion result register h adcrh r undefined fffff280h d/a conversion value se tting register 0 dacs0 r/w 00h fffff282h d/a conversion value se tting register 1 dacs1 r/w 00h fffff284h d/a converter mode register dam r/w 00h note only in the pd703313y, 70f3311y, 70f3313y .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 73 (4/11) operable bit unit address function register name symbol r/w 1 8 16 after reset fffff300h key return mode register krm r/w 00h fffff308h selector operation control register 0 selcnt0 r/w 00h fffff30ah selector operation control register 1 selcnt1 r/w 00h fffff318h digital noise elimination control register nfc r/w 00h fffff400h port 0 register p0 r/w 00h note fffff402h port 1 register p1 r/w 00h note fffff406h port 3 register p3 r/w 0000h note fffff406h port 3 register l p3l r/w 00h note fffff407h port 3 register h p3h r/w 00h note fffff408h port 4 register p4 r/w 00h note fffff40ah port 5 register p5 r/w 00h note fffff40eh port 7 register p7 r undefined fffff412h port 9 register p9 r/w 0000h note fffff412h port 9 register l p9l r/w 00h note fffff413h port 9 register h p9h r/w 00h note fffff420h port 0 mode register pm0 r/w feh fffff422h port 1 mode register pm1 r/w ffh fffff426h port 3 mode register pm3 r/w ffffh fffff426h port 3 mode register l pm3l r/w ffh fffff427h port 3 mode register h pm3h r/w ffh fffff428h port 4 mode register pm4 r/w ffh fffff42ah port 5 mode register pm5 r/w ffh fffff432h port 9 mode register pm9 r/w ffffh fffff432h port 9 mode register l pm9l r/w ffh fffff433h port 9 mode register h pm9h r/w ffh fffff440h port 0 mode control register pmc0 r/w 00h fffff446h port 3 mode control register pmc3 r/w 0000h fffff446h port 3 mode control register l pmc3l r/w 00h fffff447h port 3 mode control register h pmc3h r/w 00h fffff448h port 4 mode control register pmc4 r/w 00h fffff44ah port 5 mode control register pmc5 r/w 00h fffff452h port 9 mode control register pmc9 r/w 0000h fffff452h port 9 mode control register l pmc9l r/w 00h fffff453h port 9 mode control register h pmc9h r/w 00h fffff466h port 3 function control register pfc3 r/w 00h fffff468h port 4 function control register pfc4 r/w 00h fffff46ah port 5 function control register pfc5 r/w 00h fffff472h port 9 function control register pfc9 r/w 0000h fffff472h port 9 function control register l pfc9l r/w 00h fffff473h port 9 function control register h pfc9h r/w 00h fffff484h data wait control register 0 dwc0 r/w 7777h fffff488h address wait control register awc r/w ffffh note the output latch is 00h or 0000h. when input, the pin status is read. .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 74 (5/11) operable bit unit address function register name symbol r/w 1 8 16 after reset fffff48ah bus cycle control register bcc r/w aaaah fffff580h 8-bit timer h mode register 0 tmhmd0 r/w 00h fffff581h 8-bit timer h carrier control register 0 tmcyc0 r/w 00h fffff582h 8-bit timer h compare register 00 cmp00 r/w 00h fffff583h 8-bit timer h compare register 01 cmp01 r/w 00h fffff590h 8-bit timer h mode register 1 tmhmd1 r/w 00h fffff591h 8-bit timer h carrier control register 1 tmcyc1 r/w 00h fffff592h 8-bit timer h compare register 10 cmp10 r/w 00h fffff593h 8-bit timer h compare register 11 cmp11 r/w 00h fffff5a0h tmp0 control register 0 tp0ctl0 r/w 00h fffff5a1h tmp0 control register 1 tp0ctl1 r/w 00h fffff5a2h tmp0 i/o control register 0 tp0ioc0 r/w 00h fffff5a3h tmp0 i/o control register 1 tp0ioc1 r/w 00h fffff5a4h tmp0 i/o control register 2 tp0ioc2 r/w 00h fffff5a5h tmp0 option register 0 tp0opt0 r/w 00h fffff5a6h tmp0 capture/compare register 0 tp0ccr0 r/w 0000h fffff5a8h tmp0 capture/compare register 1 tp0ccr1 r/w 0000h fffff5aah tmp0 counter read buffer register tp0cnt r 0000h fffff5c0h 16-bit timer counter 5 tm5 r 0000h fffff5c0h 8-bit timer counter 50 tm50 r 00h fffff5c1h 8-bit timer counter 51 tm51 r 00h fffff5c2h 16-bit timer compare register 5 cr5 r/w 0000h fffff5c2h 8-bit timer compare register 50 cr50 r/w 00h fffff5c3h 8-bit timer compare register 51 cr51 r/w 00h fffff5c4h timer clock selection register 5 tcl5 r/w 0000h fffff5c4h timer clock selection register 50 tcl50 r/w 00h fffff5c5h timer clock selection register 51 tcl51 r/w 00h fffff5c6h 16-bit timer mode control register 5 tmc5 r/w 0000h fffff5c6h 8-bit timer mode control register 50 tmc50 r/w 00h fffff5c7h 8-bit timer mode control register 51 tmc51 r/w 00h fffff600h 16-bit timer counter 00 tm00 r 0000h fffff602h 16-bit timer capture/compare register 000 cr000 r/w 0000h fffff604h 16-bit timer capture/compare register 001 cr001 r/w 0000h fffff606h 16-bit timer mode control register 00 tmc00 r/w 00h fffff607h prescaler mode register 00 prm00 r/w 00h fffff608h capture/compare control register 00 crc00 r/w 00h fffff609h 16-bit timer output control register 00 toc00 r/w 00h fffff610h 16-bit timer counter 01 tm01 r 0000h fffff612h 16-bit timer capture/compare register 010 cr010 r/w 0000h fffff614h 16-bit timer capture/compare register 011 cr011 r/w 0000h fffff616h 16-bit timer mode control register 01 tmc01 r/w 00h fffff617h prescaler mode register 01 prm01 r/w 00h fffff618h capture/compare control register 01 crc01 r/w 00h .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 75 (6/11) operable bit unit address function register name symbol r/w 1 8 16 after reset fffff619h 16-bit timer output control register 01 toc01 r/w 00h fffff620h 16-bit timer counter 02 tm02 r 0000h fffff622h 16-bit timer capture/compare register 020 cr020 r/w 0000h fffff624h 16-bit timer capture/compare register 021 cr021 r/w 0000h fffff626h 16-bit timer mode control register 02 tmc02 r/w 00h fffff627h prescaler mode register 02 prm02 r/w 00h fffff628h capture/compare control register 02 crc02 r/w 00h fffff629h 16-bit timer output control register 02 toc02 r/w 00h fffff630h 16-bit timer counter 03 tm03 r 0000h fffff632h 16-bit timer capture/compare register 030 cr030 r/w 0000h fffff634h 16-bit timer capture/compare register 031 cr031 r/w 0000h fffff636h 16-bit timer mode control register 03 tmc03 r/w 00h fffff637h prescaler mode register 03 prm03 r/w 00h fffff638h capture/compare control register 03 crc03 r/w 00h fffff639h 16-bit timer output control register 03 toc03 r/w 00h fffff680h watch timer operation mode register wtm r/w 00h fffff6c0h oscillation stabilization time selection register osts r/w note fffff6c1h watchdog timer clock sele ction register wdcs r/w 00h fffff6c2h watchdog timer mode register 1 wdtm1 r/w 00h fffff6d0h watchdog timer mode register 2 wdtm2 r/w 67h fffff6d1h watchdog timer enable register wdte r/w 9ah fffff6e0h real-time output buffer register l0 rtbl0 r/w 00h fffff6e2h real-time output buffer register h0 rtbh0 r/w 00h fffff6e4h real-time output port mode register 0 rtpm0 r/w 00h fffff6e5h real-time output port control register 0 rtpc0 r/w 00h fffff706h port 3 function control expansion register pfce3 r/w 00h fffff802h system status register sys r/w 00h fffff806h pll control register pllctl r/w 01h fffff80ch ring-osc mode register rcm r/w 00h fffff810h dma trigger factor register 0 dtfr0 r/w 00h fffff812h dma trigger factor register 1 dtfr1 r/w 00h fffff814h dma trigger factor register 2 dtfr2 r/w 00h fffff816h dma trigger factor register 3 dtfr3 r/w 00h fffff820h power save mode register psmr r/w 00h fffff828h processor clock control register pcc r/w 03h note the value can be set to 00h or 01h by the option byte or a mask option setting. for details, refer to chapter 30 mask option/option byte. .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 76 (7/11) operable bit unit address function register name symbol r/w 1 8 16 32 after reset fffff82eh cpu operation clock status register ccls r 00h fffff840h correction address register 0 corad0 r/w 00000000h fffff840h correction address register 0l corad0l r/w 0000h fffff842h correction address register 0h corad0h r/w 0000h fffff844h correction address register 1 corad1 r/w 00000000h fffff844h correction address register 1l corad1l r/w 0000h fffff846h correction address register 1h corad1h r/w 0000h fffff848h correction address register 2 corad2 r/w 00000000h fffff848h correction address register 2l corad2l r/w 0000h fffff84ah correction address r egister 2h corad2h r/w 0000h fffff84ch correction address register 3 corad3 r/w 00000000h fffff84ch correction address register 3l corad3l r/w 0000h fffff84eh correction address r egister 3h corad3h r/w 0000h fffff860h reset noise elimination control register rnzc r/w 00h fffff870h clock monitor mode register clm r/w 00h fffff880h correction control register corcn r/w 00h fffff888h reset source flag register resf r/w note fffff890h low-voltage detection register lvim r/w 00h fffff891h low-voltage detection level selection register lvis r/w 00h fffff8b0h interval timer brg mode register prsm r/w 00h fffff8b1h interval timer brg compare register prscm r/w 00h fffffa00h asynchronous serial interface mode register 0 asim0 r/w 01h fffffa02h receive buffer register 0 rxb0 r ffh fffffa03h asynchronous serial interfac e status register 0 asis0 r 00h fffffa04h transmit buffer register 0 txb0 r/w ffh fffffa05h asynchronous serial interface transmit status register 0 asif0 r 00h fffffa06h clock select register 0 cksr0 r/w 00h fffffa07h baud rate generator control register 0 brgc0 r/w ffh fffffa08h lin operation control register 0 asicl0 r/w 16h fffffa10h asynchronous serial interface mode register 1 asim1 r/w 01h fffffa12h receive buffer register 1 rxb1 r ffh fffffa13h asynchronous serial interf ace status register 1 asis1 r 00h fffffa14h transmit buffer register 1 txb1 r/w ffh fffffa15h asynchronous serial interface transmit status register 1 asif1 r 00h fffffa16h clock select register 1 cksr1 r/w 00h fffffa17h baud rate generator control register 1 brgc1 r/w ffh fffffa20h asynchronous serial interface mode register 2 asim2 r/w 01h fffffa22h receive buffer register 2 rxb2 r ffh fffffa23h asynchronous serial interf ace status register 2 asis2 r 00h fffffa24h transmit buffer register 2 txb2 r/w ffh fffffa25h asynchronous serial interface transmit status register 2 asif2 r 00h fffffa26h clock select register 2 cksr2 r/w 00h fffffa27h baud rate generator control register 2 brgc2 r/w ffh fffffb00h tip00 noise elimination control register p0nfc r/w 00h note the value varies depending on the reset source (refer to 24.3 (1) reset source flag register (resf) ). .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 77 (8/11) operable bit unit address function register name symbol r/w 1 8 16 after reset fffffb04h tip01 noise elimination control register p1nfc r/w 00h fffffc00h external interrupt falling edge specification register 0 intf0 r/w 00h fffffc06h external interrupt falling edge specification register 3 intf3 r/w 00h fffffc13h external interrupt falling edge specification register 9h intf9h r/w 00h fffffc20h external interrupt rising edge specification register 0 intr0 r/w 00h fffffc26h external interrupt rising edge specification register 3 intr3 r/w 00h fffffc33h external interrupt rising edge specification register 9h intr9h r/w 00h fffffc40h pull-up resistor option register 0 pu0 r/w 00h fffffc42h pull-up resistor option register 1 pu1 r/w 00h fffffc46h pull-up resistor option register 3 pu3 r/w 00h fffffc48h pull-up resistor option register 4 pu4 r/w 00h fffffc4ah pull-up resistor option register 5 pu5 r/w 00h fffffc52h pull-up resistor option register 9 pu9 r/w 0000h fffffc52h pull-up resistor option register 9l pu9l r/w 00h fffffc53h pull-up resistor option register 9h pu9h r/w 00h fffffc67h port 3 function register h pf3h r/w 00h fffffc68h port 4 function register pf4 r/w 00h fffffc6ah port 5 function register pf5 r/w 00h fffffc73h port 9 function register h pf9h r/w 00h fffffd00h clocked serial inte rface mode register 00 csim00 r/w 00h fffffd01h clocked serial interface clock selection register 0 csic0 r/w 00h fffffd02h clocked serial interfac e receive buffer register 0 sirb0 r 0000h fffffd02h clocked serial interfac e receive buffer register 0l sirb0l r 00h fffffd04h clocked serial interface transmit buffer register 0 sotb0 r/w 0000h fffffd04h clocked serial interfac e transmit buffer register 0l sotb0l r/w 00h fffffd06h clocked serial interface read -only receive buffer register 0 sirbe0 r 0000h fffffd06h clocked serial interface read -only receive buffer register 0l sirbe0l r 00h fffffd08h clocked serial interface init ial transmit buffer register 0 sotbf0 r/w 0000h fffffd08h clocked serial interface in itial transmit buffer register 0l sotbf0l r/w 00h fffffd0ah serial i/o shift register 0 sio00 r/w 00h fffffd0ah serial i/o shift register 0l sio00l r/w 0000h fffffd10h clocked serial inte rface mode register 01 csim01 r/w 00h fffffd11h clocked serial interface clock selection register 1 csic1 r/w 00h fffffd12h clocked serial interfac e receive buffer register 1 sirb1 r 0000h fffffd12h clocked serial interfac e receive buffer register 1l sirb1l r 00h fffffd14h clocked serial interface transmit buffer register 1 sotb1 r/w 0000h fffffd14h clocked serial interfac e transmit buffer register 1l sotb1l r/w 00h fffffd16h clocked serial interface read -only receive buffer register 1 sirbe1 r 0000h fffffd16h clocked serial interface read -only receive buffer register 1l sirbe1l r 00h fffffd18h clocked serial interface init ial transmit buffer register 1 sotbf1 r/w 0000h fffffd18h clocked serial interface in itial transmit buffer register 1l sotbf1l r/w 00h fffffd1ah serial i/o shift register 1 sio01 r/w 00h fffffd1ah serial i/o shift register 1l sio01l r/w 0000h .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 78 (9/11) operable bit unit address function register name symbol r/w 1 8 16 after reset fffffd40h serial operation mode specification register 0 csima0 r/w 00h fffffd41h serial status register 0 csis0 r/w 00h fffffd42h serial trigger register 0 csit0 r/w 00h fffffd43h divisor selection register 0 brgca0 r/w 03h fffffd44h automatic data transfer address point specification register 0 adtp0 r/w 00h fffffd45h automatic data transfer interval specification register 0 adti0 r/w 00h fffffd46h serial i/o shift register a0 sioa0 r/w 00h fffffd47h automatic data transfer address count register 0 adtc0 r 00h fffffd50h serial operation mode specification register 1 csima1 r/w 00h fffffd51h serial status register 1 csis1 r/w 00h fffffd52h serial trigger register 1 csit1 r/w 00h fffffd53h divisor selection register 1 brgca1 r/w 03h fffffd54h automatic data transfer address point specification register 1 adtp1 r/w 00h fffffd55h automatic data transfer interval specification register 1 adti1 r/w 00h fffffd56h serial i/o shift register a1 sioa1 r/w 00h fffffd57h automatic data transfer address count register 1 adtc1 r 00h fffffd80h iic shift register 0 iic0 note r/w 00h fffffd82h iic control register 0 iicc0 note r/w 00h fffffd83h slave address register 0 sva0 note r/w 00h fffffd84h iic clock selection register 0 iiccl0 note r/w 00h fffffd85h iic function expansion register 0 iicx0 note r/w 00h fffffd86h iic status register 0 iics0 note r 00h fffffd8ah iic flag register 0 iicf0 note r/w 00h fffffe00h csia0 buffer ram 0 csia0b0 r/w undefined fffffe00h csia0 buffer ram 0l csia0b0l r/w undefined fffffe01h csia0 buffer ram 0h csia0b0h r/w undefined fffffe02h csia0 buffer ram 1 csia0b1 r/w undefined fffffe02h csia0 buffer ram 1l csia0b1l r/w undefined fffffe03h csia0 buffer ram 1h csia0b1h r/w undefined fffffe04h csia0 buffer ram 2 csia0b2 r/w undefined fffffe04h csia0 buffer ram 2l csia0b2l r/w undefined fffffe05h csia0 buffer ram 2h csia0b2h r/w undefined fffffe06h csia0 buffer ram 3 csia0b3 r/w undefined fffffe06h csia0 buffer ram 3l csia0b3l r/w undefined fffffe07h csia0 buffer ram 3h csia0b3h r/w undefined fffffe08h csia0 buffer ram 4 csia0b4 r/w undefined fffffe08h csia0 buffer ram 4l csia0b4l r/w undefined fffffe09h csia0 buffer ram 4h csia0b4h r/w undefined fffffe0ah csia0 buffer ram 5 csia0b5 r/w undefined fffffe0ah csia0 buffer ram 5l csia0b5l r/w undefined fffffe0bh csia0 buffer ram 5h csia0b5h r/w undefined note only in the pd703313y, 70f3311y, 70f3313y .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 79 (10/11) operable bit unit address function register name symbol r/w 1 8 16 after reset fffffe0ch csia0 buffer ram 6 csia0b6 r/w undefined fffffe0ch csia0 buffer ram 6l csia0b6l r/w undefined fffffe0dh csia0 buffer ram 6h csia0b6h r/w undefined fffffe0eh csia0 buffer ram 7 csia0b7 r/w undefined fffffe0eh csia0 buffer ram 7l csia0b7l r/w undefined fffffe0fh csia0 buffer ram 7h csia0b7h r/w undefined fffffe10h csia0 buffer ram 8 csia0b8 r/w undefined fffffe10h csia0 buffer ram 8l csia0b8l r/w undefined fffffe11h csia0 buffer ram 8h csia0b8h r/w undefined fffffe12h csia0 buffer ram 9 csia0b9 r/w undefined fffffe12h csia0 buffer ram 9l csia0b9l r/w undefined fffffe13h csia0 buffer ram 9h csia0b9h r/w undefined fffffe14h csia0 buffer ram a csia0ba r/w undefined fffffe14h csia0 buffer ram al csia0bal r/w undefined fffffe15h csia0 buffer ram ah csia0bah r/w undefined fffffe16h csia0 buffer ram b csia0bb r/w undefined fffffe16h csia0 buffer ram bl csia0bbl r/w undefined fffffe17h csia0 buffer ram bh csia0bbh r/w undefined fffffe18h csia0 buffer ram c csia0bc r/w undefined fffffe18h csia0 buffer ram cl csia0bcl r/w undefined fffffe19h csia0 buffer ram ch csia0bch r/w undefined fffffe1ah csia0 buffer ram d csia0bd r/w undefined fffffe1ah csia0 buffer ram dl csia0bdl r/w undefined fffffe1bh csia0 buffer ram dh csia0bdh r/w undefined fffffe1ch csia0 buffer ram e csia0be r/w undefined fffffe1ch csia0 buffer ram el csia0bel r/w undefined fffffe1dh csia0 buffer ram eh csia0beh r/w undefined fffffe1eh csia0 buffer ram f csia0bf r/w undefined fffffe1eh csia0 buffer ram fl csia0bfl r/w undefined fffffe1fh csia0 buffer ram fh csia0bfh r/w undefined fffffe20h csia1 buffer ram 0 csia1b0 r/w undefined fffffe20h csia1 buffer ram 0l csia1b0l r/w undefined fffffe21h csia1 buffer ram 0h csia1b0h r/w undefined fffffe22h csia1 buffer ram 1 csia1b1 r/w undefined fffffe22h csia1 buffer ram 1l csia1b1l r/w undefined fffffe23h csia1 buffer ram 1h csia1b1h r/w undefined fffffe24h csia1 buffer ram 2 csia1b2 r/w undefined fffffe24h csia1 buffer ram 2l csia1b2l r/w undefined fffffe25h csia1 buffer ram 2h csia1b2h r/w undefined fffffe26h csia1 buffer ram 3 csia1b3 r/w undefined fffffe26h csia1 buffer ram 3l csia1b3l r/w undefined fffffe27h csia1 buffer ram 3h csia1b3h r/w undefined .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 80 (11/11) operable bit unit address function register name symbol r/w 1 8 16 after reset fffffe28h csia1 buffer ram 4 csia1b4 r/w undefined fffffe28h csia1 buffer ram 4l csia1b4l r/w undefined fffffe29h csia1 buffer ram 4h csia1b4h r/w undefined fffffe2ah csia1 buffer ram 5 csia1b5 r/w undefined fffffe2ah csia1 buffer ram 5l csia1b5l r/w undefined fffffe2bh csia1 buffer ram 5h csia1b5h r/w undefined fffffe2ch csia1 buffer ram 6 csia1b6 r/w undefined fffffe2ch csia1 buffer ram 6l csia1b6l r/w undefined fffffe2dh csia1 buffer ram 6h csia1b6h r/w undefined fffffe2eh csia1 buffer ram 7 csia1b7 r/w undefined fffffe2eh csia1 buffer ram 7l csia1b7l r/w undefined fffffe2fh csia1 buffer ram 7h csia1b7h r/w undefined fffffe30h csia1 buffer ram 8 csia1b8 r/w undefined fffffe30h csia1 buffer ram 8l csia1b8l r/w undefined fffffe31h csia1 buffer ram 8h csia1b8h r/w undefined fffffe32h csia1 buffer ram 9 csia1b9 r/w undefined fffffe32h csia1 buffer ram 9l csia1b9l r/w undefined fffffe33h csia1 buffer ram 9h csia1b9h r/w undefined fffffe34h csia1 buffer ram a csia1ba r/w undefined fffffe34h csia1 buffer ram al csia1bal r/w undefined fffffe35h csia1 buffer ram ah csia1bah r/w undefined fffffe36h csia1 buffer ram b csia1bb r/w undefined fffffe36h csia1 buffer ram bl csia1bbl r/w undefined fffffe37h csia1 buffer ram bh csia1bbh r/w undefined fffffe38h csia1 buffer ram c csia1bc r/w undefined fffffe38h csia1 buffer ram cl csia1bcl r/w undefined fffffe39h csia1 buffer ram ch csia1bch r/w undefined fffffe3ah csia1 buffer ram d csia1bd r/w undefined fffffe3ah csia1 buffer ram dl csia1bdl r/w undefined fffffe3bh csia1 buffer ram dh csia1bdh r/w undefined fffffe3ch csia1 buffer ram e csia1be r/w undefined fffffe3ch csia1 buffer ram el csia1bel r/w undefined fffffe3dh csia1 buffer ram eh csia1beh r/w undefined fffffe3eh csia1 buffer ram f csia1bf r/w undefined fffffe3eh csia1 buffer ram fl csia1bfl r/w undefined fffffe3fh csia1 buffer ram fh csia1bfh r/w undefined ffffff44h pull-up resistor option register dl pudl r/w 0000h ffffff44h pull-up resistor option register dll pudll r/w 00h ffffff45h pull-up resistor option register dlh pudlh r/w 00h ffffff46h pull-up resistor option register dh pudh r/w 00h ffffff48h pull-up resistor option register cs pucs r/w 00h ffffff4ah pull-up resistor option register ct puct r/w 00h ffffff4ch pull-up resistor option register cm pucm r/w 00h ffffffbeh external bus interface mode control register eximc r/w 00h .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 81 3.4.7 special registers special registers are registers that prevent invalid da ta from being written when an inadvertent program loop occurs. the v850es/kg1+ has the following six special registers. ? power save control register (psc) ? processor clock control register (pcc) ? watchdog timer mode register (wdtm1) ? clock monitor mode register (clm) ? reset source flag register (resf) ? low-voltage detection register (lvim) moreover, there is also the prcmd r egister, which is a protection register for write operations to the special registers that prevents the application system from unexpectedly stopping due to an inadvertent program loop. write access to the special registers is performed with a specia l sequence and illegal store oper ations are notified to the sys register. (1) setting data to special registers setting data to a special register is done in the following sequence. <1> disable the dma operation. <2> prepare the data to be set to the specia l register in a general-purpose register. <3> write the data prepared in st ep <2> to the prcmd register. <4> write the setting data to the special regi ster (using following instructions). ? store instruction (st/sst instruction) ? bit manipulation instruction (set1/clr1/not1 instruction) <5> to <9> insert nop inst ructions (5 instructions) note . <10> enable the dma operation if dma is necessary. note when switching to the idle mode or the stop m ode (psc.stp bit = 1), 5 nop instructions must be inserted immediately after switching is performed. caution to resume the dma operation in the status before the dma operati on is disabled after a special sequence, the dchcn regi ster status must be stored before the dma operation is disabled. after the dchcn register status is stored, the dchcn.tcn bit must be checked before the dma operation is resumed and the following processing must be executed according to the tcn bit status because the dma transfer completion may occur before the dma operation is disabled. ? when the tcn bit is 0 (dma transfer not co mpleted), the contents of the dchcn register stored before the dma operation is disabled are written to the dchcn register again. when the tcn bit is 1 (dma transfer comp leted), the dma transfer completion processing is executed. remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 82 [description example] when using psc register (standby mode setting) st.b r11, psmr[r0] ; psmr register setting (idle, stop mode setting) ld.b dchcn[r0], r12 ; (a) dma transfer status stored andi 0xfe, r12, r13 <1> st.b r13, dchcn[r0] ; (b) dma operation stopped note 1 <2> mov 0x02, r10 <3> st.b r10, prcmd[r0] ; prcmd register write <4> st.b r10, psc[r0] ; psc register setting <5> nop note 2 ; dummy instruction <6> nop note 2 ; dummy instruction <7> nop note 2 ; dummy instruction <8> nop note 2 ; dummy instruction <9> nop note 2 ; dummy instruction tst1 7, dchcn[r0] ; check whether dma transfer is completed or not between (a) and (b) (whether the dchcn regi ster status is updated or not) bne next ; if updated, dma transfer completion processing (to next routine) <10> st.b r12, dchcn[r0] ; if not updated, return to the status of (a) (dma transfer enable) (next instruction) no special sequence is required to read special registers. notes 1. a bit manipulation instruction is not used so as to prevent the dma transfer completion status flag (dchcn.tcn bit) from being cleared to 0 via read ing. the tcn bit cannot be cleared to 0 by writing 0. 2. when switching to the idle mode or the stop m ode (psc.stp bit = 1), 5 nop instructions must be inserted immediately after switching is performed. remark n = 0 to 3 cautions 1. interrupts are not acknowledged for the store instruction for the prcmd register. this is because continuous execution of store instructi ons by the program in steps <3> and <4> above is assumed. if another instruction is placed between step <3> and <4>, the above sequence may not be realized when an interrupt is acknowle dged for that instruction, which may cause malfunction. 2. the data written to the prcmd register is dummy data, but use the same register as the general-purpose register used for setting data to the special register (step <4>) when writing to the prcmd register (step <3>). the same applies to when using a general- purpose register for addressing. .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 83 (2) command register (prcmd) the prcmd register is an 8-bit register used to prevent data from being written to registers that may have a large influence on the system, possibly causing the application system to unexpectedly stop, when an inadvertent program loop occurs. only the first write operat ion to the special register following the execution of a previously executed writ e operation to the prcmd register, is valid. as a result, register values can be overwritten onl y using a preset sequence, preventing invalid write operations. this register can only be written in 8-bit units (if it is read, an undefined value is returned). 7 reg7 prcmd 6 reg6 5 reg5 4 reg4 3 reg3 2 reg2 1 reg1 0 reg0 after reset: undefined w address: fffff1fch .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 84 (3) system status register (sys) this register is allocated with status flags showing the operat ing state of the entire system. this register can be read or writt en in 8-bit or 1-bit units. 0 protection error has not occurred protection error has occurred prerr 0 1 detection of protection error sys 0 0 0 0 0 0 prerr after reset: 00h r/w address: fffff802h < > the operation conditions of the prerr flag are described below. (a) set conditions (prerr = 1) (i) when a write operation to the s pecial register takes place without write operation being performed to the prcmd register (when step <4> is performed without performing step <3> as described in 3.4.7 (1) setting data to special registers ). (ii) when a write operation (including bit manipulation instruction) to an on-chip peripheral i/o register other than a special register is performed follo wing write to the prcmd register (when <4> in 3.4.7 (1) setting data to special registers is not a special register). remark regarding the special registers other than the wdtm register (pcc and psc registers), even if on-chip peripheral i/o register read (except bit ma nipulation instruction) (internal ram access, etc.) is performed in between wr ite to the prcmd register and wr ite to a special register, the prerr flag is not set and setting data can be written to the special register. (b) clear conditions (prerr = 0) (i) when 0 is written to the prerr flag (ii) when system reset is performed cautions 1. if 0 is written to the prerr bit of the sys register that is not a special register immediately following write to the prcmd re gister, the prerr bi t becomes 0 (write priority). 2. if data is written to the prcmd register that is not a special register immediately following write to the prcmd regist er, the prerr bit becomes 1. .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 85 3.4.8 cautions (1) wait when accessing register be sure to set the following register before using the v850es/kg1+. ? system wait control register (vswc) after setting the vswc register, set t he other registers as required. when using an external bus, set the vswc register and then set the various pins to the control mode by setting the port-related registers. (a) system wait control register (vswc) the vswc register controls the bus access wait ti me for the on-chip perip heral i/o registers. access to the on-chip peripheral i/o register lasts 3 clocks (during no wait), but in the v850es/kg1+, waits are required according to the internal system clock frequency. set the va lues shown below to the vswc register according to the internal system clock frequency that is used. this register can be read or written in 8-bit units (address: fffff06eh, after reset: 77h). operation conditions internal system clock frequency (f clk ) vswc register setting 32 khz f clk < 16.6 mhz 00h regc = v dd = 5 v 10%, in pll mode (f x = 2 to 5 mhz) 16.6 mhz f clk 20 mhz 01h regc = v dd = 4.0 to 5.5 v 32 khz f cpu < 16 mhz 00h regc = capacity, v dd = 4.0 to 5.5 v 32 khz f clk < 8 mhz 00h regc = v dd = 2.7 to 4.0 v 32 khz f clk 8 mhz 00h (b) access to special on-chip peripheral i/o register this product has two types of internal system buses. one type is for the cpu bus and the ot her is for the peripheral bus to interface with low-speed peripheral hardware. since the cpu bus clock and peripheral bus clock are asynchronous, if a conflict occurs during access between the cpu and peripheral hardware, illegal data may be passed unexpectedly. therefore, when accessing peripheral hardware that may cause a conf lict, the number of access cycles is changed so that the data is received/passed correctly in the cpu. as a result, the cpu does not shift to the next instruction processing and enters t he wait status. when this wait stat us occurs, the number of execution clocks of the instruction is increased by the number of wait clocks. note this with caution when performing real-time processing. when accessing a special on-chip peripheral i/o regist er, additional waits may be required further to the waits set by the vswc register. the access conditions at that time and the method to calculate the number of waits to be inserted (number of cpu clocks) are shown below. .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 86 peripheral function register name access k wdtm1 write 1 to 5 watchdog timer 1 (wdt1) {(1/f x ) 2/((2 + m)/f cpu )} + 1 f x : main clock oscillation frequency watchdog timer 2 (wdt2) wdtm2 write 3 (fixed) tp0ccr0, tp0ccr1, tp0cnt read 1 {(1/f xx )/((2 + m)/f cpu )} + 1 tp0ccr0, tp0ccr1 write 0 to 2 16-bit timer/event counter p0 (tmp0) {(1/f xx ) 5/((2 + m)/f cpu )} a wait occurs when performing co ntinuous write to same register 16-bit timer/event counters 00 to 03 (tm00 to tm03) tmc00 to tmc03 read-modify-write 1 (fixed) a wait occurs during write csia0b0 to csia0bf, csia1b0 to csia1bf write note 1 0 to 18 (when performing continuous write via write instruction) {(1/f scka ) 5 ? (4 + m)/f cpu )}/{((2 + m)/f cpu )} however, 1 wait if f cpu = f xx if the csisn.cksan1 and csisn.cksan0 bits are 00. f scka : csia selection clock frequency csia0b0 to csia0bf, csia1b0 to csia1bf write note 1 0 to 20 (when conflict occurs between write instruction and write via receive operation) clocked serial interfaces 0 and 1 with automatic transmit/receive function (csia0, csia1) {((1/f scka ) 5)/((2 + m)/f cpu )} f scka : csia selection clock frequency i 2 c0 note 2 iics0 read 1 (fixed) asynchronous serial interfaces 0 to 2 (uart0 to uart2) asis0 to asis2 read 1 (fixed) real-time output function 0 (rto0) rtbl0, rtbh0 write (when rtpc0.rtpoe0 bit = 0) 1 adm, ads, pfm, pft write 1 to 2 adcr, adcrh read 1 to 2 a/d converter {(1/f xx ) 2/[(2 + m)/f cpu ]} + 1 number of waits to be added = (2 + m) k [clocks] .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 87 notes 1. if fetched from the internal ram, t he number of waits is as shown above. if fetched from the external memory, the num ber of waits may be fewe r than the number shown above. the effect of the external memory access cycle differs depending on the wait settings, etc. however, the number of waits above is the maximum value. 2. i 2 c0 is available only in the pd703313y, 70f3311y, and 70f3313y. caution when the cpu operates on the subclock and no clock is input to the x1 pin, do not access a register in which a wait occurs using an acc ess method that causes a wait . if a wait occurs, it can only be released by a reset. remarks 1. in the calculation for the number of waits: f cpu : cpu clock frequency m: set value of bits 2 to 0 of the vswc register f clk : internal system clock when f clk < 16.6 mhz: m = 0 when f clk 16.6 mhz: m = 1 2. n = 0, 1 the digits below the decimal poi nt are truncated if less than (1/ f cpu )/(2 + m) or rounded up if larger than (1/ f cpu )/(2 + m) when multiplied by (1/ f cpu ). .com .com .com .com 4 .com u datasheet
chapter 3 cpu functions preliminary user?s manual u16894ej1v0ud 88 (2) restriction on conflict between sld instruction and interrupt request (a) description if a conflict occurs between the dec ode operation of an instruction in <2> immediately before the sld instruction following an instruction in <1> and an interrupt request before the instruction in <1> is complete, the execution result of t he instruction in <1> may not be stored in a register. instruction <1> ? ld instruction: ld.b, ld.h, ld.w, ld.bu, ld.hu ? sld instruction: sld.b, sld.h, sld.w, sld.bu, sld.hu ? multiplication instruction: mul, mulh, mulhi, mulu instruction <2> mov reg1, reg2 satadd reg1, reg2 and reg1, reg2 add reg1, reg2 mulh reg1, reg2 not reg1, reg2 satadd imm5, reg2 tst reg1, reg2 add imm5, reg2 shr imm5, reg2 satsubr reg1, reg2 or reg1, reg2 subr reg1, reg2 cmp reg1, reg2 sar imm5, reg2 satsub reg1, reg2 xor reg1, reg2 sub reg1, reg2 cmp imm5, reg2 shl imm5, reg2 ld.w [r11], r10 if the decode operation of the mo v instruction immediately before the sld instruction and an interrupt request conflict before exec ution of the ld instruction is complete, the executi on result of instruction may not be stored in a register. mov r10, r28 sld.w 0x28, r10 (b) countermeasure when executing the sld instruction immediately afte r instruction , avoid the above operation using either of the following methods. ? insert a nop instruction immediat ely before the sld instruction. ? do not use the same register as the sld instructi on destination register in the above instruction executed immediately befor e the sld instruction. ? ? ? .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 89 chapter 4 port functions 4.1 features { input-only ports: 8 pins { i/o ports: 76 pins ? ? { input/output can be specified in 1-bit units 4.2 basic port configuration the v850es/kg1+ incorporates a total of 84 i/o port pins c onsisting of ports 0, 1, 3 to 5, 7, 9, cm, cs, ct, dh, and dl (including 8 input-only port pins). the port configuration is shown below. p00 p06 port 0 p90 p915 port 9 pcm0 pcm3 port cm pcs0 pcs1 port cs pct0 pct1 pct4 pct6 port ct pdh0 pdh5 port dh pdl0 pdl15 port dl p30 p39 port 3 p40 p42 port 4 p50 p55 port 5 p70 p77 port 7 p10 p11 port 1 table 4-1. pin i/o buffer po wer supplies of v850es/kg1+ power supply corresponding pins av ref0 port 7 av ref1 port 1 bv dd ports cm, cs, ct, dh, dl ev dd reset, ports 0, 3 to 5, 9 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 90 4.3 port configuration table 4-2. port configuration item configuration control registers port n register (pn: n = 0, 1, 3 to 5, 7, 9, cm, cs, ct, dl, dh) port n mode register (pmn: n = 0, 1, 3 to 5, 9, cm, cs, ct, dl, dh) port n mode control register (pmcn: n = 0, 3 to 5, 9, cm, cs, ct, dl, dh) port n function control register (pfcn: n = 3, 5, 9) port n function register (pfn: n = 3 to 5, 9) port 3 function control expansion register (pfce3) pull-up resistor option register (pun: n = 0, 1, 3 to 5, 9, cm, cs, ct, dl, dh) ports input only: 8 i/o: 76 pull-up resistors software control: 72 (1) port n register (pn) data i/o with external devices is performed by writing to and reading from the pn regist er. the pn register is configured of a port latch that re tains the output data and a circ uit that reads the pin status. each bit of the pn register corresponds to one pin of port n and can be read or written in 1-bit units. pn7 0 is output 1 is output pnm 0 1 control of output data (in output mode) pn6 pn5 pn4 pn3 pn2 pn1 pn0 0 1 2 3 7 5 6 7 pn after reset: 00h note (output latch) r/w note input-only port pins are undefined. writing to and reading from the pn register is executed as follows independent of the se tting of the pmcn register. table 4-3. reading to/writing from pn register setting of pmn register writing to pn register reading from pn register output mode (pmnm bit = 0) write to the output latch note . in the port mode (pmcnm bit = 0), the contents of the output latch are output from the pin. the value of the output latch is read. input mode (pmnm bit = 1) write to the output latch. the status of the pin is not affected note . the pin status is read. note the value written to the output latch is retained until a value is next written to the output latch. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 91 (2) port n mode register (pmn) pmn specifies the input m ode/output mode of the port. each bit of the pmn register corresponds to one pin of port n and can be specified in 1-bit units. pmn7 output mode input mode pmnm 0 1 control of i/o mode pmn6 pmn5 pmn4 pmn3 pmn2 pmn1 pmn0 pmn after reset: ffh r/w (3) port n mode control register (pmcn) pmcn specifies the port mode/alternate function. each bit of the pmcn register corresponds to one pin of port n and can be specified in 1-bit units. port mode alternate function mode pmcnm 0 1 specification of operation mode pmcn7 pmcn6 pmcn5 pmcn4 pmcn3 pmcn2 pmcn1 pmcn0 pmcn after reset: 00h r/w (4) port n function control register (pfcn) pfcn is a register that specifies the alternate function to be us ed when one pin has two or more alternate functions. each bit of the pfcn register corresponds to one pin of port n and can be specified in 1-bit units. pfcn7 pfcn6 pfcn5 pfcn4 pfcn3 pfcn2 pfcn1 pfcn0 pfcn after reset: 00h r/w alternate function 1 alternate function 2 pfcnm 0 1 specification of alternate function .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 92 (5) port n function control expansion register (pfcen) pfcen is a register that specifies t he alternate function to be used when one pin has three or more alternate functions. each bit of the pfcen register corresponds to one pin of port n and can be specified in 1-bit units. pfcn7 pfcn6 pfcn5 pfcn4 pfcn3 pfcn2 pfcn1 pfcn0 pfcen7 pfcen6 pfcen5 pfcen4 pfcen3 pfcen2 pfcen1 pfcen0 after reset: 00h r/w pfcen pfcn alternate function 1 alternate function 2 alternate function 3 alternate function 4 pfcenm 0 0 1 1 specification of alternate function pfcnm 0 1 0 1 (6) port n function register (pfn) pfn is a register that specifies normal output/n-ch open-drain output. each bit of the pfn register corresponds to one pin of port n and can be specified in 1-bit units. pfn7 pfn6 pfn5 pfn4 pfn3 pfn2 pfn1 pfn0 normal output (cmos output) n-ch open-drain output pfnm note 0 1 control of normal output/n-ch open-drain output pfn after reset: 00h r/w note the pfnm bit is valid only when the pmn.pmnm bit is 0 (output mode) regardl ess of the setting of the pmcn register. when the pmnm bit is 1 (input mode) , the set value in the pfn register is invalid. example <1> when the value of t he pfn register is valid pfnm bit = 1 ? n-ch open-drain output is specified. pmnm bit = 0 ? output mode is specified. pmcnm bit = 0 or 1 <2> when the value of the pfn register is invalid pfnm bit = 0 ? n-ch open-drain output is specified. pmnm bit = 1 ? input mode is specified. pmcnm bit = 0 or 1 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 93 (7) pull-up resistor option register (pun) pun is a register that specifies the c onnection of an on-chip pull-up resistor. each bit of the pun register corresponds to one pin of port n and can be specified in 1-bit units. pun7 pun6 pun5 pun4 pun3 pun2 pun1 pun0 pun after reset: 00h r/w not connected connected punm 0 1 control of on-chip pull-up resistor connection .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 94 (8) port settings set the ports as follows. figure 4-1. register settings and pin functions pmcn register output mode input mode pmn register ?0? ?1? ?0? ?1? ?0? ?1? (a) (b) (c) (d) alternate function (when two alternate functions are available) port mode alternate function 1 alternate function 2 pfcn register alternate function (when three or more alternate functions are available) alternate function 1 alternate function 2 alternate function 3 alternate function 4 pfcn register pfcen register pfcenm 0 1 0 1 0 0 1 1 (a) (b) (c) (d) pfcnm remark switch to the alternate functi on using the following procedure. <1> set the pfcn and pfcen registers. <2> set the pmcn register. <3> set the intrn or intfn register (t o specify an external interrupt pin). if the pmcn register is set first, an unintende d function may be set while the pfcn and pfcen registers are being set. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 95 4.3.1 port 0 port 0 is a 7-bit i/o port for which i/o se ttings can be controlled in 1-bit units. port 0 includes the following alternate functions. table 4-4. alternate-function pins of port 0 pin no. gc gf pin name alternate function i/o pull note 1 remark block type 6 8 p00 note 2 toh0 output d0-u 7 9 p01 toh1 output ? d0-u 17 19 p02 nmi input d1-suil 18 20 p03 intp0 input d1-suil 19 21 p04 intp1 input d1-suil 20 22 p05 intp2 input analog noise elimination d1-suil 21 23 p06 intp3 input yes analog/digital noise elimination d1-suil notes 1. software pull-up function 2. only the p00 pin outputs a low level after reset (other port pins are in input mode). therefore, the low-level output from the p00 pin after reset can be used as a dummy reset signal from the cpu. caution p02 to p06 have hysteresis characteristics when the alternate f unction is input, but not in the port mode. remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 96 (1) port 0 register (p0) 0 0 is output 1 is output p0n 0 1 control of output data (in output mode) (n = 0 to 6) p0 p06 p05 p04 p03 p02 p01 p00 after reset: 00h (output latch) r/w address: fffff400h (2) port 0 mode register (pm0) 1 output mode input mode pm0n 0 1 control of i/o mode (n = 0 to 6) pm0 pm06 pm05 pm04 pm03 pm02 pm01 pm00 after reset: feh r/w address: fffff420h .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 97 (3) port 0 mode control register (pmc0) 0 pmc0 pmc06 pmc05 pmc04 pmc03 pmc02 pmc01 pmc00 i/o port intp3 input pmc06 0 1 specification of p06 pin operation mode i/o port intp2 input pmc05 0 1 specification of p05 pin operation mode i/o port intp1 input pmc04 0 1 specification of p04 pin operation mode i/o port intp0 input pmc03 0 1 specification of p03 pin operation mode i/o port nmi input pmc02 0 1 specification of p02 pin operation mode i/o port toh1 output pmc01 0 1 specification of p01 pin operation mode i/o port toh0 output pmc00 0 1 specification of p00 pin operation mode after reset: 00h r/w address: fffff440h (4) pull-up resistor option register 0 (pu0) 0 not connected connected pu0n 0 1 control of on-chip pull-up resistor connection (n = 0 to 6) pu0 pu06 pu05 pu04 pu03 pu02 pu01 pu00 after reset: 00h r/w address: fffffc40h .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 98 4.3.2 port 1 port 1 is a 2-bit i/o port for which i/o se ttings can be controlled in 1-bit units. port 1 includes the following alternate functions. table 4-5. alternate-function pins of port 1 pin no. gc gf pin name alternate function i/o pull note remark block type 3 5 p10 ano0 output c-ua 4 6 p11 ano1 output yes ? c-ua note software pull-up function remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) (1) port 1 register (p1) 0 0 is output 1 is output p1n 0 1 control of output data (in output mode) (n = 0, 1) p1 0 0 0 0 0 p11 p10 after reset: 00h (output latch) r/w address: fffff402h (2) port 1 mode register (pm1) caution when used as the ano0 and ano 1 pins, set pm1 = ffh all together. 1 output mode input mode pm1n 0 1 control of i/o mode (n = 0, 1) pm1 1 1 1 1 1 pm11 pm10 after reset: ffh r/w address: fffff422h .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 99 (3) pull-up resistor option register 1 (pu1) 0 not connected connected pu1n 0 1 control of on-chip pull-up resistor connection (n = 0, 1) pu1 0 0 0 0 0 pu11 pu10 after reset: 00h r/w address: fffffc42h .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 100 4.3.3 port 3 port 3 is a 10-bit i/o port for which i/o setti ngs can be controlled in 1-bit units. port 3 includes the following alternate functions. table 4-6. alternate-function pins of port 3 pin no. gc gf pin name alternate function i/o pull note 1 remark block type 25 27 p30 txd0/to02 output e00-u 26 28 p31 rxd0/intp7/to03 i/o e10-suihl 27 29 p32 asck0/adtrg/to01 i/o e10-sul 28 30 p33 ti000/to00/tip00/ top00 i/o g1010-sul 29 31 p34 ti001/to00/tip01/ top01 i/o g1010-sul 30 32 p35 ti010/to01 i/o yes ? e10-sul 31 33 p36 ? ? c-nmu 32 34 p37 ? ? c-nmu 35 37 p38 sda0 note 3 i/o d2-snmufh 36 38 p39 scl0 note 3 i/o no note 2 n-ch open-drain output d2-snmufh notes 1. software pull-up function 2. an on-chip pull-up resistor can be provided by a mask option (only in the pd703313, 703313y). 3. only in the pd703313y, 70f3311y, 70f3313y caution p31 to p35, p38, and p39 have hysteresis characteristics when th e alternate function is input, but not in the port mode. remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 101 (1) port 3 register (p3) 0 is output 1 is output p3n 0 1 control of output data (in output mode) (n = 0 to 9) p3 (p3h note ) after reset: 00h (output latch) r/w address: p3 fffff406h, p3l fffff406h, p3h fffff407h p37 p36 p35 p34 p33 p32 p31 p30 0 0 0 0 0 0 p39 p38 8 9 10 11 12 13 14 15 (p3l) note when reading from or writing to bits 8 to 15 of the p3 register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the p3h register. remark the p3 register can be read or written in 16-bit units. however, when the higher 8 bits and the lowe r 8 bits of the p3 register are used as the p3h register and as the p3l register, re spectively, this register can be read or written in 8-bit or 1-bit units. (2) port 3 mode register (pm3) pm37 output mode input mode pm3n 0 1 control of i/o mode (n = 0 to 9) pm36 pm35 pm34 pm33 pm32 pm31 pm30 after reset: ffffh r/w address: pm3 fffff426h, pm3l fffff426h, pm3h fffff427h 1 pm3 (pm3h note ) 1 1 1 1 1 pm39 pm38 8 9 10 11 12 13 14 15 (pm3l) note when reading from or writing to bits 8 to 15 of the pm3 register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the pm3h register. remark the pm3 register can be read or written in 16-bit units. when the higher 8 bits and the lower 8 bits of the pm3 register are used as the pm3h register and as the pm3l register, respective ly, this register can be read or written in 8-bit or 1-bit units. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 102 (3) port 3 mode control register (pmc3) pmc3 (pmc3h note 1 ) i/o port scl0 i/o pmc39 0 1 specification of p39 pin operation mode i/o port sda0 i/o pmc38 0 1 specification of p38 pin operation mode i/o port ti010 input/to01 output pmc35 0 1 specification of p35 pin operation mode i/o port ti001 input/to00 output/tip01 input/top01 output pmc34 0 1 specification of p34 pin operation mode i/o port ti000 input/to00 output/tip00 input/top00 output pmc33 0 1 specification of p33 pin operation mode i/o port asck0 input/adtrg input/to01 output pmc32 0 1 specification of p32 pin operation mode i/o port rxd0 input/intp7 input/to03 output pmc31 0 1 specification of p31 pin operation mode i/o port txd0 output/to02 output pmc30 0 1 specification of p30 pin operation mode after reset: 0000h r/w address: pmc3 fffff446h, pmc3l fffff446h, pmc3h fffff447h 0 0 pmc35 pmc34 pmc33 pmc32 pmc31 pmc30 00 00 00 pmc39 note 2 pmc38 note 2 8 9 10 11 12 13 14 15 (pmc3l) notes 1. when reading from or writing to bits 8 to 15 of the pmc3 register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the pmc3h register. 2. valid only in the pd703313y, 70f3311y, 70f3313y. in all other products, set this bit to 0. remark the pmc3 register can be read or written in 16-bit units. when the higher 8 bits and the lower 8 bits of the pmc3 register are used as the pmc3h register and as the pmc3l register, respectively, this register can be read or written in 8-bit or 1-bit units. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 103 (4) port 3 function register h (pf3h) 0 when used as normal port (n-ch open-drain output) when used as alternate-function (n-ch open-drain output) pf3n 0 1 specification of normal port/alternate function (n = 8, 9) pf3h 0 0 0 0 0 pf39 pf38 after reset: 00h r/w address: fffffc67h caution when using p38 and p39 as n-ch open-drai n-output alternate-function pins, set in the following sequence. be sure to set the port latch to 1 before setting the pin to n-ch open-drain output. p3n bit = 1 pf3n bit = 1 pmc3n bit = 1 (5) port 3 function control register (pfc3) pfc3 after reset: 00h r/w address: fffff466h 0 0 pfc35 pfc34 pfc33 pfc32 pfc31 pfc30 remark for details of specification of alternate-function pins, refer to 4.3.3 (7) specifying alternate-function pins of port 3 . (6) port 3 function contro l expansion register (pfce3) pfce3 after reset: 00h r/w address: fffff706h 0 0 0 pfce34 pfce33 0 0 0 remark for details of specification of alternate-function pins, refer to 4.3.3 (7) specifying alternate-function pins of port 3 . .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 104 (7) specifying alternate-function pins of port 3 pfc35 specification of alter nate-function pin of p35 pin 0 ti010 input 1 to01 output pfce34 pfc34 specification of alte rnate-function pin of p34 pin 0 0 ti001 input 0 1 to00 output 1 0 tip01 input 1 1 top01 output pfce33 pfc33 specification of alte rnate-function pin of p33 pin 0 0 ti000 input 0 1 to00 output 1 0 tip00 input 1 1 top00 output pfc32 specification of alter nate-function pin of p32 pin 0 asck0/adtrg note 1 input 1 to01 output pfc31 specification of alter nate-function pin of p31 pin 0 rxd0/intp7 note 2 input 1 to03 output pfc30 specification of alter nate-function pin of p30 pin 0 txd0 output 1 to02 output notes 1. the asck0 and adtrg pins are alternate-function pins. when using the pin as the asck0 pin, disable the trigger input of the alternate-function adtrg pin (clear the ads.trg bit to 0 or set the ads.adtmd bit to 1). when using the pin as the adtrg pin, do not set the uart0 operation clock to external input (set the cksr0.tps03 to cksr0.tps00 bits to other than 1011). 2. the intp7 and rxd0 pins are alternate-function pi ns. when using the pin as the rxd0 pin, disable edge detection of the alternate-function intp7 pi n (clear the intf3.intf31 and intr3.intr31 bits to 0). when using the pin as the intp7 pin, stop the uart0 receive operation (c lear the asim0.rxe0 bit to 0). .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 105 (8) pull-up resistor option register 3 (pu3) 0 not connected connected pu3n 0 1 control of on-chip pull-up resistor connection (n = 0 to 5) pu3 0 pu35 pu34 pu33 pu32 pu31 pu30 after reset: 00h r/w address: fffffc46h caution an on-chip pull-up r esistor can be provided for p36 to p39 by a mask option (only in the pd703313, 703313y). .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 106 4.3.4 port 4 port 4 is a 3-bit i/o port for which i/o se ttings can be controll ed in 1-bit units. port 4 includes the following alternate functions. table 4-7. alternate-function pins of port 4 pin no. gc gf pin name alternate function i/o pull note remark block type 22 24 p40 si00/rxd2 input ? e11-sulh 23 25 p41 so00/txd2 output e00-uf 24 26 p42 sck00 i/o yes n-ch open-drain output can be selected. d2-sufl note software pull-up function caution p40 and p42 have hysteresis characteristics when th e alternate function is input, but not in the port mode. remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) (1) port 4 register (p4) 0 0 is output 1 is output p4n 0 1 control of output data (in output mode) (n = 0 to 2) p4 0 0 0 0 p42 p41 p40 after reset: 00h (output latch) r/w address: fffff408h (2) port 4 mode register (pm4) 1 output mode input mode pm4n 0 1 control of i/o mode (n = 0 to 2) pm4 1 1 1 1 pm42 pm41 pm40 after reset: ffh r/w address: fffff428h .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 107 (3) port 4 mode control register (pmc4) 0 pmc4 0 0 0 0 pmc42 pmc41 pmc40 i/o port sck00 i/o pmc42 0 1 specification of p42 pin operation mode i/o port so00 output/txd2 output pmc41 0 1 specification of p41 pin operation mode i/o port si00 input/rxd2 input pmc40 0 1 specification of p40 pin operation mode after reset: 00h r/w address: fffff448h (4) port 4 function control register (pfc4) 0 pfc4 0 0 0 0 0 pfc41 pfc40 so00 output txd2 output pfc41 0 1 specification of alternate-function pin of p41 pin specification of alternate-function pin of p40 pin si00 input rxd2 input pfc40 0 1 after reset: 00h r/w address: fffff468h .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 108 (5) port 4 function register (pf4) 0 normal output n-ch open-drain output pf4n 0 1 control of normal output/n-ch open-drain output (n = 1, 2) pf4 0 0 0 0 pf42 pf41 0 after reset: 00h r/w address: fffffc68h caution when using p41 and p42 as n-ch open- drain-output alternate-function pins, set in the following sequence. be sure to set the port latch to 1 before setting the pin to n-ch open-drain output. p4n bit = 1 pf4n bit = 1 pmc4n bit = 1 (6) pull-up resistor option register 4 (pu4) 0 not connected connected pu4n 0 1 control of on-chip pull-up resistor connection (n = 0 to 2) pu4 0 0 0 0 pu42 pu41 pu40 after reset: 00h r/w address: fffffc48h .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 109 4.3.5 port 5 port 5 is a 6-bit i/o port for which i/o se ttings can be controll ed in 1-bit units. port 5 includes the following alternate functions. table 4-8. alternate-function pins of port 5 pin no. gc gf pin name alternate function i/o pull note remark block type 37 39 p50 ti011/rtp00/kr0 i/o e10-sult 38 40 p51 ti50/rtp01/kr1 i/o e10-sult 39 41 p52 to50/rtp02/kr2 i/o e00-sut 40 42 p53 sia0/rtp03/kr3 i/o ? e10-sult 41 43 p54 soa0/rtp04/kr4 i/o e00-suft 42 44 p55 scka0/rtp05/kr5 i/o yes n-ch open-drain output can be selected. e20-suflt note software pull-up function remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) (1) port 5 register (p5) 0 is output 1 is output p5n 0 1 control of output data (in output mode) (n = 0 to 5) p5 after reset: 00h (output latch) r/w address: fffff40ah 0 0 p55 p54 p53 p52 p51 p50 (2) port 5 mode register (pm5) 1 output mode input mode pm5n 0 1 control of i/o mode (n = 0 to 5) 1 pm55 pm54 pm53 pm52 pm51 pm50 after reset: ffh r/w address: fffff42ah pm5 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 110 (3) port 5 mode control register (pmc5) i/o port/kr5 input scka0 i/o/rtp05 output pmc55 0 1 specification of p55 pin operation mode i/o port/kr4 input soa0 output/rtp04 output pmc54 0 1 specification of p54 pin operation mode 0 0 pmc55 pmc54 pmc53 pmc52 pmc51 pmc50 after reset: 00h r/w address: fffff44ah pmc5 i/o port/kr3 input sia0 input/rtp03 output pmc53 0 1 specification of p53 pin operation mode i/o port/kr2 input to50 output/rtp02 output pmc52 0 1 specification of p52 pin operation mode i/o port/kr1 input ti50 input/rtp01 output pmc51 0 1 specification of p51 pin operation mode i/o port/kr0 input ti011 input/rtp00 output pmc50 0 1 specification of p50 pin operation mode (4) port 5 function register 5 (pf5) 0 normal output n-ch open-drain output pf5n 0 1 control of normal output/n-ch open-drain output (n = 4, 5) pf5 0 pf55 pf54 0 0 0 0 after reset: 00h r/w address: fffffc6ah cautions 1. always set bits 0 to 3, 6, and 7 of the pf5 register to 0. 2. when using p54 and p55 as n-ch open-dr ain-output alternate-function pins, set in the following sequence. be sure to set the port latch to 1 before setting the pin to n-ch open-drain output. p5n bit = 1 pf5n bit = 1 pmc5n bit = 1 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 111 (5) port 5 function control register (pfc5) pfc5 scka0 i/o rtp05 output pfc55 0 1 specification of alternate-function pin of p55 pin sia0 input rtp03 output pfc53 0 1 specification of alternate-function pin of p53 pin soa0 output rtp04 output pfc54 0 1 specification of alternate-function pin of p54 pin after reset: 00h r/w address: fffff46ah 0 0 pfc55 pfc54 pfc53 pfc52 pfc51 pfc50 to50 output rtp02 output pfc52 0 1 specification of alternate-function pin of p52 pin ti50 input rtp01 output pfc51 0 1 specification of alternate-function pin of p51 pin ti011 input rtp00 output pfc50 0 1 specification of alternate-function pin of p50 pin (6) pull-up resistor option register 5 (pu5) 0 not connected connected pu5n 0 1 control of on-chip pull-up resistor connection (n = 0 to 5) 0 pu55 pu54 pu53 pu52 pu51 pu50 after reset: 00h r/w address: fffffc4ah pu5 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 112 4.3.6 port 7 port 7 is an 8-bit input-only port for which all the pins are fixed to input. port 7 includes the following alternate functions. table 4-9. alternate-function pins of port 7 pin no. gc gf pin name alternate function i/o pull note remark block type 100 2 p70 ani0 input a-a 99 1 p71 ani1 input a-a 98 100 p72 ani2 input a-a 97 99 p73 ani3 input a-a 96 98 p74 ani4 input a-a 95 97 p75 ani5 input a-a 94 96 p76 ani6 input a-a 93 95 p77 ani7 input no ? a-a note software pull-up function remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) (1) port 7 register (p7) input low level input high level p7n 0 1 input data read (n = 0 to 7) after reset: undefined r address: fffff40eh p77 p76 p75 p74 p73 p72 p71 p70 p7 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 113 4.3.7 port 9 port 9 is a 16-bit i/o port for which i/o setti ngs can be controlled in 1-bit units. port 9 includes the following alternate functions. table 4-10. alternate-function pins of port 9 pin no. gc gf pin name alternate function i/o pull note remark block type 43 45 p90 a0/txd1/kr6 i/o e00-sutz 44 46 p91 a1/rxd1/kr7 i/o e01-suhtz 45 47 p92 a2/ti020/to02 i/o e00-sutz 46 48 p93 a3/ti021 i/o e01-sulz 47 49 p94 a4/ti030/to03 i/o e00-sutz 48 50 p95 a5/ti031 i/o e01-sulz 49 51 p96 a6/ti51/to51 i/o e00-sutz 50 52 p97 a7/si01 i/o ? e01-suhtz 51 53 p98 a8/so01 output e00-ufz 52 54 p99 a9/sck01 i/o n-ch open-drain output can be specified. e02-suflz 53 55 p910 a10/sia1 i/o ? e01-sulz 54 56 p911 a11/soa1 output e00-ufz 55 57 p912 a12/scka1 i/o n-ch open-drain output can be specified. e02-suflz 56 58 p913 a13/intp4 i/o e01-suilz 57 59 p914 a14/intp5 i/o e01-suilz 58 60 p915 a15/intp6 i/o no analog noise elimination e01-suilz note software pull-up function caution p93, p95, p97, p99, p910, and p912 to p915 have hysteresis characteri stics when the alternate function is input, but not in the port mode. remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 114 (1) port 9 register (p9) 0 is output 1 is output p9n 0 1 control of output data (in output mode) (n = 0 to 15) after reset: 00h (output latch) r/w address: p9 fffff412h, p9l fffff412h, p9h fffff413h p915 p9 (p9h note ) p914 p913 p912 p911 p910 p99 p98 p97 p96 p95 p94 p93 p92 p91 p90 8 9 10 11 12 13 14 15 (p9l) note when reading from or writing to bits 8 to 15 of the p9 register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the p9h register. remark the p9 register can be read or written in 16-bit units. however, when the higher 8 bits and the lower 8 bits of the p9 register are used as the p9h register and as the p9l register, re spectively, these registers can be read or written in 8-bit or 1-bit units. (2) port 9 mode register (pm9) pm97 output mode input mode pm9n 0 1 control of i/o mode (n = 0 to 15) pm96 pm95 pm94 pm93 pm92 pm91 pm90 after reset: ffffh r/w address: pm9 fffff432h, pm9l fffff432h, pm9h fffff433h pm915 pm9 (pm9h note ) pm914 pm913 pm912 pm911 pm910 pm99 pm98 8 9 10 11 12 13 14 15 (pm9l) note when reading from or writing to bits 8 to 15 of the pm9 register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the pm9h register. remark the pm9 register can be read or written in 16-bit units. however, when the higher 8 bits and the lo wer 8 bits of the pm9 register are used as the pm9h register and as the pm9l register, re spectively, this register can be read or written in 8-bit or 1-bit units. (3) port 9 mode control register (pmc9) caution when using port 9 as the a0 to a15 pins, set the pmc9 register to ffffh in 16-bit units. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 115 (1/2) i/o port a15 output/intp6 input pmc915 0 1 specification of p915 pin operation mode pmc97 pmc96 pmc95 pmc94 pmc93 pmc92 pmc91 pmc90 after reset: 0000h r/w address: pmc9 fffff452h, pmc9l fffff452h, pmc9h fffff453h pmc915 pmc9 (pmc9h note ) pmc914 pmc913 pmc912 pmc911 pmc910 pmc99 pmc98 8 9 10 11 12 13 14 15 i/o port a14 output/intp5 input pmc914 0 1 specification of p914 pin operation mode i/o port a11 output/soa1 output pmc911 0 1 specification of p911 pin operation mode i/o port a10 output/sia1 input pmc910 0 1 specification of p910 pin operation mode i/o port a9 output/sck01 i/o pmc99 0 1 specification of p99 pin operation mode i/o port a13 output/intp4 input pmc913 0 1 specification of p913 pin operation mode i/o port a12 output/scka1 i/o pmc912 0 1 specification of p912 pin operation mode i/o port a8 output/so01 output pmc98 0 1 specification of p98 pin operation mode (pmc9l) note when reading from or writing to bits 8 to 15 of the pmc9 register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the pmc9h register. remark the pmc9 register can be read or written in 16-bit units. however, when the higher 8 bits and the lo wer 8 bits of the pmc9 register are used as the pmc9h register and as the pmc9l r egister, respectively, these registers can be read or written in 8-bit or 1-bit units. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 116 (2/2) i/o port a7 output/si01 input pmc97 0 1 specification of p97 pin operation mode i/o port/ti51 input a6 output/to51 output pmc96 0 1 specification of p96 pin operation mode i/o port a5 output/ti031 input pmc95 0 1 specification of p95 pin operation mode i/o port/ti030 input a4 output/to03 output pmc94 0 1 specification of p94 pin operation mode i/o port a3 output/ti021 input pmc93 0 1 specification of p93 pin operation mode i/o port/ti020 input a2 output/to02 output pmc92 0 1 specification of p92 pin operation mode i/o port/kr7 input a1 output/rxd1 input pmc91 0 1 specification of p91 pin operation mode i/o port/kr6 input a0 output/txd1 output pmc90 0 1 specification of p90 pin operation mode .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 117 (4) port 9 function register h (pf9h) 0 normal output n-ch open-drain output pf9n 0 1 control of normal output/n-ch open-drain output (n = 0, 1, 3, 4) pf9h 0 0 pf912 pf911 0 pf99 pf98 after reset: 00h r/w address: fffffc73h caution when using p98, p99, p911, and p912 as n-ch open-drain-output alternate- function pins, set in the following sequence. be sure to set the port latch to 1 be fore setting the pin to n-ch open-drain output. p9n bit = 1 pfc9n bit = 0/1 pf9n bit = 1 pmc9n bit = 1 (5) port 9 function control register (pfc9) caution when using port 9 as the a0 to a15 pins, set the pfc9 register to 0000h in 16-bit units. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 118 (1/2) pfc9 (pfc9h note ) a15 output intp6 input pfc915 0 1 specification of alternate-function pin of p915 pin a14 output intp5 input pfc914 0 1 specification of alternate-function pin of p914 pin a13 output intp4 input pfc913 0 1 specification of alternate-function pin of p913 pin a12 output scka1 i/o pfc912 0 1 specification of alternate-function pin of p912 pin after reset: 0000h r/w address: pfc9 fffff472h, pfc9l fffff472h, pfc9h fffff473h pfc97 pfc96 pfc95 pfc94 pfc93 pfc92 pfc91 pfc90 pfc915 pfc914 pfc913 pfc912 pfc911 pfc910 pfc99 pfc98 8 9 10 11 12 13 14 15 a11 output soa1 output pfc911 0 1 specification of alternate-function pin of p911 pin a10 output sia1 input pfc910 0 1 specification of alternate-function pin of p910 pin a9 output sck01 i/o pfc99 0 1 specification of alternate-function pin of p99 pin a8 output so01 output pfc98 0 1 specification of alternate-function pin of p98 pin (pfc9l) note when reading from or writing to bits 8 to 15 of the pfc9 register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the pfc9h register. remark the pfc9 register can be read or written in 16-bit units. however, when the higher 8 bits and the lo wer 8 bits of the pfc9 register are used as the pfc9h register and as t he pfc9l register, respective ly, these registers can be read or written in 8-bit or 1-bit units. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 119 (2/2) a7 output si01 input pfc97 0 1 specification of alternate-function pin of p97 pin a6 output to51 output pfc96 0 1 specification of alternate-function pin of p96 pin a5 output ti031 input pfc95 0 1 specification of alternate-function pin of p95 pin a4 output to03 output pfc94 0 1 specification of alternate-function pin of p94 pin a3 output ti021 input pfc93 0 1 specification of alternate-function pin of p93 pin a2 output to02 output pfc92 0 1 specification of alternate-function pin of p92 pin a1 output rxd1 input pfc91 0 1 specification of alternate-function pin of p91 pin a0 output txd1 output pfc90 0 1 specification of alternate-function pin of p90 pin .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 120 (6) pull-up resistor option register 9 (pu9) not connected connected pu9n 0 1 control of on-chip pull-up resistor connection (n = 0 to 15) pu9 (pu9h note ) after reset: 0000h r/w address: pu9 fffffc52h, pu9l fffffc52h, pu9h fffffc53h pu97 pu96 pu95 pu94 pu93 pu92 pu91 pu90 pu915 pu914 pu913 pu912 pu911 pu910 pu99 pu98 8 9 10 11 12 13 14 15 (pu9l) note when reading from or writing to bits 8 to 15 of the pu9 register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the pu9h register. remark the pu9 register can be read or written in 16-bit units. however, when the higher 8 bits and the lo wer 8 bits of the pu9 register are used as the pu9h register and as the pu9l register, respectively, these registers can be read or written in 8-bit or 1-bit units. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 121 4.3.8 port cm port cm is a 4-bit i/o port for which i/o se ttings can be controlled in 1-bit units. port cm includes the following alternate functions. table 4-11. alternate-function pins of port cm pin no. gc gf pin name alternate function i/o pull note remark block type 61 63 pcm0 wait input d1-uh 62 64 pcm1 clkout output d0-u 63 65 pcm2 hldak output d0-u 64 66 pcm3 hldrq input yes ? d1-uh note software pull-up function remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) (1) port cm register (pcm) 0 is output 1 is output pcmn 0 1 control of output data (in output mode) (n = 0 to 3) after reset: 00h (output latch) r/w address: fffff00ch 0 pcm 0 0 0 pcm3 pcm2 pcm1 pcm0 (2) port cm mode register (pmcm) output mode input mode pmcmn 0 1 control of i/o mode (n = 0 to 3) after reset: ffh r/w address: fffff02ch 1 pmcm 1 1 1 pmcm3 pmcm2 pmcm1 pmcm0 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 122 (3) port cm mode control register (pmccm) 0 pmccm 0 0 0 pmccm3 pmccm2 pmccm1 pmccm0 i/o port hldrq input pmccm3 0 1 specification of pcm3 pin operation mode i/o port hldak output pmccm2 0 1 specification of pcm2 pin operation mode i/o port clkout output pmccm1 0 1 specification of pcm1 pin operation mode i/o port wait input pmccm0 0 1 specification of pcm0 pin operation mode after reset: 00h r/w address: fffff04ch (4) pull-up resistor option register cm (pucm) not connected connected pucmn 0 1 control of on-chip pull-up resistor connection (n = 0 to 3) after reset: 00h r/w address: ffffff4ch 0 pucm 0 0 0 pucm3 pucm2 pucm1 pucm0 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 123 4.3.9 port cs port cs is a 2-bit i/o port for which i/o setti ngs can be controlled in 1-bit units. port cs includes the following alternate functions. table 4-12. alternate-function pins of port cs pin no. gc gf pin name alternate function i/o pull note remark block type 59 61 pcs0 cs0 output d0-uz 60 62 pcs1 cs1 output yes ? d0-uz note software pull-up function remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) (1) port cs register (pcs) 0 is output 1 is output pcsn 0 1 control of output data (in output mode) (n = 0, 1) after reset: 00h (output latch) r/w address: fffff008h 0 pcs 0 0 0 0 0 pcs1 pcs0 (2) port cs mode register (pmcs) 0 output mode input mode pmcsn 0 1 control of i/o mode (n = 0, 1) pmcs 0 0 0 0 0 pmcs1 pmcs0 after reset: ffh r/w address: fffff028h .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 124 (3) port cs mode control register (pmccs) 0 i/o port csn output pmccsn 0 1 specification of pcsn pin operation mode (n = 0, 1) pmccs 0 0 0 0 0 pmccs1 pmccs0 after reset: 00h r/w address: fffff048h (4) pull-up resistor option register cs (pucs) 0 not connected connected pucsn 0 1 control of on-chip pull-up resistor connection (n = 0, 1) pucs 0 0 0 0 0 pucs1 pucs0 after reset: 00h r/w address: ffffff48h .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 125 4.3.10 port ct port ct is a 4-bit i/o port for which i/o se ttings can be controlled in 1-bit units. port ct includes the following alternate functions. table 4-13. alternate-function pins of port ct pin no. gc gf pin name alternate function i/o pull note remark block type 65 67 pct0 wr0 output d0-uz 66 68 pct1 wr1 output d0-uz 67 69 pct4 rd output d0-uz 68 70 pct6 astb output yes ? d0-uz note software pull-up function remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) (1) port ct register (pct) 0 0 is output 1 is output pctn 0 1 control of output data (in output mode) (n = 0, 1, 4, 6) pct pct6 0 pct4 0 0 pct1 pct0 after reset: 00h (output latch) r/w address: fffff00ah (2) port ct mode register (pmct) 0 output mode input mode pmctn 0 1 control of i/o mode (n = 0, 1, 4, 6) pmct pmct6 0 pmct4 0 0 pmct1 pmct0 after reset: ffh r/w address: fffff02ah .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 126 (3) port ct mode control register (pmcct) 0 pmcct pmcct6 0 pmcct4 0 0 pmcct1 pmcct0 i/o port astb output pmcct6 0 1 specification of pct6 pin operation mode i/o port rd output pmcct4 0 1 specification of pct4 pin operation mode i/o port wr1 output pmcct1 0 1 specification of pct1 pin operation mode i/o port wr0 output pmcct0 0 1 specification of pct0 pin operation mode after reset: 00h r/w address: fffff04ah (4) pull-up resistor option register ct (puct) 0 not connected connected puctn 0 1 control of on-chip pull-up resistor connection (n = 0, 1, 4, 6) puct puct6 0 puct4 0 0 puct1 puct0 after reset: 00h r/w address: ffffff4ah .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 127 4.3.11 port dh port dh is a 6-bit i/o port for which i/o setti ngs can be controlled in 1-bit units. port dh includes the following alternate functions. table 4-14. alternate-function pins of port dh pin no. gc gf pin name alternate function i/o pull note remark block type 87 89 pdh0 a16 output d0-uz 88 90 pdh1 a17 output d0-uz 89 91 pdh2 a18 output d0-uz 90 92 pdh3 a19 output d0-uz 91 93 pdh4 a20 output d0-uz 92 94 pdh5 a21 output yes ? d0-uz note software pull-up function remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) (1) port dh register (pdh) 0 is output 1 is output pdhn 0 1 control of output data (in output mode) (n = 0 to 5) pdh after reset: 00h (output latch) r/w address: fffff006h 0 0 pdh5 pdh4 pdh3 pdh2 pdh1 pdh0 (2) port dh mode register (pmdh) 1 output mode input mode pmdhn 0 1 control of i/o mode (n = 0 to 5) 1 pmdh5 pmdh4 pmdh3 pmdh2 pmdh1 pmdh0 after reset: ffh r/w address: fffff026h pmdh .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 128 (3) port dh mode control register (pmcdh) i/o port am output (address bus output) (m = 16 to 21) pmcdhn 0 1 specification of pdhn pin operation mode (n = 0 to 5) 0 0 pmcdh5 pmcdh4 pmcdh3 pmcdh2 pmcdh1 pmcdh0 after reset: 00h r/w address: fffff046h pmcdh caution when specifying the por t/alternate function for each bi t, pay careful attention to the operation of the alternate functions. (4) pull-up resistor option register dh (pudh) not connected connected pudhn 0 1 control of on-chip pull-up resistor connection (n = 0 to 5) 0 0 pudh5 pudh4 pudh3 pudh2 pudh1 pudh0 after reset: 00h r/w address: ffffff46h pudh .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 129 4.3.12 port dl port dl is a 16-bit i/o port for which i/o se ttings can be controlled in 1-bit units. port dl includes the following alternate functions. table 4-15. alternate-function pins of port dl pin no. gc gf pin name alternate function i/o pull note remark block type 71 73 pdl0 ad0 i/o d2-ulz 72 74 pdl1 ad1 i/o d2-ulz 73 75 pdl2 ad2 i/o d2-ulz 74 76 pdl3 ad3 i/o d2-ulz 75 77 pdl4 ad4 i/o d2-ulz 76 78 pdl5 ad5 i/o d2-ulz 77 79 pdl6 ad6 i/o d2-ulz 78 80 pdl7 ad7 i/o d2-ulz 79 81 pdl8 ad8 i/o d2-ulz 80 82 pdl9 ad9 i/o d2-ulz 81 83 pdl10 ad10 i/o d2-ulz 82 84 pdl11 ad11 i/o d2-ulz 83 85 pdl12 ad12 i/o d2-ulz 84 86 pdl13 ad13 i/o d2-ulz 85 87 pdl14 ad14 i/o d2-ulz 86 88 pdl15 ad15 i/o yes ? d2-ulz note software pull-up function remark gc: 100-pin plastic lqfp (fine pitch) (14 14) gf: 100-pin plastic qfp (14 20) .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 130 (1) port dl register (pdl) pdl15 0 is output 1 is output pdln 0 1 control of output data (in output mode) (n = 0 to 15) pdl (pdlh note ) pdl14 pdl13 pdl12 pdl11 pdl10 pdl9 pdl8 after reset: 00h (output latch) r/w address: pdl fffff004h, pdll fffff004h, pdlh fffff005h pdl7 pdl6 pdl5 pdl4 pdl3 pdl2 pdl1 pdl0 8 9 10 11 12 13 14 15 (pdll) note when reading from or writing to bits 8 to 15 of the pdl register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the pdlh register. remark the pdl register can be read or written in 16-bit units. however, when the higher 8 bits and the lowe r 8 bits of the pdl register are used as the pdlh register and as the pdll register, respectively, these registers can be read or written in 8-bit or 1-bit units. (2) port dl mode register (pmdl) pmdl7 output mode input mode pmdln 0 1 control of i/o mode (n = 0 to 15) pmdl6 pmdl5 pmdl4 pmdl3 pmdl2 pmdl1 pmdl0 after reset: ffffh r/w address: pmdl fffff024h, pmdll fffff024h, pmdlh fffff025h pmdl15 pmdl (pmdlh note ) pmdl14 pmdl13 pmdl12 pmdl11 pmdl10 pmdl9 pmdl8 8 9 10 11 12 13 14 15 (pmdll) note when reading from or writing to bits 8 to 15 of the pmdl register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the pmdlh register. remark the pmdl register can be read or written in 16-bit units. however, when the higher 8 bits and the lowe r 8 bits of the pmdl register are used as the pmdlh register and as the pmdll r egister, respectively, these registers can be read or written in 8-bit or 1-bit units. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 131 (3) port dl mode control register (pmcdl) i/o port adn i/o (address/data bus i/o) pmcdln 0 1 specification of pdln pin operation mode (n = 0 to 15) pmcdl7 pmcdl6 pmcdl5 pmcdl4 pmcdl3 pmcdl2 pmcdl1 pmcdl0 after reset: 0000h r/w address: pmcdl fffff044h, pmcdll fffff044h, pmcdlh fffff045h pmcdl15 pmcdl (pmcdlh note ) pmcdl14 pmcdl13 pmcdl12 pmcdl11pmcdl10 pmcdl9 pmcdl8 8 9 10 11 12 13 14 15 (pmcdll) note when reading from or writing to bits 8 to 15 of the pmcdl register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the pmcdlh register. caution when specifying the por t/alternate function for each bi t, pay careful attention to the operation of the alternate functions. remark the pmcdl register can be read or written in 16-bit units. however, when the higher 8 bits and the lo wer 8 bits of the pmcdl register are used as the pmcdlh register and as the pmcdll register, respectively, these registers can be read or written in 8-bit or 1-bit units. (4) pull-up resistor option register dl (pudl) not connected connected pudln 0 1 control of on-chip pull-up resistor connection (n = 0 to 15) pudl7 pudl6 pudl5 pudl4 pudl3 pudl2 pudl1 pudl0 after reset: 0000h r/w address: pudl ffffff44h, pudll ffffff44h, pudlh ffffff45h pudl15 pudl (pudlh note ) pudl14 pudl13 pudl12 pudl11 pudl10 pudl9 pudl8 8 9 10 11 12 13 14 15 (pudll) note when reading from or writing to bits 8 to 15 of the pudl register in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the pudlh register. remark the pudl register can be read or written in 16-bit units. however, when the higher 8 bits and the lo wer 8 bits of the pudl register are used as the pudlh register and as the pudll r egister, respectively, these registers can be read or written in 8-bit or 1-bit units. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 132 4.4 block diagrams figure 4-2. block diagram of type a-a internal bus rd a/d input signal pmn p-ch n-ch figure 4-3. block diagram of type c-nmu rd address pmn wr pm pmmn wr port ev dd ev dd p-ch medium-voltage input buffer ev ss n-ch mask option output latch (pmn) internal bus selector selector .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 133 figure 4-4. block diagram of type c-ua wr pm rd address wr port pmn pmmn p-ch n-ch d/a output signal output latch (pmn) wr pu av ref1 pumn p-ch internal bus selector selector dam.dacen bit .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 134 figure 4-5. block diagram of type d0-u wr pmc rd address output signal of alternate-function 1 wr port pmn pmcmn wr pu pumn wr pm pmmn ev dd note p-ch output latch (pmn) internal bus selector selector selector note bv dd in the case of pcm1 and pcm2 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 135 figure 4-6. block diagram of type d0-uz wr pmc rd wr port pmn pmcmn wr pu pumn wr pm address pmmn output latch (pmn) bv dd p-ch internal bus selector selector selector output signal of alternate-function 1 output buffer off signal remark output buffer off signal: signal that is asserted in the idle or stop mode, or when the bus is held. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 136 figure 4-7. block diagram of type d1-suil wr pmc rd address input signal of alternate-function 1 wr port pmn note 2 pmcmn wr intf intfmn note 1 wr pu pumn wr pm pmmn detection of noise elimination edge wr intr intrmn note 1 ev dd p-ch output latch (pmn) internal bus selector selector notes 1. refer to 21.4 external interrupt request input pins (nmi, intp0 to intp7 ). 2. there are no hysteresis characteristics in the port mode. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 137 figure 4-8. block diagram of type d1-uh wr pmc rd wr port pmn pmcmn wr pu pumn wr pm pmmn ev dd note p-ch address output latch (pmn) internal bus selector selector input signal of alternate-function 1 note bv dd in the case of pcm0 and pcm3 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 138 figure 4-9. block diagram of type d2-snmufh wr pmc rd address output signal of alternate-function 1 input signal of alternate-function 1 wr port pmcmn wr pf pfmn wr pm pmmn pmn ev dd ev ss note mask option n-ch output latch (pmn) internal bus selector selector selector note there are no hysteresis characteristics in the port mode. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 139 figure 4-10. block diagram of type d2-sufl wr pmc rd note wr port pmn pmcmn wr pu pumn wr pm pmmn wr pf pfmn ev dd p-ch ev dd ev ss p-ch n-ch address output latch (pmn) internal bus selector selector selector input signal of alternate-function 1 output signal of alternate-function 1 output enable signal of alternate-function 1 note there are no hysteresis characteristics in the port mode. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 140 figure 4-11. block diagram of type d2-ulz wr pmc rd wr port pmn pmcmn wr pm pmmn wr pu pumn bv dd p-ch address output latch (pmn) internal bus selector selector selector output enable signal of alternate-function 1 output signal of alternate-function 1 input enable signal of alternate-function 1 input signal of alternate-function 1 output buffer off signal remark output buffer off signal: signal that is asserted in the idle or stop mode, or when the bus is held. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 141 figure 4-12. block diagram of type e00-suft wr pmc rd address alternate-function input signal in port mode output signal of alternate-function 2 wr port pmn pmcmn wr pfc pfcmn wr pu pumn wr pm pmmn wr pf pfmn ev dd p-ch ev dd ev ss p-ch n-ch output latch (pmn) internal bus selector selector selector selector output signal of alternate-function 1 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 142 figure 4-13. block diagram of type e00-sut wr pmc rd address alternate-function input signal in port mode output signal of alternate-function 2 output signal of alternate-function 1 wr port pmn pmcmn wr pu pumn wr pm pmmn wr pfc pfcmn ev dd p-ch output latch (pmn) internal bus selector selector selector selector .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 143 figure 4-14. block diagram of type e00-sutz wr pmc rd address alternate-function input signal in port mode output signal of alternate-function 2 output signal of alternate-function 1 output buffer off signal wr port pmn pmcmn wr pu pumn wr pm pmmn wr pfc pfcmn ev dd p-ch output latch (pmn) internal bus selector selector selector selector remark output buffer off signal: signal that is asserted in the idle or stop mode, or when the bus is held. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 144 figure 4-15. block diagram of type e00-u wr pmc rd wr port pmn pmcmn wr pu pumn wr pm pmmn wr pfc pfcmn ev dd p-ch address output latch (pmn) internal bus selector selector selector selector output signal of alternate-function 2 output signal of alternate-function 1 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 145 figure 4-16. block diag ram of type e00-uf wr pmc rd wr port pmn pmcmn wr pfc pfcmn wr pu pumn wr pm pmmn wr pf pfmn ev dd p-ch ev dd ev ss p-ch n-ch address output latch (pmn) internal bus selector selector selector selector output signal of alternate-function 2 output signal of alternate-function 1 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 146 figure 4-17. block diagram of type e00-ufz wr pmc rd address output signal of alternate-function 2 output signal of alternate-function 1 output buffer off signal wr port pmn pmcmn wr pfc pfcmn wr pu pumn wr pm pmmn wr pf pfmn ev dd p-ch ev dd ev ss p-ch n-ch output latch (pmn) internal bus selector selector selector selector remark output buffer off signal: signal that is asserted in the idle or stop mode, or when the bus is held. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 147 figure 4-18. block diagram of type e01-suhtz wr pmc rd address alternate-function input signal in port mode output signal of alternate-function 1 input signal of alternate-function 2 output buffer off signal wr port pmn pmcmn wr pu pumn wr pm pmmn wr pfc pfcmn ev dd p-ch output latch (pmn) internal bus selector selector selector remark output buffer off signal: signal that is asserted in the idle or stop mode, or when the bus is held. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 148 figure 4-19. block diagram of type e01-suilz wr pmc rd address output signal of alternate-function 1 wr port pmn pmcmn wr pfc pfcmn output buffer off signal wr pu pumn wr pm pmmn wr intf intfmn note 1 wr intr intrmn note 1 ev dd p-ch input signal of alternate-function 2 note 2 detection of noise elimination edge output latch (pmn) internal bus selector selector selector notes 1. refer to 21.4 external interrupt request input pins (nmi, intp0 to intp7) . 2. there are no hysteresis characteristics in the port mode. remark output buffer off signal: signal that is asserted in the idle or stop mode, or when the bus is held. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 149 figure 4-20. block diagram of type e01-sulz wr pmc rd address note output signal of alternate-function 1 input signal of alternate-function 2 output buffer off signal wr port pmn pmcmn wr pu pumn wr pm pmmn wr pfc pfcmn ev dd p-ch output latch (pmn) internal bus selector selector selector note there are no hysteresis characteristics in the port mode. remark output buffer off signal: signal that is asserted in the idle or stop mode, or when the bus is held. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 150 figure 4-21. block diagram of type e02-suflz wr pmc rd address output signal of alternate-function 1 input signal of alternate-function 2 output signal of alternate-function 2 wr port pmn note pmcmn wr pfc pfcmn wr pu pumn wr pm pmmn wr pf pfmn ev dd p-ch ev dd ev ss p-ch n-ch output latch (pmn) output enable signal of alternate-function 2 output buffer off signal internal bus selector selector selector selector note there are no hysteresis characteristics in the port mode. remark output buffer off signal: signal that is asserted in the idle or stop mode, or when the bus is held. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 151 figure 4-22. block diagram of type e10-suihl wr pmc rd wr port pmn note pmcmn wr pfc pfcmn wr pu pumn wr pm pmmn wr intf intfmn note wr intr intrmn note ev dd p-ch address output latch (pmn) internal bus selector selector selector output signal of alternate-function 2 input signal of alternate-function 1-2 input signal of alternate-function 1-1 detection of noise elimination edge note there are no hysteresis characteristics in the port mode. remark alternate-function 1-1: rxd0 pin alternate-function 1-2: intp7 pin .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 152 figure 4-23. block diagram of type e10-sul wr pmc rd address input signal of alternate-function 1 output signal of alternate-function 2 wr port pmn pmcmn wr pu pumn wr pm pmmn wr pfc pfcmn ev dd p-ch output latch (pmn) internal bus selector selector selector note note there are no hysteresis characteristics in the port mode. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 153 figure 4-24. block diagram of type e10-sult wr pmc rd address alternate-function input signal in port mode input signal of alternate-function 1 output signal of alternate-function 2 wr port pmn pmcmn wr pu pumn wr pm pmmn wr pfc pfcmn ev dd p-ch output latch (pmn) internal bus selector selector selector .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 154 figure 4-25. block diagram of type e11-sulh wr pmc rd wr port address pmn pmcmn wr pu pumn wr pm pmmn wr pfc pfcmn ev dd p-ch note output latch (pmn) internal bus selector selector input signal of alternate-function 1 input signal of alternate-function 2 note there are no hysteresis characteristics in the port mode. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 155 figure 4-26. block diagram of type e20-suflt wr pmc rd wr port pmn pmcmn wr pfc pfcmn wr pu pumn wr pm pmmn wr pf pfmn ev dd p-ch ev dd ev ss p-ch n-ch address output latch (pmn) internal bus selector selector selector selector output signal of alternate-function 2 output enable signal of alternate-function 1 output signal of alternate-function 1 input signal of alternate-function 1 alternate-function input signal in port mode .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 156 figure 4-27. block diagram of type g1010-sul p-ch wr pmc rd address note input signal of alternate-function 1 input signal of alternate-function 3 output signal of alternate-function 2 output signal of alternate-function 4 wr port pmn pmcmn wr pfce pfcemn wr pm pmmn wr pfc pfcmn wr pu pumn ev dd output latch (pmn) internal bus selector selector selector selector note there are no hysteresis characteristics in the port mode. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 157 4.5 port register setting when alternate function is used table 4-16 shows the port register settings when each port is used for an alternate function. when using a port pin as an alternate-functi on pin, refer to description of each pin. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 158 other bits (registers) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? pfcnx bit of pfcn register ? ? ? pfc03 = 0 ? ? ? ? ? pfc30 = 0 pfc30 = 1 note 1 , pfc31 = 0 note 1 , pfc31 = 0 pfc31 = 1 note 2 , pfc32 = 0 note 2 , pfc32 = 0 pfc32 = 1 pfcenx bit of pfcen register ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? pmcnx bit of pmcn register pmc00 = 1 pmc01 = 1 pmc02 = 1 pmc03 = 1 pmc04 = 1 pmc05 = 1 pmc06 = 1 ? ? pmc30 = 1 pmc30 = 1 pmc31 = 1 pmc31 = 1 pmc31 = 1 pmc32 = 1 pmc32 = 1 pmc32 = 1 pmnx bit of pmn register pm00 = setting not required pm01 = setting not required pm02 = setting not required pm03 = setting not required pm04 = setting not required pm05 = setting not required pm06 = setting not required pm10 = 1 pm11 = 1 pm30 = setting not required pm30 = setting not required pm31 = setting not required pm31 = setting not required pm31 = setting not required pm32 = setting not required pm32 = setting not required pm32 = setting not required pnx bit of pn register p00 = setting not required p01 = setting not required p02 = setting not required p03 = setting not required p04 = setting not required p05 = setting not required p06 = setting not required p10 = setting not required p11 = setting not required p30 = setting not required p30 = setting not required p31 = setting not required p31 = setting not required p31 = setting not required p32 = setting not required p32 = setting not required p32 = setting not required i/o output output input input input input input output output output output input input output input input output alternate function function name toh0 toh1 nmi intp0 intp1 intp2 intp3 ano0 ano1 txd0 to02 rxd0 intp7 to03 asck0 adtrg to01 table 4-16. settings when port pins are used for alternate functions (1/6) pin name p00 p01 p02 p03 p04 p05 p06 p10 p11 p30 p31 p32 notes 1. the intp7 and rxd0 pins are alternate-function pins. when usin g the pin as the rxd0 pin, disable edge detection of the altern ate-function intp7 pin (clear the intf3.intf31 and intr3.intr31 bits to 0). when using the pin as the intp7 pin, stop the uart 0 receive operation (clear the asim0.rxe0 bit to 0). 2. the asck0 and adtrg pins are alternate-function pins. when usi ng the pin as the asck0 pin, disa ble the trigger input of the a lternate-function adtrg pin (clear the ads.trg bit to 0 or set the ads.adtmd bit to 1) . when using the pin as the ad trg pin, do not set the uart0 oper ation clock to external input (set the cksr0.tps03 to cksr 0.tps00 bits to other than 1011). caution when using the p10 and p11 pins as an alternate function (ano0 and ano1 pins), set the pm1 register to ffh. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 159 other bits (registers) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? pfcnx bit of pfcn register pfc33 = 0 pfc33 = 1 pfc33 = 0 pfc33 = 1 pfc34 = 0 pfc34 = 1 pfc34 = 0 pfc34 = 1 pfc35 = 0 pfc35 = 1 ? ? pfc40 = 0 pfc40 = 1 pfc41 = 0 pfc41 = 1 ? pfcenx bit of pfcen register pfce33 = 0 pfce33 = 0 pfce33 = 1 pfce33 = 1 pfce34 = 0 pfce34 = 0 pfce34 = 1 pfce34 = 1 ? ? ? ? ? ? ? ? ? pmcnx bit of pmcn register pmc33 = 1 pmc33 = 1 pmc33 = 1 pmc33 = 1 pmc34 = 1 pmc34 = 1 pmc34 = 1 pmc34 = 1 pmc35 = 1 pmc35 = 1 pmc38 = 1 pmc39 = 1 pmc40 = 1 pmc40 = 1 pmc41 = 1 pmc41 = 1 pmc42 = 1 pmnx bit of pmn register pm33 = setting not required pm33 = setting not required pm33 = setting not required pm33 = setting not required pm34 = setting not required pm34 = setting not required pm34 = setting not required pm34 = setting not required pm35 = setting not required pm35 = setting not required pm38 = setting not required pm39 = setting not required pm40 = setting not required pm40 = setting not required pm41 = setting not required pm41 = setting not required pm42 = setting not required pnx bit of pn register p33 = setting not required p33 = setting not required p33 = setting not required p33 = setting not required p34 = setting not required p34 = setting not required p34 = setting not required p34 = setting not required p35 = setting not required p35 = setting not required p38 = setting not required p39 = setting not required p40 = setting not required p40 = setting not required p41 = setting not required p41 = setting not required p42 = setting not required i/o input output input output input output input output input output i/o i/o input input output output i/o alternate function function name ti000 to00 tip00 top00 ti001 to00 tip10 top10 ti010 to01 sda0 note scl0 note si00 rxd2 so00 txd2 table 4-16. settings when port pins are used for alternate functions (2/6) pin name p33 p34 p35 p38 p39 p40 p41 p42 note only in the .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 160 other bits (registers) ? ? krm0 (krm) = 1 ? ? krm1 (krm) = 1 ? ? krm2 (krm) = 1 ? ? krm3 (krm) = 1 pf54 (pf5) = don?t care pf54 (pf5) = 0 pf54 (pf5) = 0, krm4 (krm) = 1 pf55 (pf5) = don?t care pf55 (pf5) = 0 pf55 (pf5) = 0, krm5 (krm) = 1 ? ? ? ? ? ? ? ? pfcnx bit of pfcn register pfc50 = 0 pfc50 = 1 pfc50 = 0 pfc51 = 0 pfc51 = 1 pfc51 = 0 pfc52 = 0 pfc52 = 1 pfc52 = 0 pfc53 = 0 pfc53 = 1 pfc53 = 0 pfc54 = 0 pfc54 = 1 pfc54 = 0 pfc55 = 0 pfc55 = 1 pfc55 = 0 ? ? ? ? ? ? ? ? pmcnx bit of pmcn register pmc50 = 1 pmc50 = 1 pmc50 = 0 pmc51 = 1 pmc51 = 1 pmc51 = 0 pmc52 = 1 pmc52 = 1 pmc52 = 0 pmc53 = 1 pmc53 = 1 pmc53 = 0 pmc54 = 1 pmc54 = 1 pmc54 = 0 pmc55 = 1 pmc55 = 1 pmc55 = 0 ? ? ? ? ? ? ? ? pmnx bit of pmn register pm50 = setting not required pm50 = setting not required pm50 = 1 pm51 = setting not required pm51 = setting not required pm51 = 1 pm52 = setting not required pm52 = setting not required pm52 = 1 pm53 = setting not required pm53 = setting not required pm53 = 1 pm54 = setting not required pm54 = setting not required pm54 = 1 pm55 = setting not required pm55 = setting not required pm55 = 1 ? ? ? ? ? ? ? ? pnx bit of pn register p50 = setting not required p50 = setting not required p50 = setting not required p51 = setting not required p51 = setting not required p51 = setting not required p52 = setting not required p52 = setting not required p52 = setting not required p53 = setting not required p53 = setting not required p53 = setting not required p54 = setting not required p54 = setting not required p54 = setting not required p55 = setting not required p55 = setting not required p55 = setting not required p70 = setting not required p71 = setting not required p72 = setting not required p73 = setting not required p74 = setting not required p75 = setting not required p76 = setting not required p77 = setting not required i/o input output input input output input output output input input output input output output input i/o output input input input input input input input input input alternate function function name ti011 rtp00 kr0 ti50 rtp01 kr1 to50 rtp02 kr2 sia0 rtp03 kr3 soa0 rtp04 kr4 scka0 rtp05 kr5 ani0 ani1 ani2 ani3 ani4 ani5 ani6 ani7 table 4-16. settings when port pins are used for alternate functions (3/6) pin name p50 p51 p52 p53 p54 p55 p70 p71 p72 p73 p74 p75 p76 p77 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 161 other bits (registers) note ? krm6 (krm) = 1 note ? krm7 (krm) = 1 note ? ? note ? note ? ? note ? note ? ? note ? note , pf98 (pf9) = 0 pf98 (pf9) = don?t care note , pf98 (pf9) = 0 pf98 (pf9) = don?t care pfcnx bit of pfcn register pfc90 = 0 pfc90 = 1 pfc90 = 0 pfc91 = 0 pfc91 = 1 pfc91 = 0 pfc92 = 0 pfc92 = 0 pfc92 = 1 pfc93 = 0 pfc93 = 1 pfc94 = 0 pfc94 = 0 pfc94 = 1 pfc95 = 0 pfc95 = 1 pfc96 = 0 pfc96 = 0 pfc96 = 1 pfc97 = 0 pfc97 = 1 pfc98 = 0 pfc98 = 1 pfc99 = 0 pfc99 = 1 pmcnx bit of pmcn register pmc90 = 1 pmc90 = 1 pmc90 = 0 pmc91 = 1 pmc91 = 1 pmc91 = 0 pmc92 = 1 pmc92 = 0 pmc92 = 1 pmc93 = 1 pmc93 = 1 pmc94 = 1 pmc94 = 0 pmc94 = 1 pmc95 = 1 pmc95 = 1 pmc96 = 1 pmc96 = 0 pmc96 = 1 pmc97 = 1 pmc97 = 1 pmc98 = 1 pmc98 = 1 pmc99 = 1 pmc99 = 1 pmnx bit of pmn register pm90 = setting not required pm90 = setting not required pm90 = 1 pm91 = setting not required pm91 = setting not required pm91 = 1 pm92 = setting not required pm92 = 1 pm92 = setting not required pm93 = setting not required pm93 = setting not required pm94 = setting not required pm94 = 1 pm94 = setting not required pm95 = setting not required pm95 = setting not required pm96 = setting not required pm96 = 1 pm96 = setting not required pm97 = setting not required pm97 = setting not required pm98 = setting not required pm98 = setting not required pm99 = setting not required pm99 = setting not required pnx bit of pn register p90 = setting not required p90 = setting not required p90 = setting not required p91 = setting not required p91 = setting not required p91 = setting not required p92 = setting not required p92 = setting not required p92 = setting not required p93 = setting not required p93 = setting not required p94 = setting not required p94 = setting not required p94 = setting not required p95 = setting not required p95 = setting not required p96 = setting not required p96 = setting not required p96 = setting not required p97 = setting not required p97 = setting not required p98 = setting not required p98 = setting not required p99 = setting not required p99 = setting not required i/o output output input output input input output input output output input output input output output input output input output output input output output output i/o alternate function function name a0 txd1 kr6 a1 rxd1 kr7 a2 ti020 to02 a3 ti021 a4 ti030 to03 a5 ti031 a6 ti51 to51 a7 si01 a8 so01 a9 sck01 table 4-16. settings when port pins are used for alternate functions (4/6) pin name p90 p91 p92 p93 p94 p95 p96 p97 p98 p99 note when setting the a0 to a15 pins, set the pfc9 register to 0000h and the pm c9 register to ffffh in 16-bit units. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 162 other bits (registers) note ? note , pf911 (pf9) = 0 pf911 (pf9) = don?t care note , pf912 (pf9) = 0 pf912 (pf9) = don?t care note ? note ? note ? ? ? ? ? ? ? ? ? ? ? pfcnx bit of pfcn register pfc910 = 0 pfc910 = 1 pfc911 = 0 pfc911 = 1 pfc912 = 0 pfc912 = 1 pfc913 = 0 pfc913 = 1 pfc914 = 0 pfc914 = 1 pfc915 = 0 pfc915 = 1 ? ? ? ? ? ? ? ? ? ? pmcnx bit of pmcn register pmc910 = 1 pmc910 = 1 pmc911 = 1 pmc911 = 1 pmc912 = 1 pmc912 = 1 pmc913 = 1 pmc913 = 1 pmc914 = 1 pmc914 = 1 pmc915 = 1 pmc915 = 1 pmccm0 = 1 pmccm1 = 1 pmccm2 = 1 pmccm3 = 1 pmccs0 = 1 pmccs1 = 1 pmcct0 = 1 pmcct1 = 1 pmcct4 = 1 pmcct6 = 1 pmnx bit of pmn register pm910 = setting not required pm910 = setting not required pm911 = setting not required pm911 = setting not required pm912 = setting not required pm912 = setting not required pm913 = setting not required pm913 = setting not required pm914 = setting not required pm914 = setting not required pm915 = setting not required pm915 = setting not required pmcm0 = setting not required pmcm1 = setting not required pmcm2 = setting not required pmcm3 = setting not required pmcs0 = setting not required pmcs1 = setting not required pmct0 = setting not required pmct1 = setting not required pmct4 = setting not required pmct6 = setting not required pnx bit of pn register p910 = setting not required p910 = setting not required p911 = setting not required p911 = setting not required p912 = setting not required p912 = setting not required p913 = setting not required p913 = setting not required p914 = setting not required p914 = setting not required p915 = setting not required p915 = setting not required pcm0 = setting not required pcm1 = setting not required pcm2 = setting not required pcm3 = setting not required pcs0 = setting not required pcs1 = setting not required pct0 = setting not required pct1 = setting not required pct4 = setting not required pct6 = setting not required i/o output input output output output i/o output input output input output input input output output input output output output output output output alternate function function name a10 sia1 a11 soa1 a12 scka1 a13 intp4 a14 intp5 a15 intp6 wait clkout hldak hldrq cs0 cs1 wr0 wr1 rd astb table 4-16. settings when port pins are used for alternate functions (5/6) pin name p910 p911 p912 p913 p914 p915 pcm0 pcm1 pcm2 pcm3 pcs0 pcs1 pct0 pct1 pct4 pct6 note when setting the a0 to a15 pins, set the pfc9 register to 0000h and the pm c9 register to ffffh in 16-bit units. .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 163 other bits (registers) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? pfcnx bit of pfcn register ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? pmcnx bit of pmcn register pmcdh0 = 1 pmcdh1 = 1 pmcdh2 = 1 pmcdh3 = 1 pmcdh4 = 1 pmcdh5 = 1 pmcdl0 = 1 pmcdl1 = 1 pmcdl2 = 1 pmcdl3 = 1 pmcdl4 = 1 pmcdl5 = 1 pmcdl6 = 1 pmcdl7 = 1 pmcdl8 = 1 pmcdl9 = 1 pmcdl10 = 1 pmcdl11 = 1 pmcdl12 = 1 pmcdl13 = 1 pmcdl14 = 1 pmcdl15 = 1 pmnx bit of pmn register pmdh0 = setting not required pmdh1 = setting not required pmdh2 = setting not required pmdh3 = setting not required pmdh4 = setting not required pmdh5 = setting not required pmdl0 = setting not required pmdl1 = setting not required pmdl2 = setting not required pmdl3 = setting not required pmdl4 = setting not required pmdl5 = setting not required pmdl6 = setting not required pmdl7 = setting not required pmdl8 = setting not required pmdl9 = setting not required pmdl10 = setting not required pmdl11 = setting not required pmdl12 = setting not required pmdl13 = setting not required pmdl14 = setting not required pmdl15 = setting not required pnx bit of pn register pdh0 = setting not required pdh1 = setting not required pdh2 = setting not required pdh3 = setting not required pdh4 = setting not required pdh5 = setting not required pdl0 = setting not required pdl1 = setting not required pdl2 = setting not required pdl3 = setting not required pdl4 = setting not required pdl5 = setting not required pdl6 = setting not required pdl7 = setting not required pdl8 = setting not required pdl9 = setting not required pdl10 = setting not required pdl11 = setting not required pdl12 = setting not required pdl13 = setting not required pdl14 = setting not required pdl15 = setting not required i/o output output output output output output i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o alternate function function name a16 a17 a18 a19 a20 a21 ad0 ad1 ad2 ad3 ad4 ad5 ad6 ad7 ad8 ad9 ad10 ad11 ad12 ad13 ad14 ad15 table 4-16. settings when port pins are used for alternate functions (6/6) pin name pdh0 pdh1 pdh2 pdh3 pdh4 pdh5 pdl0 pdl1 pdl2 pdl3 pdl4 pdl5 pdl6 pdl7 pdl8 pdl9 pdl10 pdl11 pdl12 pdl13 pdl14 pdl15 .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 164 4.6 cautions 4.6.1 cautions on bit manipulation instruction for port n register (pn) when a 1-bit manipulation instruction is executed on a port that provides both input and output functions, the value of the output latch of an input port that is not subject to manipulation may be written in addition to the targeted bit. therefore, it is recommended to rewr ite the output latch when switching a port from input mode to output mode. when p90 is an output port, p91 to p97 are in put ports (all pin statuses are high level), and the value of the port latch is 00h, if the output of output port p90 is ch anged from low level to high level via a bit manipulation instruction, the value of the port latch is ffh. explanation: the targets of writ ing to and reading from the pn regi ster of a port whose pmnm bit is 1 are the output latch and pin status, respectively. a bit manipulation instruction is executed in the following order in the v850es/kg1+. <1> the pn register is read in 8-bit units. <2> the targeted one bit is manipulated. <3> the pn register is written in 8-bit units. in step <1>, the value of the out put latch (0) of p90, which is an output port, is read, while the pin statuses of p91 to p97, which ar e input ports, are read. if the pin statuses of p91 to p97 are high level at this time, the read value is feh. the value is changed to ffh by the manipulation in <2>. ffh is written to the output la tch by the manipulation in <3>. figure 4-28. bit manipu lation instruction (p90) low-level output bit manipulation instruction (set1 0, p9l[r0]) is executed for p90 bit. pin status: high level p90 p91 to p97 port 9l latch 00000000 low-level output pin status: high level p90 p91 to p97 port 9l latch 11111111 bit manipulation instruction for p90 bit <1> the p9l register is read in 8-bit units. ? ? .com .com .com .com 4 .com u datasheet
chapter 4 port functions preliminary user?s manual u16894ej1v0ud 165 4.6.2 hysteresis characteristics in port mode, the following ports do not have hysteresis characteristics. p02 to p06 p31 to p35, p38, p39 p40, p42 p93, p95, p97, p99, p910, p912 to p915 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 166 chapter 5 bus control function the v850es/kg1+ is provided with an ex ternal bus interface function by which external memories such as rom and ram, and i/o c an be connected. 5.1 features { output is selectable from a multiplex bus with a mini mum of 3 bus cycles and a separate bus with a minimum of 2 bus cycles { chip select function for up to 2 spaces { 8-bit/16-bit data bus selectable (for each ar ea selected by chip select function) { wait function ? ? { idle state function { bus hold function { the bus can be controlled using a different voltage from the operating voltage by setting bv dd .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 167 5.2 bus control pins the pins used to connect an external device are listed in the table below. table 5-1. bus control pins (when multiplex bus selected) bus control pin alternate-function pin i/o function ad0 to ad15 pdl0 to pdl15 i/o address/data bus a16 to a21 pdh0 to pdh5 output address bus wait pcm0 input external wait control clkout pcm1 output internal system clock output cs0, cs1 pcs0, pcs1 output chip select wr0, wr1 pct0, pct1 output write strobe signal rd pct4 output read strobe signal astb pct6 output address strobe signal hldrq pcm3 input hldak pcm2 output bus hold control table 5-2. bus control pins (when separate bus selected) bus control pin alternate-function pin i/o function ad0 to ad15 pdl0 to pdl15 i/o data bus a0 to a15 p90 to p915 output address bus a16 to a21 pdh0 to pdh5 output address bus wait pcm0 input external wait control clkout pcm1 output internal system clock output cs0, cs1 pcs0, pcs1 output chip select wr0, wr1 pct0, pct1 output write strobe signal rd pct4 output read strobe signal hldrq pcm3 input hldak pcm2 output bus hold control .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 168 5.2.1 pin status when intern al rom, internal ram, or on -chip peripheral i/o is accessed when the internal rom, internal ram, or on-chip peripheral i/o is accessed, the status of each pin is as follows. table 5-3. pin statuses when in ternal rom, internal ram, or on -chip peripheral i/o is accessed separate bus mode multiplex bus mode address bus (a21 to a0) undefined a ddress bus (a21 to a16) undefined data bus (ad15 to ad0) hi-z address/data bus (ad15 to ad0) undefined control signal inactive control signal inactive caution when a write access is performed to the inte rnal rom area, address, data, and control signals are activated in the same way as ac cess to the external memory area. 5.2.2 pin status in each operation mode for the pin status of the v850es/kg 1+ in each operation mode, refer to 2.2 pin status . .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 169 5.3 memory block function the 64 mb memory space is divided into chip select areas of (lower) 2 mb and 2 mb. the programmable wait function and bus cycle operati on mode for each of these chip select areas can be i ndependently controlled. figure 5-1. data memory map: physical address 3ffffffh 3fec000h 3febfffh 0400000h 03fffffh 0200000h 01fffffh 0000000h 01fffffh 0100000h 00fffffh 3ffd800h 3ffd7ffh 3fff000h 3ffefffh 3ffffffh 0000000h 3fec000h (80 kb) access-prohibited area internal rom area note 2 (1 mb) external memory area (1 mb) internal ram area (6 kb note 1 ) on-chip peripheral i/o area (4 kb) access-prohibited area external memory area (2 mb) (2 mb) cs0 cs1 notes 1. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 170 5.3.1 chip select control function of the 64 mb (linear) address space, the lower 4 mb ( 0000000h to 03fffffh) include tw o chip select control functions, cs0 and cs1. the areas that c an be selected by cs0 and cs1 are fixed. by using these chip select control func tions, the memory space can be used effect ively. the allocation of the chip select areas is shown in the table below. cs0 0000000h to 01fffffh (2 mb) cs1 0200000h to 03fffffh (2 mb) 5.4 external bus interface mode control function the v850es/kg1+ includes the following two external bus interface modes. ? multiplex bus mode ? separate bus mode these two modes can be selected by using the eximc register. (1) external bus interface mode control register (eximc) this register can be read or written in 8-bit or 1-bit units. after reset, eximc is cleared to 00h. 0 multiplex bus mode separate bus mode smsel 0 1 mode selection eximc 0 0 0 0 0 0 smsel after reset: 00h r/w address: ffffffbeh caution set the eximc register from the internal rom or internal ram area before external access. after setting the eximc register, be sure to set a nop instruction. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 171 5.5 bus access 5.5.1 number of clocks for access the following table shows the num ber of basic clocks required for accessing each resource. area (bus width) bus cycle type internal rom (32 bits) internal ram (32 bits) external memory (16 bits) on-chip peripheral i/o (16 bits) instruction fetch (normal access) 1 1 note 1 3 + n note 2 ? instruction fetch (branch) 2 2 note 1 3+ n note 2 ? operand data access 3 1 3 +n note 2 3 note 3 notes 1. if the access conflicts with a data access, the number of clock is increased by 1. 2. 2 + n clocks (n: number of wait states ) when the separate bus mode is selected. 3. this value varies depending on the setting of the vswc register. remark unit: clocks/access 5.5.2 bus size setting function the bus size of each external memory area selected by csn can be set to 8 bits or 16 bits by using the bsc register. the external memory area of the v850 es/kg1+ is selected by cs0 and cs1. (1) bus size configuration register (bsc) this register can be read or written in 16-bit units. after reset, bsc is set to 5555h. caution write to the bsc register after reset, an d then do not change the set values. also, do not access an external memory area until the initial settings of the bsc register are complete. after reset: 5555h r/w address: fffff066h 0 0 bsn0 0 1 8 bits 16 bits bsc 1 0/1 note 0 0 1 0/1 note 0 0 1 bs10 0 0 1 bs00 8 9 10 11 12 13 data bus width of csn space (n = 0, 1) 14 15 1 2 3 4 5 6 7 0 cs0 csn signal cs1 note changing the value does not affect the operation. caution be sure to set bi ts 14, 12, 10, and 8 to 1, and clear bits 15, 13, 11, 9, 7, 5, 3, and 1 to 0. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 172 5.5.3 access by bus size the v850es/kg1+ accesses the on-chip peripheral i/o and exte rnal memory in 8-bit, 16-bit, or 32-bit units. the bus size is as follows. ? ? .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 173 (2) byte access (8 bits) (a) 16-bit data bus width <1> access to even address (2n) <2> access to odd address (2n + 1) 7 0 7 0 byte data 15 8 external data bus 2n address 7 0 7 0 15 8 2n + 1 address byte data external data bus (b) 8-bit data bus width <1> access to even address (2n) <2> access to odd address (2n + 1) 7 0 7 0 2n address byte data external data bus 7 0 7 0 2n + 1 address byte data external data bus .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 174 (3) halfword access (16 bits) (a) with 16-bit data bus width <1> access to even address (2n) <2> access to odd address (2n + 1) first access second access 7 0 7 0 15 8 2n address 15 8 2n + 1 halfword data external data bus 7 0 7 0 15 8 15 8 7 0 7 0 15 8 15 8 2n + 2 2n address address 2n + 1 halfword data external data bus halfword data external data bus (b) 8-bit data bus width <1> access to even address (2n) <2> access to odd address (2n + 1) first access second access first access second access 7 0 7 0 15 8 address 7 0 7 0 15 8 2n + 1 address 2n halfword data external data bus halfword data external data bus 7 0 7 0 15 8 7 0 7 0 15 8 2n + 2 2n + 1 address address halfword data external data bus halfword data external data bus .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 175 (4) word access (32 bits) (a) 16-bit data bus width (1/2) <1> access to address (4n) first access second access 7 0 7 0 15 8 4n 15 8 4n + 1 23 16 31 24 7 0 7 0 15 8 4n + 2 15 8 4n + 3 23 16 31 24 word data external data bus address word data external data bus address <2> access to address (4n + 1) first access second access third access 7 0 7 0 15 8 15 8 4n + 1 23 16 31 24 7 0 7 0 15 8 4n + 2 15 8 4n + 3 23 16 31 24 7 0 7 0 15 8 4n + 4 15 8 23 16 31 24 address address address word data external data bus word data external data bus word data external data bus .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 176 (a) 16-bit data bus width (2/2) <3> access to address (4n + 2) first access second access 7 0 7 0 15 8 4n + 2 15 8 4n + 3 23 16 31 24 7 0 7 0 15 8 4n + 4 15 8 4n + 5 23 16 31 24 address address word data external data bus word data external data bus <4> access to address (4n + 3) first access second access third access 7 0 7 0 15 8 15 8 4n + 3 23 16 31 24 7 0 7 0 15 8 4n + 4 15 8 4n + 5 23 16 31 24 7 0 7 0 15 8 4n + 6 15 8 23 16 31 24 address address address word data external data bus word data external data bus word data external data bus .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 177 (b) 8-bit data bus width (1/2) <1> access to address (4n) first access second access third access fourth access 7 0 7 0 15 8 4n 23 16 31 24 7 0 7 0 4n + 1 15 8 23 16 31 24 7 0 7 0 4n + 2 15 8 23 16 31 24 7 0 7 0 4n + 3 15 8 23 16 31 24 word data external data bus address address address address word data external data bus word data external data bus word data external data bus <2> access to address (4n + 1) first access second access third access fourth access 7 0 7 0 15 8 4n + 1 23 16 31 24 7 0 7 0 4n + 2 15 8 23 16 31 24 7 0 7 0 4n + 3 15 8 23 16 31 24 7 0 7 0 4n + 4 15 8 23 16 31 24 address address address address word data external data bus word data external data bus word data external data bus word data external data bus .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 178 (b) 8-bit data bus width (2/2) <3> access to address (4n + 2) first access second access third access fourth access address address address address 7 0 7 0 15 8 4n + 2 23 16 31 24 7 0 7 0 4n + 3 15 8 23 16 31 24 7 0 7 0 4n + 4 15 8 23 16 31 24 7 0 7 0 4n + 5 15 8 23 16 31 24 word data external data bus word data external data bus word data external data bus word data external data bus <4> access to address (4n + 3) first access second access third access fourth access 7 0 7 0 15 8 4n + 3 23 16 31 24 7 0 7 0 4n + 4 15 8 23 16 31 24 7 0 7 0 4n + 5 15 8 23 16 31 24 7 0 7 0 4n + 6 15 8 23 16 31 24 address address address address word data external data bus word data external data bus word data external data bus word data external data bus .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 179 5.6 wait function 5.6.1 programmable wait function (1) data wait control register 0 (dwc0) to realize interfacing with a low-s peed memory or i/o, up to seven data wait states can be inserted in the bus cycle that is executed for each cs space. the number of wait states can be pr ogrammed by using the dw c0 register. immediately after system reset, 7 data wait states are inserted fo r all the chip select areas. the dwc0 register can be read or written in 16-bit units. after reset, dwc0 is set to 7777h. cautions 1. the internal rom and internal ram ar eas are not subject to programmable wait, and are always accessed without a wait state. the on-chip peripheral i/o area is also not subject to programmable wait, and only wait control from each peripheral function is performed. 2. write to the dwc0 register after reset, an d then do not change the set values. also, do not access an external memory area until the initial settings of the dwc0 register are complete. after reset: 7777h r/w address: fffff484h 0 0 dwn2 0 0 0 0 1 1 1 1 dwn1 0 0 1 1 0 0 1 1 dwn0 0 1 0 1 0 1 0 1 none 1 2 3 4 5 6 7 dwc0 0/1 note dw12 0/1 note dw11 0/1 note dw10 0 0 0/1 note dw02 0/1 note dw01 0/1 note dw00 8 9 10 11 12 13 number of wait states inserted in csn space (n = 0, 1) 14 15 1 2 3 4 5 6 7 0 cs0 csn signal cs1 note changing the value does not affect the operation. caution be sure to clear bi ts 15, 11, 7, and 3 to 0. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 180 5.6.2 external wait function to synchronize an extremely slow memory, i/o, or a synchronous system, any number of wait states can be inserted in the bus cycle by using the external wait pin (wait). access to each area of the internal rom, internal ram, a nd on-chip peripheral i/o is not subject to control by the external wait function, in the same ma nner as the programmable wait function. the wait signal can be input asynchronously to clkout, and is sampled at the falling edge of the clock in the t2 and tw states of the bus cycle in the multiplex bus mode. in the separate bus mode, it is sampled at the rising edge of the clock immediately after the t1 and tw states of the bus cycle. if the setu p/hold time of the sampling timing is not satisfied, a wait state is inserted in the next state, or not inserted at all. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 181 5.6.3 relationship between progr ammable wait and external wait wait cycles are inserted as the result of an or operation between the wait cycles specified by the set value of the programmable wait and t he wait cycles controlled by the wait pin. wait control programmable wait wait via wait pin for example, if the timing of the pr ogrammable wait and the wait pin signal is as illustrated below, three wait states will be inserted in the bus cycle. figure 5-3. example of inserting wait states (a) in separate bus mode t1 tw tw tw t2 clkout wait pin wait via wait pin programmable wait wait control remark the circles indicate the sampling timing. (b) in multiplex bus mode clkout t1 t2 tw tw tw t3 wait pin wait via wait pin programmable wait wait control remark the circles indicate the sampling timing. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 182 5.6.4 programmable address wait function address-setup or address-hold waits to be inserted in each bus cycle can be set by using the awc register. address wait insertion is set for each chip select area (cs0 and cs1). if an address setup wait is inserted, it seems that the high-clock period of t1 state is extended by 1 clock. if an address hold wait is inserted, it s eems that the low-clock period of t1 state is extended by 1 clock. (1) address wait cont rol register (awc) this register can be read or written in 16-bit units. after reset, awc is set to ffffh. cautions 1. the internal rom, internal ram, and on-chip peripher al i/o areas are not subject to address setup wait or ad dress hold wait insertion. 2. write the awc register after reset, and th en do not change the set values. also, do not access an external memory area until the in itial settings of the awc register are complete. after reset: ffffh r/w address: fffff488h 1 0/1 note ahwn 0 1 not inserted inserted awc 1 0/1 note 1 0/1 note 1 0/1 note 1 ahw1 1 asw1 1 ahw0 1 asw0 8 9 10 11 12 13 specifies insertion of address hold wait (n = 0, 1) 14 15 1 2 3 4 5 6 7 0 aswn 0 1 not inserted inserted specifies insertion of address setup wait (n = 0, 1) cs0 csn signal cs1 note changing the value does not affect the operation. caution be sure to set bits 15 to 8 to 1. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 183 5.7 idle state insertion function to facilitate interfacing with low-speed memories, one idle st ate (ti) can be inserted afte r the t3 state in the bus cycle that is executed for each space sele cted by csn in the multiplex address/data bus mode. in the separate bus mode, one idle state (ti) can be inserted a fter the t2 state. by inserting idle st ates, the data output float delay time of the memory can be secured during read access (an id le state cannot be inserted during write access). whether the idle state is to be inserted c an be programmed by using the bcc register. an idle state is inserted for all t he areas immediately after system reset. (1) bus cycle control register (bcc) this register can be read or written in 16-bit units. after reset, bcc is set to aaaah. cautions 1. the internal rom, in ternal ram, and on-chip peripheral i/o areas are not subject to idle state insertion. 2. write to the bcc register after reset, and th en do not change the set values. also, do not access an external memory area until the initial settings of the bcc register are complete. after reset: aaaah r/w address: fffff48ah 1 0/1 note bcn1 0 1 not inserted inserted bcc 0 0 1 0/1 note 0 0 1 bc11 0 0 1 bc01 0 0 8 9 10 11 12 13 specifies insertion of idle state (n = 0, 1) 14 15 1 2 3 4 5 6 7 0 cs0 csn signal cs1 note changing the value does not affect the operation. caution be sure to set bits 15, 13, 11 , and 9 to 1, and clear bits 14, 12, 10, 8, 6, 4, 2, and 0 to 0. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 184 5.8 bus hold function 5.8.1 functional outline the hldrq and hldak functions are valid if the pcm2 and pcm3 pins are set to their alternate functions. when the hldrq pin is asserted (low level), indicating th at another bus master has re quested bus mastership, the external address/data bus goes into a hi gh-impedance state and is released (bus ho ld status). if the request for the bus mastership is cleared and the hldrq pin is deasserted (high level), driving these pins is started again. during the bus hold period, execution of the program in the internal rom and internal ram is continued until a peripheral i/o register or the ex ternal memory is accessed. the bus hold status is indica ted by assertion (low level) of the hld ak pin. the bus hold function enables the configuration of mult i-processor type systems in which two or more bus masters exist. note that the bus hold request is not acknowledged during a multiple-access cycle initiated by the bus sizing function or a bit manipulation instruction. status data bus width access type timing in which bus hold request not acknowledged word access to even address between first and second access between first and second access word access to odd address between second and third access 16 bits halfword access to odd address between first and second access between first and second access between second and third access word access between third and fourth access cpu bus lock 8 bits halfword access between first and second access read-modify-write access of bit manipulation instruction ? ? .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 185 5.8.2 bus hold procedure the bus hold status transiti on procedure is shown below. <1> low-level input to hldrq pin acknowledged <2> all bus cycle start requests inhibited <3> end of current bus cycle <4> shift to bus idle status. <5> output low level from hldak pin <6> high-level input to hldrq pin acknowledged <7> output high level from hldak pin <8> bus cycle start request inhibition released <9> bus cycle starts normal status bus hold status normal status hldak (output) hldrq (input) <1> <2> <5> <3><4> <7><8><9> <6> 5.8.3 operation in power save mode because the internal system clock is stopped in the st op and idle modes, the bus hold status is not entered even if the hldrq pin is asserted. in the halt mode, the hldak pin is asserted as soon as the hldrq pin has been asserted, and the bus hold status is entered. when the hldrq pin is later deasserted, the hldak pi n is also deasserted, and the bus hold status is cleared. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 186 5.9 bus priority bus hold, instruction fetch (branch), instruction fetc h (successive), operand data access, and dma transfer are executed in the external bus cycle. bus hold has the highest priority, followed by dma trans fer, operand data access, instruction fetch (branch), and instruction fetch (successive). an instruction fetch may be inserted between the read access and write access in a read-modify-write access. if an instruction is executed for two or more accesses, an instruction fetch and bus hold are not inserted between accesses due to bus size limitations. table 5-4. bus priority priority external bus cycle bus master high bus hold external device dma transfer dmac operand data access cpu instruction fetch (branch) cpu low instruction fetch (successive) cpu .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 187 5.10 bus timing figure 5-4. multiplex bus read timi ng (bus size: 16 bits, 16-bit access) a1 a2 a3 d1 d2 a3 a2 a1 t1 t2 t3 t1 t2 tw tw t3 ti t1 programmable wait external wait idle state clkout a21 to a16 astb cs1, cs0 wait ad15 to ad0 rd 8-bit access ad15 to ad8 ad7 to ad0 odd address active hi-z even address hi-z active remark the broken lines indicate high impedance. figure 5-5. multiplex bus read timing (bus size: 8 bits) a1 a2 a3 d1 d2 a3 a2 a1 t1 t2 t3 t1 t2 tw tw t3 ti t1 programmable wait external wait idle state clkout a21 to a16, ad15 to ad8 astb cs1, cs0 wait ad7 to ad0 rd remark the broken lines indicate high impedance. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 188 figure 5-6. multiplex bus write timi ng (bus size: 16 bits, 16-bit access) a1 11 00 11 11 00 11 a2 a3 d1 d2 a3 a2 a1 t2 t3 t1 t1 t2 tw tw t3 t1 programmable wait external wait clkout a21 to a16 astb cs1, cs0 wait ad15 to ad0 wr1, wr0 wr1, wr0 01 10 8-bit access ad15 to ad8 ad7 to ad0 odd address active undefined even address undefined active figure 5-7. multiplex bus writ e timing (bus size: 8 bits) a1 11 10 11 11 10 11 a2 a3 d1 d2 a3 a2 a1 t2 t3 t1 t1 t2 tw tw t3 t1 programmable wait external wait clkout a21 to a16, ad15 to ad8 astb cs1, cs0 wait ad7 to ad0 wr1, wr0 .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 189 figure 5-8. multiplex bu s hold timing (bus size : 16 bits, 16-bit access) t1 a1 undefined a1 a2 t2 t3 ti note th th th th ti note t1 t2 t3 d1 clkout hldrq hldak a21 to a16 astb cs1, cs0 ad15 to ad0 rd undefined undefined undefined a2 d2 11 11 note this idle state (ti) does not de pend on the bcc register settings. remarks 1. refer to table 2-2 pin operation status in operation modes for the pin statuses in the bus hold mode. 2. the broken lines indicate high impedance. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 190 figure 5-9. separate bus read timi ng (bus size: 16 bits, 16-bit access) t1 a1 a2 a3 t2 t1 tw tw t2 t2 ti t1 d3 d2 programmable wait external wait idle state d1 clkout a21 to a0 cs1, cs0 wait ad15 to ad0 rd 8-bit access ad15 to ad8 ad7 to ad0 odd address active hi-z even address hi-z active remark the broken lines indicate high impedance. figure 5-10. separate bus r ead timing (bus size: 8 bits) t1 a1 a2 a3 t2 t1 tw tw t2 t2 ti t1 d3 d2 programmable wait external wait idle state d1 clkout a21 to a0 cs1, cs0 wait ad7 to ad0 rd remark the broken lines indicate high impedance. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 191 figure 5-11. separate bus write timi ng (bus size: 16 bits, 16-bit access) t1 a1 11 00 00 00 11 11 11 11 a2 a3 t2 t1 tw tw t2 t1 t2 d3 d2 programmable wait external wait d1 clkout a21 to a0 cs1, cs0 wait ad15 to ad0 wr1, wr0 wr1, wr0 01 10 8-bit access ad15 to ad8 ad7 to ad0 odd address active undefined even address undefined active remark the broken lines indicate high impedance. figure 5-12. separate bus writ e timing (bus size: 8 bits) t1 a1 a2 a3 t2 t1 tw tw t2 t1 t2 d3 d2 programmable wait external wait d1 clkout a21 to a0 cs1, cs0 wait ad7 to ad0 wr1, wr0 11 10 10 10 11 11 11 11 remark the broken lines indicate high impedance. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 192 figure 5-13. separate bus hold ti ming (bus size: 8 bits, write) clkout t1 t2 a1 d1 d2 undefined a2 undefined 11 11 10 d3 a3 t1 t2 th ti note ti note th th th t1 t2 hldrq hldak a21 to a0 ad7 to ad0 wr1, wr0 cs1, cs0 11 10 11 10 11 11 11 note this idle state (ti) does not de pend on the bcc register settings. remark the broken lines indicate high impedance. figure 5-14. address wait timing (separate bus read, bus size: 16 bits, 16-bit access) tasw t1 tahw t2 clkout astb a21 to a0 cs1, cs0 wait ad15 to ad0 rd d1 a1 t1 t2 clkout astb a21 to a0 cs1, cs0 wait ad15 to ad0 rd d1 a1 remarks 1. tasw (address setup wait): image of hi gh-level width of t1 state expanded. 2. tahw (address hold wait): image of lo w-level width of t1 state expanded. 3. the broken lines indicate high impedance. .com .com .com .com 4 .com u datasheet
chapter 5 bus control function preliminary user?s manual u16894ej1v0ud 193 5.11 cautions with the external bus function, signals may not be outpu t at the correct timing under the following conditions. { multiplex bus mode <1> clkout asynchronous (2.7 v { separate bus mode <1> read cycle, clkout asynchronous (4.0 v { when used in multiplex bus mode and under condition <1> ? ? { when used in separate bus mode and under conditions <1> to <4> set an address setup wait (aswn bit = 1). .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 194 chapter 6 clock generation function 6.1 overview the following clock generation functions are available. { main clock oscillator ? ? ? ? { subclock oscillator ? { on-chip ring oscillator (ring-osc) ? { multiplication ( ? ? { internal system clock generation ? ? { peripheral clock generation { clock output function note this value may change after evaluation. remark f x : main clock oscillation frequency f xx : main clock frequency f r : ring-osc clock frequency .com .com .com .com 4 .com u datasheet
chapter 6 clock generation function preliminary user?s manual u16894ej1v0ud 195 6.2 configuration figure 6-1. clock generator ring-osc intbrg clkout x1 x2 1/8 pll f xx /32 f xx /16 f xx /8 f xx /4 f xx /2 f xx f clk f xt f xx f x f r /8 f r frc bit subclock oscillator xt1 xt2 f xt interval timer brg f brg = f x /2 to f x /2 12 idle mode watch timer clock watch timer clock, watchdog timer 2 clock cls bit, ck3 bit halt control halt mode cpu clock f cpu peripheral clock watchdog timer 1 clock watchdog timer 2 clock internal system clock f xx to f xx /1024 f xw selector selector selector selector ck2 to ck0 bits idle mode idle mode idle control idle control idle control prescaler 2 prescaler 1 main clock stop detection mck bit pllon bit selpll bit stop mode main clock oscillator main clock oscillator stop control mfrc bit port cm f x : main clock oscillation frequency f xx : main clock frequency f clk : internal system clock frequency f xt : subclock frequency f cpu : cpu clock frequency f brg : watch timer clock frequency f xw : watchdog timer 1 clock frequency f r : ring-osc clock frequency .com .com .com .com 4 .com u datasheet
chapter 6 clock generation function preliminary user?s manual u16894ej1v0ud 196 (1) main clock oscillator the main clock oscillator oscillates the following frequencies (f x ): ? ? ? .com .com .com .com 4 .com u datasheet
chapter 6 clock generation function preliminary user?s manual u16894ej1v0ud 197 6.3 registers (1) processor clock control register (pcc) the pcc register is a special register. data can be wr itten to this register only in combination of specific sequences (refer to 3.4.7 special registers ). this register can be read or written in 8-bit or 1-bit units. after reset, pcc is set to 03h. (1/2) frc used not used frc 0 1 use of subclock on-chip feedback resistor pcc mck mfrc cls note ck3 ck2 ck1 ck0 oscillation enabled oscillation stopped mck 0 1 control of main clock oscillator used not used mfrc 0 1 use of main clock on-chip feedback resistor after reset: 03h r/w address: fffff828h main clock operation subclock operation cls note 0 1 status of cpu clock (f cpu ) even if the mck bit is set to 1 while the system is operating with the main clock as the cpu clock, the operation of the main clock does not stop. it stops after the cpu clock has been changed to the subclock. when the main clock is stopped and the device is operating on the subclock, clear the mck bit to 0 and wait until the oscillation stabilization time has been secured by the program before switching back to the main clock. < > < > < > note the cls bit is a read-only bit. .com .com .com .com 4 .com u datasheet
chapter 6 clock generation function preliminary user?s manual u16894ej1v0ud 198 (2/2) f xx f xx /2 f xx /4 f xx /8 (default value) f xx /16 f xx /32 setting prohibited f xt ck2 0 0 0 0 1 1 1 .com .com .com .com 4 .com u datasheet
chapter 6 clock generation function preliminary user?s manual u16894ej1v0ud 199 (a) example of setting main clock operation _set_sub_run : st.b r0, prcmd[r0] set1 3, pcc[r0] -- ck3 bit _check_cls : tst1 4, pcc[r0] -- wait until subclock operation starts. bz _check_cls <3> _stop_main_clock : st.b r0, prcmd[r0] set1 6, pcc[r0] -- mck bit .com .com .com .com 4 .com u datasheet
chapter 6 clock generation function preliminary user?s manual u16894ej1v0ud 200 (b) example of setting subclock operation _start_main_osc : st.b r0, prcmd[r0] -- release of protection of special registers clr1 6, pcc[r0] -- main clock starts oscillating <2> movea 0x55, r0, r11 -- wait for oscillation stabilization time _wait_ost : nop nop nop addi -1, r11, r11 mp r0, r11 bne _program_wait <3> st.b r0, prcmd[r0] clr1 3, pcc[r0] -- ck3 _check_cls : tst1 4, pcc[r0] -- wait until main clock operation starts bnz _check_cls remark the above description is an exampl e. note with caution that t he cls bit is read in a closed loop in <4>. .com .com .com .com 4 .com u datasheet
chapter 6 clock generation function preliminary user?s manual u16894ej1v0ud 201 (2) ring-osc mode register (rcm) the rcm register is an 8-bit register that se ts the operation mode of the ring-osc oscillator. this register can be read or written in 8-bit or 1-bit units. after reset, rcm is cleared to 00h. caution the settings of the rcm register differ fo r a mask rom version and flash memory version. refer to chapter 30 mask opt ion/option byte for details. ? mask rom version ( pd703313, 703313y) valid when ?(ring-osc) can be stopped by software? is selected by the mask option. ? flash memory version ( pd70f3311, 70f3311y, 70f3313, 70f3313y) valid when ringstp is cleared to 0 by the option byte setting. 0 rcm 0 0 0 0 0 0 rstop after reset: 00h r/w address: fffff80ch < > ring-osc oscillation enabled. ring-osc oscillation disabled (stopped). rstop 0 1 enables/disables ring-osc oscillation (3) cpu operation clock status register (ccls) the ccls register indicates the cpu operation clock status. this register is read-only, in 8-bit or 1-bit units. after reset, ccls is cleared to 00h. 0 ccls 0 0 0 0 0 0 cclsf after reset: 00h r address: fffff82eh operates on main clock (f x ) or subclock (f xt ). operates on ring-osc (f r ). cclsf 0 1 cpu operation clock status .com .com .com .com 4 .com u datasheet
chapter 6 clock generation function preliminary user?s manual u16894ej1v0ud 202 6.4 operation 6.4.1 operation of each clock the following table shows the oper ation status of each clock. table 6-1. operation status of each clock pcc register cls bit = 0, mck bit = 0 cls bit = 1, mck bit = 0 cls bit = 1, mck bit = 1 register setting and operation status target clock during reset during oscillation stabilization time count halt mode idle mode stop mode subclock mode sub-idle mode subclock mode sub-idle mode main clock oscillator (f x ) { { { { { { { { { { { { { { cpu clock (f cpu ) { { { { { { { { { { { { { { { { { { { { { wdt1 clock (f xw ) { { { { { { { { { { { { { wdt2 clock (sub) { { { { { { { { { remark o: operable .com .com .com .com 4 .com u datasheet
chapter 6 clock generation function preliminary user?s manual u16894ej1v0ud 203 6.5 pll function 6.5.1 overview the pll function is used to output the operating clock of the cpu and per ipheral macro at a frequency 4 times higher than the oscillation frequency, and select the clock-through mode. when pll function is used: input clock = 2 to 5 mhz (f xx : 8 to 20 mhz) clock-through mode: input clock = 2 to 10 mhz (f xx : 2 to 10 mhz) 6.5.2 register (1) pll control register (pllctl) the pllctl register is an 8-bit register that controls the security function of pll and rto. this register can be read or written in 8-bit or 1-bit units. after reset, pllctl is set to 01h. 0 pllctl 0 0 0 0 rtost0 note selpll pllon pll stopped pll operating pllon 0 1 pll operation stop register clock-through operation pll operation selpll 0 1 pll clock selection register after reset: 01h r/w address: fffff806h < > < > < > note for the rtost0 bit, refer to chapter 13 real-time output function (rto) . caution be sure to clear bits 4 to 7 to 0. chan ging bit 3 does not a ffect the operation. .com .com .com .com 4 .com u datasheet
chapter 6 clock generation function preliminary user?s manual u16894ej1v0ud 204 6.5.3 usage (1) when pll is used ? ? ? ? .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 205 chapter 7 16-bit timer/event counter p (tmp) timer p (tmp) is a 16-bit timer/event counter. the v850es/kg1+ incorporates tmp0. 7.1 overview an outline of tmp0 is shown below. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 206 7.3 configuration tmp0 includes the following hardware. table 7-1. configuration of tmp0 item configuration timer register 16-bit counter registers tmp0 capture/compare registers 0, 1 (tp0ccr0, tp0ccr1) tmp0 counter read buffer register (tp0cnt) ccr0, ccr1 buffer registers timer inputs 2 (tip00 note , tip01 pins) timer outputs 2 (top00, top01 pins) control registers tmp0 control registers 0, 1 (tp0ctl0, tp0ctl1) tmp0 i/o control registers 0 to 2 (tp0ioc0 to tp0ioc2) tmp0 option registers 0, 1 (tp0opt0, tp0opt1) note the tip00 pin functions alternat ely as a capture trigger input signal, external event count input signal, and external trigger input signal. figure 7-1. block diagram of tmp0 f xx f xx /2 f xx /4 f xx /8 f xx /16 f xx /32 f xx /64 f xx /128 selector internal bus internal bus top00 top01 tip00 tip01 selector ccr0 buffer register ccr1 buffer register tp0ccr0 tp0ccr1 16-bit counter tp0cnt inttp0ov inttp0cc0 inttp0cc1 output controller clear edge detector edge detector digital noise eliminator remark f xx : main clock frequency .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 207 (1) 16-bit counter this 16-bit counter can count inte rnal clocks or external events. the count value of this counter can be read by using the tp0cnt register. when the tp0ctl0.tp0ce bit = 0, the va lue of the 16-bit counter is ffffh. if the tp0cnt register is read at this time, 0000h is read. reset input clears the tp0ce bit to 0. t herefore, the 16-bit counter is set to ffffh. (2) ccr0 buffer register this is a 16-bit compare register that com pares the count value of the 16-bit counter. when the tp0ccr0 register is used as a compare regist er, the value written to the tp0ccr0 register is transferred to the ccr0 buffer register. when the count value of the 16-bit counter matches the value of the ccr0 buffer register, a compare match interrupt request signal (inttp0cc0) is generated. the ccr0 buffer register cannot be read or written directly. the ccr0 buffer register is cleared to 0000h after reset, as the tp0ccr0 register is cleared to 0000h. (3) ccr1 buffer register this is a 16-bit compare register that com pares the count value of the 16-bit counter. when the tp0ccr1 register is used as a compare regist er, the value written to the tp0ccr1 register is transferred to the ccr1 buffer register. when the count value of the 16-bit counter matches the value of the ccr1 buffer register, a compare match interrupt request signal (inttp0cc1) is generated. the ccr1 buffer register cannot be read or written directly. the ccr1 buffer register is cleared to 0000h after reset, as the tp0ccr1 register is cleared to 0000h. (4) edge detector this circuit detects the valid edges input to the tip00 and tip01 pins. no edge, rising edge, falling edge, or both the rising and falling edges can be selected as the valid edge by using the tp0ioc1 and tp0ioc2 registers. (5) output controller this circuit controls the output of the top00 and top0 1 pins. the output contro ller is controlled by the tp0ioc0 register. (6) selector this selector selects the count clock for the 16-bit counter . eight types of internal clocks or an external event can be selected as the count clock. (7) digital noise eliminator this circuit is valid only when the tip00 and tip 01 pins are used as a capture trigger input pin. this circuit is controlled by the p0nfc and p1nfc registers. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 208 7.4 registers (1) tmp0 control re gister 0 (tp0ctl0) the tp0ctl0 register is an 8-bit register that controls the operation of tmp0. this register can be read or written in 8-bit or 1-bit units. reset input clears this register to 00h. the same value can always be written to the tp0ctl0 register by software. tp0ce tmp0 operation disabled (tmp0 reset asynchronously note ). tmp0 operation enabled. tmp0 operation started. tp0ce 0 1 tmp0 operation control tp0ctl0 0 0 0 0 tp0cks2 tp0cks1 tp0cks0 654321 after reset: 00h r/w address: fffff5a0h <7> 0 f xx f xx /2 f xx /4 f xx /8 f xx /16 f xx /32 f xx /64 f xx /128 tp0cks2 0 0 0 0 1 1 1 1 internal count clock selection tp0cks1 0 0 1 1 0 0 1 1 tp0cks0 0 1 0 1 0 1 0 1 note tp0opt0.tp0ovf bit, 16-bit counter , timer output (top00, top01 pins) cautions 1. set the tp0cks2 to tp0 cks0 bits when the tp0ce bit = 0. when the value of the tp0ce bi t is changed from 0 to 1, the tp0cks2 to tp0cks0 bits can be set simultaneously. 2. be sure to clear bits 3 to 6 to 0. remark f xx : main clock frequency .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 209 (2) tmp0 control re gister 1 (tp0ctl1) the tp0ctl1 register is an 8-bit register that controls the operation of tmp0. this register can be read or written in 8-bit or 1-bit units. reset input clears this register to 00h. 0 tp0est 0 1 software trigger control tp0ctl1 tp0est tp0eee 0 0 tp0md2 tp0md1 tp0md0 <6> <5> 4 3 2 1 after reset: 00h r/w address: fffff5a1h generate a valid signal for external trigger input. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 210 (3) tmp0 i/o control register 0 (tp0ioc0) the tp0ioc0 register is an 8-bit register that controls the timer output (top00, top01 pins). this register can be read or written in 8-bit or 1-bit units. reset input clears this register to 00h. 0 tp0ol1 0 1 top01 pin output level setting top01 pin output inversion disabled top01 pin output inversion enabled tp0ioc0 0 0 0 tp0ol1 tp0oe1 tp0ol0 tp0oe0 6543<2>1 after reset: 00h r/w address: fffff5a2h tp0oe1 0 1 top01 pin output setting timer output disabled ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 211 (4) tmp0 i/o control register 1 (tp0ioc1) the tp0ioc1 register is an 8-bit regist er that controls the valid edge of the capture trig ger input signals (tip00, tip01 pins). this register can be read or written in 8-bit units. reset input clears this register to 00h. 0 tp0is3 0 0 1 1 tp0is2 0 1 0 1 capture trigger input signal (tip01 pin) valid edge setting no edge detection (capture operation invalid) detection of rising edge detection of falling edge detection of both edges tp0ioc1 0 0 0 tp0is3 tp0is2 tp0is1 tp0is0 654321 after reset: 00h r/w address: fffff5a3h tp0is1 0 0 1 1 tp0is0 0 1 0 1 capture trigger input signal (tip00 pin) valid edge setting no edge detection (capture operation invalid) detection of rising edge detection of falling edge detection of both edges 7 0 cautions 1. rewrite the tp0is3 to tp0is0 bits when the tp0ctl0.tp0ce bit = 0. (the same value can be written when the tp0ce bit = 1.) if rewriting was mistakenly performed, clear the tp0ce bit to 0 and then set the bits again. 2. the tp0is3 to tp0is0 bi ts are valid only in the free- running timer mode and the pulse width measurement mode. in all other modes, a capture operation is not possible. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 212 (5) tmp0 i/o control register 2 (tp0ioc2) the tp0ioc2 register is an 8-bit register that controls the valid edge of the external event count input signal (tip00 pin) and external trigger input signal (tip00 pin). this register can be read or written in 8-bit or 1-bit units. reset input clears this register to 00h. 0 tp0ees1 0 0 1 1 tp0ees0 0 1 0 1 external event count input signal (tip00 pin) valid edge setting no edge detection (external event count invalid) detection of rising edge detection of falling edge detection of both edges tp0ioc2 0 0 0 tp0ees1 tp0ees0 tp0ets1 tp0ets0 654321 after reset: 00h r/w address: fffff5a4h tp0ets1 0 0 1 1 tp0ets0 0 1 0 1 external trigger input signal (tip00 pin) valid edge setting no edge detection (external trigger invalid) detection of rising edge detection of falling edge detection of both edges 7 0 cautions 1. rewrite the tp0ees1, tp0ees0, tp0ets1, and tp0ets0 bits when the tp0ctl0.tp0ce bit = 0. (the same value can be written when the tp0ce bit = 1.) if rewriting was mistakenly performed, clear the tp0ce bit to 0 and then set the bits again. 2. the tp0ees1 and tp0ees0 bi ts are valid only when the tp0ctl1.tp0eee bit = 1 or when the external event count mode (tp0ctl1.tp0md2 to tp0ctl1.tp0md0 bits = 001) has been set. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 213 (6) tmp0 option register 0 (tp0opt0) the tp0opt0 register is an 8-bit register used to set the capture/compare operation and detect an overflow. this register can be read or written in 8-bit or 1-bit units. reset input clears this register to 00h. 0 tp0ccs1 0 1 tp0ccr1 register capture/compare selection the tp0ccs1 bit setting is valid only in the free-running timer mode. compare register selected capture register selected tp0opt0 0 tp0ccs1 tp0ccs0 0 0 0 tp0ovf 654321 after reset: 00h r/w address: fffff5a5h tp0ccs0 0 1 tp0ccr0 register capture/compare selection the tp0ccs0 bit setting is valid only in the free-running timer mode. compare register selected capture register selected tp0ovf set (1) reset (0) tmp0 overflow detection flag the tp0ovf bit is reset when the 16-bit counter count value overflows from ffffh to 0000h in the free-running timer mode or the pulse width measurement mode. an interrupt request signal (inttp0ov) is generated at the same time that the tp0ovf bit is set to 1. the inttp0ov signal is not generated in modes other than the free-running timer mode and the pulse width measurement mode. the tp0ovf bit is not cleared even when the tp0ovf bit or the tp0opt0 register are read when the tp0ovf bit = 1. the tp0ovf bit can be both read and written, but the tp0ovf bit cannot be set to 1 by software. writing 1 has no influence on the operation of tmp0. overflow occurred tp0ovf bit 0 written or tp0ctl0.tp0ce bit = 0 7 <0> cautions 1. rewrite the tp0ccs1 and tp0ccs0 bits when the tp0ce bit = 0. (the same value can be written when the tp0ce bit = 1.) if rewriting was mi stakenly performed, clear the tp0ce bit to 0 and then set the bits again. 2. be sure to clear bits 1 to 3, 6, and 7 to 0. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 214 (7) tmp0 capture/compare register 0 (tp0ccr0) the tp0ccr0 register can be used as a capture register or a com pare register depending on the mode. this register can be used as a capture register or a compare register only in the free-running timer mode, depending on the setting of the tp0opt0.tp0ccs0 bit. in the pulse width measurement mode, the tp0ccr0 register can be used only as a capt ure register. in any other mode, this register can be used only as a compare register. the tp0ccr0 register can be r ead or written during operation. this register can be read or written in 16-bit units. reset input clears this register to 0000h. caution accessing the tp0ccr0 register is disable d during subclock operation with the main clock stopped. for details, refer to 3.4.8 (2). tp0ccr0 12 10 8 6 4 2 after reset: 0000h r/w address: fffff5a6h 14 0 13 11 9 7 5 3 15 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 215 (a) function as compare register the tp0ccr0 register can be rewritten even when the tp0ctl0.tp0ce bit = 1. the set value of the tp0ccr0 register is transferred to the ccr0 buffer register. when the value of the 16-bit counter matches the value of the ccr0 buffer register, a compare match interrupt request signal (inttp0cc0) is generated. if top00 pin output is ena bled at this time, the output of the top00 pin is inverted. when the tp0ccr0 register is used as a cycle register in the interval timer mode, external event count mode, external trigger pulse output mode, one-shot pulse output mode, or pwm output mode, the value of the 16-bit counter is cleared (0000h) if its count va lue matches the value of the ccr0 buffer register. (b) function as capture register when the tp0ccr0 register is used as a capture regi ster in the free-running timer mode, the count value of the 16-bit counter is stored in the tp0ccr0 register if the valid ed ge of the capture trigger input pin (tip00 pin) is detected. in the pulse width measur ement mode, the count value of the 16-bit counter is stored in the tp0ccr0 register and the 16-bit counter is cleared (0000h) if the valid edge of the capture trigger input pin (tip00 pin) is detected. even if the capture operation and reading the tp0 ccr0 register conflict, the correct value of the tp0ccr0 register can be read. the following table shows the functions of the capture/compare re gister in each mode, and how to write data to the compare register. table 7-2. function of capture/co mpare register in each mode a nd how to write compare register operation mode capture/compare register how to write compare register interval timer compare register anytime write external event counter compare register anytime write external trigger pulse output compare register batch write one-shot pulse output compare register anytime write pwm output compare register batch write free-running timer capture/compare register anytime write pulse width measurement capture register ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 216 (8) tmp0 capture/compare register 1 (tp0ccr1) the tp0ccr1 register can be used as a capture register or a com pare register depending on the mode. this register can be used as a capture register or a compare register only in the free-running timer mode, depending on the setting of the tp0opt0.tp0ccs1 bit. in the pulse width measurement mode, the tp0ccr1 register can be used only as a capt ure register. in any other mode, this register can be used only as a compare register. the tp0ccr1 register can be r ead or written during operation. this register can be read or written in 16-bit units. reset input clears this register to 0000h. caution accessing the tp0ccr1 register is disable d during subclock operation with the main clock stopped. for details, refer to 3.4.8 (2). tp0ccr1 12 10 8 6 4 2 after reset: 0000h r/w address: fffff5a8h 14 0 13 11 9 7 5 3 15 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 217 (a) function as compare register the tp0ccr1 register can be rewritten even when the tp0ctl0.tp0ce bit = 1. the set value of the tp0ccr1 register is transferred to the ccr1 buffer register. when the value of the 16-bit counter matches the value of the ccr1 buffer register, a compare match interrupt request signal (inttp0cc1) is generated. if top01 pin output is ena bled at this time, the output of the top01 pin is inverted. (b) function as capture register when the tp0ccr1 register is used as a capture regi ster in the free-running timer mode, the count value of the 16-bit counter is stored in the tp0ccr1 register if the valid ed ge of the capture trigger input pin (tip01 pin) is detected. in the pulse width measur ement mode, the count value of the 16-bit counter is stored in the tp0ccr1 register and the 16-bit counter is cleared (0000h) if the valid edge of the capture trigger input pin (tip01 pin) is detected. even if the capture operation and reading the tp0 ccr1 register conflict, the correct value of the tp0ccr1 register can be read. the following table shows the functions of the capture/compare re gister in each mode, and how to write data to the compare register. table 7-3. function of capture/co mpare register in each mode a nd how to write compare register operation mode capture/compare register how to write compare register interval timer compare register anytime write external event counter compare register anytime write external trigger pulse output compare register batch write one-shot pulse output compare register anytime write pwm output compare register batch write free-running timer capture/compare register anytime write pulse width measurement capture register ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 218 (9) tmp0 counter read buffer register (tp0cnt) the tp0cnt register is a read buffer register that can read the count va lue of the 16-bit counter. if this register is read when the tp0ctl0.tp0ce bit = 1, the count value of the 16-bit timer can be read. this register is read-only, in 16-bit units. the value of the tp0cnt register is cleared to 0000h wh en the tp0ce bit = 0. if t he tp0cnt register is read at this time, the value of the 16-bit count er (ffffh) is not read, but 0000h is read. the value of the tp0cnt register is cleared to 000 0h after reset, as the tp0ce bit is cleared to 0. caution accessing the tp0cnt register is disabl ed during subclock operation with the main clock stopped. for details, refer to 3.4.8 (2). tp0cnt 12 10 8 6 4 2 after reset: 0000h r address: fffff5aah 14 0 13 11 9 7 5 3 15 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 219 7.5 operation tmp0 can perform the following operations. operation tp0ctl1.tp0est bit (software trigger bit) tip00 pin (external trigger input) capture/compare register setting compare register write interval timer mode invalid invalid compare only anytime write external event count mode note 1 invalid invalid compare only anytime write external trigger pulse output mode note 2 valid valid compare only batch write one-shot pulse output mode note 2 valid valid compare only anytime write pwm output mode invalid invalid compare only batch write free-running timer mode invalid invalid switching enabled anytime write pulse width measurement mode note 2 invalid invalid capture only not applicable notes 1. to use the external event count mode, specify that t he valid edge of the tip00 pin capture trigger input is not detected (by clearing the tp0ioc1.tp0i s1 and tp0ioc1.tp0is0 bits to ?00?). 2. when using the external trigger pulse output m ode, one-shot pulse output mode, and pulse width measurement mode, select the internal clock as the count clock (by clearing the tp0ctl1.tp0eee bit to 0). .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 220 7.5.1 interval timer mode (t p0md2 to tp0md0 bits = 000) in the interval timer mode, an interrupt request signal (inttp0cc0) is generated at t he specified interval if the tp0ctl0.tp0ce bit is set to 1. a square wave whose hal f cycle is equal to the interval can be output from the top00 pin. usually, the tp0ccr1 register is not used in the interval timer mode. figure 7-2. configuration of interval timer 16-bit counter output controller ccr0 buffer register tp0ce bit tp0ccr0 register count clock selection clear match signal top00 pin inttp0cc0 signal figure 7-3. basic timing of operation in interval timer mode ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register top00 pin output inttp0cc0 signal d 0 d 0 d 0 d 0 d 0 interval (d 0 + 1) interval (d 0 + 1) interval (d 0 + 1) interval (d 0 + 1) .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 221 when the tp0ce bit is set to 1, the va lue of the 16-bit counter is cleared fr om ffffh to 0000h in synchronization with the count clock, and t he counter starts counting. at this time, the out put of the top00 pin is inverted. additionally, the set value of the tp0ccr0 register is transferred to the ccr0 buffer register. when the count value of the 16-bit counter matches the valu e of the ccr0 buffer register, the 16-bit counter is cleared to 0000h, the output of the top00 pin is in verted, and a compare match interrupt request signal (inttp0cc0) is generated. the interval can be calculated by the following expression. interval = (set value of tp0ccr0 register + 1) .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 222 figure 7-4. register setting for in terval timer mode operation (2/2) (d) tmp0 counter read buffer register (tp0cnt) by reading the tp0cnt register, the count va lue of the 16-bit counter can be read. (e) tmp0 capture/compare register 0 (tp0ccr0) if the tp0ccr0 register is set to d 0 , the interval is as follows. interval = (d 0 + 1) .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 223 (1) interval timer mode operation flow figure 7-5. software processing flow in interval timer mode ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register top00 pin output inttp0cc0 signal d 0 d 0 d 0 d 0 <1> <2> tp0ce bit = 1 tp0ce bit = 0 register initial setting tp0ctl0 register (tp0cks0 to tp0cks2 bits) tp0ctl1 register, tp0ioc0 register, tp0ccr0 register initial setting of these registers is performed before setting the tp0ce bit to 1. the tp0cks0 to tp0cks2 bits can be set at the same time when counting has been started (tp0ce bit = 1). the counter is initialized and counting is stopped by clearing the tp0ce bit to 0. start stop <1> count operation start flow <2> count operation stop flow .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 224 (2) interval timer mode operation timing (a) operation if tp0ccr0 register is cleared to 0000h if the tp0ccr0 register is cleared to 0000h, the inttp 0cc0 signal is generated at each count clock, and the output of the top00 pin is inverted. the value of the 16-bit counter is always 0000h. count clock 16-bit counter tp0ce bit tp0ccr0 register top00 pin output inttp0cc0 signal 0000h interval time count clock cycle interval time count clock cycle interval time count clock cycle ffffh 0000h 0000h 0000h 0000h .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 225 (b) operation if tp0ccr0 register is set to ffffh if the tp0ccr0 register is set to ffffh, the 16-bit co unter counts up to ffffh. t he counter is cleared to 0000h in synchronization with the next count-up timing. the inttp0cc0 signal is generated and the output of the top00 pin is inverted. at this time, an overflow interrupt request signal (inttp0ov) is not generated, nor is the overflow flag (tp0opt0.tp0ovf bit) set to 1. ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register top00 pin output inttp0cc0 signal ffffh interval time 10000h .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 226 (c) notes on rewriting tp0ccr0 register to change the value of the tp0ccr0 register to a smaller value, stop counting once and then change the set value. if the value of the tp0ccr0 register is rewritten to a smaller value during counting, the 16-bit counter may overflow. ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register tp0ol0 bit top00 pin output inttp0cc0 signal d 1 d 2 d 1 d 1 d 2 d 2 d 2 l interval time (1) interval time (ng) interval time (2) remark interval time (1): (d 1 + 1) count clock cycle interval time (ng): (10000h + d 2 + 1) count clock cycle interval time (2): (d 2 + 1) count clock cycle if the value of the tp0ccr0 register is changed from d 1 to d 2 while the count value is greater than d 2 but less than d 1 , the count value is transferred to the ccr0 buffer register as soon as the tp0ccr0 register has been rewritten. consequently, the value of the 16-bit counter that is compared is d 2 . because the count value has already exceeded d 2 , however, the 16-bit c ounter counts up to ffffh, overflows, and then counts up again from 0000h. when the count value matches d 2 , the inttp0cc0 signal is generated and the output of the top00 pin is inverted. therefore, the inttp0cc0 signal may not be generated at the interval time ?(d 1 + 1) count clock cycle? or ?(d 2 + 1) count clock cycle? originally expected, but may be generated at an interval of ?(10000h + d 2 + 1) count clock cycle?. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 227 (d) operation of tp0ccr1 register figure 7-6. configuration of tp0ccr1 register ccr0 buffer register tp0ccr0 register tp0ccr1 register ccr1 buffer register top00 pin inttp0cc0 signal top01 pin inttp0cc1 signal 16-bit counter output controller tp0ce bit count clock selection clear match signal output controller match signal .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 228 if the set value of the tp0ccr1 register is less than the set value of the tp0ccr0 register, the inttp0cc1 signal is generated once per cycle. at the same time, the output of t he top01 pin is inverted. the top01 pin outputs a square wave with the sa me cycle as that output by the top00 pin. figure 7-7. timing chart when d 01 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 229 if the set value of the tp0ccr1 register is greater than the set value of the tp0ccr0 register, the count value of the 16-bit counter does not match the va lue of the tp0ccr1 register. consequently, the inttp0cc1 signal is not generated, nor is the output of the top01 pin changed. figure 7-8. timing chart when d 01 < d 11 ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register top00 pin output inttp0cc0 signal tp0ccr1 register top01 pin output inttp0cc1 signal d 01 d 11 d 01 d 01 d 01 d 01 l .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 230 7.5.2 external event count mode (tp0md2 to tp0md0 bits = 001) in the external event count mode, the valid edge of the external event count input is counted when the tp0ctl0.tp0ce bit is set to 1, and an interrupt request si gnal (inttp0cc0) is generated each time the specified number of edges have been counted . the top00 pin cannot be used. usually, the tp0ccr1 register is not us ed in the external event count mode. figure 7-9. configuration in external event count mode 16-bit counter ccr0 buffer register tp0ce bit tp0ccr0 register edge detector clear match signal inttp0cc0 signal tip00 pin (external event count input) figure 7-10. basic timing in external event count mode ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal d 0 d 0 d 0 d 0 16-bit counter tp0ccr0 register inttp0cc0 signal external event count input (tip00 pin input) d 0 external event count interval (d 0 + 1) d 0 ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 231 when the tp0ce bit is set to 1, the value of the 16-bit counter is clea red from ffffh to 0000h. the counter counts each time the valid edge of external event count input is detected. additionally, the set value of the tp0ccr0 register is transferred to the ccr0 buffer register. when the count value of the 16-bit counter matches the valu e of the ccr0 buffer register, the 16-bit counter is cleared to 0000h, and a compare match interrupt request signal (inttp0cc0) is generated. the inttp0cc0 signal is generated each time the valid e dge of the external event count input has been detected (set value of tp0ccr0 register + 1) times. figure 7-11. register setting for operati on in external event count mode (1/2) (a) tmp0 control re gister 0 (tp0ctl0) 0/1 0 0 0 0 tp0ctl0 0: stop counting 1: enable counting 000 tp0cks2 tp0cks1 tp0cks0 tp0ce (b) tmp0 control register 1 (tp0ctl1) 00000 tp0ctl1 0, 0, 1: external event count mode 001 tp0md2 tp0md1 tp0md0 tp0eee tp0est (c) tmp0 i/o control register 0 (tp0ioc0) 0 0 0 0 0/1 tp0ioc0 0: disable top00 pin output 0: disable top01 pin output 1: enable top01 pin output setting of output level with operation of top01 pin disabled 0: low level 1: high level 0/1 0 0 tp0oe1 tp0ol0 tp0oe0 tp0ol1 (d) tmp0 i/o control register 2 (tp0ioc2) 0 0 0 0 0/1 tp0ioc2 select valid edge of external event count input 0/1 0 0 tp0ees0 tp0ets1 tp0ets0 tp0ees1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 232 figure 7-11. register setting for operati on in external event count mode (2/2) (e) tmp0 counter read buffer register (tp0cnt) the count value of the 16-bit counter can be read by reading the tp0cnt register. (f) tmp0 capture/compare register 0 (tp0ccr0) if d 0 is set to the tp0ccr0 register, the counter is cleared and a compare match interrupt request signal (inttp0cc0) is generated when the nu mber of external event counts reaches (d 0 + 1). (g) tmp0 capture/compare register 1 (tp0ccr1) usually, the tp0ccr1 register is not used in the exte rnal event count mode. however, the set value of the tp0ccr1 register is transferred to the ccr1 buff er register. when the count value of the 16-bit counter matches the value of the ccr1 buffer re gister, a compare match interrupt request signal (inttp0cc1) is generated. therefore, mask the interrupt signal by using the interrupt mask flag (tp0ccmk1). remark tmp0 i/o control register 1 (tp0ioc1) and tmp0 option register 0 (tp0opt0) are not used in the external event count mode. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 233 (1) external event count mode operation flow figure 7-12. flow of software processing in external event count mode ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal d 0 d 0 d 0 d 0 <1> <2> tp0ce bit = 1 tp0ce bit = 0 register initial setting tp0ctl0 register (tp0cks0 to tp0cks2 bits) tp0ctl1 register, tp0ioc0 register, tp0ioc2 register, tp0ccr0 register initial setting of these registers is performed before setting the tp0ce bit to 1. the tp0cks0 to tp0cks2 bits can be set at the same time when counting has been started (tp0ce bit = 1). the counter is initialized and counting is stopped by clearing the tp0ce bit to 0. start stop <1> count operation start flow <2> count operation stop flow .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 234 (2) operation timing in external event count mode (a) operation if tp0ccr0 register is cleared to 0000h if the tp0ccr0 register is cleared to 0000h, the in ttp0cc0 signal is generated each time the valid signal of the external event count signal has been detected. the 16-bit counter is always 0000h. external event count signal 16-bit counter tp0ce bit tp0ccr0 register inttp0cc0 signal 0000h external event count signal interval external event count signal interval external event count signal interval ffffh 0000h 0000h 0000h 0000h (b) operation if tp0ccr0 register is set to ffffh if the tp0ccr0 register is set to ffffh, the 16-bit co unter counts to ffffh each time the valid edge of the external event count signal has been detected. the 16-bit counter is cleared to 0000h in synchronization with the next count-up timing, and the inttp0cc0 signal is generated. at this time, the tp0opt0.tp0ovf bit is not set. ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal ffffh external event count signal interval external event count signal interval external event count signal interval .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 235 (c) notes on rewriting the tp0ccr0 register to change the value of the tp0ccr0 register to a smaller value, stop counting once and then change the set value. if the value of the tp0ccr0 register is rewritten to a smaller value during counting, the 16-bit counter may overflow. ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal d 1 d 2 d 1 d 1 d 2 d 2 d 2 external event count signal interval (1) (d 1 + 1) external event count signal interval (ng) (10000h + d 2 + 1) external event count signal interval (2) (d 2 + 1) if the value of the tp0ccr0 register is changed from d 1 to d 2 while the count value is greater than d 2 but less than d 1 , the count value is transferred to the ccr0 buffer register as soon as the tp0ccr0 register has been rewritten. consequently, the value t hat is compared with the 16-bit counter is d 2 . because the count value has already exceeded d 2 , however, the 16-bit c ounter counts up to ffffh, overflows, and then counts up again from 0000h. when the count value matches d 2 , the inttp0cc0 signal is generated. therefore, the inttp0cc0 signal may not be generated at the va lid edge count of ?(d 1 + 1) times? or ?(d 2 + 1) times? originally expected, but may be generated at the valid edge count of ?(10000h + d 2 + 1) times?. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 236 (d) operation of tp0ccr1 register figure 7-13. configuration of tp0ccr1 register ccr0 buffer register tp0ce bit tp0ccr0 register 16-bit counter tp0ccr1 register ccr1 buffer register clear match signal match signal inttp0cc0 signal output controller top01 pin inttp0cc1 signal edge detector tip00 pin if the set value of the tp0ccr1 register is smalle r than the set value of the tp0ccr0 register, the inttp0cc1 signal is generated once per cycle. at the same time, the output signal of the top01 pin is inverted. figure 7-14. timing chart when d 01 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 237 if the set value of the tp0ccr1 register is greater than the set value of the tp0ccr0 register, the inttp0cc1 signal is not generated because the count va lue of the 16-bit counte r and the value of the tp0ccr1 register do not match. nor is t he output signal of t he top01 pin changed. figure 7-15. timing chart when d 01 < d 11 ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal tp0ccr1 register top01 pin output inttp0cc1 signal d 01 d 11 d 01 d 01 d 01 d 01 l .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 238 7.5.3 external trigger pulse output m ode (tp0md2 to tp0md0 bits = 010) in the external trigger pulse output mode, 16-bit timer/event counter p waits for a trigger when the tp0ctl0.tp0ce bit is set to 1. when the valid edge of an ex ternal trigger input signal is detected, 16-bit timer/event counter p starts counting, and outputs a pwm waveform from the top01 pin. pulses can also be output by generating a software trigger instead of using the external trigger. when using a software trigger, a square wave that has one cycle of the pwm waveform as half its cycle can also be output from the top00 pin. figure 7-16. configuration in external trigger pulse output mode ccr0 buffer register tp0ce bit tp0ccr0 register 16-bit counter tp0ccr1 register ccr1 buffer register clear match signal match signal inttp0cc0 signal output controller (rs-ff) output controller top01 pin inttp0cc1 signal top00 pin count clock selection count start control edge detector software trigger generation tip00 pin transfer transfer s r .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 239 figure 7-17. basic timing in exte rnal trigger pulse output mode external trigger input (tip00 pin input) top00 pin output (software trigger) d 1 d 0 d 0 d 1 d 1 d 1 d 1 d 0 d 0 d 0 wait for trigger active level width (d 1 ) cycle (d 0 + 1) cycle (d 0 + 1) cycle (d 0 + 1) active level width (d 1 ) active level width (d 1 ) ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal tp0ccr1 register inttp0cc1 signal top01 pin output 16-bit timer/event counter p waits for a trigger when the tp0c e bit is set to 1. when the trigger is generated, the 16-bit counter is cleared from ffffh to 0000h, starts count ing at the same time, and out puts a pwm waveform from the top01 pin. if the trigger is generated again while the counter is opera ting, the counter is cleared to 0000h and restarted. the active level width, cycle, and duty factor of the pwm waveform can be calculated as follows. active level width = (set value of tp0ccr1 register) .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 240 figure 7-18. setting of registers in exte rnal trigger pulse output mode (1/2) (a) tmp0 control re gister 0 (tp0ctl0) 0/1 0 0 0 0 tp0ctl0 select count clock note 0: stop counting 1: enable counting 0/1 0/1 0/1 tp0cks2 tp0cks1 tp0cks0 tp0ce note the setting is invalid when the tp0ctl1.tp0eee bit = 1. (b) tmp0 control register 1 (tp0ctl1) 0 0/1 0/1 0 0 tp0ctl1 0: operate on count clock selected by tp0cks0 to tp0cks2 bits 1: count with external event input signal generate software trigger when 1 is written 010 tp0md2 tp0md1 tp0md0 tp0eee tp0est 0, 1, 0: external trigger pulse output mode (c) tmp0 i/o control register 0 (tp0ioc0) 0 0 0 0 0/1 tp0ioc0 0: disable top00 pin output 1: enable top00 pin output settings of output level while operation of top00 pin is disabled 0: low level 1: high level 0: disable top01 pin output 1: enable top01 pin output specifies active level of top01 pin output 0: active-high 1: active-low 0/1 0/1 0/1 tp0oe1 tp0ol0 tp0oe0 tp0ol1 top01 pin output 16-bit counter ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 241 figure 7-18. setting of registers in exte rnal trigger pulse output mode (2/2) (d) tmp0 i/o control register 2 (tp0ioc2) 0 0 0 0 0/1 tp0ioc2 select valid edge of external trigger input select valid edge of external event count input 0/1 0/1 0/1 tp0ees0 tp0ets1 tp0ets0 tp0ees1 (e) tmp0 counter read buffer register (tp0cnt) the value of the 16-bit counter can be read by reading the tp0cnt register. (f) tmp0 capture/compare register s 0 and 1 (tp0ccr0 and tp0ccr1) if d 0 is set to the tp0ccr0 register and d 1 to the tp0ccr1 register, the cycle and active level of the pwm waveform are as follows. cycle = (d 0 + 1) .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 242 (1) operation flow in extern al trigger pulse output mode figure 7-19. software processing flow in ex ternal trigger pulse output mode (1/2) ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register ccr0 buffer register inttp0cc0 signal tp0ccr1 register ccr1 buffer register inttp0cc1 signal top01 pin output external trigger input (tip00 pin input) top00 pin output (software trigger) d 10 d 00 d 00 d 01 d 00 d 00 d 10 d 10 d 11 d 10 d 10 d 10 d 11 d 10 d 01 d 00 d 10 d 10 d 00 d 10 d 00 d 11 d 11 d 01 d 01 d 01 <1> <2> <3> <4> <5> .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 243 figure 7-19. software processing flow in ex ternal trigger pulse output mode (2/2) tp0ce bit = 1 setting of tp0ccr0 register register initial setting tp0ctl0 register (tp0cks0 to tp0cks2 bits) tp0ctl1 register, tp0ioc0 register, tp0ioc2 register, tp0ccr0 register, tp0ccr1 register initial setting of these registers is performed before setting the tp0ce bit to 1. the tp0cks0 to tp0cks2 bits can be set at the same time when counting is enabled (tp0ce bit = 1). trigger wait status tp0ccr1 register write processing is necessary only when the set cycle is changed. when the counter is cleared after setting, the value of the tp0ccra register is transferred to the ccra buffer register. start setting of tp0ccr1 register <1> count operation start flow <2> tp0ccr0 and tp0ccr1 register setting change flow setting of tp0ccr0 register when the counter is cleared after setting, the value of the tp0ccra register is transferred to the ccra buffer register. setting of tp0ccr1 register <4> tp0ccr0, tp0ccr1 register setting change flow only writing of the tp0ccr1 register must be performed when the set duty factor is changed. when the counter is cleared after setting, the value of the tp0ccra register is transferred to the ccra buffer register. setting of tp0ccr1 register <3> tp0ccr0, tp0ccr1 register setting change flow tp0ce bit = 0 counting is stopped. stop <5> count operation stop flow remark a = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 244 (2) external trigger pulse output mode operation timing (a) note on changing pulse width during operation to change the pwm waveform while the counter is operating, write the tp0ccr1 register last. rewrite the tp0ccra register after writing the tp0ccr1 register after the inttp0cc0 signal is detected. ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register ccr0 buffer register inttp0cc0 signal tp0ccr1 register ccr1 buffer register inttp0cc1 signal top01 pin output external trigger input (tip00 pin input) top00 pin output (software trigger) d 10 d 00 d 00 d 01 d 00 d 10 d 11 d 10 d 11 d 01 d 10 d 10 d 00 d 00 d 11 d 11 d 01 d 01 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 245 in order to transfer data from the tp0ccra register to the ccra buffer register, the tp0ccr1 register must be written. to change both the cycle and active level width of the pwm waveform at this time, first set the cycle to the tp0ccr0 register and then set the active level width to the tp0ccr1 register. to change only the cycle of the pwm waveform, first set the cycle to the tp0ccr0 register, and then write the same value to the tp0ccr1 register. to change only the active level width (duty factor) of the pwm waveform, only the tp0ccr1 register has to be set. after data is written to the tp0ccr1 register, the val ue written to the tp0ccra register is transferred to the ccra buffer register in synchr onization with clearing of the 16-bi t counter, and is used as the value compared with the 16-bit counter. to write the tp0ccr0 or tp0ccr1 register again after writing the tp0ccr1 register once, do so after the inttp0cc0 signal is generated. otherwise, the value of the ccra buffer register may become undefined because the timing of transferring data from the tp0ccra register to the ccra buffer register conflicts with writing the tp0ccra register. remark a = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 246 (b) 0%/100% output of pwm waveform to output a 0% waveform, clear the tp0ccr1 register to 0000h. if the set value of the tp0ccr0 register is ffffh, the inttp0cc1 signal is generated periodically. count clock 16-bit counter tp0ce bit tp0ccr0 register tp0ccr1 register inttp0cc0 signal inttp0cc1 signal top01 pin output d 0 0000h d 0 0000h d 0 0000h d 0 ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 247 (c) conflict between trigger detecti on and match with tp0ccr1 register if the trigger is detected immediately after the inttp 0cc1 signal is generated, the 16-bit counter is immediately cleared to 0000h, the output signal of the top01 pin is asserted, and the counter continues counting. consequently, the inactive peri od of the pwm waveform is shortened. 16-bit counter tp0ccr1 register inttp0cc1 signal top01 pin output external trigger input (tip00 pin input) d 1 d 1 ? ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 248 (d) conflict between trigger detecti on and match with tp0ccr0 register if the trigger is detected immediately after the inttp 0cc0 signal is generated, the 16-bit counter is cleared to 0000h and continues counting up. therefore, the active period of the top01 pin is extended by time from generation of the inttp0cc0 signal to trigger detection. 16-bit counter tp0ccr0 register inttp0cc0 signal top01 pin output external trigger input (tip00 pin input) d 0 d 0 ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 249 (e) generation timing of compare match interrupt request signal (inttp0cc1) the timing of generation of the inttp0cc1 signal in the external trigger pulse output mode differs from the timing of other inttp0cc1 signals; the inttp0cc1 signal is generated when the count value of the 16-bit counter matches the value of the tp0ccr1 register. count clock 16-bit counter tp0ccr1 register top01 pin output inttp0cc1 signal d 1 d 1 ? 2d 1 ? 1d 1 d 1 + 1 d 1 + 2 usually, the inttp0cc1 signal is generated in synch ronization with the next count up, after the count value of the 16-bit counter matches the value of the tp0ccr1 register. in the external trigger pulse output mode, however, it is generated one clock earlier. this is because the timing is changed to match the timing of cha nging the output signal of the top01 pin. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 250 7.5.4 one-shot pulse output mode (tp0md2 to tp0md0 bits = 011) in the one-shot pulse output mode, 16-bit timer/event coun ter p waits for a trigger when the tp0ctl0.tp0ce bit is set to 1. when the valid edge of an external trigger input is detected, 16-bit timer/event co unter p starts counting, and outputs a one-shot pulse from the top01 pin. instead of the external trigger, a software trigger can also be generated to output the pulse. when the software trigger is used, the top00 pin outputs the active level while the 16-bit counter is counting, and the inactive level when the counter is stopped (waiting for a trigger). figure 7-20. configuration in one-shot pulse output mode ccr0 buffer register tp0ce bit tp0ccr0 register tp0ccr1 register ccr1 buffer register clear match signal match signal inttp0cc0 signal output controller (rs-ff) top01 pin inttp0cc1 signal top00 pin count clock selection count start control edge detector software trigger generation tip00 pin transfer transfer s r output controller (rs-ff) s r 16-bit counter .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 251 figure 7-21. basic timing in one-shot pulse output mode ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal tp0ccr1 register inttp0cc1 signal top01 pin output external trigger input (tip00 pin input) d 1 d 0 d 0 d 1 d 1 d 1 d 0 d 0 delay (d 1 ) active level width (d 0 ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 252 figure 7-22. setting of registers in one-shot pulse output mode (1/2) (a) tmp0 control re gister 0 (tp0ctl0) 0/1 0 0 0 0 tp0ctl0 select count clock note 0: stop counting 1: enable counting 0/1 0/1 0/1 tp0cks2 tp0cks1 tp0cks0 tp0ce note the setting is invalid when the tp0ctl1.tp0eee bit = 1. (b) tmp0 control register 1 (tp0ctl1) 0 0/1 0/1 0 0 tp0ctl1 0: operate on count clock selected by tp0cks0 to tp0cks2 bits 1: count external event input signal generate software trigger when 1 is written 011 tp0md2 tp0md1 tp0md0 tp0eee tp0est 0, 1, 1: one-shot pulse output mode (c) tmp0 i/o control register 0 (tp0ioc0) 0 0 0 0 0/1 tp0ioc0 0: disable top00 pin output 1: enable top00 pin output setting of output level while operation of top00 pin is disabled 0: low level 1: high level 0: disable top01 pin output 1: enable top01 pin output specifies active level of top01 pin output 0: active-high 1: active-low 0/1 0/1 0/1 tp0oe1 tp0ol0 tp0oe0 tp0ol1 top01 pin output 16-bit counter ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 253 figure 7-22. setting of registers in one-shot pulse output mode (2/2) (d) tmp0 i/o control register 2 (tp0ioc2) 0 0 0 0 0/1 tp0ioc2 select valid edge of external trigger input select valid edge of external event count input 0/1 0/1 0/1 tp0ees0 tp0ets1 tp0ets0 tp0ees1 (e) tmp0 counter read buffer register (tp0cnt) the value of the 16-bit counter can be read by reading the tp0cnt register. (f) tmp0 capture/compare register s 0 and 1 (tp0ccr0 and tp0ccr1) if d 0 is set to the tp0ccr0 register and d 1 to the tp0ccr1 register, the active level width and output delay period of the one-shot pulse are as follows. active level width = (d 1 ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 254 (1) operation flow in one-shot pulse output mode figure 7-23. software processing flow in one-shot pulse output mode <1> <2> tp0ce bit = 1 tp0ce bit = 0 register initial setting tp0ctl0 register (tp0cks0 to tp0cks2 bits) tp0ctl1 register, tp0ioc0 register, tp0ioc2 register, tp0ccr0 register, tp0ccr1 register initial setting of these registers is performed before setting the tp0ce bit to 1. the tp0cks0 to tp0cks2 bits can be set at the same time when counting has been started (tp0ce bit = 1). trigger wait status count operation is stopped start stop <1> count operation start flow <2> count operation stop flow ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal tp0ccr1 register inttp0cc1 signal top01 pin output external trigger input (tip00 pin input) d 1 d 0 d 0 d 1 d 1 d 0 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 255 (2) operation timing in one-shot pulse output mode (a) note on rewriti ng tp0ccra register to change the set value of the tp0ccra register to a smaller value, stop counting once, and then change the set value. if the value of the tp0ccra register is rewritten to a smaller value during counting, the 16-bit counter may overflow. ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal tp0ccr1 register inttp0cc1 signal top01 pin output external trigger input (tip00 pin input) d 10 d 11 d 00 d 01 d 00 d 10 d 10 d 10 d 01 d 11 d 00 d 00 delay (d 10 ) active level width (d 00 ? ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 256 (b) generation timing of compare match interrupt request signal (inttp0cc1) the generation timing of the inttp0cc1 signal in the on e-shot pulse output mode is different from other inttp0cc1 signals; the inttp0cc1 signal is genera ted when the count value of the 16-bit counter matches the value of the tp0ccr1 register. count clock 16-bit counter tp0ccr1 register top01 pin output inttp0cc1 signal d 1 d 1 ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 257 7.5.5 pwm output mode (tp0md 2 to tp0md0 bits = 100) in the pwm output mode, a pwm waveform is output from the top01 pin when the tp0ctl0.tp0ce bit is set to 1. in addition, a pulse with one cycle of the pwm waveform as half its cycle is output from the top00 pin. figure 7-24. configuration in pwm output mode ccr0 buffer register tp0ce bit tp0ccr0 register 16-bit counter tp0ccr1 register ccr1 buffer register clear match signal match signal inttp0cc0 signal output controller (rs-ff) output controller top01 pin inttp0cc1 signal top00 pin count clock selection count start control transfer transfer s r .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 258 figure 7-25. basic timing in pwm output mode ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register ccr0 buffer register inttp0cc0 signal top00 pin output tp0ccr1 register ccr1 buffer register inttp0cc1 signal top01 pin output d 10 d 00 d 00 d 01 d 00 d 10 d 11 d 10 d 11 d 01 d 10 d 10 d 00 d 00 d 11 d 11 d 01 d 01 active period (d 10 ) cycle (d 00 + 1) inactive period (d 00 ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 259 figure 7-26. register setting in pwm output mode (1/2) (a) tmp0 control re gister 0 (tp0ctl0) 0/1 0 0 0 0 tp0ctl0 select count clock note 0: stop counting 1: enable counting 0/1 0/1 0/1 tp0cks2 tp0cks1 tp0cks0 tp0ce note the setting is invalid when the tp0ctl1.tp0eee bit = 1. (b) tmp0 control register 1 (tp0ctl1) 00000 tp0ctl1 100 tp0md2 tp0md1 tp0md0 tp0eee tp0est 1, 0, 0: pwm output mode (c) tmp0 i/o control register 0 (tp0ioc0) 0 0 0 0 0/1 tp0ioc0 0: disable top00 pin output 1: enable top00 pin output setting of output level while operation of top00 pin is disabled 0: low level 1: high level 0: disable top01 pin output 1: enable top01 pin output specifies active level of top01 pin output 0: active-high 1: active-low 0/1 0/1 0/1 tp0oe1 tp0ol0 tp0oe0 tp0ol1 top01 pin output 16-bit counter ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 260 figure 7-26. register setting in pwm output mode (2/2) (d) tmp0 i/o control register 2 (tp0ioc2) 0 0 0 0 0/1 tp0ioc2 select valid edge of external event count input. 0/1 0 0 tp0ees0 tp0ets1 tp0ets0 tp0ees1 (e) tmp0 counter read buffer register (tp0cnt) the value of the 16-bit counter can be read by reading the tp0cnt register. (f) tmp0 capture/compare register s 0 and 1 (tp0ccr0 and tp0ccr1) if d 0 is set to the tp0ccr0 register and d 1 to the tp0ccr1 register, the cycle and active level of the pwm waveform are as follows. cycle = (d 0 + 1) .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 261 (1) operation flow in pwm output mode figure 7-27. software processing flow in pwm output mode (1/2) ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register ccr0 buffer register inttp0cc0 signal top00 pin output tp0ccr1 register ccr1 buffer register inttp0cc1 signal top01 pin output d 10 d 00 d 00 d 01 d 00 d 00 d 10 d 10 d 11 d 10 d 10 d 10 d 11 d 10 d 01 d 00 d 10 d 10 d 00 d 10 d 00 d 11 d 11 d 01 d 01 d 01 <2> <3> <4> <5> <1> .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 262 figure 7-27. software processing flow in pwm output mode (2/2) tp0ce bit = 1 setting of tp0ccr0 register register initial setting tp0ctl0 register (tp0cks0 to tp0cks2 bits) tp0ctl1 register, tp0ioc0 register, tp0ioc2 register, tp0ccr0 register, tp0ccr1 register initial setting of these registers is performed before setting the tp0ce bit to 1. the tp0cks0 to tp0cks2 bits can be set at the same time when counting is enabled (tp0ce bit = 1). tp0ccr1 write processing is necessary only when the set cycle is changed. when the counter is cleared after setting, the value of the tp0ccra register is transferred to the ccra buffer register. start setting of tp0ccr1 register <1> count operation start flow <2> tp0ccr0, tp0ccr1 register setting change flow setting of tp0ccr0 register when the counter is cleared after setting, the value of compare register a is transferred to the ccra buffer register. setting of tp0ccr1 register <4> tp0ccr0, tp0ccr1 register setting change flow only writing of the tp0ccr1 register must be performed when the set duty factor is changed. when the counter is cleared after setting, the value of compare register a is transferred to the ccra buffer register. setting of tp0ccr1 register <3> tp0ccr0, tp0ccr1 register setting change flow tp0ce bit = 0 counting is stopped. stop <5> count operation stop flow remark a = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 263 (2) pwm output mode operation timing (a) changing pulse width during operation to change the pwm waveform while the counter is operating, write the tp0ccr1 register last. rewrite the tp0ccra register after writing the tp0ccr1 register after the inttp0cc1 signal is detected. ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register ccr0 buffer register tp0ccr1 register ccr1 buffer register top01 pin output inttp0cc0 signal d 10 d 00 d 00 d 01 d 00 d 10 d 11 d 10 d 11 d 01 d 10 d 10 d 00 d 00 d 11 d 11 d 01 d 01 to transfer data from the tp0ccra register to the ccra buffer register, the tp0ccr1 register must be written. to change both the cycle and active level of the pwm waveform at this time, first set the cycle to the tp0ccr0 register and then set the active level to the tp0ccr1 register. to change only the cycle of the pwm waveform, first set the cycle to the tp0ccr0 register, and then write the same value to the tp0ccr1 register. to change only the active level width (duty factor) of the pwm waveform, only the tp0ccr1 register has to be set. after data is written to the tp0ccr1 register, the val ue written to the tp0ccra register is transferred to the ccra buffer register in synchr onization with clearing of the 16-bi t counter, and is used as the value compared with the 16-bit counter. to write the tp0ccr0 or tp0ccr1 register again after writing the tp0ccr1 register once, do so after the inttp0cc0 signal is generated. otherwise, the value of the ccra buffer register may become undefined because the timing of transferring data from the tp0ccra register to the ccra buffer register conflicts with writing the tp0ccra register. remark a = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 264 (b) 0%/100% output of pwm waveform to output a 0% waveform, set the tp0ccr1 register to 0000h. if the set value of the tp0ccr0 register is ffffh, the inttp0cc1 signal is generated periodically. count clock 16-bit counter tp0ce bit tp0ccr0 register tp0ccr1 register inttp0cc0 signal inttp0cc1 signal top01 pin output d 00 0000h d 00 0000h d 00 0000h d 00 ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 265 (c) generation timing of compare match interrupt request signal (inttp0cc1) the timing of generation of the inttp0cc1 signal in the pwm output mode differs from the timing of other inttp0cc1 signals; the inttp0cc1 signal is genera ted when the count value of the 16-bit counter matches the value of the tp0ccr1 register. count clock 16-bit counter tp0ccr1 register top01 pin output inttp0cc1 signal d 1 d 1 ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 266 7.5.6 free-running timer mode (t p0md2 to tp0md0 bits = 101) in the free-running timer mode, 16-bit timer/event counter p starts counting when the tp 0ctl0.tp0ce bit is set to 1. at this time, the tp0ccra register can be used as a compare register or a c apture register, depending on the setting of the tp0opt0.tp0ccs 0 and tp0opt0.tp0ccs1 bits. figure 7-28. configuration in free-running timer mode tp0ccr0 register (capture) tp0ce bit tp0ccr1 register (capture) 16-bit counter tp0ccr1 register (compare) tp0ccr0 register (compare) output controller tp0ccs0, tp0ccs1 bits (capture/compare selection) top00 pin output output controller top01 pin output edge detector count clock selection digital noise eliminator digital noise eliminator tip00 pin (external event count input/ capture trigger input) tip01 pin (capture trigger input) internal count clock 0 1 0 1 inttp0ov signal inttp0cc1 signal inttp0cc0 signal edge detector edge detector remark a = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 267 when the tp0ce bit is set to 1, 16-bit timer/event counter p starts counting, and the ou tput signals of the top00 and top01 pins are inverted. when the count value of the 16-bit counter later matches the set value of the tp0ccra register, a compare match interrupt request signal (inttp0 cca) is generated, and the out put signal of the top0a pin is inverted. the 16-bit counter continues counting in synchronization with t he count clock. when it counts up to ffffh, it generates an overflow interrupt request signal (inttp0ov) at the next clock, is cl eared to 0000h, and continues counting. at this time, the overflow flag (tp0opt0.tp0ovf bit) is also set to 1. clear the overflow flag to 0 by executing the clr instruction by software. the tp0ccra register can be rewritten whil e the counter is operating. if it is re written, the new value is reflected at that time, and compared with the count value. figure 7-29. basic timing in free-r unning timer mode (compare function) ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal top00 pin output tp0ccr1 register inttp0cc1 signal top01 pin output inttp0ov signal tp0ovf bit d 00 d 01 d 10 d 11 d 00 d 10 d 10 d 11 d 11 d 11 d 00 d 01 d 01 cleared to 0 by clr instruction cleared to 0 by clr instruction cleared to 0 by clr instruction cleared to 0 by clr instruction remark a = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 268 when the tp0ce bit is set to 1, the 16-bit counter starts counting. when the valid edge input to the tip0a pin is detected, the count value of the 16-bit counter is stored in the tp0ccra register, and a capture interrupt request signal (inttp0cca) is generated. the 16-bit counter continues counting in synchronization with t he count clock. when it counts up to ffffh, it generates an overflow interrupt request signal (inttp0ov) at the next clock, is cl eared to 0000h, and continues counting. at this time, the overflow flag (tp0opt0.tp0ovf bit) is also set to 1. clear the overflow flag to 0 by executing the clr instruction by software. figure 7-30. basic timing in free-r unning timer mode (capture function) ffffh 16-bit counter 0000h tp0ce bit tip00 pin input tp0ccr0 register inttp0cc0 signal tip01 pin input tp0ccr1 register inttp0cc1 signal inttp0ov signal tp0ovf bit d 00 d 01 d 02 d 03 d 10 d 00 d 01 d 02 d 03 d 11 d 12 d 13 d 10 d 11 d 12 d 13 cleared to 0 by clr instruction cleared to 0 by clr instruction cleared to 0 by clr instruction .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 269 figure 7-31. register setting in free-running timer mode (1/2) (a) tmp0 control re gister 0 (tp0ctl0) 0/1 0 0 0 0 tp0ctl0 select count clock note 0: stop counting 1: enable counting 0/1 0/1 0/1 tp0cks2 tp0cks1 tp0cks0 tp0ce note the setting is invalid when the tp0ctl1.tp0eee bit = 1 (b) tmp0 control register 1 (tp0ctl1) 0 0 0/1 0 0 tp0ctl1 101 tp0md2 tp0md1 tp0md0 tp0eee tp0est 1, 0, 1: free-running mode 0: operate with count clock selected by tp0cks0 to tp0cks2 bits 1: count on external event count input signal (c) tmp0 i/o control register 0 (tp0ioc0) 0 0 0 0 0/1 tp0ioc0 0: disable top00 pin output 1: enable top00 pin output setting of output level with operation of top00 pin disabled 0: low level 1: high level 0: disable top01 pin output 1: enable top01 pin output setting of output level with operation of top01 pin disabled 0: low level 1: high level 0/1 0/1 0/1 tp0oe1 tp0ol0 tp0oe0 tp0ol1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 270 figure 7-31. register setting in free-running timer mode (2/2) (d) tmp0 i/o control register 1 (tp0ioc1) 0 0 0 0 0/1 tp0ioc1 select valid edge of tip00 pin input select valid edge of tip01 pin input 0/1 0/1 0/1 tp0is2 tp0is1 tp0is0 tp0is3 (e) tmp0 i/o control register 2 (tp0ioc2) 0 0 0 0 0/1 tp0ioc2 select valid edge of external event count input 0/1 0 0 tp0ees0 tp0ets1 tp0ets0 tp0ees1 (f) tmp0 option register 0 (tp0opt0) 0 0 0/1 0/1 0 tp0opt0 overflow flag specifies if tp0ccr0 register functions as capture or compare register specifies if tp0ccr1 register functions as capture or compare register 0 0 0/1 tp0ccs0 tp0ovf tp0ccs1 (g) tmp0 counter read buffer register (tp0cnt) the value of the 16-bit counter can be read by reading the tp0cnt register. (h) tmp0 capture/compare regist ers 0 and 1 (tp0ccr0 and tp0ccr1) these registers function as captur e registers or compare registers depending on the setting of the tp0opt0.tp0ccsa bit. when the registers function as captur e registers, they store the count value of the 16-bit counter when the valid edge input to t he tip0a pin is detected. when the registers function as compare registers and when d a is set to the tp0ccra register, the inttp0cca signal is generated when the counter reaches (d a + 1), and the output signal of the top0a pin is inverted. remark a = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 271 (1) operation flow in free-running timer mode (a) when using capture/compare register as compare register figure 7-32. software processing flow in fr ee-running timer mode (c ompare function) (1/2) ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal top00 pin output tp0ccr1 register inttp0cc1 signal top01 pin output inttp0ov signal tp0ovf bit d 00 d 01 d 10 d 11 d 00 d 10 d 10 d 11 d 11 d 11 d 00 d 01 d 01 cleared to 0 by clr instruction cleared to 0 by clr instruction cleared to 0 by clr instruction <1> <2> <2> <2> <3> .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 272 figure 7-32. software processing flow in fr ee-running timer mode (c ompare function) (2/2) tp0ce bit = 1 read tp0opt0 register (check overflow flag). register initial setting tp0ctl0 register (tp0cks0 to tp0cks2 bits) tp0ctl1 register, tp0ioc0 register, tp0ioc2 register, tp0opt0 register, tp0ccr0 register, tp0ccr1 register initial setting of these registers is performed before setting the tp0ce bit to 1. the tp0cks0 to tp0cks2 bits can be set at the same time when counting has been started (tp0ce bit = 1). start execute instruction to clear tp0ovf bit (clr tp0ovf). <1> count operation start flow <2> overflow flag clear flow tp0ce bit = 0 counter is initialized and counting is stopped by clearing tp0ce bit to 0. stop <3> count operation stop flow tp0ovf bit = 1 no yes .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 273 (b) when using capture/compare register as capture register figure 7-33. software processing flow in fr ee-running timer mode (c apture function) (1/2) ffffh 16-bit counter 0000h tp0ce bit tip00 pin input tp0ccr0 register inttp0cc0 signal tip01 pin input tp0ccr1 register inttp0cc1 signal inttp0ov signal tp0ovf bit d 00 0000 0000 d 01 d 02 d 03 d 10 d 00 d 01 d 02 d 03 d 11 d 12 d 10 0000 d 11 d 12 0000 cleared to 0 by clr instruction cleared to 0 by clr instruction <3> <1> <2> <2> .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 274 figure 7-33. software processing flow in fr ee-running timer mode (c apture function) (2/2) tp0ce bit = 1 read tp0opt0 register (check overflow flag). register initial setting tp0ctl0 register (tp0cks0 to tp0cks2 bits) tp0ctl1 register, tp0ioc1 register, tp0opt0 register initial setting of these registers is performed before setting the tp0ce bit to 1. the tp0cks0 to tp0cks2 bits can be set at the same time when counting has been started (tp0ce bit = 1). start execute instruction to clear tp0ovf bit (clr tp0ovf). <1> count operation start flow <2> overflow flag clear flow tp0ce bit = 0 counter is initialized and counting is stopped by clearing tp0ce bit to 0. stop <3> count operation stop flow tp0ovf bit = 1 no yes .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 275 (2) operation timing in free-running timer mode (a) interval operation with compare register when 16-bit timer/event counter p is used as an interval timer with the tp0ccra register used as a compare register, software processing is necessary for setting a comparison value to generate the next interrupt request signal each time the inttp0cca signal has been detected. ffffh 16-bit counter 0000h tp0ce bit tp0ccr0 register inttp0cc0 signal top00 pin output tp0ccr1 register inttp0cc1 signal top01 pin output d 00 d 01 d 02 d 03 d 04 d 05 d 10 d 00 d 11 d 01 d 12 d 04 d 13 d 02 d 03 d 11 d 10 d 12 d 13 d 14 interval period (d 10 + 1) interval period (10000h + d 11 ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 276 (b) pulse width measurement with capture register when pulse width measurement is performed with the tp0ccra register used as a capture register, software processing is necessary for reading the capt ure register each time the inttp0cca signal has been detected and for calculating an interval. ffffh 16-bit counter 0000h tp0ce bit tip00 pin input tp0ccr0 register inttp0cc0 signal tip01 pin input tp0ccr1 register inttp0cc1 signal inttp0ov signal tp0ovf bit 0000h d 00 d 01 d 02 d 03 d 04 d 10 d 00 d 11 d 01 d 12 d 04 d 13 d 02 d 03 d 10 0000h d 11 d 12 d 13 pulse interval (d 00 ) pulse interval (10000h + d 01 ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 277 (c) processing of overflow when two capture registers are used care must be exercised in processing the overflow flag when two capture registers are used. first, an example of incorrect processing is shown below. example of incorrect processing when two capture regi sters are used ffffh 16-bit counter 0000h tp0ce bit tip00 pin input tp0ccr0 register tip01 pin input tp0ccr1 register inttp0ov signal tp0ovf bit d 00 d 01 d 10 d 11 d 10 <1> <2> <3> <4> d 00 d 11 d 01 the following problem may occur when two pulse widt hs are measured in the free-running timer mode. <1> read the tp0ccr0 register (setting of t he default value of the tip00 pin input). <2> read the tp0ccr1 register (setting of t he default value of the tip01 pin input). <3> read the tp0ccr0 register. read the overflow flag. if the overflow flag is 1, clear it to 0. because the overflow flag is 1, the pulse width can be calculated by (10000h + d 01 ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 278 (1/2) example when two capture registers are used (usi ng overflow interrupt) ffffh 16-bit counter 0000h tp0ce bit inttp0ov signal tp0ovf bit tp0ovf0 flag note tip00 pin input tp0ccr0 register tp0ovf1 flag note tip01 pin input tp0ccr1 register d 10 d 11 d 00 d 01 d 10 <1> <2> <5> <6> <3> <4> d 00 d 11 d 01 note the tp0ovf0 and tp0ovf1 flags are set on the internal ram by software. <1> read the tp0ccr0 register (setting of t he default value of the tip00 pin input). <2> read the tp0ccr1 register (setting of t he default value of the tip01 pin input). <3> an overflow occurs. set the tp0ovf0 and tp0ovf 1 flags to 1 in the overflow interrupt servicing, and clear the overflow flag to 0. <4> read the tp0ccr0 register. read the tp0ovf0 flag. if the tp0ovf0 flag is 1, clear it to 0. because the tp0ovf0 flag is 1, the pulse width can be calculated by (10000h + d 01 ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 279 (2/2) example when two capture re gisters are used (without using overflow interrupt) ffffh 16-bit counter 0000h tp0ce bit inttp0ov signal tp0ovf bit tp0ovf0 flag note tip00 pin input tp0ccr0 register tp0ovf1 flag note tip01 pin input tp0ccr1 register d 10 d 11 d 00 d 01 d 10 <1> <2> <5> <6> <3> <4> d 00 d 11 d 01 note the tp0ovf0 and tp0ovf1 flags are set on the internal ram by software. <1> read the tp0ccr0 register (setting of t he default value of the tip00 pin input). <2> read the tp0ccr1 register (setting of t he default value of the tip01 pin input). <3> an overflow occurs. nothing is done by software. <4> read the tp0ccr0 register. read the overflow flag. if the overflow flag is 1, set only the tp0ovf1 flag to 1, and clear the overflow flag to 0. because the overflow flag is 1, the pulse width can be calculated by (10000h + d 01 ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 280 (d) processing of overflow if capture trigger interval is long if the pulse width is greater than one cycle of the 16- bit counter, care must be exercised because an overflow may occur more than once from the first captur e trigger to the next. first, an example of incorrect processing is shown below. example of incorrect processing when capture trigger interval is long ffffh 16-bit counter 0000h tp0ce bit tip0a pin input tp0ccra register inttp0ov signal tp0ovf bit d a0 d a1 d a0 d a1 <1> <2> <3> <4> 1 cycle of 16-bit counter pulse width the following problem may occur when long pulse width is measured in the free-running timer mode. <1> read the tp0ccra register (setting of t he default value of the tip0a pin input). <2> an overflow occurs. nothing is done by software. <3> an overflow occurs a second time. nothing is done by software. <4> read the tp0ccra register. read the overflow flag. if the overflow flag is 1, clear it to 0. because the overflow flag is 1, the pul se width can be calculated by (10000h + d a1 ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 281 example when capture trigger interval is long ffffh 16-bit counter 0000h tp0ce bit tip0a pin input tp0ccra register inttp0ov signal tp0ovf bit overflow counter note d a0 d a1 1h 0h 2h 0h d a0 d a1 <1> <2> <3> <4> 1 cycle of 16-bit counter pulse width note the overflow counter is set arbitrarily by software on the internal ram. <1> read the tp0ccra register (setting of t he default value of the tip0a pin input). <2> an overflow occurs. increment the overflow count er and clear the overflow flag to 0 in the overflow interrupt servicing. <3> an overflow occurs a second time. increment (+1) the overflow counter and clear the overflow flag to 0 in the overflow interrupt servicing. <4> read the tp0ccra register. read the overflow counter. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 282 (e) clearing overflow flag the overflow flag can be cleared to 0 by clearing th e tp0ovf bit to 0 with the clr instruction and by writing 8-bit data (bit 0 is 0) to the tp0opt0 regist er. to accurately detect an overflow, read the tp0ovf bit when it is 1, and then clear the overflow flag by using a bit manipulation instruction. (i) operation to write 0 (without conflict with setting) (iii) operation to clear to 0 (without conflict with setting) (ii) operation to write 0 (conflict with setting) (iv) operation to clear to 0 (conflict with setting) 0 write signal overflow set signal register access signal overflow flag (tp0ovf bit) read write 0 write signal overflow set signal register access signal overflow flag (tp0ovf bit) read write 0 write signal overflow set signal 0 write signal overflow set signal overflow flag (tp0ovf bit) overflow flag (tp0ovf bit) l h l to clear the overflow flag to 0, read the overflow flag to check if it is set to 1, and clear it with the clr instruction. if 0 is written to the overflow flag wit hout checking if the flag is 1, the set information of overflow may be erased by writing 0 ((ii) in the above chart). therefore, software may judge that no overflow has occurred even when an overflow actually has occurred. if execution of the clr instruction conflicts with occurrence of an over flow when the overflow flag is cleared to 0 with the clr instruction, the overflow flag remains set even after execution of the clear instruction. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 283 7.5.7 pulse width measurement mode (tp0md2 to tp0md0 bits = 110) in the pulse width measurement mode, 16-bit timer/event counter p starts counting when the tp0ctl0.tp0ce bit is set to 1. each time the valid edge input to the tip0a pi n has been detected, the count va lue of the 16-bit counter is stored in the tp0ccra register, and the 16-bit counter is cleared to 0000h. the interval of the valid edge can be measured by readin g the tp0ccra register after a capture interrupt request signal (inttp0cca) occurs. select either the tip00 or tip01 pin as the capture trigger input pin. specify ?no edge detected? by using the tp0ioc1 register for the unused pins. when an external clock is used as the count clock, measur e the pulse width of the tip01 pin because the external clock is fixed to the tip00 pin. at this time, clear the tp0ioc1.tp0is1 and tp0ioc1.tp0is0 bits to 00 (capture trigger input (tip00 pin): no edge detected). figure 7-34. configuration in pulse width measurement mode tp0ccr0 register (capture) tp0ce bit tp0ccr1 register (capture) edge detector count clock selection edge detector edge detector tip00 pin (external event count input/capture trigger input) tip01 pin (capture trigger input) internal count clock clear inttp0ov signal inttp0cc0 signal inttp0cc1 signal 16-bit counter digital noise eliminator digital noise eliminator remark a = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 284 figure 7-35. basic timing in pulse width measurement mode ffffh 16-bit counter 0000h tp0ce bit tip0a pin input tp0ccra register inttp0cca signal inttp0ov signal tp0ovf bit d 0 0000h d 1 d 2 d 3 cleared to 0 by clr instruction remark a = 0, 1 when the tp0ce bit is set to 1, the 16-bit counter starts counting. when the valid edge input to the tip0a pin is later detected, the count value of the 16-bit counter is stored in the tp0ccra register, the 16-bit counter is cleared to 0000h, and a capture interrupt request signal (inttp0cca) is generated. the pulse width is calculated as follows. first pulse width = (d 0 + 1) count clock cycle second and subsequent pulse width = (d n ? d n ? 1 ) count clock cycle if the valid edge is not input to the tip0a pin even wh en the 16-bit counter counted up to ffffh, an overflow interrupt request signal (inttp0ov) is generated at the next count clock, and the counter is cleared to 0000h and continues counting. at this time, the overflow flag (tp0opt0.t p0ovf bit) is also set to 1. clear the overflow flag to 0 by executing the clr instruction via software. if the overflow flag is set to 1, the pu lse width can be calculated as follows. first pulse width = (d 0 + 10001h) count clock cycle second and subsequent pulse width = (10000h + d n ? d n ? 1 ) count clock cycle remark a = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 285 figure 7-36. register setting in pu lse width measurement mode (1/2) (a) tmp0 control re gister 0 (tp0ctl0) 0/1 0 0 0 0 tp0ctl0 select count clock note 0: stop counting 1: enable counting 0/1 0/1 0/1 tp0cks2 tp0cks1 tp0cks0 tp0ce note setting is invalid when the tp0eee bit = 1. (b) tmp0 control register 1 (tp0ctl1) 0 0 0/1 0 0 tp0ctl1 110 tp0md2 tp0md1 tp0md0 tp0eee tp0est 1, 1, 0: pulse width measurement mode 0: operate with count clock selected by tp0cks0 to tp0cks2 bits 1: count external event count input signal (c) tmp0 i/o control register 1 (tp0ioc1) 0 0 0 0 0/1 tp0ioc1 select valid edge of tip00 pin input select valid edge of tip01 pin input 0/1 0/1 0/1 tp0is2 tp0is1 tp0is0 tp0is3 (d) tmp0 i/o control register 2 (tp0ioc2) 0 0 0 0 0/1 tp0ioc2 select valid edge of external event count input 0/1 0 0 tp0ees0 tp0ets1 tp0ets0 tp0ees1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 286 figure 7-36. register setting in pu lse width measurement mode (2/2) (e) tmp0 option register 0 (tp0opt0) 00000 tp0opt0 overflow flag 0 0 0/1 tp0ccs0 tp0ovf tp0ccs1 (f) tmp0 counter read buffer register (tp0cnt) the value of the 16-bit counter can be read by reading the tp0cnt register. (g) tmp0 capture/compare regist ers 0 and 1 (tp0ccr0 and tp0ccr1) these registers store the count valu e of the 16-bit counter when the valid edge input to the tip0a pin is detected. remarks 1. tmp0 i/o control register 0 (tp0ioc0) is not used in the pulse wid th measurement mode. 2. a = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 287 (1) operation flow in pul se width measurement mode figure 7-37. software processing flow in pulse width measurement mode <1> <2> set tp0ctl0 register (tp0ce bit = 1) tp0ce bit = 0 register initial setting tp0ctl0 register (tp0cks0 to tp0cks2 bits), tp0ctl1 register, tp0ioc1 register, tp0ioc2 register, tp0opt0 register initial setting of these registers is performed before setting the tp0ce bit to 1. the tp0cks0 to tp0cks2 bits can be set at the same time when counting has been started (tp0ce bit = 1). the counter is initialized and counting is stopped by clearing the tp0ce bit to 0. start stop <1> count operation start flow <2> count operation stop flow ffffh 16-bit counter 0000h tp0ce bit tip00 pin input tp0ccr0 register inttp0cc0 signal d 0 0000h 0000h d 1 d 2 .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 288 (2) operation timing in pul se width measurement mode (a) clearing overflow flag the overflow flag can be cleared to 0 by clearing th e tp0ovf bit to 0 with the clr instruction and by writing 8-bit data (bit 0 is 0) to the tp0opt0 regist er. to accurately detect an overflow, read the tp0ovf bit when it is 1, and then clear the overflow flag by using a bit manipulation instruction. (i) operation to write 0 (without conflict with setting) (iii) operation to clear to 0 (without conflict with setting) (ii) operation to write 0 (conflict with setting) (iv) operation to clear to 0 (conflict with setting) 0 write signal overflow set signal register access signal overflow flag (tp0ovf bit) read write 0 write signal overflow set signal register access signal overflow flag (tp0ovf bit) read write 0 write signal overflow set signal 0 write signal overflow set signal overflow flag (tp0ovf bit) overflow flag (tp0ovf bit) l h l to clear the overflow flag to 0, read the overflow flag to check if it is set to 1, and clear it with the clr instruction. if 0 is written to the overflow flag wit hout checking if the flag is 1, the set information of overflow may be erased by writing 0 ((ii) in the above chart). therefore, software may judge that no overflow has occurred even when an overflow actually has occurred. if execution of the clr instruction conflicts with occurrence of an over flow when the overflow flag is cleared to 0 with the clr instruction, the overflow flag remains set even after execution of the clear instruction. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 289 7.5.8 timer output operations the following table shows the operations and out put levels of the top00 and top01 pins. table 7-4. timer output control in each mode operation mode top01 pin top00 pin interval timer mode square wave output external event count mode square wave output ? ? .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 290 7.6 eliminating noise on captur e trigger input pin (tip0a) the tip0a pin has a digital noise eliminator. however, this circuit is valid only when the pin is used as a capture trigger input pin; it is invalid when the pin is used as an external event count input pin or external trigger input pin. digital noise can be eliminated by specifying the alter nate function of the tip0a pi n using the pmc3, pfc3, and pfce3 registers. the number of times of sampling can be selected from three or two by using the panfc.panfsts bit. the sampling clock can be selected from f xx , f xx /2, f xx /4, f xx /16, f xx /32, or f xx /64, by using the panfc.panfc2 to panfc.panfc0 bits. (1) tip0a noise elimination control register (panfc) this register is used to select the sampling clock and t he number of times of sampling for eliminating digital noise. this register can be read or written in 8-bit or 1-bit units. reset input clears this register to 00h. 0 panfc (a = 0, 1) panfsts 0 0 0 panfc2 panfc1 panfc0 number of times of sampling = 3 number of times of sampling = 2 panfsts 0 1 setting of number of times of sampling for eliminating digital noise after reset: 00h r/w address: p0nfc fffffb00h, p1nfc fffffb04h f xx f xx /2 f xx /4 f xx /16 f xx /32 f xx /64 panfc2 0 0 0 0 1 1 panfc1 0 0 1 1 0 0 panfc0 0 1 0 1 0 1 sampling clock selection setting prohibited other than above cautions 1. enable starting the 16-bit counter of tmp0 (tp0ctl.tp0ce bit = 1) after the lapse of the sampling clock period .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 291 <1> select the number of times of sampling a nd the sampling clock by using the panfc register. <2> select the alternate function (of the tip0a pin) by using the pmc3, pfc3, and pfce3 registers. <3> set the operating mode of tmp0 (such as the capt ure mode or the valid edge of the capture trigger). <4> enable the tmp0 count operation. the digital noise elimination width (t wtip0a ) is as follows, where t is the sampling clock period and m is the number of times of sampling. ? t wtip0a < (m ? 1)t: accurately eliminated as noise ? (m ? 1)t t wtip0a < mt: eliminated as noise or detected as valid edge ? t wtip0a mt: accurately detected as valid edge therefore, a pulse width of mt or lo nger must be input so that the valid edge of the capture trigger input can be accurately detected. .com .com .com .com 4 .com u datasheet
chapter 7 16-bit timer/event counter p (tmp) preliminary user?s manual u16894ej1v0ud 292 7.7 cautions (1) capture operation when the capture operation is used and a slow clock is selected as the count clock, ffffh, not 0000h, may be captured in the tp0ccrn register if the capture trigger is input immediately after the tp0ce bit is set to 1. (a) free-running timer mode count clock 0000h ffffh tp0ce bit tp0ccr0 register ffffh 0001h 0000h tip00 pin input capture trigger input 16-bit counter sampling clock capture trigger input (b) pulse width measurement mode 0000h ffffh ffffh 0002h 0000h count clock tp0ce bit tp0ccr0 register tip00 pin input capture trigger input 16-bit counter sampling clock capture trigger input .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 293 chapter 8 16-bit timer/event counter 0 in the v850es/kg1+, four channels of 16-bi t timer/event counter 0 are provided. 8.1 functions 16-bit timer/event counter 0n has the following functions (n = 0 to 3). (1) interval timer generates an interrupt at predetermined time intervals. (2) ppg output can output a rectangular wave with any frequency and any output pulse width. (3) pulse width measurement can measure the pulse width of a signal input from an external source. (4) external event counter can measure the pulse width of a signal input from an external source. (5) square-wave output can output a square wave of any frequency. (6) one-shot pulse output can output a one-shot pulse with any output pulse width. 8.2 configuration 16-bit timer/event counter 0n consis ts of the following hardware. table 8-1. configuration of 16- bit timer/event counter 0n item configuration timer/counters 16-bi t timer counter 0n 1 (tm0n) registers 16-bit timer captur e/compare register: 16 bits 2 (cr0n0, cr0n1) timer inputs 2 (ti0n0, ti0n1 pins) timer outputs 1 (to0n pin), output controller control registers note 16-bit timer mode control register n (tmc0n) capture/compare control register n (crc0n) 16-bit timer output control register n (toc0n) prescaler mode register 0n (prm0n) selector operation control register 1 (selcnt1) note to use the ti0n0, ti0n1, and to0n pin functions, refer to table 4-16 settings when port pins are used for alternate functions . remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 294 the block diagram is shown below. figure 8-1. block diagram of 16- bit timer/event counter 0n inttm0n0 to0n inttm0n1 tl0n1 f xx /4 tl0n0 2 crc0n2 crc0n2 crc0n1 crc0n0 tmc0n3 tmc0n2 tmc0n1 ovf0n ospt0n ospe0n toc0n4 lvs0n lvr0n toc0n1 toe0n match clear noise eliminator noise eliminator 16-bit timer capture/compare register 0n0 (cr0n0) 16-bit timer capture/compare register 0n1 (cr0n1) 16-bit timer counter 0n (tm0n) match internal bus count clock note capture/compare control register 0n (crc0n) output controller selector timer output control register 0n (toc0n) noise eliminator 16-bit timer mode control register 0n (tmc0n) selector selector internal bus selector prescaler mode register 0n (prm0n) selector operation control register 1 (selcnt1) prm0n1 isel1n prm0n0 note set by the prm0n register and selcnt1 register. remarks 1. n = 0 to 3 2. f xx : main clock frequency .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 295 (1) 16-bit timer counter 0n (tm0n) the tm0n register is a 16-bit read-onl y register that counts count pulses. the counter is incremented in synchronization with the rising edge of the input clock. tm0n (n = 0 to 3) 12 10 8 6 4 2 after reset: 0000h r address: tm00 fffff600h, tm01 fffff610h, tm02 fffff620h, tm03 fffff630h 14 0 13 11 9 7 5 3 15 1 the count value is reset to 0000h in the following cases. <1> reset <2> if the tmc0n.tmc0n3 and tmc0n.tmc0n2 bits are cleared (0). <3> if the valid edge of the ti0n0 pin is input in the mode in which clear & start occurs when inputting the valid edge of the ti0n0 pin <4> if the tm0n register and the cr0n0 register match eac h other in the mode in which clear & start occurs on a match between the tm0n register and the cr0n0 register <5> if the toc0n.ospt0n bit is set (1) or if the valid edge of the ti0n0 pin is input in the one-shot pulse output mode remark n = 0 to 3 (2) 16-bit timer capture/comp are register 0n0 (cr0n0) the cr0n0 register is a 16-bit register that combines capture register and compare register functions. the crc0n.crc0n0 bit is used to set whether to use the cr0n0 register as a ca pture register or as a compare register. the cr0n0 register can be read or written in 16-bit units. after reset, this register is cleared to 0000h. cr0n0 (n = 0 to 3) 12 10 8 6 4 2 after reset: 0000h r/w address: cr000 fffff602h, cr010 fffff612h, cr020 fffff622h, cr030 fffff632h 14 0 13119753 15 1 (a) when using the cr0n0 register as a compare register the value set to the cr0n0 register and the count value set to the tm0n register are always compared and when these values match, an interrupt request si gnal (inttm0n0) is generated. the values are retained until rewritten. .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 296 (b) when using the cr0n0 regist er as a capture register the tm0n register count value is captured to the cr0n0 register by inputting a capture trigger. the valid edge of the ti0n0 pin or ti0n1 pin can be selected as the captur e trigger. the valid edge of the ti0n0 pin is set with the prm0n.esn 01 and prm0n.esn00 bits. the va lid edge of the ti0n1 pin is set with the prm0n.esn11 and prm0n.esn10 bits. table 8-2 shows the settings when the valid edge of the ti0n0 pin is specified as the capture trigger, and table 8-3 shows the settings when the valid edge of t he ti0n1 is specified as the capture trigger. table 8-2. capture trigger of cr0n0 register and valid edge of ti0n0 pin capture trigger of cr0n0 valid edge of ti0n0 pin esn01 esn00 falling edge rising edge 0 1 rising edge falling edge 0 0 no capture operation both rising and falling edges 1 1 remarks 1. n = 0 to 3 2. setting the esn01 and esn00 bits to 10 is prohibited. table 8-3. capture trigger of cr0n0 register and valid edge of ti0n1 pin capture trigger of cr0n0 valid edge of ti0n1 pin esn11 esn10 falling edge falling edge 0 0 rising edge rising edge 0 1 both rising and falling edges both rising and falling edges 1 1 remarks 1. n = 0 to 3 2. setting the esn11 and esn10 bits to 10 is prohibited. cautions 1. set a value other than 0000h to the cr0n0 register in the mode in which clear & start occurs upon a match of the values of th e tm0n register and cr0n0 register. however, if 0000h is set to th e cr0n0 register in the fr ee-running timer mode or the ti0n0 pin valid edge clear & start mode, an interrupt request signal (inttm0n0) is generated when the value cha nges from 0000h to 0001h afte r an overflow (ffffh). 2. when the p33, p35, p92, and p94 pins are used as the valid edges of ti000, ti010, ti020, and ti030, and the timer output function is used, set the p34, p32, p30, and p31 pins as the timer output pins (to00 to to03). 3. if, when the cr0n0 register is used as a capture register, the re gister read interval and capture trigger input conflict, the read data becomes undefined (but the capture data itself is normal). moreover, when the count stop input and capture trigger input conflict, the capture data becomes undefined. 4. the cr0n0 register cannot be rewr itten during timer count operation. .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 297 (3) 16-bit timer capture/comp are register 0n1 (cr0n1) the cr0n1 register is a 16-bit register that combines capture register and compare register functions. the crc0n.crc0n2 bit is used to set whether to use the cr0n1 register as a capture re gister or as a compare register. the cr0n1 register can be read or written in 16-bit units. after reset, this register is cleared to 0000h. cr0n1 (n = 0 to 3) 12 10 8 6 4 2 after reset: 0000h r/w address: cr001 fffff604h, cr011 fffff614h, cr021 fffff624h, cr031 fffff634h 14 0 13 11 9 7 5 3 15 1 (a) when using the cr0n1 register as a compare register the value set to the cr0n1 regist er and the count value of the tm 0n register are always compared and when these values match, an interrupt re quest signal (inttm0n1) is generated. (b) when using the cr0n1 regist er as a capture register the tm0n register count value is captured to the cr0n1 register by inputting a capture trigger. the valid edge of the ti0n0 pin can be selected as the capture trigger. the valid edge of the ti0n0 pin is set with the prm0n.esn01 and prm0n.esn00 bits. table 8-4 shows the settings when the valid edge of t he ti0n0 pin is specified as the capture trigger. table 8-4. capture trigger of cr0n1 register and valid edge of ti0n0 pin capture trigger of cr0n1 valid edge of ti0n0 pin esn01 esn00 falling edge falling edge 0 0 rising edge rising edge 0 1 both rising and falling edges both rising and falling edges 1 1 remarks 1. n = 0 to 3 2. setting the esn01 and esn00 bits to 10 is prohibited. cautions 1. if 0000h is set to the cr0n1 regist er, an interrupt request signal (inttm0n1) is generated after overflow of the tm0n regi ster, after clear & start on a match between the tm0n register and cr0n0 register, after clear by the valid edge of the ti0n0 pin, or after clear by a one-shot pulse output trigger. 2. when the p33, p35, p92, and p94 pins are used as the valid edges of ti000, ti010, ti020, and ti030, and the timer output function is used, set the p34, p32, p30, and p31 pins as the timer output pins (to00 to to03). 3. if, when the cr0n1 register is used as a capture register, the re gister read interval and capture trigger input conflict, the read data becomes undefined (but the capture data itself is normal). moreover, when the count stop input and capture trigger input conflict, the capture data becomes undefined. 4. the cr0n1 register can be rewritten dur ing tm0n register operation only in the ppg output mode. refer to 8.4.2 ppg output operation. .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 298 8.3 registers the registers that control 16-bit time r/event counter 0n are as follows. ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 299 7 0 operation stop (tm0n cleared to 0) free-running timer mode clear & start with valid edge of ti0n0 clear & start upon match of tm0n and cr0n0 unchanged match of tm0n and cr0n0 or match of tm0n and cr0n1 match of tm0n and cr0n0, match of tm0n and cr0n1, or valid edge of ti0n0 match of tm0n and cr0n0 or match of tm0n and cr0n1 match of tm0n and cr0n0, match of tm0n and cr0n1, or valid edge of ti0n0 match of tm0n and cr0n0 or match of tm0n and cr0n1 match of tm0n and cr0n0, match of tm0n and cr0n1, or valid edge of ti0n0 not generated generated upon match of tm0n and cr0n0 and match of tm0n and cr0n1 tmc0n3 0 0 0 0 1 1 1 1 selection of operation mode and clear mode selection of to0n output inverse timing (n = 0 to 3) 6 0 5 0 4 0 3 tmc0n3 2 tmc0n2 1 tmc0n1 note <0> ovf0n tmc0n2 0 0 1 1 0 0 1 1 tmc0n1 note 0 1 0 1 0 1 0 1 after reset: 00h r/w address: tmc00 fffff606h, tmc01 fffff616h, tmc02 fffff626h, tmc03 fffff636h no overflow overflow ovf0n 0 1 detection of overflow of 16-bit timer register 0n tmc0n generation of interrupt note be sure to clear the tmc0n1 bit to 0 when the to0n pin and ti0n0 pin are used alternately. cautions 1. write to bits other than the ov f0n flag after stopping the timer operation. 2. the valid edge of the ti0n0 pi n is set by the prm0n register. 3. when the mode in which the timer is cleared and star ted upon match of tm0n and cr0n0 is selected, the setting value of cr0n0 is ffffh, and when the value of tm0n changes from ffffh to 0000h, the ovf0n flag is set to 1. remark to0n: output pin of 16-b it timer/event counter 0n ti0n0: input pin of 16-bit timer/event counter 0n tm0n: 16-bit timer counter 0n cr0n0: 16-bit timer capture/compare register 0n0 cr0n1: 16-bit timer capture/compare register 0n1 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 300 (2) capture/compare control register 0n (crc0n) the crc0n register controls the operation of the cr0n0 and cr0n1 registers. the crc0n register can be read or written in 8-bit or 1-bit units. after reset, crc0n is cleared to 00h. 7 0 operation as compare register operation as capture register crc0n2 0 1 selection of operation mode of cr0n1 register crc0n 6 0 5 0 4 0 3 0 2 crc0n2 1 crc0n1 0 crc0n0 after reset: 00h r/w address: crc00 fffff608h, crc01 fffff618h, crc02 fffff628h, crc03 fffff638h capture at valid edge of ti0n1 pin capture at inverse phase of valid edge of ti0n0 pin crc0n1 0 1 selection of capture trigger of cr0n0 register operation as compare register operation as capture register crc0n0 0 1 selection of operation mode of cr0n0 register (n = 0 to 3) cautions 1. before setting the crc0n regist er, be sure to stop the timer operation. 2. when the mode in which the timer is cleared and started upon match of the tm0n register and cr0n0 register is selected by the tmc0n register, do not specify the cr0n0 register as the capture register. 3. when both the rising and falling edges ar e specified for the ti 0n0 pin valid edge, capture operation is not performed. 4. to ensure reliable capture operation, a pulse longer than tw o cycles of the count clock selected by the prm0n and sel cnt1 registers is required. .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 301 (3) 16-bit timer output control register 0n (toc0n) the toc0n register controls the operation of the 16-bit timer/event counter 0n output controller by setting or resetting the timer output f/f, enabling or disabling inve rse output, enabling or disabling the timer of 16-bit timer/event counter 0n, enabling or disabling the one-shot pulse output operation, and selecting an output trigger for a one-shot pulse by software. the toc0n register can be read or written in 8-bit or 1-bit units. after reset, toc0n is cleared to 00h. (1/2) 0 ? one-shot pulse output ospt0n 0 1 output trigger for one-shot pulse by software toc0n ospt0n ospe0n toc0n4 lvs0n lvr0n toc0n1 toe0n successive pulse output one-shot pulse output note ospe0n 0 1 control of one-shot pulse output operation inversion operation disabled inversion operation enabled toc0n4 0 1 control of timer output f/f upon match of cr0n1 register and tm0n register after reset: 00h r/w address: toc00 fffff609h, toc01 fffff619h, toc02 fffff629h, toc03 fffff639h (n = 0 to 3) 7 <6> <5> 4 <3> <2> 1 <0> inversion operation disabled inversion operation enabled toc0n1 0 1 control of timer output f/f upon match of cr0n0 register and tm0n register output disabled (output is fixed to low level) output enabled toe0n 0 1 control of timer output unchanged reset timer output f/f (0) set timer output f/f (1) setting prohibited lvs0n 0 0 1 1 setting of status of timer output f/f lvr0n 0 1 0 1 note the one-shot pulse output operates normally in the free-running timer mode and the mode in which clear & start occurs on the valid edge of the ti0n0 pin. in the mode in which clear & start occurs on match between the tm0n register and the cr0n0 register, one-shot pulse output is not performed because no overflow occurs. .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 302 (2/2) cautions 1. be sure to stop the timer operat ion before setting other than the toc0n4 bit. 2. the lvs0n and lvr0n bits are 0 when read. 3. the ospt0n bit is 0 when read because it is automatically cleared after data has been set. 4. do not set the ospt0n bit (1) other than for one-shot pulse output. 5. when performing successive writes to the ospt0n bit, place an interval between writes of two or more cycles of the coun t clock selected by the prm0n register. 6. do not set the lvs0n bit (1) before setting the toe0n bit. do not set the lvs0n bit and toe0n bit (1) at the same time. 7. do not set <1> and <2> below at the same time. set as follows. <1> set the toc0n1, to c0n4, toe0n, and ospe0n bi ts: setting of timer output operation <2> set the lvs0n and lvr0n bits: setting of timer output f/f .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 303 (4) prescaler mode register 0n (prm0n) the prm0n register sets the count clock of the tm0n register and the valid edge of the ti0n0 and ti0n1 pin inputs. the prmn01 and prmn00 bits are set in combination with the selcnt1.isel1n bit. refer to 8.3 (6) count clock setting for 16-bit timer/event counter 0n for details. the prm0n register can be read or written in 8-bit or 1-bit units. after reset, prm0n is cleared to 00h. cautions 1. when setting the count clock to the ti 0n0 pin valid edge, do not set the mode in which clear & start occurs on ti0n0 pin valid edge and do not set the ti0n0 pin as a capture trigger. 2. before setting the pr m0n register, be sure to stop the timer operation. 3. if 16-bit timer/event counter 0n operation is enabled by specifying the rising edge of both edges for the valid edge of the ti0n0 pin or ti0n1 pin while the ti0n0 pin or ti0n1 pin is high level immediately after system reset, the rising edge is detected immediately after the rising edge or both edges is specified. be careful when pulling up the ti0n0 pin or ti0n1 pin. however, the rising edge is not detected when operation is enabled after it has been stopped. 4. when the p33, p35, p92, and p94 pins ar e used as the valid edg es of ti000, ti010, ti020, and ti030, and the timer output function is used, set the p34, p32, p30, and p31 pins as the timer output pins (to00 to to03). esn11 falling edge rising edge setting prohibited both rising and falling edges esn11 0 0 1 1 selection of valid edge of ti0n1 prm0n (n = 0 to 3) esn10 esn01 esn00 0 0 prmn01 prmn00 esn10 0 1 0 1 falling edge rising edge setting prohibited both rising and falling edges esn01 0 0 1 1 selection of valid edge of ti0n0 esn00 0 1 0 1 76 54 32 1 0 after reset: 00h r/w address: prm00 fffff607h, prm01 fffff617h, prm02 fffff627h, prm03 fffff637h .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 304 (5) selector operation control register 1 (selcnt1) the selcnt1 register sets the count cl ock of 16-bit timer/event counter 0n. the selcnt1 register can be read or written in 8-bit or 1-bit units. after reset, selcnt1 is cleared to 00h. the selcnt1 register is set in combination with t he prm0n.prmn01 and prm0n.prmn00 bits. refer to 8.3 (6) count clock setting for 16-bit timer/event counter 0n for details. 0 selcnt1 0 0 0 isel13 isel12 isel11 isel10 after reset: 00h r/w address: fffff30ah 76 54 32 1 0 (6) count clock setting for 16- bit timer/event counter 0n the count clock for 16-bit timer/event counter 0n is set by using the prm0n.prmn01, prm0n.prmn00, and selcnt1.isel1n bits in combination. (a) count clock for 16-bit timer/event counters 00 and 02 selcnt1 register prm0n register selection of count clock note 1 isel1n bit prm0n1 bit prm0n0 bit count clock f xx = 20 mhz f xx = 16 mhz f xx = 10 mhz 0 0 0 f xx /2 100 ns 125 ns 200 ns 0 0 1 f xx /4 200 ns 250 ns 400 ns 0 1 0 f xx /8 400 ns 500 ns 800 ns 0 1 1 valid edge of ti0n0 note 2 ? ? ? .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 305 (b) count clock for 16-bit timer/event counter 01 selcnt1 register prm01 register selection of count clock note 1 isel11 bit prm011 bit prm010 bit count clock f xx = 20 mhz f xx = 16 mhz f xx = 10 mhz 0 0 0 f xx setting prohibited setting prohibited 100 ns 0 0 1 f xx /4 200 ns 250 ns 400 ns 0 1 0 intwt ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 306 8.4 operation 8.4.1 operation as interval timer 16-bit timer/event counter 0n can be m ade to operate as an interval timer by setting the tmc0n register and the crc0n register as shown in figure 8-2. setting procedure the basic operation setting procedure is as follows. <1> set the count clock using the pr m0n register and the selcnt1 register. <2> set the crc0n register (refer to figure 8-2 for the setting value). <3> set any value to the cr0n0 register. <4> set the tmc0n register: start operation (refer to figure 8-2 for the setting value). caution the cr0n0 register cannot be rewritten during 16-bit time r/event counter 0n operation. remarks 1. for the alternate-function pin settings, refer to table 4-16 settings when port pins are used for alternate functions . 2. for inttm0n0 interrupt enable, refer to chapter 21 interrupt/exception processing function . the interval timer repeatedly generates in terrupts at the interval of the preset count value in the cr0n0 register. if the count value in the tm0n register matches the value set in the cr0n0 register, an interrupt request signal (inttm0n0) is generated at the same time that the value of the tm 0n register is cleared to 0000h and counting is continued. the count clock of 16-bit timer/event counter 0n can be selected with the prm 0n.prm0n0, prm0n.prm0n1, and selcnt1.isel1n bits. remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 307 figure 8-2. control register setting cont ents during interval timer operation (a) 16-bit timer mode cont rol register 0n (tmc0n) 0 tmc0n 000110/1 note 0 tmc0n3 tmc0n2 tmc0n1 ovf0n clears & starts upon match between tm0n and cr0n0 (b) capture/compare cont rol register 0n (crc0n) 0 crc0n 00000/10/10 crc0n2 crc0n1 crc0n0 cr0n0 used as compare register note be sure to clear the tmc0n1 bit to 0 when the to0n pin and ti0n0 pin are used alternately. remarks 1. 0/1: when these bits are reset to 0 or set to 1, other functions can be used together with the interval timer function. for details, refer to 8.3 (1) 16-bit timer mode control register 0n (tmc0n) and 8.3 (2) capture/compare control register 0n (crc0n) . 2. n = 0 to 3 figure 8-3. configuration of interval timer 16-bit timer capture/compare register 0n0 (cr0n0) 16-bit timer counter 0n (tm0n) selector ovf0n inttm0n0 count clock note ti0n0 clear circuit noise eliminator f xx /4 note set with prm0n register and selcnt1 register. remarks 1. f xx : main clock frequency 2. n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 308 figure 8-4. timing of interval timer operation t interval time interval time 0000h n 0001h 0001h 0000h nn n n n n 0001h 0000h clear interrupt acknowledgment interrupt acknowledgment clear count clock tm0n count value cr0n0 inttm0n0 timer operation enable remarks 1. interval time = (n + 1) .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 309 8.4.2 ppg output operation 16-bit timer/event counter 0n can be used for ppg (progr ammable pulse generator) ou tput by setting the tmc0n register and the crc0n register as shown in figure 8-5. setting procedure the basic operation setting procedure is as follows. <1> set the crc0n register (refer to figure 8-5 for the setting value). <2> set any value as a cycle to the cr0n0 register. <3> set any value as a duty to the cr0n1 register. <4> set the toc0n register (refer to figure 8-5 for the setting value). <5> set the count clock using the prm0n register and selcnt1 register. <6> set the tmc0n register: start operation (refer to figure 8-5 for the setting value). caution to change the duty value (cr0 n1 register) during operation, refe r to remark 2 in figure 8-7 ppg output operation timing. remarks 1. for the alternate-function pin (to0n) settings, refer to table 4-16 settings when port pins are used for alternate functions . 2. for inttm0n0 interrupt enable, refer to chapter 21 interrupt/exception processing function . the ppg output function outputs a rectangular wave from the to0n pin with the cycle s pecified by the count value set in advance to the cr0n0 register and the pulse width s pecified by the count value set in advance to the cr0n1 register. .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 310 figure 8-5. control register settings in ppg output operation (a) 16-bit timer mode cont rol register 0n (tmc0n) 00001 tmc0n3 tmc0n tmc0n2 tmc0n1 ovf0n clears and starts upon match between tm0n and cr0n0 100 (b) capture/compare cont rol register 0n (crc0n) 00000 crc0n crc0n2 crc0n1 crc0n0 cr0n0 used as compare register cr0n1 used as compare register 0 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 311 figure 8-6. configuration of ppg output f xx /4 ti0n0 to0n 16-bit capture/compare register 0n1 (cr0n1) 16-bit capture/compare register 0n0 (cr0n0) count clock note selector noise eliminator 16-bit timer counter 0n (tm0n) clear circuit output controller note the count clock is set by the prm0n register and selcnt1 register. remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 312 figure 8-7. ppg output operation timing t 0000h 0000h 0001h 0001h m ? ? .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 313 8.4.3 pulse width measurement the tm0n register can be used to meas ure the pulse widths of the signals input to the ti0n0 and ti0n1 pins. measurement can be carried out with 16-b it timer/event counter 0n used in the free-running timer mode or by restarting the timer in synchronization with the edge of the signal input to the ti0n0 pin. when an interrupt is generated, read the valid capture re gister value. after confi rming the tmc0n.ovf0n flag, clear it (0) by software and measure the pulse width. setting procedure the basic operation setting procedure is as follows. <1> set the crc0n register (refer to figures 8-9 , 8-12 , 8-14 , and 8-16 for the setting value). <2> set the count clock using the prm0n register and selcnt1 register. <3> set the tmc0n register: start operation (refer to figures 8-9 , 8-12 , 8-14 , and 8-16 for the setting value). caution when using two capture regist ers, set the ti0n0 and ti0n1 pins. remarks 1. for the alternate-function pin (ti0n0, ti0n1) settings, refer to table 4-16 settings when port pins are used for alternate functions . 2. for inttm0n0 and inttm0n1 interrupt enable, refer to chapter 21 interrupt/exception processing function . figure 8-8. cr0n1 capture operati on with rising edge specified n ? ? ? .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 314 (1) pulse width measurement with free-running timer operation and one capture register if the edge specified by the prm0n regi ster is input to the ti0n0 pin when 16-bit timer/event counter 0n is operated in the free-running timer mode (refer to figure 8-9 ), the value of the tm0n register is loaded to the cr0n1 register and an external interrupt request signal (inttm0n1) is generated. the valid edge is specified by t he prm0n.esn00 and prm0n.esn01 bits. the rising edge, falling edge, or both the rising and falling edges can be selected. the valid edge is detected throu gh sampling at a count clock cycle se lected with the prm0n register and selcnt1 register, and the capture oper ation is not performed until the valid edge is detected twice. as a result, noise with a short pulse width can be eliminated. remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 315 figure 8-9. control register setti ngs for pulse width measurement with free-running timer operati on and one capture register (when ti0n0 pin and cr0n1 register are used) (a) 16-bit timer mode cont rol register 0n (tmc0n) 00000 tmc0n3 tmc0n tmc0n2 tmc0n1 ovf0n free-running timer mode 1 0/1 note 0 (b) capture/compare cont rol register 0n (crc0n) 00000 crc0n crc0n2 crc0n1 crc0n0 cr0n0 used as compare register cr0n1 used as capture register 1 0/1 0 (c) prescaler mode register 0n (prm0n) and selector operation control register 1 (selcnt1) 0/1 0/1 1 1 0 prm0n selects count clock (setting to 111 is prohibited.) specifies both edges for pulse width detection setting invalid (setting to 10 is prohibited.) 0 0/1 0/1 0/1 2 prm0n1 prm0n0 esn01 esn10 esn11 esn00 3 isel1n selcnt1 note be sure to clear the tmc0n1 bit to 0 when the to0n pin and ti0n0 pin are used alternately. remarks 1. 0/1: when these bits are reset to 0 or set to 1, other functions can be used together with the pulse width measurement function. for details, refer to 8.3 (1) 16-bit timer mode control register 0n (tmc0n) and 8.3 (2) capture/compare control register 0n (crc0n) . 2. n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 316 figure 8-10. configuration fo r pulse width measurement with free-running timer operation 16-bit timer counter 0n (tm0n) 16-bit timer capture/compare register 0n1 (cr0n1) selector ovf0n inttm0n1 internal bus ti0n0 count clock note note the count clock is set with the pr m0n register and selcnt1 register. remark n = 0 to 3 figure 8-11. timing of pulse width measu rement with free-running timer operation and one capture register ( with both edges specified) t 0000h 0000h ffffh 0001h d0 d0 + 1 d1 d0 d1 d2 d3 d2 d3 d1 + 1 (d1 ? d0) .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 317 (2) measurement of two pulse width s with free-running timer operation the pulse widths of two signals respectively input to the ti0n0 pin and the ti0n1 pi n can be simultaneously measured when 16-bit timer/event counter 0n is used in the free-running timer mode (refer to figure 8-12 ). when the edge specified by the prm 0n.esn00 and prm0n.esn01 bits is input to the ti0n0 pin, the value of the tm0n register is loaded to the cr0n1 register and an external inte rrupt request signal (inttm0n1) is generated. when the edge specified by the prm 0n.esn10 and prm0n.esn11 bits is input to the ti0n1 pin, the value of the tm0n register is loaded to the cr0n0 register and an external inte rrupt request signal (inttm0n0) is generated. the edges of the ti0n0 and ti0n1 pi ns are specified by the prm0n. esn00 and prm0n.esn01 bits and the prm0n.esn10 and prm0n.esn11 bits, respectively. specify both rising and falling edges. the valid edge of the ti0n0 pin is det ected through sampling at the count clock cycle selected with the prm0n register and selcnt1 register, and t he capture operation is not performed until the valid level is detected twice. as a result, noise with a short pulse width can be eliminated. remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 318 figure 8-12. control register settings for measurement of two pulse widths with free-running timer operation (a) 16-bit timer mode cont rol register 0n (tmc0n) 0 tmc0n 000010/1 note 0 tmc0n3 tmc0n2 tmc0n1 ovf0n free-running timer mode (b) capture/compare cont rol register 0n (crc0n) 0 crc0n 0000101 crc0n2 crc0n1 crc0n0 cr0n0 used as capture register captures to cr0n0 at valid edge of ti0n1 pin cr0n1 used as capture register (c) prescaler mode register 0n (prm0n) and selector operation control register 1 (selcnt1) 11110 prm0n selects count clock (setting to 111 is prohibited.) specifies both edges for pulse width detection. specifies both edges for pulse width detection. 0 0/1 0/1 2 prm0n1 prm0n0 esn01 esn10 esn11 esn00 3 0/1 isel1n selcnt1 note be sure to clear the tmc0n1 bit to 0 when the to0n pin and ti0n0 pin are used alternately. remarks 1. 0/1: when these bits are reset to 0 or set to 1, other functions can be used together with the pulse width measurement function. for details, refer to 8.3 (1) 16-bit timer mode control register 0n (tmc0n) . 2. n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 319 ? .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 320 figure 8-14. control register setti ngs for pulse width measurement with free-running timer operati on and two capture registers (with rising edge specified) (a) 16-bit timer mode cont rol register 0n (tmc0n) 0 tmc0n 000010/1 note 0 tmc0n3 tmc0n2 tmc0n1 ovf0n free-running timer mode (b) capture/compare cont rol register 0n (crc0n) 0 crc0n 0000111 crc0n2 crc0n1 crc0n0 cr0n0 used as capture register captures to cr0n0 at edge inverse to valid edge of ti0n0 pin cr0n1 used as capture register (c) prescaler mode register 0n (prm0n) and selector operation control register 1 (selcnt1) 0/1 0/1 0 1 0 3 prm0n 2 prm0n1 prm0n0 esn11 esn10 esn01 esn00 selects count clock (setting to 111 is prohibited.) specifies rising edge for pulse width detection setting invalid (setting to 10 is prohibited.) 0 0/1 0/1 0/1 isel1n selcnt1 note be sure to clear the tmc0n1 bit to 0 when the to0n pin and ti0n0 pin are used alternately. remarks 1. 0/1: when these bits are reset to 0 or set to 1, other functions can be used together with the pulse width measurement function. for details, refer to 8.3 (1) 16-bit timer mode control register 0n (tmc0n) . 2. n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 321 figure 8-15. timing of pulse width measu rement with free-running timer operation and two capture registers (with rising edge specified) t 0000h 0001h ffffh 0000h d0 d0 d1 d3 d2 d0 + 1 d1 d1 + 1 d2 d3 d2 + 1 (d1 ? d0) .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 322 figure 8-16. control register settings fo r pulse width measurement by restarting (a) 16-bit timer mode cont rol register 0n (tmc0n) 0 tmc0n 000100/1 note 0 tmc0n3 tmc0n2 tmc0n1 ovf0n clears and starts at valid edge of ti0n0 pin (b) capture/compare cont rol register 0n (crc0n) 0 crc0n 0000111 crc0n2 crc0n1 crc0n0 cr0n0 used as capture register captures to cr0n0 at edge inverse to valid edge of ti0n0 pin cr0n1 used as capture register (c) prescaler mode register 0n (prm0n) and selector operation control register 1 (selcnt1) 0/1 0/1 0 1 0 3 prm0n 2 prm0n1 prm0n0 esn11 esn10 esn01 esn00 selects count clock (setting to 111 is prohibited.) specifies rising edge for pulse width detection setting invalid (setting to 10 is prohibited.) 0 0/1 0/1 0/1 isel1n selcnt1 note be sure to clear the tmc0n1 bit to 0 when the to0n pin and ti0n0 pin are used alternately. remarks 1. 0/1: when these bits are reset to 0 or set to 1, other functions can be used together with the pulse width measurement function. for details, refer to 8.3 (1) 16-bit timer mode control register 0n (tmc0n) . 2. n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 323 figure 8-17. timing of pulse width measurement by restarting (with rising edge specified) t (d1 + 1) t (d2 + 1) t d0 d0 d2 d1 d1 d2 0001h 0000h 0001h 0000h 0001h 0000h count clock tm0n count value ti0n0 pin input inttm0n1 value loaded to cr0n1 value loaded to cr0n0 remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 324 8.4.4 operation as external event counter setting procedure the basic operation setting procedure is as follows. <1> set the crc0n register (refer to figure 8-18 for the setting value). <2> set the count clock using the prm0n register and selcnt1 register. <3> set any value (except for 0000h) to the cr0n0 register. <4> set the tmc0n register: start operation (refer to figure 8-18 for the setting value). remarks 1. for the alternate-function pin (ti0n0) settings, refer to table 4-16 settings when port pins are used for alternate functions . 2. for inttm0n0 interrupt enable, refer to chapter 21 interrupt/exception processing function . the external event counter counts the number of clock pulses input to the ti0n0 pin from an external source by using the tm0n register. each time the valid edge specified by the prm0n regist er has been input, the tm0n r egister is incremented. when the count value of the tm0n regist er matches the value of the cr0n0 r egister, the tm0n register is cleared to 0000h and an interrupt request signal (inttm0n0) is generated. set the cr0n0 register to a value other than 0000 h (one-pulse count operation is not possible). the edge is specified by the prm0n.esn00 and prm0n.es n01 bits. the rising, falling, or both the rising and falling edges can be specified. the valid edge is detected through sampling at a count clock cycle of f xx /4, and the capture operation is not performed until the valid level is detected twice. as a re sult, noise with a short pulse width can be eliminated. caution the value of the cr0n0 a nd cr0n1 registers cannot be changed during time r count operation. remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 325 figure 8-18. control register se ttings in external ev ent count mode (with rising edge specified) (a) 16-bit timer mode cont rol register 0n (tmc0n) 00001 tmc0n3 tmc0n tmc0n2 tmc0n1 ovf0n clears and starts on match between tm0n and cr0n0 1 0/1 note 0 (b) capture/compare cont rol register 0n (crc0n) 00000 crc0n crc0n2 crc0n1 crc0n0 cr0n0 used as compare register 0/1 0/1 0 (c) prescaler mode register 0n (prm0n) and selector operation control register 1 (selcnt1) 0/1 0/1 0 1 0 3 prm0n 2 prm0n1 prm0n0 esn11 esn10 esn01 esn00 selects external clock specifies rising edge for external event count input setting invalid (setting to 10 is prohibited.) 01 1 0 isel1n selcnt1 note be sure to clear the tmc0n1 bit to 0 when the to0n pin and ti0n0 pin are used alternately. remarks 1. 0/1: when these bits are reset to 0 or set to 1, other functions can be used together with the external event counter function. for details, refer to 8.3 (1) 16-bit timer mode control register 0n (tmc0n) and 8.3 (2) capture/compare c ontrol register 0n (crc0n) . 2. n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 326 figure 8-19. configuration of external event counter 16-bit timer capture/compare register 0n0 (cr0n0) 16-bit timer counter 0n (tm0n) 16-bit timer capture/compare register 0n1 (cr0n1) selector ovf0n inttm0n0 count clock note fxx/4 ti0n0 valid edge internal bus noise eliminator match clear note set with the prm0n register and selcnt1 register. remark n = 0 to 3 figure 8-20. timing of external event coun ter operation (with rising edge specified) 0000h 0001h 0002h 0003h 0000h 0001h 0002h 0003h 0004h 0005h n ? .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 327 8.4.5 square-wave output operation setting procedure the basic operation setting procedure is as follows. <1> set the count clock using the prm0n register and selcnt1 register. <2> set the crc0n register (refer to figure 8-21 for the setting value). <3> set the toc0n register (refer to figure 8-21 for the setting value). <4> set any value (except for 0000h) to the cr0n0 register. <5> set the tmc0n register: start operation (refer to figure 8-21 for the setting value). remarks 1. for the alternate-function pin (to0n) settings, refer to table 4-16 settings when port pins are used for alternate functions . 2. for inttm0n0 interrupt enable, refer to chapter 21 interrupt/exception processing function . 16-bit timer/event counter 0n can be us ed to output a square wave with any fr equency at an interval specified by the count value set in advance to the cr0n0 register. by setting the toc0n.toe0n and toc0n.to c0n1 bits to 11, the out put status of the to0n pin is inverted at an interval set in advance to the cr0n0 register. in this way, a square wave of any frequency can be output. caution the value of the cr0n0 a nd cr0n1 registers cannot be changed during time r count operation. .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 328 figure 8-21. control register setti ngs in square-wave output mode (a) 16-bit timer mode cont rol register 0n (tmc0n) 00001 tmc0n3 tmc0n tmc0n2 tmc0n1 ovf0n clears and starts upon match between tm0n and cr0n0 100 (b) capture/compare cont rol register 0n (crc0n) 00000 crc0n crc0n2 crc0n1 crc0n0 cr0n0 used as compare register 0/1 0/1 0 (c) 16-bit timer output control register 0n (toc0n) 0 0 0 0 0/1 toc0n lvr0n lvs0n toc0n4 ospe0n ospt0n toc0n1 toe0n enables to0n output inverts output upon match between tm0n and cr0n0 specifies initial value of to0n output f/f does not invert output upon match between tm0n and cr0n1 disables one-shot pulse output (other than tm02 and tm03) 0/1 1 1 (d) prescaler mode register 0n (prm0n) and selector operation control register 1 (selcnt1) 0/1 0/1 0/1 0/1 0 3 prm0n 2 prm0n1 prm0n0 esn11 esn10 esn01 esn00 selects count clock setting invalid (setting to 10 is prohibited.) setting invalid (setting to 10 is prohibited.) 0 0/1 0/1 0/1 isel1n selcnt1 remarks 1. for details, refer to 8.3 (2) capture/compare c ontrol register 0n (crc0n) and 8.3 (3) 16-bit timer output control register 0n (toc0n) . 2. n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 329 figure 8-22. timing of square-wave output operation 0000h 0001h 0002h 0000h 0001h 0002h n ? ? .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 330 8.4.6 one-shot pulse output operation 16-bit timer/event counter 0n can output a one-shot pulse in synchronization with a software trigger or an external trigger (ti0n0 pin input). setting procedure the basic operation setting procedure is as follows. <1> set the count clock using the prm0n register and selcnt1 register. <2> set the crc0n register (refer to figures 8-23 and 8-25 for the setting value). <3> set the toc0n register (refer to figures 8-23 and 8-25 for the setting value). <4> set any value to the cr0n0 and cr0n1 registers. <5> set the tmc0n register: start operation (refer to figures 8-23 and 8-25 for the setting value). remarks 1. for the alternate-function pin (to0n) settings, refer to table 4-16 settings when port pins are used for alternate functions . 2. for inttm0n0 interrupt enable, refer to chapter 21 interrupt/exception processing function . (1) one-shot pulse output with software trigger a one-shot pulse can be output from the to0n pin by setting the tmc0n, crc0n, and toc0n registers as shown in figure 8-23, and by setting the toc0n.ospt0n bit to 1 by software. by setting the ospt0n bit to 1, 16-bit timer/event count er 0n is cleared and start ed, and its output becomes active at the count value (n) set in advance to the cr0n1 register. after that, the output becomes inactive at the count value (m) set in advance to the cr0n0 register note . even after the one-shot pulse has been output, 16-bit timer/ event counter 0n continues its operation. to stop 16-bit timer/event counter 0n, t he tmc0n.tmc0n3 and tmc0n.tmc0n2 bits must be cleared to 00. note the case where n < m is described here. when n > m, the output becomes active with the cr0n0 register and inactive with the cr0n1 register. cautions 1. do not set the ospt0n bit to 1 while the one-shot pulse is being output. to output the one-shot pulse again, wait until the current one-shot pulse output is completed. 2. the value of the cr0n0 and cr0n1 regi sters cannot be change d during timer count operation. remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 331 figure 8-23. control register settings for one- shot pulse output with software trigger (1/2) (a) 16-bit timer mode cont rol register 0n (tmc0n) 00000 tmc0n3 tmc0n tmc0n2 tmc0n1 ovf0n free-running timer mode 100 (b) capture/compare cont rol register 0n (crc0n) 00000 crc0n crc0n2 crc0n1 crc0n0 cr0n0 used as compare register cr0n1 used as compare register 0 0/1 0 (c) 16-bit timer output control register 0n (toc0n) 0 0 1 1 0/1 toc0n lvr0n lvs0n toc0n4 ospe0n ospt0n toc0n1 toe0n enables to0n output inverts output upon match between tm0n and cr0n0 specifies initial value of to0n output f/f inverts output upon match between tm0n and cr0n1 sets one-shot pulse output mode set to 1 for output 0/1 1 1 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 332 figure 8-23. control register settings for one- shot pulse output with software trigger (2/2) (d) prescaler mode register 0n (prm0n) and selector operation control register 1 (selcnt1) 0/1 0/1 0/1 0/1 0 3 prm0n 2 prm0n1 prm0n0 esn11 esn10 esn01 esn00 selects count clock setting invalid (setting to 10 is prohibited.) setting invalid (setting to 10 is prohibited.) 0 0/1 0/1 0/1 isel1n selcnt1 caution do not set 0000h to the cr0n0 and cr0n1 registers. remarks 1. for details, refer to 8.3 (2) capture/compare c ontrol register 0n (crc0n) and 8.3 (3) 16-bit timer output control register 0n (toc0n) . 2. n = 0 to 3 figure 8-24. timing of one-shot pulse output operation with software trigger 0000h n nn n n mm m m nm n + 1 n ? ? .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 333 (2) one-shot pulse output with external trigger a one-shot pulse can be output from the to0n pin by setting the tmc0n, crc0n, and toc0n registers as shown in figure 8-25, and by using the valid edg e of the ti0n0 pin as an external trigger. the valid edge of the ti0n0 pin is specified by the prm0n.esn00 and prm 0n.esn01 bits. the rising, falling, or both the rising and falling edges can be specified. when the valid edge of the ti0n0 pin is detected, 16-bit timer/ev ent counter 0n is clear ed and started, and the output becomes active at the count value set in advance to the cr0n1 register. after that, the output becomes inactive at the count value set in advance to the cr0n0 register note . note the case where n < m is described here. when n > m, the output becomes active with the cr0n0 register and inactive with the cr0n1 register. cautions 1. even if the external trigger is gene rated again while the one-s hot pulse is output, it is ignored. 2. the value of the cr0n0 and cr0n1 regi sters cannot be change d during timer count operation. remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 334 figure 8-25. control register settings for on e-shot pulse output with external trigger (with rising edge specified) (1/2) (a) 16-bit timer mode cont rol register 0n (tmc0n) 00001 tmc0n3 tmc0n tmc0n2 tmc0n1 ovf0n clears and starts at valid edge of ti0n0 pin 000 (b) capture/compare cont rol register 0n (crc0n) 00000 crc0n crc0n2 crc0n1 crc0n0 cr0n0 used as compare register cr0n1 used as compare register 0 0/1 0 (c) 16-bit timer output control register 0n (toc0n) 00 1 1 0/1 toc0n lvr0n toc0n1 toe0n ospe0n ospt0n toc0n4 lvs0n enables to0n output inverts output upon match between tm0n and cr0n0 specifies initial value of to0n output f/f inverts output upon match between tm0n and cr0n1 sets one-shot pulse output mode 0/1 1 1 .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 335 figure 8-25. control register settings for on e-shot pulse output with external trigger (with rising edge specified) (2/2) (d) prescaler mode register 0n (prm0n) and selector operation control register 1 (selcnt1) 0/1 0/1 0 1 0 3 prm0n 2 prm0n1 prm0n0 esn11 esn10 esn01 esn00 selects count clock (setting to 111 is prohibited.) specifies rising edge for pulse width detection. setting invalid (setting to 10 is prohibited.) 0 0/1 0/1 0/1 isel1n selcnt1 caution do not set the cr0n0 and cr0n1 registers to 0000h. remarks 1. for details, refer to 8.3 (2) capture/compare c ontrol register 0n (crc0n) and 8.3 (3) 16-bit timer output control register 0n (toc0n) . 2. n = 0 to 3 figure 8-26. timing of one-shot pulse output operation with external trigger (wit h rising edge specified) 0000h n nn n n mm m m m n + 1 n + 2 m + 1 m + 2 m ? ? .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 336 8.4.7 cautions (1) alternate functions of ti0n0/to0n pins channel pin alternate function remarks ti000 p33/to00/tip00/top00 shares the pin with to00. ti001 p34/to00/tip01/top01 shares the pin with to00. p33/ti000/tip00/top00 tm00 to00 p34/ti001/tip01/top01 assigned to two pins, p33 and p34. ti010 p35/to01 shares the pin with to01. ti011 p50/kr0/rtp00 p32/asck0/adtrg tm01 to01 p35/ti010 assigned to two pins, p32 and p35. ti020 p92/a2/to02 shares the pin with to02. ti021 p93/a3 p30/txd0 tm02 to02 p92/ti020/a2 assigned to two pins, p30 and p92. ti030 p94/a4/to03 shares the pin with to03. ti031 p95/a5 p31/rxd0/intp7 tm03 to03 p94/ti030/a4 assigned to two pins, p31 and p94. (a) for tm00 channel ? when using the output of to00 that functions alternately as p33, only a software trigger (toc00.ospt00 bit) can be used as the trigger in the one-shot pulse output mode. a p33/ti000 pin input signal cannot be used as the trigger since ti00 0 and to00 share a pin and are used alternately. a ti000 pin input signal can be used as the trigge r, however, when using the output of to00 that functions alternately as p34. ? when using the output of to00 that functions altern ately as p33, the timer output inversion operation using the valid edge of the ti000 pi n input cannot be performed. the valid edge cannot be input to the p33/ti000 pin since ti000 and to00 share a pin and ar e used alternately. set the tmc00.tmc001 bit to 0 in this event. the timer output inversion oper ation using the valid edge of t he ti000 pin input can be performed, however, when using the output of to 00 that functions alternately as p34. (b) for tm01 channel ? when using the output of to01 that functions alternately as p35, only a software trigger (toc01.ospt01 bit) can be used as the trigger in the one-shot pulse output mode. a p35/ti010 pin input signal cannot be used as the trigger since ti01 0 and to01 share a pin and are used alternately. a ti010 pin input signal can be used as the trigge r, however, when using the output of to01 that functions alternately as p32. ? when using the output of to01 that functions altern ately as p35, the timer output inversion operation using the valid edge of the ti010 pi n input cannot be performed. the valid edge cannot be input to the p35/ti010 pin since ti010 and to01 share a pin and ar e used alternately. set the tmc01.tmc011 bit to 0 in this event. the timer output inversion oper ation using the valid edge of t he ti010 pin input can be performed, however, when using the output of to 01 that functions alternately as p32. .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 337 (c) for tm02 channel ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 338 (4) data hold timing of capture register <1> if the valid edge of the ti0n0 pin is input while t he cr0n1 register is read, the cr0n1 register performs capture operation, but the read value at this time is not guarant eed. however, the interrupt request signal (inttm0n1) is generated as a result of detection of the valid edge. figure 8-28. data hold timing of capture register n n + 1 n + 2 x n + 1 m m + 1 m + 2 count pulse tm0n count value edge input inttm0n1 cr0n1 capture value capture read signal capture operation is performed but read value is not guaranteed capture operation remark n = 0 to 3 <2> the values of the cr0n0 and cr0n1 registers are not guaranteed after 16-bit timer/event counter 0n has stopped. (5) setting valid edge before setting the valid edge of the ti0n0 pin, stop the timer operation by clear ing the tmc0n.tmc0n2 and tmc0n.tmc0n3 bits to 00. set the valid edge by using the prm0n.esn00 and prm0n.esn01 bits. remark n = 0 to 3 (6) re-triggering one-shot pulse (a) one-shot pulse output by software when a one-shot pulse is output, do not set the to c0n.ospt0n bit to 1. do not output the one-shot pulse again until the inttm0n0 signal, which occu rs upon match with the cr0n0 register, or the inttm0n1 signal, which occurs upon match with the cr0n1 register, occurs. remark n = 0 to 3 (b) one-shot pulse output with external trigger if the external trigger occurs again while a one-shot pulse is output, it is ignored. .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 339 (7) operation of ovf0n flag (a) setting of ovf0n flag the tmc0n.ovf0n flag is set to 1 in the following case in addition to when the tm0n register overflows. select the mode in which clear & start occurs upon match between the tm0n r egister and the cr0n0 register. .com .com .com .com 4 .com u datasheet
chapter 8 16-bit timer/event counter 0 preliminary user?s manual u16894ej1v0ud 340 (9) capture operation (a) if valid edge of ti0n0 is specified for count clock if the valid edge of ti0n0 is specified for the count clo ck, the capture register t hat specified ti0n0 as the trigger does not operate normally. (b) if both rising and falling edges are selected for valid edge of ti0n0 if both the rising and falling edges are selected for t he valid edge of ti0n0, capture operation is not performed. (c) to ensure that signals from ti0n 1 and ti0n0 are correctly captured for the capture trigger to capture the signals from ti0n1 and ti0n0 correc tly, a pulse longer than two of the count clocks selected by the prm0n regi ster and selcnt1 register is required. (d) interrupt request input although a capture operation is per formed at the falling edge of the count clock, an interrupt request signal (inttm0n0, inttm0n1) is generated at t he rising edge of the next count clock. remark n = 0 to 3 (10) compare operation when set to the compare mode, the cr0n0 and cr0n1 re gisters do not perform capt ure operation even if a capture trigger is input. caution the value of the cr0n0 re gister cannot be changed during ti mer operation. the value of the cr0n1 register cannot be cha nged during timer operation other than in the ppg output mode. to change the cr0n1 register in the ppg output mode, refer to 8.4.2 ppg output operation. remark n = 0 to 3 (11) edge detection (a) sampling clock for noise elimination the sampling clock for noise elimination differs dep ending on whether the valid edge of ti0n0 is used for the count clock or as a capture trigger. in the former case, sampling is performed using f xx /4, and in the latter case, sampling is performed using the count clock selected by the prm0n register and selcnt1 register. the first capture operati on does not start until the valid edges are sampled and two valid levels are detected, thus eliminating noise with a short pulse width. remarks 1. f xx : main clock frequency 2. n = 0 to 3 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 341 chapter 9 8-bit timer/event counter 5 in the v850es/kg1+, two channels of 8-bi t timer/event counter 5 are provided. 9.1 functions 8-bit timer/event counter 5n has the following two modes (n = 0, 1). ? mode using 8-bit timer/event counter alone (individual mode) ? mode using cascade connection (16-bit resolution: cascade connection mode) these two modes are described below. (1) mode using 8-bit timer/event counter alone (i ndividual mode) 8-bit timer/event counter 5n operates as an 8-bit timer/event counter. the following functions can be used. ? interval timer ? external event counter ? square-wave output ? pwm output (2) mode using cascade connection (16-bi t resolution: cascade connection mode) 8-bit timer/event counter 5n operates as a 16-bit ti mer/event counter by c onnecting the tm50 and tm51 registers in cascade. the following functions can be used. ? interval timer with 16-bit resolution ? external event counter with 16-bit resolution ? square-wave output with 16-bit resolution .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 342 9.2 configuration 8-bit timer/event counter 5n cons ists of the following hardware. table 9-1. configuration of 8-bit timer/event counter 5n item configuration timer registers 8-bit timer counters 50, 51 (tm50, tm51) 16-bit timer counter 5 (tm5): on ly when using cascade connection registers 8-bit timer compare registers 50, 51 (cr50, cr51) 16-bit timer compare register 5 (cr5 ): only when using cascade connection timer output to50, to51 control registers note timer clock selection regist ers 50, 51 (tcl50, tcl51) 8-bit timer mode control registers 50, 51 (tmc50, tmc51) 16-bit timer mode control register 5 (t mc5): only when using cascade connection note when using the functions of the ti5n and to5n pins, refer to table 4-16 settings when port pins are used for alternate functions . remark n = 0, 1 the block diagram of 8-bit timer/event counter 5n is shown below. figure 9-1. block diagram of 8-bit timer/event counter 5n ovf ti5n 3 tcl5n2 tcl5n1 tcl5n0 tce5n tmc5n6 tmc5n4 lvs5n lvr5n tmc5n1 toe5n to5n inttm5n s r q inv s r q match clear count clock note selector internal bus internal bus 8-bit timer mode control register 5n (tmc5n) 8-bit timer compare register 5n (cr5n) 8-bit timer counter 5n (tm5n) selector invert level mask circuit timer clock selection register 5n (tcl5n) selector selector note the count clock is set by the tcl5n register. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 343 (1) 8-bit timer counter 5n (tm5n) the tm5n register is an 8-bit read-only re gister that counts the count pulses. the counter is incremented in synchronization with the rising edge of the count clock. through cascade connection, the tm5n registers can be used as a 16-bit timer. when using the tm50 register and the tm 51 register in cascade as a 16-bi t timer, these registers are read- only, in 16-bit units. therefore, read these registers twice and compare t he values, taking into consideration that the reading occurs during a count change. tm5n (n = 0, 1) 642 after reset: 00h r address: tm50 fffff5c0h, tm51 fffff5c1h 0 753 1 the count value is reset to 00h in the following cases. <1> reset <2> when the tmc5n.tce5n bit is cleared (0) <3> the values of the tm5n register and cr5n register match in the mode in which clear & start occurs on a match between the tm5n regist er and the cr5n register caution when connected in cascade, these registers become 0000h ev en when the tce50 bit in the lowest timer (tm50) is cleared. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 344 (2) 8-bit timer compare register 5n (cr5n) the cr5n register can be read and written in 8-bit units. in a mode other than the pwm mode, the value set to the cr5n register is always compared to the count value of the tm5n register, and if the two values match, an interrupt request signal (inttm5n) is generated. in the pwm mode, tm5n register overfl ow causes the to5n pin output to chan ge to the active level, and when the values of the tm5n register and the cr5n register match, the to5n pi n output changes to the inactive level. the value of the cr5n register can be set in the range of 00h to ffh. when using the tm50 register and tm51 register in ca scade as a 16-bit timer, the cr50 register and cr51 register operate as 16-bit timer compare register 5 (cr5 ). the counter value and register value are compared in 16-bit lengths, and if they match, an inte rrupt request signal (inttm50) is generated. cr5n (n = 0, 1) 642 after reset: 00h r/w address: cr50 fffff5c2h, cr51 fffff5c3h 0 753 1 cautions 1. in the mode in which clear & start occurs upon a match of the tm5n register and cr5n register (tmc5n.tmc5n6 bit = 0), do not writ e a different value to the cr5n register during the count operation. 2. in the pwm mode, set the cr5n register re write interval to thr ee or more count clocks (clock selected with the tcl5n register). 3. before changing the value of the cr5n re gister when using a cascade connection, be sure to stop the timer operation. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 345 9.3 registers the following two registers are used to co ntrol 8-bit timer/event counter 5n. ? ? .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 346 (2) 8-bit timer mode control register 5n (tmc5n) the tmc5n register performs the following six settings. ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 347 tce5n counting is disabled after the counter is cleared to 0 (counter disabled) start count operation tce5n 0 1 control of count operation of 8-bit timer/event counter 5n tmc5n (n = 0, 1) tmc5n6 0 tmc514 note lvs5n lvr5n tmc5n1 toe5n mode in which clear & start occurs on match between tm5n register and cr5n register pwm (free-running timer) mode tmc5n6 0 1 selection of operation mode of 8-bit timer/event counter 5n individual mode cascade connection mode (connected with 8-bit timer/event counter 50) tmc514 0 1 selection of individual mode or cascade connection mode for 8-bit timer/event counter 51 unchanged reset timer output f/f to 0 set timer output f/f to 1 setting prohibited lvs5n 0 0 1 1 setting of status of timer output f/f lvr5n 0 1 0 1 after reset: 00h r/w address: tmc50 fffff5c6h, tmc51 fffff5c7h disable inversion operation enable inversion operation high active low active tmc5n1 0 1 other than pwm (free-running timer) mode (tmc5n6 bit = 0) controls timer f/f pwm (free-running timer) mode (tmc5n6 bit = 1) selects active level disable output (to5n pin is low level) enable output toe5n 0 1 timer output control <7> 6 5 4 3 2 1 <0> note bit 4 of the tmc50 register is fixed to 0. cautions 1. because the to51 and ti51 pins are al ternate functions of the same pin, only one can be used at one time. 2. the lvs5n and lvr5n bit settings are val id in modes other than the pwm mode. 3. do not set <1> to <4> below at the same time. set as follows. <1> set the tmc5n1 , tmc5n6, and tmc514 note bits: setting of operation mode <2> set the toe5n bit for timer output enable: timer output enable <3> set the lvs5n and lvr5n bits (caution 2): setting of timer output f/f <4> set the tce5n bit remarks 1. in the pwm mode, the pwm output is set to the inactive level by the tce5n bit = 0. 2. when the lvs5n and lvr5n bits are read, 0 is read. 3. the values of the tmc5n6, l vs5n, lvr5n, tmc5n1, and toe 5n bits are reflected to the to5n output regardless of the tce5n bit value. .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 348 9.4 operation 9.4.1 operation as interval timer 8-bit timer/event counter 5n operates as an interval timer t hat repeatedly generates interrupt s at the interval of the count value preset in the cr 5n register. if the count value in the tm5n register matches the value set in the cr5n register, the value of the tm5n register is cleared to 00h and counting is continued, and at the same time, an interrupt request signal (inttm5n) is generated. setting method <1> set each register. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 349 figure 9-2. timing of interval timer operation (2/2) when cr5n register = 00h t interval time 00h 00h 00h 00h 00h count clock tm5n count value cr5n tce5n inttm5n remark n = 0, 1 when cr5n register = ffh t 01h 00h feh ffh 00h feh ffh 00h ffh ffh ffh count clock tm5n count value cr5n tce5n inttm5n interval time interrupt acknowledgment interrupt acknowledgment remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 350 9.4.2 operation as external event counter the external event counter c ounts the number of clock pulses input to the ti5n pin from an external source by using the tm5n register. each time the valid edge specified by the tcl5n register is input to the ti5n pin, the tm5n register is incremented. either the rising edge or the falling e dge can be specified as the valid edge. when the count value of the tm5n regist er matches the value of the cr5n regi ster, the tm5n register is cleared to 0 and an interrupt request signal (inttm5n) is generated. setting method <1> set each register. ? tcl5n register: selects the ti5n pin input edge. falling edge of ti5n pin tcl5n register = 00h rising edge of ti5n pin tcl5n register = 01h ? cr5n register: compare value (n) ? tmc5n register: stops count operation, selects t he mode in which clear & start occurs on a match between the tm5n register and cr5n register , disables timer output f/f inversion operation, and disables timer output. (tmc5n register = 0000xx00b, : don?t care) ? for the alternate-function pin settings, refer to table 4-16 settings when port pins are used for alternate functions. <2> when the tmc5n.tce5n bit is set to 1, the counter co unts the number of pulses in put from the ti5n pin. <3> when the values of the tm5n regi ster and cr5n register match, the inttm5n signal is generated (tm5n register is cleared to 00h). <4> then, the inttm5n signal is generat ed each time the values of t he tm5n register and cr5n register match. inttm5n signal is generated when the valid edge is input to the ti5n pin n + 1 times: n = 00h to ffh caution during external event counter operation, do not rewrite the value of the cr5n register. remark n = 0, 1 figure 9-3. timing of external event coun ter operation (with rising edge specified) 00h 01h 02h 03h 04h 05h n ? 1n n 00h 01h 02h 03h ti5n cr5n inttm5n tce5n tm5n count value count start remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 351 9.4.3 square-wave output operation a square wave with any frequency can be output at an interval determined by the value preset in the cr5n register. by setting the tmc5n.toe5n bit to 1, the output status of the to5n pin is inverted at an interval determined by the count value preset in the cr 5n register. in this way, a square wave of any frequency can be output (duty = 50%) (n = 0, 1). setting method <1> set each register. ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 352 figure 9-4. timing of square-wave output operation t interval time interval time 00h n 01h 01h 00h n n n n n n 01h 00h clear interrupt acknowledgment interrupt acknowledgment clear count clock tm5n count value cr5n to5n note tce5n inttm5n count start note the initial value of the to5n pin output can be set using the tmc5n.lvs5n and tmc5n.lvr5n bits. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 353 9.4.4 8-bit pwm output operation by setting the tmc5n.tmc5n6 bit to 1, 8-bit ti mer/event counter 5n performs pwm output. pulses with a duty factor determined by the value set in the cr5n register are out put from the to5n pin. set the width of the active level of the pwm pulse in t he cr5n register. the active level can be selected using the tmc5n.tmc5n1 bit. the count clock can be select ed using the tcl5n register. pwm output can be enabled/disabled by the tmc5n.toe5n bit. caution the cr5n register rewrite interval must be three or more operation clocks (set by the tcl5n register). use method <1> set each register. ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 354 (a) basic operation of pwm output figure 9-5. timing of pwm output operation basic operation (active level = h) 00h n + 1 n n 00h m 00h ffh 01h 02h 01h 00h ffh 02h 01h active level inactive level active level count clock tm5n count value cr5n tce5n inttm5n to5n t when cr5n register = 00h 00h n + 1 n + 2 n 00h 00h m 00h ffh 01h 02h 01h 00h ffh 02h 01h inactive level inactive level count clock tm5n count value cr5n tce5n inttm5n to5n t when cr5n register = ffh 00h n + 1 n + 2 n ffh 00h m 00h ffh 01h 02h 01h 00h ffh 02h 01h inactive level inactive level inactive level active level active level count clock tm5n count value cr5n tce5n inttm5n to5n t remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 355 (b) operation based on cr5n register transitions figure 9-6. timing of operation b ased on cr5n register transitions when the value of the cr5n register changes from n to m before the rising edge of the ffh clock the value of the cr5n register is transferred at the overflow that occurs immediately after. n n + 1 n + 2 m n <1> cr5n transition (n m) m m + 1 m + 2 m m + 1 m + 2 ffh 02h 00h 01h ffh 02h 00h 01h count clock tm5n count value cr5n tce5n h inttm5n to5n <2> t when the value of the cr5n register changes from n to m after the rising edge of the ffh clock the value of the cr5n register is transferred at the second overflow. n n + 1 n + 2 n nn <1> cr5n transition (n m) m n + 1 n + 2 m m + 1 m + 2 ffh 03h 02h 00h 01h ffh 02h 00h 01h count clock tm5n count value cr5n tce5n h inttm5n to5n <2> t caution in the case of read from the cr5n register between <1> and <2>, the value that is actually used differs (read value: m; actu al value of cr5n register: n). remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 356 9.4.5 operation as inter val timer (16 bits) the 16-bit resolution timer/event counter mode is se lected by setting the tmc51.tmc514 bit to 1. 8-bit timer/event counter 5n operates as an interval time r by repeatedly generating inte rrupts using the count value preset in 16-bit timer compare register 5 (cr5) as the interval. setting method <1> set each register. ? tcl50 register: selects the count clock (t) (the tcl51 register does not need to be set in cascade connection) ? cr50 register: compare value (n) ... lower 8 bits (settable from 00h to ffh) ? cr51 register: compare value (n) ... higher 8 bits (settable from 00h to ffh) ? tmc50, tmc51 registers: selects the mode in which clear & start occurs on a match between tm5 register and cr5 register ( : don?t care) tmc50 register = 0000xx00b tmc51 register = 0001xx00b <2> set the tmc51.tce51 bit to 1. then set the tmc 50.tce50 bit to 1 to start the count operation. <3> when the values of the tm5 r egister and cr5 register connected in cascade match, the inttm50 signal is generated (the tm5 register is cleared to 0000h). <4> the inttm50 signal is then generated repeatedly at the same interval. interval time = (n + 1) t: n = 0000h to ffffh cautions 1. to write using 8-bit access during cascade connection, set th e tce51 bit to 1 at operation start and then set the tce50 bit to 1. when operation is stopped, clear the tce50 bit to 0 and then clear the tce51 bit to 0. 2. during cascade connection, ti50 pin input, to50 pin ou tput, and the inttm50 signal are used. do not use ti51 pin input, to 51 pin output, and the inttm51 signal; mask them instead (for details, refer to chapter 21 interrupt/exception processing function). clear the lvs51, lvr51, tmc511, and toe51 bits to 0. 3. do not change the value of the cr5 register during timer operation. .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 357 figure 9-7 shows a timing example of the cascade connection mode with 16-bit resolution. figure 9-7. cascade connection mode with 16-bit resolution 00h n + 1 01h 00h ffh 00h 01h ffh 00h ffh m ? .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 358 9.4.6 operation as external event counter (16 bits) the 16-bit resolution timer/event counter mode is selected by setting the tmc51.tmc514 bit to 1. the external event counter counts the number of clock pulse s input to the ti50 pin from an external source using 16-bit timer counter 5 (tm5). setting method <1> set each register. ? tcl50 register: selects the ti50 pin input edge. (the tcl51 register does not have to be set during cascade connection.) falling edge of ti50 pin tcl50 register = 00h rising edge of ti50 pin tcl50 register = 01h ? cr50 register: compare value (n) ... lower 8 bits (settable from 00h to ffh) ? cr51 register: compare value (n) ... higher 8 bits (settable from 00h to ffh) ? tmc50, tmc51 registers: stops count operation, selects the cl ear & start mode entered on a match between the tm5 register and cr5 regi ster, disables timer output f/f inversion, and disables timer output. ( : don?t care) tmc50 register = 0000xx00b tmc51 register = 0001xx00b ? for the alternate-function pin settings, refer to table 4-16 settings when port pins are used for alternate functions. <2> set the tmc51.tce51 bit to 1. then set the tmc 50.tce50 bit to 1 and count the number of pulses input from the ti50 pin. <3> when the values of the tm5 r egister and cr5 register connected in cascade match, the inttm50 signal is generated (the tm5 register is cleared to 0000h). <4> the inttm50 signal is then generated each time the va lues of the tm5 register and cr5 register match. inttm50 signal is generated when the valid edge is input to the ti50 pin n + 1 times: n = 0000h to ffffh cautions 1. during external event counter opera tion, do not rewrite the value of the cr5n register. 2. to write using 8-bit access during cascade connection, set the tce51 bit to 1 and then set the tce50 bit to 1. when operation is stopped, clear the tce50 bit to 0 and then clear the tce51 bit to 0 (n = 0, 1). 3. during cascade connection, ti50 pin input and the inttm 50 signal are used. do not use ti51 pin input, to51 pin ou tput, and the inttm51 signal; mask them instead (for details, refer to chapter 21 interrup t/exception processing function). clear the lvs51, lvr51, tmc 511, and toe51 bits to 0. 4. do not change the value of the cr5 regi ster during external event counter operation. .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 359 9.4.7 square-wave output operat ion (16-bit resolution) the 16-bit resolution timer/event counter mode is se lected by setting the tmc51.tmc514 bit to 1. 8-bit timer/event counter 5n outputs a square wave of any frequency using the interval preset in 16-bit timer compare register 5 (cr5). setting method <1> set each register. ? tcl50 register: selects the count clock (t) (the tcl51 register does not have to be set in cascade connection) ? cr50 register: compare value (n) ... lower 8 bits (settable from 00h to ffh) ? cr51 register: compare value (n) ... higher 8 bits (settable from 00h to ffh) ? tmc50, tmc51 registers: stops count operation, se lects the mode in which clear & start occurs on a match between the tm5 register and cr5 register. lvs50 lvr50 timer output f/f status settings 1 0 high-level output 0 1 low-level output enables timer output f/f inversion, and enables timer output. tmc50 register = 00001011b or 00000111b tmc51 register = 00010000b ? for the alternate-function pin settings, refer to table 4-16 settings when port pins are used for alternate functions. <2> set the tmc51.tce51 bit to 1. then set the tmc 50.tce50 bit to 1 to start the count operation. <3> when the values of the tm5 regi ster and the cr5 register connected in cascade match, the to50 timer output f/f is inverted. moreover, the inttm50 sign al is generated and the tm 5 register is cleared to 0000h. <4> then, the timer output f/f is inve rted during the same interval and a s quare wave is output from the to50 pin. frequency = 1/2t(n + 1): n = 0000h to ffffh caution do not write a different value to the cr5 register during operation. .com .com .com .com 4 .com u datasheet
chapter 9 8-bit timer/event counter 5 preliminary user?s manual u16894ej1v0ud 360 9.4.8 cautions (1) error on starting timer an error of up to 1 clock occurs before the match signal is generated after the timer has been started. this is because the tm5n register is started a synchronously to the count pulse. figure 9-8. count start timing of tm5n register 00h timer start 01h 02h 03h 04h count pulse tm5n count value remark n = 0, 1 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 361 chapter 10 8-bit timer h in the v850es/kg1+, two channels of 8-bit timer h are provided. 10.1 functions 8-bit timer hn has the following functions. ? interval timer ? pwm output ? square ware output ? carrier generator mode remark n = 0, 1 10.2 configuration 8-bit timer hn consists of the following hardware. table 10-1. configuration of 8-bit timer hn item configuration timer registers 8-bit ti mer counter hn: 1 each registers 8-bit timer h compare register n0 (cmpn0): 1 each 8-bit timer h compare register n1 (cmpn1): 1 each timer outputs 1 each (tohn pin) control registers note 8-bit timer h mode register n (tmhmdn) 8-bit timer h carrier control register n (tmcycn) note to use the tohn pin function, refer to table 4-16 settings when port pins are used for alternate functions . remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 362 the block diagram of 8-bit timer hn is shown below. figure 10-1. block diag ram of 8-bit timer hn match selector internal bus tmhen ckshn2 ckshn1 ckshn0 tmmdn1tmmdn0 tolevn toenn decoder 8-bit timer h compare register n0 (cmpn0) reload/ interrupt control tohn inttmhn inttm5n selector rmc n nrzb n f xx f xx /2 f xx /2 2 f xx /2 4 f xx /2 6 f xx /2 10 f r /2 11 interrupt generator output controller level inversion nrz n 1 0 f/f r 8-bit timer counter hn carrier generator mode signal pwm mode signal timer h enable signal clear 3 2 8-bit timer h compare register n1 (cmpn1) 8-bit timer h mode register n (tmhmdn) 8-bit timer h carrier control register n (tmcycn) remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 363 (1) 8-bit timer h compare register n0 (cmpn0) the cmpn0 register can be read or written in 8-bit units. after reset, cmpn0 is cleared to 00h. cmpn0 (n = 0, 1) after reset: 00h r/w address: cmp00 fffff582h, cmp10 fffff592h 76 54 32 1 0 caution rewriting the cmpn0 register during timer count operation is prohibited. (2) 8-bit timer h compare register n1 (cmpn1) the cmpn1 register can be read or written in 8-bit units. after reset, cmpn1 is cleared to 00h. cmpn1 (n = 0, 1) after reset: 00h r/w address: cmp01 fffff583h, cmp11 fffff593h 76 54 32 1 0 the cmpn1 register can be rewritt en during timer count operation. in the carrier generator mode, after the cmpn1 register is set, if the count value of 8-bit timer counter hn and the set value of the cmpn1 register match, an interrupt request signal (in ttmhn) is generated. at the same time, the value of 8-bit timer counter hn is cleared to 00h. if the set value of the cmpn1 register is rewritten dur ing timer operation, the reload timing is when the count value of 8-bit timer counter hn and the set value of the cmpn1 register match. if the transfer timing and write to the cmpn1 register by software conflict, transfer is not performed. caution in the pwm output mode a nd carrier generator mode, be su re to set the cmpn1 register when starting the timer count operation (t mhmdn.tmhen bit = 1) after the timer count operation was stopped (tmhen bit = 0) (be sure to set again even if setting the same value to the cmpn1 register). .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 364 10.3 registers the registers that control 8-bit timer hn are as follows. ? 8-bit timer h mode register n (tmhmdn) ? 8-bit timer h carrier control register n (tmcycn) remarks 1. to use the tohn pin function, refer to table 4-16 settings when port pins are used for alternate functions . 2. n = 0, 1 (1) 8-bit timer h mode register n (tmhmdn) the tmhmdn register controls the mode of 8-bit timer hn. the tmhmdn register can be read or written in 8-bit or 1-bit units. after reset, tmhmdn is cleared to 00h. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 365 (a) 8-bit timer h mode register 0 (tmhmd0) tmhe0 stop timer count operation (8-bit timer counter h0 = 00h) enable timer count operation (counting starts when clock is input) tmhe0 0 1 8-bit timer h0 operation enable tmhmd0 cksh02 cksh01 cksh00 tmmd01 tmmd00 tolev0 toen0 after reset: 00h r/w address: fffff580h f xx f xx /2 f xx /4 f xx /16 f xx /64 f xx /1024 cksh02 0 0 0 0 1 1 cksh01 0 0 1 1 0 0 cksh00 0 1 0 1 0 1 setting prohibited 125 ns 250 ns 1 s 4 s 64 s selection of count clock count clock note interval timer mode carrier generator mode pwm output mode setting prohibited tmmd01 0 0 1 1 tmmd00 0 1 0 1 8-bit timer h0 operation mode other than above low level high level tolev0 0 1 timer output level control (default) disable output enable output toen0 0 1 timer output control f xx = 16.0 mhz <7> 6 5 4 3 2 <1> <0> .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 366 (b) 8-bit timer h mode register 1 (tmhmd1) tmhe1 stop timer count operation (8-bit timer counter h1 = 00h) enable timer count operation (counting starts when clock is input) tmhe1 0 1 8-bit timer h1 operation enable tmhmd1 cksh12 cksh11 cksh10 tmmd11 tmmd10 tolev1 toen1 after reset: 00h r/w address: fffff590h f xx f xx /2 f xx /4 f xx /16 f xx /64 cksh12 0 0 0 0 1 1 cksh11 0 0 1 1 0 0 cksh10 0 1 0 1 0 1 setting prohibited 125 ns 250 ns 1 s 4 s selection of count clock count clock note interval timer mode carrier generator mode pwm output mode setting prohibited tmmd11 0 0 1 1 tmmd10 0 1 0 1 8-bit timer h1 operation mode f r /2048 setting prohibited other than above low level high level tolev1 0 1 timer output level control (default) disable output enable output toen1 0 1 timer output control f xx = 16.0 mhz <7> 6 5 4 3 2 <1> <0> .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 367 (2) 8-bit timer h carrier cont rol register n (tmcycn) this register controls the 8-bit timer hn remote control output and carrier pulse output status. the tmcycn register can be read or written in 8-bit or 1-bit units, but the nrzn bit is a read-only bit. after reset, tmcycn is cleared to 00h. 0 tmcycn (n = 0, 1) 0 0 0 0 rmcn nrzbn nrzn after reset: 00h r/w address: tmcyc0 fffff581h, tmcyc1 fffff591h low-level output high-level output low-level output carrier pulse output rmcn 0 0 1 1 nrzbn 0 1 0 1 remote control output carrier output disabled status (low-level status) carrier output enable status nrzn 0 1 carrier pulse output status flag 76 54 32 1<0> .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 368 10.4 operation 10.4.1 operation as interval timer/square wave output when the count value of 8-bit timer counter hn and the set value of the cmpn0 register match, an interrupt request signal (inttmhn) is generated and 8-bit timer counter hn is cleared to 00h. the cmpn1 register cannot be used in the interval timer mode. even if the cmpn1 register is set, this has no effect on the timer output because matches between 8-bit timer counter hn and the cmpn1 regi ster are not detected. a square wave of the desired frequency (duty = 50%) is out put from the tohn pin, by setting the tmhmdn.toenn bit to 1. (1) usage method the inttmhn signal is repeatedly generated in the same interval. <1> set each register. figure 10-2. register settings in interval timer mode (i) 8-bit timer h mode register n (tmhmdn) settings 0 0/1 0/1 0/1 0 sets timer output sets timer output level inversion sets interval timer mode selects count clock (f cnt ) stops count operation 0 0/1 0/1 tmmdn0 tolevn toenn ckshn1 ckshn2 tmhen tmhmdn ckshn0 tmmdn1 (ii) cmpn0 register settings ? .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 369 (2) timing chart the timing in the interval timer mode is as follows. figure 10-3. timing of interval timer/ square wave output operation (1/2) basic operation 00h count clock count start 8-bit timer counter hn count value cmpn0 tmhen inttmhn tohn 01h n clear clear n 00h 01h n 00h 01h 00h <1> <2> level inversion, match interrupt occurrence, 8-bit timer counter clear <2> level inversion, match interrupt occurrence, 8-bit timer counter clear <3> interval time <1> when the tmhen bit is set to 1, the count operation is enabled. the count clock starts counting no more than one clock after operation has been enabled. <2> when the count value of 8-bit timer counter hn and t he set value of the cmpn0 r egister match, the value of 8-bit timer counter hn is cleared, the tohn output level is inverted, and the inttmhn signal is output. <3> the inttmhn signal and tohn output become inactive when the tmhen bit is cleared to 0 during 8-bit timer hn operation. if the level is al ready inactive, it remains unchanged. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 370 figure 10-3. timing of interval timer/ square wave output operation (2/2) operation when cmpn0 register = ffh 00h count clock count start cmpn0 tmhen inttmhn tohn 01h feh clear clear ffh 00h feh ffh 00h ffh interval time 8-bit timer counter hn count value operation when cmpn0 register = 00h count clock count start cmpn0 tmhen inttmhn tohn 00h 00h interval time 8-bit timer counter hn count value remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 371 10.4.2 pwm output mode operation in the pwm output mode, a pulse of any duty and cycle can be output. the cmpn0 register controls the time r output (tohn) cycle. rewriting the cmpn0 register during timer operation is prohibited. the cmpn1 register controls the time r output (tohn) duty. the cmpn1 r egister can be rewritten during timer operation. the operation in the pwm out put mode is as follows. after timer counting starts, when the count value of 8-bit timer counter hn and the set value of the cmpn0 register match, the tohn output becomes active and 8-bit timer count er hn is cleared to 00h. when the count value of 8-bit timer counter hn and the set value of the cmpn1 re gister match, tohn output becomes inactive. (1) usage method in the pwm output mode, a pulse of any duty and cycle can be output. <1> set each register. figure 10-4. register settings in pwm output mode (i) 8-bit timer h mode register n (tmhmdn) settings 0 0/1 0/1 0/1 1 enables timer output sets timer output level inversion selects pwm output mode selects count clock (f cnt ) stops count operation 0 0/1 1 tmmdn0 tolevn toenn ckshn1 ckshn2 tmhen tmhmdn ckshn0 tmmdn1 (ii) cmpn0 register setting ? ? .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 372 <3> after the count operation is enabled, the first compare register to be compared is the cmpn0 register. when the count value of 8-bit timer counter hn and the set value of the cmpn0 register match, 8-bit timer counter hn is cleared, an interrupt request si gnal (inttmhn) is generated, and the tohn output becomes active. at the same time, the register t hat is compared with 8-bit timer counter hn changes from the cmpn0 register to the cmpn1 register. <4> when the count value of 8-bit timer counter hn and the set value of the cmpn1 register match, the tohn output becomes inactive, and at the same time the register that is compared with 8-bit timer counter hn changes from the cmpn1 r egister to the cmpn0 register. at this time, 8-bit timer counter hn is not cleared and the inttmhn signal is not generated. <5> a pulse of any duty can be obtained throug h the repetition of steps <3> and <4> above. <6> to stop the count operation, clear the tmhen bit to 0. designating the set value of the cmpn0 register as (n ), the set value of the cm pn1 register as (m), and the count clock frequency as f cnt , the pwm pulse output cycle and duty are as follows. pwm pulse output cycle = (n + 1)/f cnt duty = inactive width: active width = (m + 1) : (n + 1) cautions 1. in the pwm output mode, three opera ting clocks (signal selected by ckshn0 to ckshn2 bits) are required for actual transfer of the new value to the register after the cmpn1 register has been rewritten. 2. be sure to set the cmpn1 register when starting the timer count operation (tmhen bit = 1) after the timer count operation was stopped (tmhen bit = 0) (be sure to set again even if setting the same value to the cmpn1 register). .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 373 (2) timing chart the operation timing in the pwm out put mode is as follows. caution the set value (m) of the cm pn1 register and the set value (n ) of the cmpn0 register must always be set within th e following range. 00h .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 374 figure 10-5. operation timing in pwm output mode (2/4) operation when cmpn0 register = ffh, cmpn1 register = 00h count clock cmpn0 tmhen inttmhn tohn (tolevn = 0) 00h 01h ffh 00h 01h 02h ffh 00h ffh 00h 01h 02h cmpn1 ffh 00h 8-bit timer counter hn count value operation when cmpn0 register = ffh, cmpn1 register = feh count clock cmpn0 tmhen inttmhn tohn (tolevn = 0) 00h 01h feh ffh 00h 01h feh ffh 00h 01h feh ffh 00h cmpn1 ffh feh 8-bit timer counter hn count value remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 375 figure 10-5. operation timing in pwm output mode (3/4) operation when cmpn0 register = 01h, cmpn1 register = 00h count clock cmpn0 tmhen inttmhn tohn (tolevn = 0) 01h 00h 01h 00h 01h 00h 00h 01h 00h 01h cmpn1 00h 8-bit timer counter hn count value remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 376 figure 10-5. operation timing in pwm output mode (4/4) operation based on cmpn1 register tr ansitions (cmpn1 register = 01h .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 377 10.4.3 carrier genera tor mode operation the carrier clock generated by 8-bit timer hn is output using the cycle set with 8-bit timer/event counter 5n. in the carrier generator mode, 8-bit timer/ event counter 5n is used to control the extent to wh ich the carrier pulse of 8-bit timer hn is output, and the carrier pulse is output from the tohn output. (1) carrier generation in the carrier generator mode, the cmpn0 register gener ates a waveform with the low-level width of the carrier pulse and the cmpn1 register generates a waveform with the high-level width of the carrier pulse. during 8-bit timer hn operation, the cmpn1 register can be rewritten, but rewriting of the cmpn0 register is prohibited. (2) carrier output control carrier output control is performed wit h the interrupt request signal (inttm 5n) of 8-bit timer/event counter 5n and the tmcycn.nrzbn and tmcycn.rmcn bits. t he output relationships are as follows. rmcn bit nrzbn bit output 0 0 low level output 0 1 high level output 1 0 low level output 1 1 carrier pulse output remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 378 to control carrier pulse output during count operati on, the tmcycn.nrzn and tm cycn.nrzbn bits have a master and slave bit configuration. the nrzn bit is read-only while the nrzbn bit can be read and written. the inttm5n signal is synchronized with the 8-bit timer hn clock and output as the inttm5hn signal. the inttm5hn signal becomes the data transfer signal of the nrzn bit and the value of the nrzbn bit is transferred to the nrzn bit. the transfer timing from the nrzbn bit to the nrzn bit is as follows. figure 10-6. transfer timing 8-bit timer hn count clock tmhen inttm5n inttm5hn nrzn nrzbn rmcn 1 1 1 0 00 <1> <2> <1> the inttm5n signal is synchronized with the count clock of 8-bit timer hn and is output as the inttm5hn signal. <2> the value of the nrzbn bit is transferred to the nrzn bit at the second clock from the rising edge of the inttm5hn signal. cautions 1. do not rewrite the nrzbn bit again until at least the second cl ock after it has been rewritten, or else transfer from the nrzbn bit to the nrzn bit is not guaranteed. 2. when using 8-bit timer/event counter 5n in the carrier generator mode, an interrupt occurs at the timing of <1>. an interrupt o ccurs at a different timing when it is used in other than the carrier generator mode. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 379 (3) usage method any carrier clock can be output from the tohn pin. <1> set each register. figure 10-7. register settings in carrier generator mode ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 380 designating the set value of the cmpn0 register as (n ), the set value of the cm pn1 register as (m), and the count clock frequency as f cnt , the carrier clock output cycle and duty are as follows. carrier clock output cycle = (n + m + 2)/f cnt duty = high level width: carrier clock out put width = (m + 1) : (n + m + 2) caution be sure to set the cmpn1 register when starting the timer count operation (tmhen bit = 1) after the timer count operation w as stopped (tmhen bit = 0) (b e sure to set again even if setting the same value to the cmpn1 register). (4) timing chart the carrier output control timing is as follows. cautions 1. set the values of the cmpn0 and cm pn1 registers in the range of 01h to ffh. 2. in the carrier generator mode, thr ee operating clocks (signal selected by the tmhmdn.ckshn0 to tmhmdn.cks hn2 bits) are required for actual transfer of the new value to the register after the cmpn 1 register has been rewritten. 3. be sure to perform the tmcycn.rmcn bit se tting before the start of the count operation. 4. when using the carrier generator mode, set the 8-bit timer hn c ount clock frequency to six times the 8-bit timer/ event counter 5n count clock frequency or higher. .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 381 figure 10-8. carrier ge nerator mode (1/3) operation when cmpn0 register = n, cmpn1 register = n is set cmpn0 cmpn1 tmhen inttmhn carrier clock 00h n 00h n 00h n 00h n 00h n 00h n n n 8-bit timer 5n count clock tm5n count value cr5n tce5n tohn 0 0 1 1 0 0 1 1 0 0 inttm5n nrzbn nrzn carrier clock 00h 01h l 00h 01h l 00h 01h l 00h 01h 00h 01h l l inttm5hn <1> <2> <3> <4> <5> <6> <7> 8-bit timer hn count clock 8-bit timer counter hn count value <1> when the tmhen bit = 0 and the tce5n bit = 0, the operation of 8-bit timer hn is stopped. <2> when the tmhen bit is set to 1, 8-bit timer hn starts c ounting. the carrier clock is maintained inactive at this time. <3> when the count value of 8-bit timer counter hn and th e set value of the cmpn0 r egister match, the first inttmhn signal is generated, the carrier clock signal is inverted, and the register t hat is compared with 8-bit timer counter hn changes from the cm pn0 register to the cmpn1 register. 8-bit timer counter hn is cleared to 00h. <4> when the count value of 8-bit timer counter hn and t he set value of the cmpn1 register match, the inttmhn signal is generated, the carrier clock signal is invert ed, and the register that is compared with 8-bit timer counter hn changes from the cmpn1 register to the cmpn0 register. 8-bit timer counter hn is cleared to 00h. a carrier clock with a duty of 50% is generated through the repetition of steps <3> and <4>. <5> the inttm5n signal is synchronized with 8-bit timer hn and output as the inttm5hn signal. <6> the inttm5hn signal becomes the data transfer signal of the nrzbn bit, and the va lue of the nrzbn bit is transferred to the nrzn bit. <7> the tohn output is made low level by clearing the nrzn bit to 0. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 382 figure 10-8. carrier ge nerator mode (2/3) operation when cmpn0 register = n, cmpn1 register = m is set n l cmpn0 cmpn1 tmhen inttmhn carrier clock tm5n count value 00h n 00h 01h m 00h n 00h 01h m 00h 00h n m cr5n tce5n tohn 0 0 1 1 0 0 1 1 0 0 inttm5n nrzbn nrzn carrier clock 00h 01h l 00h 01h l 00h 01h l 00h 01h 00h 01h l inttm5hn <1> <2> <3> <4> <5> <6> <7> 8-bit timer 5n count clock 8-bit timer hn count clock 8-bit timer counter hn count value <1> when the tmhen bit = 0 and the tce5n bit = 0, the operation of 8-bit timer hn is stopped. <2> when the tmhen bit is set to 1, 8-bit timer hn starts c ounting. the carrier clock is maintained inactive at this time. <3> when the count value of 8-bit timer counter hn and th e set value of the cmpn0 r egister match, the first inttmhn signal is generated, the carrier clock signal is inverted, and the register t hat is compared with 8-bit timer counter hn changes from the cm pn0 register to the cmpn1 register. 8-bit timer counter hn is cleared to 00h. <4> when the count value of 8-bit timer counter hn and t he set value of the cmpn1 register match, the inttmhn signal is generated, the carrier clock signal is invert ed, and the register that is compared with 8-bit timer counter hn changes from the cmpn1 register to the cmpn0 register. 8-bit timer counter hn is cleared to 00h. a carrier clock with a fixed duty (other than 50%) is generated through the repetiti on of steps <3> and <4>. <5> the inttm5n signal is synchronized with 8-bit timer hn and output as the inttm5hn signal. <6> the carrier is output from the rising edge of t he first carrier clock by setting the nrzn bit to 1. <7> by clearing the nrzn bit to 0, the tohn output is also maintained high level while the carrier clock is high level, and does not change to low level (the high leve l width of the carrier waveform is guaranteed through steps <6> and <7>). remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 10 8-bit timer h preliminary user?s manual u16894ej1v0ud 383 figure 10-8. carrier ge nerator mode (3/3) operation based on cmpn1 register transitions 8-bit timer hn count clock cmpn0 tmhen inttmhn carrier clock 00h 01h n 00h 01h 01h m 00h n 00h l 00h <1> <3>' <4> <3> <2> cmpn1 <5> m n l m (l) 8-bit timer counter hn count value <1> when the tmhen bit is set to 1, counting starts. the carrier clock is maintained inactive at this time. <2> when the count value of 8-bit timer counter hn and t he set value of the cmpn0 r egister match, 8-bit timer counter hn is cleared to 00h and the inttmhn signal is output. <3> the cmpn1 register can be rewri tten during 8-bit timer hn operation, but the changed value (l) is latched. the value of the cmpn1 register is changed when the co unt value of 8-bit timer counter hn and the value of the cmpn1 register prior to the change (m) match (<3>?). <4> when the count value of 8-bit timer counter hn and the value (m) of the cmpn1 re gister match, the inttmhn signal is output, the carrier signal is inverted, and 8-bit timer counter hn is cleared to 00h. <5> the timing at which the count value of 8-bit timer c ounter hn and the set value of the cmpn1 register match again is the changed value (l). remark n = 0, 1 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 384 chapter 11 interval timer, watch timer the v850es/kg1+ includes interval timer brg and a watch timer. interval timer brg can also be used as the source clock of the watch timer. the watch timer can also be used as interval timer wt. two interval timer channels and one watch timer channel can be used at the same time. 11.1 interval timer brg 11.1.1 functions interval timer brg has the following functions. ? ? .com .com .com .com 4 .com u datasheet
chapter 11 interval timer, watch timer preliminary user?s manual u16894ej1v0ud 385 (1) clock control the clock control controls supp ly/stop of the operation clock (f x ) of interval timer brg. (2) 3-bit prescaler the 3-bit prescaler divides f x to generate f x /2, f x /4, and f x /8. (3) selector the selector selects the count clock (f bgcs ) for interval timer brg from f x , f x /2, f x /4, and f x /8. (4) 8-bit counter the 8-bit counter counts the count clock (f bgcs ). (5) output control the output control controls supply of the count clock (f brg ) for the watch timer. (6) prscm register the prscm register is an 8-bit compare re gister that sets the interval time. (7) prsm register the prsm register controls the oper ation of interval timer brg, the selector, and clock supply to the watch timer. .com .com .com .com 4 .com u datasheet
chapter 11 interval timer, watch timer preliminary user?s manual u16894ej1v0ud 386 11.1.3 registers interval timer brg includes the following registers. (1) interval timer brg mode register (prsm) prsm controls the operation of interval timer brg, se lection of count clock, and clock supply to the watch timer. this register can be read or written in 8-bit or 1-bit units. after reset, prsm is cleared to 00h. 0 prsm 0 0 bgce 0 todis bgcs1 bgcs0 operation stopped, 8-bit counter cleared to 01h operate bgce 0 1 control of interval timer operation f x f x /2 f x /4 f x /8 5 mhz 200 ns 400 ns 800 ns 1.6 s 4 mhz 250 ns 500 ns 1 s 2 s bgcs1 0 0 1 1 bgcs0 0 1 0 1 selection of input clock (f bgcs ) note after reset: 00h r/w address: fffff8b0h clock for watch timer not supplied clock for watch timer supplied todis 0 1 control of clock supply for watch timer 10 mhz 100 ns 200 ns 400 ns 800 ns < > .com .com .com .com 4 .com u datasheet
chapter 11 interval timer, watch timer preliminary user?s manual u16894ej1v0ud 387 (2) interval timer brg compare register (prscm) prscm is an 8-bit compare register. this register can be read or written in 8-bit units. after reset, prscm is cleared to 00h. prscm7 prscm prscm6 prscm5 prscm4 prscm3 prscm2 prscm1 prscm0 after reset: 00h r/w address: fffff8b1h caution do not rewrite the prscm regi ster while interval timer brg is operating (prsm.bgce bit = 1). set the prscm register before setting (1) the bgce bit. .com .com .com .com 4 .com u datasheet
chapter 11 interval timer, watch timer preliminary user?s manual u16894ej1v0ud 388 11.1.4 operation (1) operation of interval timer brg set the count clock by using the prsm.bgcs1 and prsm .bgcs0 bits and the 8-bit compare value by using the prscm register. when the prsm.bgce bit is set (1), interval timer brg starts operating. each time the count value of the 8-bit counter and the set value in the prscm register match, an interrupt request signal (intbrg) is generated. at the same time, the 8-bit counter is cleared to 00h and counting is continued. the interval time can be obtained from the following equation. interval time = 2 m n/f x remark m: divided value (set value in the bgcs1 and bgcs0 bits) = 0 to 3 n: set value in prscm register = 1 to 256 (when the set value in the prscm register is 00h, n = 256) f x : main clock oscillation frequency (2) count clock supply for watch timer set the count clock by using the prsm.bgcs1 and prsm .bgcs0 bits and the 8-bit compare value by using the prscm register, so that the count clock frequency (f brg ) of the watch timer is 32.768 khz. set (1) the prsm.todis bit at the same time. when the prsm.bgce bit is set (1), f brg is supplied to the watch timer. f brg is obtained from the following equation. f brg = f x /(2 m+ 1 n) to set f brg to 32.768 khz, perform the following calculat ion to set the bgcs1 and bgcs0 bits and the prscm register. <1> set n = f x /65,536 (round off the decimal) to set m = 0. <2> if n is even, n = n/2 and m = m + 1 <3> repeat step <2> until n is odd or m = 3 <4> set n to the prscm register and m to the bgcs1 and bgcs0 bits. example: when f x = 4.00 mhz <1> n = 4,000,000/65,536 = 61 (r ound off the decimal), m = 0 <2>, <3> since n is odd, the values remain as n = 61, m = 0 <4> the set value in the prscm register: 3 dh (61), the set values in the bgcs1 and bgcs0 bits: 00 remark m: divided value (set value in the bgcs1 and bgcs0 bits) = 0 to 3 n: set value in prscm register = 1 to 256 (when the set value in the prscm register is 00h, n = 256) f x : main clock oscillation frequency .com .com .com .com 4 .com u datasheet
chapter 11 interval timer, watch timer preliminary user?s manual u16894ej1v0ud 389 11.2 watch timer 11.2.1 functions the watch timer has the following functions. ? ? .com .com .com .com 4 .com u datasheet
chapter 11 interval timer, watch timer preliminary user?s manual u16894ej1v0ud 390 (1) 11-bit prescaler the 11-bit prescaler generates a clock of f w /2 4 to f w /2 11 by dividing f w . (2) 5-bit counter the 5-bit counter generates the watch timer interru pt request signal (intwt) at intervals of 2 4 /f w , 2 5 /f w , 2 13 /f w , or 2 14 /f w by counting f w or f w /2 9 . (3) selectors the watch timer has the following four selectors. ? selector that selects the main clo ck (the clock from interval timer brg (f brg ) or the subclock (f xt )) as the clock for the watch timer. ? selector that selects f w or f w /2 9 as the count clock frequency of the 5-bit counter ? selector that selects 2 4 /f w or 2 13 /f w , or 2 5 /f w or 2 14 /f w as the intwt signal generation time interval. ? selector that selects the generation time interval of the interval timer wt inte rrupt request signal (intwti) from 2 4 /f w to 2 11 /f w . (4) 8-bit counter the 8-bit counter counts the count clock (f bgcs ). (5) wtm register the wtm register is an 8-bit register that controls the operation of the watch timer/interval timer wt and sets the interval of interrupt request signal generation. 11.2.3 register the watch timer includes the following register. (1) watch timer operation mode register (wtm) this register enables or disables the count clock and operation of the watch ti mer, sets the interval time of the 11-bit prescaler, controls the operation of the 5-bit counter, and sets the time of watch timer interrupt request signal (intwt) generation. the wtm register can be read or written in 8-bit or 1-bit units. after reset, wtm is cleared to 00h. .com .com .com .com 4 .com u datasheet
chapter 11 interval timer, watch timer preliminary user?s manual u16894ej1v0ud 391 wtm7 2 4 /f w (488 s: f w = f xt ) 2 5 /f w (977 s: f w = f xt ) 2 6 /f w (1.95 ms: f w = f xt ) 2 7 /f w (3.91 ms: f w = f xt ) 2 8 /f w (7.81 ms: f w = f xt ) 2 9 /f w (15.6 ms: f w = f xt ) 2 10 /f w (31.3 ms: f w = f xt ) 2 11 /f w (62.5 ms: f w = f xt ) 2 4 /f w (488 s: f w = f brg ) 2 5 /f w (977 s: f w = f brg ) 2 6 /f w (1.95 ms: f w = f brg ) 2 7 /f w (3.91 ms: f w = f brg ) 2 8 /f w (7.81 ms: f w = f brg ) 2 9 /f w (15.6 ms: f w = f brg ) 2 10 /f w (31.3 ms: f w = f brg ) 2 11 /f w (62.5 ms: f w = f brg ) wtm7 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 wtm6 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 selection of interval time of prescaler wtm wtm6 wtm5 wtm4 wtm3 wtm2 wtm1 wtm0 wtm5 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 wtm4 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 after reset: 00h r/w address: fffff680h < > < > .com .com .com .com 4 .com u datasheet
chapter 11 interval timer, watch timer preliminary user?s manual u16894ej1v0ud 392 11.2.4 operation (1) operation as watch timer the watch timer generates an interrupt re quest at fixed time intervals. the watch timer operates using time intervals of 0.25 or 0.5 seconds with the subclock (32.768 khz). the count operation starts when the wtm.wtm0 and wtm. wtm1 bits are set to 11. when these bits are cleared to 00, the 11-bit prescaler and 5-bit count er are cleared and the count operation stops. the 5-bit counter can be cleared to synchronize the time by clearing the wtm1 bit to 0 when the watch timer and interval timer wt operate simultaneously. at this ti me, an error of up to 15.6 ms may occur in the watch timer, but interval timer wt is not affected. (2) operation as interval timer the watch timer can also be used as an interval timer that repeatedly generates an interrupt request signal (intwti) at intervals specified by a count value set in advance. the interval time can be selected by the wtm.wtm4 to wtm.wtm7 bits. table 11-1. interval ti me of interval timer wtm7 wtm6 wtm5 wtm4 interval time 0 0 0 0 2 4 1/f w 488 s (operating at f w = f xt = 32.768 khz) 0 0 0 1 2 5 1/f w 977 s (operating at f w = f xt = 32.768 khz) 0 0 1 0 2 6 1/f w 1.95 ms (operating at f w = f xt = 32.768 khz) 0 0 1 1 2 7 1/f w 3.91 ms (operating at f w = f xt = 32.768 khz) 0 1 0 0 2 8 1/f w 7.81 ms (operating at f w = f xt = 32.768 khz) 0 1 0 1 2 9 1/f w 15.6 ms (operating at f w = f xt = 32.768 khz) 0 1 1 0 2 10 1/f w 31.3 ms (operating at f w = f xt = 32.768 khz) 0 1 1 1 2 11 1/f w 62.5 ms (operating at f w = f xt = 32.768 khz) 1 0 0 0 2 4 1/f w 488 s (operating at f w = f brg = 32.768 khz) 1 0 0 1 2 5 1/f w 977 s (operating at f w = f brg = 32.768 khz) 1 0 1 0 2 6 1/f w 1.95 ms (operating at f w = f brg = 32.768 khz) 1 0 1 1 2 7 1/f w 3.91 ms (operating at f w = f brg = 32.768 khz) 1 1 0 0 2 8 1/f w 7.81 ms (operating at f w = f brg = 32.768 khz) 1 1 0 1 2 9 1/f w 15.6 ms (operating at f w = f brg = 32.768 khz) 1 1 1 0 2 10 1/f w 31.3 ms (operating at f w = f brg = 32.768 khz) 1 1 1 1 2 11 1/f w 62.5 ms (operating at f w = f brg = 32.768 khz) remark f w : watch timer clock frequency .com .com .com .com 4 .com u datasheet
chapter 11 interval timer, watch timer preliminary user?s manual u16894ej1v0ud 393 figure 11-3. operation timing of watch timer/interval timer start overflow overflow 0h interrupt time of watch timer (0.5 s) interrupt time of watch timer (0.5 s) interval time (t) interval time (t) nt nt 5-bit counter count clock f w or f w /2 9 watch timer interrupt intwt interval timer interrupt intwti remarks 1. assuming that the interrupt time of the watch timer is set to 0.5 seconds. 2. f w : watch timer clock frequency values in parentheses apply when count clock f w = 32.768 khz. n: number of interval timer wt operations 11.3 cautions (1) operation as watch timer some time is required before the first watch timer inte rrupt request signal (intwt) is generated after operation is enabled (wtm.wtm1 and wtm.wtm0 bits = 11). figure 11-4. example of generation of watc h timer interrupt request signal (intwt) (when interrupt period = 0.5 s) it takes 0.515625 (max.) seconds for the first intwt signal to be generated (2 9 .com .com .com .com 4 .com u datasheet
chapter 11 interval timer, watch timer preliminary user?s manual u16894ej1v0ud 394 (2) when watch timer and interval timer brg operate simultaneously when using the subclock as the count clock for the watch ti mer, the interval time of interval timer brg can be set to any value. changing the interval time does not a ffect the watch timer (before changing the interval time, stop operation). when using the main clock as the count clock for the watch timer, set the interval time of interval timer brg to approximately 65,536 hz. do not change this value. (3) when interval timer brg and inter val timer wt operate simultaneously when using the subclock as the count clock for interval ti mer wt, the interval times of interval timers brg and wt can be set to any values. they can also be cha nged later (before changing the value, stop operation). when using the main clock as the count clock for interval timer wt, the interval time of interval timer brg can be set to any value, but cannot be changed later (it can be changed only when interval timer wt stops operation). the interval time of interval timer wt can be set to .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 395 chapter 12 watchdog timer functions 12.1 watchdog timer 1 12.1.1 functions watchdog timer 1 has the following operation modes. ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 12 watchdog timer functions preliminary user?s manual u16894ej1v0ud 396 figure 12-1. block diagra m of watchdog timer 1 wdtm14 wdtm13 run1 2 intwdtm1 wdtres1 3 wdcs1 wdcs0 wdcs2 f xw /2 21 f xw /2 15 f xw /2 16 f xw /2 17 f xw /2 18 f xw /2 19 f xw /2 14 f xw /2 13 intwdt1 f xw internal bus watchdog timer mode register 1 (wdtm1) watchdog timer clock selection register (wdcs) output controller prescaler clear selector remark intwdtm1: request signal for maskable interrupt through watchdog timer 1 overflow intwdt1: request signal for non-maskable inte rrupt through watchdog timer 1 overflow wdtres1: reset signal through watchdog timer 1 overflow f xw = f x : watchdog timer 1 clock frequency .com .com .com .com 4 .com u datasheet
chapter 12 watchdog timer functions preliminary user?s manual u16894ej1v0ud 397 12.1.2 configuration watchdog timer 1 consists of the following hardware. table 12-1. configuration of watchdog timer 1 item configuration control registers watchdog timer clock select ion register (wdcs) watchdog timer mode register 1 (wdtm1) 12.1.3 registers the registers that control watchdo g timer 1 are as follows. ? watchdog timer clock selection register (wdcs) ? watchdog timer mode register 1 (wdtm1) (1) watchdog timer clock selection register (wdcs) this register sets the overflow time of watchdog timer 1 and the interval timer. the wdcs register can be read or wri tten in 8-bit or 1-bit units. after reset, wdcs is cleared to 00h. 0 wdcs 0 0 0 0 wdcs2 wdcs1 wdcs0 2 13 /f xw 2 14 /f xw 2 15 /f xw 2 16 /f xw 2 17 /f xw 2 18 /f xw 2 19 /f xw 2 21 /f xw wdcs2 0 0 0 0 1 1 1 1 overflow time of watchdog timer 1/interval timer wdcs1 0 0 1 1 0 0 1 1 wdcs0 0 1 0 1 0 1 0 1 4 mhz 10 mhz 5 mhz 2.048 ms 4.096 ms 8.192 ms 16.38 ms 32.77 ms 65.54 ms 131.1 ms 524.3 ms 1.638 ms 3.277 ms 6.554 ms 13.11 ms 26.21 ms 52.43 ms 104.9 ms 419.4 ms 0.819 ms 1.638 ms 3.277 ms 6.554 ms 13.11 ms 26.2 ms 52.43 ms 209.7 ms f xw after reset: 00h r/w address: fffff6c1h remark f xw = f x : watchdog timer 1 clock frequency .com .com .com .com 4 .com u datasheet
chapter 12 watchdog timer functions preliminary user?s manual u16894ej1v0ud 398 (2) watchdog timer mode register 1 (wdtm1) this register sets the watchdog timer 1 operati on mode and enables/disables count operations. this register is a special register that c an be written only in a special sequence (refer to 3.4.7 special registers ). the wdtm1 register can be read or written in 8-bit or 1-bit units. after reset, wdtm1 is cleared to 00h. caution when the main clock is stopped and the cpu is operating on the subclock, do not access the wdtm1 register using an access method that causes a wait. for details, refer to 3.4.8 (2). run1 stop counting clear counter and start counting run1 0 1 selection of operation mode of watchdog timer 1 note 1 wdtm1 0 0 wdtm14 wdtm13 0 0 0 after reset: 00h r/w address: fffff6c2h interval timer mode (upon overflow, maskable interrupt intwdtm1 is generated.) watchdog timer mode 1 note 3 (upon overflow, non-maskable interrupt intwdt1 is generated.) watchdog timer mode 2 (upon overflow, reset operation wdtres1 is started.) wdtm14 0 0 1 1 wdtm13 0 1 0 1 selection of operation mode of watchdog timer 1 note 2 < > notes 1. once the run1 bit is set (to 1), it c annot be cleared (to 0) by software. therefore, when counti ng is started, it cannot be stopped except by reset. 2. once the wdtm13 and wdtm14 bits are set (to 1), they cannot be cleared (to 0) by software and can be cleared only by reset. 3. for non-maskable interrupt servicing due to non -maskable interrupt request signal (intwdt1), refer to 21.10 cautions . .com .com .com .com 4 .com u datasheet
chapter 12 watchdog timer functions preliminary user?s manual u16894ej1v0ud 399 12.1.4 operation (1) operation as watchdog timer 1 watchdog timer 1 operation to detect a program loop is selected by setting the wdtm1.wdtm14 bit to 1. the count clock (program loop detection time interv al) of watchdog timer 1 can be selected using the wdcs.wdcs0 to wdcs.wdcs2 bits. the count operation is started by setting the wdtm1.run1 bit to 1. when, after the count operation is st arted, the run1 bit is again set to 1 within the set program loop detection time interval, watchdog timer 1 is cleared and the count operation starts again. if the program loop detection time is exceeded without run 1 bit being set to 1, a reset signal (wdtres1) or a non-maskable interrupt request signal (intwdt1 ) is generated depending on the value of the wdtm1.wdtm13 bit. the count operation of watchdog timer 1 stops in t he stop mode and idle mode. set the run1 bit to 1 before the stop mode or idle mode is entered in order to clear watchdog timer 1. because watchdog timer 1 operates in the halt mode, make sure that an overflow will not occur during halt. cautions 1. when the subclock is selected for the cpu cl ock, the count operation of watchdog timer 1 is stopped (the value of watc hdog timer 1 is maintained). 2. for non-maskable interrupt servicing due to the intwdt1 signal, refer to 21.10 cautions. table 12-2. program loop detect ion time of watchdog timer 1 program loop detection time clock f xw = 4 mhz f xw = 5 mhz f xw = 10 mhz 2 13 /f xw 2.048 ms 1.638 ms 0.819 ms 2 14 /f xw 4.096 ms 3.277 ms 1.683 ms 2 15 /f xw 8.192 ms 6.554 ms 3.277 ms 2 16 /f xw 16.38 ms 13.11 ms 6.554 ms 2 17 /f xw 32.77 ms 26.21 ms 13.11 ms 2 18 /f xw 65.54 ms 52.43 ms 26.21 ms 2 19 /f xw 131.1 ms 104.9 ms 52.43 ms 2 21 /f xw 524.3 ms 419.4 ms 209.7 ms remark f xw = f x : watchdog timer 1 clock frequency .com .com .com .com 4 .com u datasheet
chapter 12 watchdog timer functions preliminary user?s manual u16894ej1v0ud 400 (2) operation as interval timer watchdog timer 1 can be made to operate as an interval ti mer that repeatedly generates interrupts using the count value set in advance as the interval, by clearing the wdtm1.wdtm14 bit to 0. when watchdog timer 1 operates as an interval time r, the interrupt mask flag (wdtmk) and priority specification flags (wdtpr0 to wdtpr2) of the wdti c register are valid and maskable interrupt request signals (intwdtm1) can be generated. the default priority of the intwdtm1 signal is set to the highest level among the maskable interrupt request signals. the interval timer continues to operate in the halt mode, but it stops operating in the stop mode and the idle mode. cautions 1. once the wdtm14 bit is set to 1 (thereby selecting the watc hdog timer 1 mode), the interval timer mode is not entered as long as reset is not performed. 2. when the subclock is sel ected for the cpu clock, the count operation of the watchdog timer 1 stops (the value of the wa tchdog timer is maintained). table 12-3. interval ti me of interval timer interval time clock f xw = 4 mhz f xw = 5 mhz f xw = 10 mhz 2 13 /f xw 2.048 ms 1.638 ms 0.819 ms 2 14 /f xw 4.096 ms 3.277 ms 1.638 ms 2 15 /f xw 8.192 ms 6.554 ms 3.277 ms 2 16 /f xw 16.38 ms 13.11 ms 6.554 ms 2 17 /f xw 32.77 ms 26.21 ms 13.11 ms 2 18 /f xw 65.54 ms 52.43 ms 26.21 ms 2 19 /f xw 131.1 ms 104.9 ms 52.43 ms 2 21 /f xw 524.3 ms 419.4 ms 209.7 ms remark f xw = f x : watchdog timer 1 clock frequency .com .com .com .com 4 .com u datasheet
chapter 12 watchdog timer functions preliminary user?s manual u16894ej1v0ud 401 12.2 watchdog timer 2 12.2.1 functions watchdog timer 2 has the following functions. ? ? .com .com .com .com 4 .com u datasheet
chapter 12 watchdog timer functions preliminary user?s manual u16894ej1v0ud 402 12.2.2 configuration watchdog timer 2 consists of the following hardware. table 12-4. configuration of watchdog timer 2 item configuration control registers watchdog timer mode register 2 (wdtm2) watchdog timer enable register (wdte) 12.2.3 registers (1) watchdog timer mode register 2 (wdtm2) this register sets the overflow time and operation clock of watchdog timer 2. the wdtm2 register can be read or writt en in 8-bit units. this register c an be read any number of times, but it can be written only once following reset release. after reset, wdtm2 is set to 67h. caution when the main clock is stopped and the cpu is operating on the subclock, do not access the wdtm2 register using an access method that causes a wait. for details, refer to 3.4.8 (2). 0 wdtm2 wdm21 wdm20 wdcs24 wdcs23 wdcs22 wdcs21 wdcs20 after reset: 67h r/w address: fffff6d0h stops operation non-maskable interrupt request mode (generation of intwdt2) reset mode (generation of wdtres2) wdm21 0 0 1 wdm20 0 1 ? selection of operation mode of watchdog timer 2 cautions 1. to stop the operation of watchdog ti mer 2, write ?1fh? to the wdtm2 register. 2. for details about bits wdcs0 to wdcs4, refer to table 12-5 watchdog timer 2 clock selection. 3. if the wdtm2 register is written twice afte r a reset, an overflow signal is forcibly output. .com .com .com .com 4 .com u datasheet
chapter 12 watchdog timer functions preliminary user?s manual u16894ej1v0ud 403 table 12-5. watchdog timer 2 clock selection wdcs24 wdcs23 wdcs22 wdcs21 wdcs20 selected clock program loop detection time 0 0 0 0 0 2 12 /f r 17.1 ms (f r = 240 khz (typ.)) 0 0 0 0 1 2 13 /f r 34.1 ms (f r = 240 khz (typ.)) 0 0 0 1 0 2 14 /f r 68.2 ms (f r = 240 khz (typ.)) 0 0 0 1 1 2 15 /f r 136.5 ms (f r = 240 khz (typ.)) 0 0 1 0 0 2 16 /f r 273.1 ms (f r = 240 khz (typ.)) 0 0 1 0 1 2 17 /f r 546.1 ms (f r = 240 khz (typ.)) 0 0 1 1 0 2 18 /f r 1092.3 ms (f r = 240 khz (typ.)) 0 0 1 1 1 2 19 /f r 2184.5 ms (f r = 240 khz (typ.)) 0 1 0 0 0 2 9 /f xt 15.625 ms (f xt = 32.768 khz) 0 1 0 0 1 2 10 /f xt 31.25 ms (f xt = 32.768 khz) 0 1 0 1 0 2 11 /f xt 62.5 ms (f xt = 32.768 khz) 0 1 0 1 1 2 12 /f xt 125 ms (f xt = 32.768 khz) 0 1 1 0 0 2 13 /f xt 250 ms (f xt = 32.768 khz) 0 1 1 0 1 2 14 /f xt 500 ms (f xt = 32.768 khz) 0 1 1 1 0 2 15 /f xt 1000 ms (f xt = 32.768 khz) 0 1 1 1 1 2 16 /f xt 2000 ms (f xt = 32.768 khz) 1 .com .com .com .com 4 .com u datasheet
chapter 12 watchdog timer functions preliminary user?s manual u16894ej1v0ud 404 12.2.4 operation watchdog timer 2 automatically starts in t he reset mode following reset release. the wdtm2 register can be written to only once following reset through byte access. to use watchdog timer 2, write the operation mode and the interval time to the wdtm 2 register using 8-bit memory manipulation instructions. after this is done, the operation of watchdog timer 2 cannot be stopped. the watchdog timer 2 program loop detection time in terval can be selected by the wdtm2.wdcs24 to wdtm2.wdcs20 bits. writing ach to the wdte register clears the counter of watchdog timer 2 and starts the count operation again. after the count operat ion starts, write ach to the wdte r egister within the set program loop detection time interval. if the program loop detection time is exceeded without a ch being written to the wdte register, a reset signal (wdtres2) or non-maskable interrupt request signal (i ntwdt2) is generated depending on the set value of the wdtm2.wdm21 and wdtm2.wdm20 bits. to not use watchdog timer 2, writ e 1fh to the wdtm2 register. for non-maskable interrupt servicing when the non -maskable interrupt request mode is set, refer to 21.10 cautions . because watchdog timer 2 operates in the halt/idle/stop mode, exercise care that the timer does not overflow in the halt/idle/stop mode. .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 405 chapter 13 real-time output function (rto) 13.1 function the real-time output function (rto) transfers preset data to the rtbl0 and rtbh0 registers, and then transfers this data with hardware to an external device via the r eal-time output latches, upon occurr ence of a timer interrupt. the pins through which the data is output to an external device constitute a port called a real-time output port. because rto can output signal without jitter, it is suitable for controlling a stepping motor. in the v850es/kg1+, a 6-bit real-time output port channel is provided. the real-time output port can be se t in the port mode or real-time output port mode in 1-bit units. the block diagram of rto is shown below. figure 13-1. block diagram of rto real-time buffer register 0h (rtbh0) real-time output latch 0h selector inttm000 inttm50 inttm51 real-time output latch 0l rtpoe0 rtpeg0 byte0 extr0 real-time output port control register 0 (rtpc0) transfer trigger (h) transfer trigger (l) rtpm05 rtpm04 rtpm03 rtpm02 rtpm01 rtpm00 real-time output port mode register 0 (rtpm0) 4 2 2 4 internal bus real-time buffer register 0l (rtbl0) rtpout04, rtpout05 rtpout00 to rtpout03 .com .com .com .com 4 .com u datasheet
chapter 13 real-time output function (rto) preliminary user?s manual u16894ej1v0ud 406 13.2 configuration rto consists of the following hardware. table 13-1. configuration of rto item configuration registers real-time output buffe r register 0 (rtbl0, rtbh0) control registers real-time output port mode register 0 (rtpm0) real-time output port control register 0 (rtpc0) (1) real-time output buffer register 0 (rtbl0, rtbh0) rtbl0 and rtbh0 are 4-bit registers t hat hold output data in advance. these registers are mapped to independent addresses in the peripheral i/o register area. they can be read or written in 8-bit or 1-bit units. if an operation mode of 4 bits .com .com .com .com 4 .com u datasheet
chapter 13 real-time output function (rto) preliminary user?s manual u16894ej1v0ud 407 table 13-2. operation during manipul ation of rtbl0 and rtbh0 registers read write note operation mode register to be manipulated higher 4 bits lower 4 bits higher 4 bits lower 4 bits rtbl0 rtbh0 rtbl0 invalid rtbl0 4 bits 1 channel, 2 bits 1 channel rtbh0 rtbh0 rtbl0 rtbh0 invalid rtbl0 rtbh0 rtbl0 rtbh0 rtbl0 6 bits 1 channel rtbh0 rtbh0 rtbl0 rtbh0 rtbl0 note after setting the real-time output port, set output data to the rtbl0 and rtbh0 registers by the time a real- time output trigger is generated. 13.3 registers rto is controlled using the foll owing two types of registers. ? real-time output port mode register 0 (rtpm0) ? real-time output port control register 0 (rtpc0) (1) real-time output port mode register 0 (rtpm0) this register selects the real-time output port mode or port mode in 1-bit units. the rtpm0 register can be read or written in 8-bit or 1-bit units. after reset, rtpm0 is cleared to 00h. 0 rtpm0m 0 1 real-time output disabled real-time output enabled control of real-time output port (m = 0 to 5) rtpm0 0 rtpm05 rtpm04 rtpm03 rtpm02 rtpm01 rtpm00 after reset: 00h r/w address: fffff6e4h cautions 1. to reflect real-time output signa ls (rtpout00 to rtpout05) to the pins (rtp00 to rtp05), set them to the r eal-time output port with the pmc5 and pfc5 registers. 2. by enabling real-time output operation (rtpc0.rtpoe0 bit = 1), the bits specified as real-time outpu t enabled perform real-time output, and the bits specified as real-time out put disabled output 0. 3. if real-time output is disabled (r tpoe0 bit = 0), real-time output signals (rtpout00 to rtpout05) all output 0, regardless of the rtpm0 register setting. .com .com .com .com 4 .com u datasheet
chapter 13 real-time output function (rto) preliminary user?s manual u16894ej1v0ud 408 (2) real-time output port control register 0 (rtpc0) this register sets the operation mode and ou tput trigger of the real-time output port. the relationship between the operation mo de and output trigger of the real -time output port is as shown in table 13-3. the rtpc0 register can be read or written in 8-bit or 1-bit units. after reset, rtpc0 is cleared to 00h. rtpoe0 disables operation note 2 enables operation rtpoe0 0 1 control of real-time output operation rtpc0 rtpeg0 byte0 extr0 note 1 00 0 0 falling edge note 3 rising edge rtpeg0 0 1 valid edge of inttm000 signal 4 bits 1 channel, 2 bits 1 channel 6 bits 1 channel byte0 0 1 specification of channel configuration for real-time output after reset: 00h r/w address: fffff6e5h < > notes 1. for the extr0 bit, refer to table 13-3 . 2. when real-time output operation is dis abled (rtpoe0 bit = 0), real-time output signals (rtpout00 to rtpout05) all output 0. 3. the inttm000 signal is output for 1 clock of the count clock selected with 16-bit timer/event counter 00. caution perform the settings for the rtpeg0, byte0, and extr0 bits only when the rtpoe0 bit = 0. table 13-3. operation modes and output triggers of real-time output port byte0 extr0 operation mode rtbh0 (rtp 04, rtp05) rtbl0 (rtp00 to rtp03) 0 inttm51 inttm50 0 1 4 bits 1 channel, 2 bits 1 channel inttm50 inttm000 0 inttm50 1 1 6 bits 1 channel inttm000 .com .com .com .com 4 .com u datasheet
chapter 13 real-time output function (rto) preliminary user?s manual u16894ej1v0ud 409 13.4 operation if the real-time output operation is enabled by setting the rtpc0.rtpoe0 bi t to 1, the data of the rtbh0 and rtbl0 registers is transferred to the real-time output latch in synchronizati on with the generation of the selected transfer trigger (set by the rtpc0.extr0 and rtpc0.byte0 bits). of the trans ferred data, only the data of the bits specified as real-time output enabled by the rtpm0 register is output from bi ts rtpout00 to rtpo ut05. the bits specified as real-time output disabled by the rtpm0 register output 0. if the real-time output operatio n is disabled by clearing the rtpoe0 bi t to 0, the rtpout00 to rtpout05 signals output 0 regardless of the setti ng of the rtpm0 register. figure 13-2. example of operation timing of rto0 (when extr0 and byte0 bits = 00) abababab d01 d02 d03 d04 d11 d12 d13 d14 d11 d12 d13 d14 d01 d02 d03 d04 inttm51 (internal) inttm50 (internal) cpu operation rtbh0 rtbl0 rt output latch 0 (h) rt output latch 0 (l) a: software processing by inttm51 interrupt request signal (write to rtbh0 register) b: software processing by inttm50 interrupt request signal (write to rtbl0 register) remark for the operation during standby, refer to chapter 23 standby function . .com .com .com .com 4 .com u datasheet
chapter 13 real-time output function (rto) preliminary user?s manual u16894ej1v0ud 410 13.5 usage (1) disable real-time output. clear the rtpc0.rtpoe0 bit to 0. (2) perform initializa tion as follows. ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 13 real-time output function (rto) preliminary user?s manual u16894ej1v0ud 411 13.7 security function a circuit that sets the pin outputs to high impedance as a security functi on for when malfunctions of a stepping motor controlled by rto occur is provided on chip. it fo rcibly resets the pins allocated to rtp00 to rtp05 via external interrupt intp0 pin edge detection, placing them in t he high-impedance state. the ports (p50 to p55 pins) placed in high impedance by intp0 note 1 pin are initialized note 2 , so settings for these ports must be performed again. notes 1. regardless of the port settings, p50 to p55 pins are all placed in high impedance via the intp0 pin. 2. the bits that are initialized are a ll the bits corresponding to p50 to p 55 pins of the following registers. ? p5 register ? pm5 register ? pmc5 register ? pu5 register ? pfc5 register ? pf5 register the block diagram of the security function is shown below. figure 13-3. block diagra m of security function edge detection intc intp0 rtost0 rtpout00 to rtpout05 rtp00 to rtp05 ev dd r 6 this function is set with the pllctl.rtost0 bit. .com .com .com .com 4 .com u datasheet
chapter 13 real-time output function (rto) preliminary user?s manual u16894ej1v0ud 412 (1) pll control register (pllctl) the pllctl register is an 8-bit register that controls the rto security function and pll. this register can be read or writt en in 8-bit or 1-bit units. after reset, pllctl is set to 01h. 0 pllctl 0 0 0 0 rtost0 selpll note pllon note intp0 pin is not used as trigger for security function intp0 pin is used as trigger for security function rtost0 0 1 control of rtp00 to rtp05 security function after reset: 01h r/w address: fffff806h < > < > < > note for details on the selpll and pllon bits, refer to chapter 6 clock generation function . cautions 1. before outputting a value to the real-time output po rts (rtp00 to rtp05), select the intp0 pin interrupt edge det ection and then set the rtost0 bit. 2. to set again the ports (p50 to p 55 pins) as real-time output ports after placing them in high impedance via th e intp0 pin, first cancel the security function. [procedure to set ports again] <1> cancel the security function and enable port setting by clearing the rtost0 bit to 0. <2> set the rtost0 bit to 1 (only if required) <3> set again as real-time output port. 3. be sure to clear bits 4 to 7 to 0. changing bit 3 does not affect the operation. .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 413 chapter 14 a/d converter 14.1 overview the a/d converter converts analog input signals into digital values and has an 8-channel (ani0 to ani7) configuration. the a/d converter has the following functions. operating voltage (av ref0 ): 2.7 to 5.5 v successive approximation method 10-bit a/d converter analog input pin: 8 trigger mode: ? software trigger mode ? timer trigger mode (inttm010) ? external trigger mode (adtrg pin) operation mode ? select mode ? scan mode a/d conversion time: ? normal mode: 14 to 100 s @ 4.0 v av ref0 5.5 v 17 to 100 s @ 2.7 v av ref0 < 4.0 v ? high-speed mode: 3 to 100 s @ 4.5 v av ref0 5.5 v 4.8 to 100 s @ 4.0 v av ref0 < 4.5 v 6 to 100 s @ 2.85 v av ref0 < 4.0 v 14 to 100 s @ 2.7 v av ref0 < 2.85 v power fail detection function 14.2 functions (1) 10-bit resolution a/d conversion 1 analog input channel is selected from the ani0 to ani7 pins, and an a/d conversion operation with resolution of 10 bits is repeatedly executed. every ti me a/d conversion is completed, an interrupt request signal (intad) is generated. (2) power fail detection function this is a function to detect low voltage in a battery. the results of a/d conversi on (the value in the adcrh register) and the pft register are compared, and in tad signal is generated only when the comparison conditions match. .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 414 14.3 configuration the a/d converter consists of the following hardware. figure 14-1. block diag ram of a/d converter ani0 ani1 ani2 ani3 ani4 ani5 ani6 ani7 av ref0 av ss intad adcs bit 3 ads2 ads1 ads0 ega1 ega0 trg adtmd fr0 adhs1 adhs0 adcs2 adcs admd fr2 fr1 sample & hold circuit av ss voltage comparator controller edge detector adtrg inttm010 adcr/adcrh register pft register ads register adm register pfen pfcm pfm register internal bus sar register comparator tap selector selector selector table 14-1. registers of a/ d converter used by software item configuration registers a/d conversion result register (adcr) a/d conversion result register h (adcrh): only higher 8 bits can be read power fail comparison threshold register (pft) a/d converter mode register (adm) analog input channel specification register (ads) power fail comparison mode register (pfm) .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 415 (1) ani0 to ani7 pins these are analog input pins for the 8 channels of the a/ d converter. they are used to input analog signals to be converted into digital signals. pins other than thos e selected as analog input by the ads register can be used as input ports. (2) sample & hold circuit the sample & hold circuit samples the analog input si gnals selected by the input circuit and sends the sampled data to the voltage comparator. this ci rcuit holds the sampled analog input voltage during a/d conversion. (3) series resistor string the series resistor string is connected between av ref0 and av ss and generates a voltage for comparison with the analog input signal. (4) voltage comparator the voltage comparator com pares the value that is sampled and hel d with the output voltage of the series resistor string. (5) successive approximation register (sar) this register compares the sampled analog voltage value with the voltage value from the series resistor string, and converts the comparison result starti ng from the most significant bit (msb). when the least significant bit (lsb) has been converted to a digital value (end of a/d conversion), the contents of the sar register are transfe rred to the adcr register. the sar register cannot be read or written directly. (6) a/d conversion result register (adcr) , a/d conversion result register h (adcrh) each time a/d conversion ends, the conversion results are loaded from the successive approximation register and the results of a/d conversion are held in the higher 10 bits of this regist er (the lower 6 bits are fixed to 0). (7) controller the controller compares the a/d c onversion results (the value of the adcrh register) with the value of the pft register when a/d conversion ends or the power fail detection function is used. it generates intad signal only when the comparison conditions match. (8) av ref0 pin this is the analog power supply pin/reference voltage input pin of the a/d converter. always use the same potential as the v dd pin even when not using the a/d converter. the signals input to the ani0 to ani7 pins are conv erted into digital signals based on the voltage applied across av ref0 and av ss . (9) av ss pin this is the ground potential pin of the a/d converter. always use the same potential as the v ss pin even when not using the a/d converter. .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 416 (10) a/d converter mode register (adm) this register sets the conversion time of the analog input to be converted to a digital signal and the conversion operation start/stop. (11) analog input channel sp ecification register (ads) this register specifies the input port for the analog voltage to be converted to a digital signal. (12) power fail comparis on mode register (pfm) this register sets the power fail detection mode. (13) power fail comparison threshold register (pft) this register sets the threshold to be compared with the adcr register. 14.4 registers the a/d converter is controlle d by the following registers. ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 417 (1) a/d converter mode register (adm) this register sets the conversion time of the analog input signal to be convert ed into a digital signal as well as conversion start and stop. the adm register can be read or wr itten in 8-bit or 1-bit units. after reset, adm is cleared to 00h. adcs adcs 0 1 conversion operation stopped conversion operation enabled control of a/d conversion operation adm admd fr2 note 1 fr1 note 1 fr0 note 1 adhs1 note 1 adhs0 note 1 adcs2 admd 0 1 select mode scan mode control of operation mode adhs1 0 1 normal mode high-speed mode (valid only when av ref0 4.5 v) selection of 5 v a/d conversion time mode (av ref0 4.5 v) adhs0 0 1 normal mode high-speed mode (valid only when av ref0 2.7 or 2.85 v) selection of 3 v a/d conversion time mode (av ref0 2.7 or 2.85 v) after reset: 00h r/w address: fffff200h adcs2 0 1 reference voltage generator operation stopped reference voltage generator operation enabled control of reference voltage generator for boosting note 2 < > < > notes 1. for details of the fr2 to fr0 bits and the a/d conversion, refer to table 14-2 a/d conversion time . 2. the operation of the reference voltage generator fo r boosting is controlled by the adcs2 bit and it takes 1 or 14 s after operation is started until it is stabilized. therefore, if the adcs bit is set to 1 (a/d conversion is started) at least 1 or 14 s after the adcs2 bit was se t to 1 (reference voltage generator for boosting is on), the first conversion result is valid. cautions 1. changing bits fr2 to fr0, adhs1, a nd adhs0 while the adcs bit = 1 is prohibited (write access to the adm register is enabled and re writing of bits fr2 to fr0, adhs1, and adhs0 is prohibited). 2. setting adhs1 and adhs0 bits to 11 is prohibited. 3. when the main clock is stopped and the cpu is operating on the subclock, do not access the adm register using an access method that causes a wait. for details, refer to 3.4.8 (2). remark f xx : main clock frequency .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 418 table 14-2. a/d conversion time a/d conversion time ( .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 419 (a) controlling reference vo ltage generator for boosting when the adcs2 bit = 0, power to the a/d converter drops. the converter requires a setup time of 14 .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 420 (2) analog input channel specification register (ads) this register specifies the analog vo ltage input port for a/d conversion. the ads register can be read or wr itten in 8-bit or 1-bit units. after reset, ads is cleared to 00h. ega1 note 1 ads ega0 note 1 trg adtmd note 2 0 ads2 ads1 ads0 ani0 ani1 ani2 ani3 ani4 ani5 ani6 ani7 ani0 ani0, ani1 ani0 to ani2 ani0 to ani3 ani0 to ani4 ani0 to ani5 ani0 to ani6 ani0 to ani7 ads2 0 0 0 0 1 1 1 1 ads1 0 0 1 1 0 0 1 1 ads0 0 1 0 1 0 1 0 1 specification of analog input channel select mode scan mode no edge detection falling edge rising edge both rising and falling edges ega1 note 1 0 0 1 1 ega0 note 1 0 1 0 1 specification of external trigger signal (adtrg) edge after reset: 00h r/w address: fffff201h trg 0 1 software trigger mode hardware trigger mode trigger mode selection adtmd note 2 0 1 external trigger (adtrg pin input) timer trigger (inttm010 signal generated) specification of hardware trigger mode notes 1. the ega1 and ega0 bits are valid only when t he hardware trigger mode (trg bit = 1) and external trigger mode (adtrg pin input: adtmd bit = 1) are selected. 2. the adtmd bit is valid only when the hardware trigger mode (trg bit = 1) is selected. cautions 1. when the main clock is stopped and the cpu is operating on the subclock, do not access the ads register using an access method that cau ses a wait. for details, refer to 3.4.8 (2). 2. be sure to clear bit 3 to 0. .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 421 (3) a/d conversion result register, a/d conversion result register h (adcr, adcrh) the adcr and adcrh registers stor e the a/d conversion results. these registers are read-only in 16-bit or 8-bit units. however, specify the adcr register for 16-bit access, and the adcrh register for 8-bit access. in the adcr r egister, the 10 bits of conversion results are read in the higher 10 bits and 0 is read in the lower 6 bits. in the adcrh register, the higher 8 bits of the conversion results are read. after reset, these registers are undefined. after reset: undefined r address: fffff204h adcr ad9 ad8 ad7 ad6 ad0 0 0 0 0 0 0 ad1 ad2 ad3 ad4 ad5 ad9 adcrh ad8 ad7 ad6 ad5 ad4 ad3 ad2 76 54 32 1 0 after reset: undefined r address: fffff205h caution when the main clock is st opped and the cpu is operating on the subclock, do not access the adcr and adcrh registers using an access method that causes a wait. fo r details, refer to 3.4.8 (2). .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 422 the following shows the relationship between the analog input voltage input to the analog input pins (ani0 to ani7) and a/d conversion results (adcr register). sar = int ( ? .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 423 (4) power fail comparison mode register (pfm) this register sets the power fail detection mode. the pfm register compares the value in the p ft register with the val ue of the adcrh register. the pfm register can be read or wr itten in 8-bit or 1-bit units. after reset, pfm is cleared to 00h. pfen pfen 0 1 power fail comparison disabled power fail comparison enabled selection of power fail comparison enable/disable pfm pfcm 0 0 0 0 0 0 pfcm 0 1 interrupt request signal (intad) generated when adcr .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 424 14.5 operation 14.5.1 basic operation <1> select the channel whose analog signal is to be c onverted into a digital signal using the ads register. set the adm.adhs1 or adm.adhs0 bit. <2> set the adm.adcs2 bit to 1 and wait 1 or 14 ? ? .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 425 14.5.2 trigger modes the v850es/kg1+ has the following three trigger modes that set the a/d conver sion start timing. these trigger modes are set by the ads register. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 426 14.5.3 operation modes the following two operation modes are available. t hese operation modes are set by the adm register. ? ? .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 427 (2) scan mode in this mode, the analog signals specified by the ad s register and input from the ani0 pin while the adm.admd bit = 1 are sequentially selected and converted. when conversion of one analog input signal is complete, t he conversion result is st ored in the adcr register and, at the same time, the a/d conversion end interrupt request signal (intad) is generated. the a/d conversion results of all t he analog input signals are stored in t he adcr register. it is therefore recommended to save the contents of the adcr regist er to ram once a/d conversion of one analog input signal has been completed. in the hardware trigger mode (ads.trg bit = 1), the a/ d converter waits for a trigger after it has completed a/d conversion of the analog signals specified by the ads register and input from the ani0 pin. if anything is written to the adm, ads, pfm, and pft r egisters during conversion, a/ d conversion is aborted. in the software trigger mode, a/d conv ersion is started from the beginni ng again. in the hardware trigger mode, the a/d converter waits for a trigger. conversion starts again from the ani0 pin. if the trigger is detected during conversion in hardwar e trigger mode, a/d conver sion is aborted and started again from the beginning (ani0 pin). .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 428 figure 14-5. example of scan mode operati on timing (ads.ads2 to ads.ads0 bits = 0011b) (a) timing example a/d conversion data 1 (ani0) data 2 (ani1) data 3 (ani2) data 4 (ani3) data 1 (ani0) data 2 (ani1) data 3 (ani2) data 4 (ani3) adcr intad conversion start set adcs bit = 1 conversion end ani3 ani0 ani1 ani2 data 1 data 2 data 3 data 4 data 6 data 5 data 7 (b) block diagram a/d converter adcr register analog input pin ani0 ani1 ani2 ani3 ani4 ani5 ani6 ani7 adcr .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 429 14.5.4 power fail detection function the conversion end interrupt request si gnal (intad) can be controlled as fo llows using the pfm and pft registers. ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 430 14.5.5 setting method the following describes how to set registers. (1) when using the a/d con verter for a/d conversion <1> set (1) the adm.adcs2 bit. <2> select the channel and conversion time by setting the ads.ads2 to ads.ads0 bits and the adm.adhs1, adm.adhs0, and adm.fr2 to adm.fr0 bits. <3> set (1) the adm.adcs bit. <4> transfer the a/d conversion data to the adcr register. <5> an interrupt request signal (intad) is generated. <6> change the channel by setting the ads2 to ads0 bits. <7> transfer the a/d conversion data to the adcr register. <8> the intad signal is generated. <9> clear (0) the adcs bit. <10> clear (0) the adcs2 bit. cautions 1. the time taken from <1> to <3> must be 1 or 14 s or longer. 2. steps <1> and <2> may be reversed. 3. step <1> may be omitted. however, if om itted, do not use the first conversion result after <3>. 4. the time taken from <4> to <7> is differe nt from the conversion time set by the adhs1, adhs0, and fr2 to fr0 bits. the time taken for <6> and <7> is the c onversion time set by the adhs1, adhs0, and fr2 to fr0 bits. (2) when using the a/d converter fo r the power fail detection function <1> set (1) the pfm.pfen bit. <2> set the power fail comparison conditions by using the pfm.pfcm bit. <3> set (1) the adm.adcs2 bit. <4> select the channel and conversion time by setting the ads.ads2 to ads.ads0 bits and the adm.adhs1, adm.adhs0, and adm.fr2 to adm.fr0 bits. <5> set the threshold value in the pft register. <6> set (1) the adm.adcs bit. <7> transfer the a/d conversion data to the adcr register. <8> compare the adcrh register with the pft register. an interrupt request signal (intad) is generated when the conditions match. <9> change the channel by setting the ads2 to ads0 bits. <10> transfer the a/d conversion data to the adcr register. <11> the adcrh register is compared with the pft regi ster. when the conditions match, an intad signal is generated. <12> clear (0) the adcs bit. <13> clear (0) the adcs2 bit. remark if the operation of the power fail detection function is enabled, all the a/ d conversion results are compared, regardless of whether the select mode or scan mode is set. .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 431 14.6 cautions (1) power consumpti on in standby mode the operation of the a/d converter st ops in the standby mode. at this time, the power consumption can be reduced by stopping the conversion operation (the adm.adcs bit = 0). figure 14-7 shows an example of how to reduce the power consumpti on in the standby mode. figure 14-7. example of how to redu ce power consumption in standby mode adcs series resistor string av ref0 p-ch av ss (2) input range of ani0 to ani7 pins use the a/d converter with the ani0 to ani7 pin input voltages within the specified range. if a voltage of av ref0 or higher or av ss or lower (even if within the absolute maxi mum ratings) is input to these pins, the conversion value of the channel is undefined. also, this may affect the conversion value of other channels. (3) conflicting operations (a) conflict between writing to t he adcr register and reading from adcr register upon the end of conversion reading the adcr register takes precedence. after the register has been read, a new conversion result is written to the adcr register. (b) conflict between writing to the adcr register and writing to the adm register or writing to the ads register upon the end of conversion writing to the adm register or ads register takes precedence. the adcr regist er is not written, and neither is the conversion end interr upt request signal (intad) generated. .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 432 (4) measures against noise to keep a resolution of 10 bits, be aware of noise on the av ref0 and ani0 to ani7 pins. the higher the output impedance of the analog input source, the greater the effect of noise. therefore, it is recommended to connect external capacitors as shown in figure 14-8 to reduce noise. figure 14-8. handling of analog input pins av ref0 ani0 to ani7 av ss v ss if noise of av ref0 or higher or av ss or lower could be generated, clamp with a diode with a small v f (0.3 v or lower). reference voltage input c = 100 to 1000 pf (5) ani0/p70 to ani7/p77 pins the analog input pins (ani0 to ani7) function alternately as input port pins (p70 to p77). when performing a/d conversion by selecting any of th e ani0 to ani7 pins, do not execute an input instruction to port 7 during conversion. th is may decrease the conversion resolution. if digital pulses are applied to the pin adjacent to the pin subject to a/d conversi on, the value of the a/d conversion may differ from the expected value because of coupling noise. therefore, do not apply pulses to the pin adjacent to the pin subject to a/d conversion. (6) input impedance of av ref0 pin a series resistor string of tens of k ? is connected between the av ref0 pin and av ss pin. therefore, if the output im pedance of the reference voltage source is high, this will result in a series connection to the series resistor string between the av ref0 pin and av ss pin, resulting in a large reference voltage error. .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 433 (7) interrupt request flag (adic.adif bit) even when the ads register is changed, the adif bit is not cleared (0). therefore, if the analog input pin is changed during a/d conversion, the adif bit may be set (1) because a/d conversion of the previous analog input pin ends immediately before the ads register is rewritten. in a such case, note that if the adif bit is r ead immediately after the ads register ha s been rewritten, the adif bit is set (1) even though a/d conversion of the analog in put pin after the change has not been completed. when stopping a/d conversion once and resuming it, clea r the adif bit (0) before resuming a/d conversion. figure 14-9. a/d conversion end in terrupt request occurrence timing anin anin anin anim anim anin anim anim a/d conversion adcr intad ads rewrite (anin conversion start) ads rewrite (anim conversion start) anim conversion is not complete even though adif is set. remark n = 0 to 7 m = 0 to 7 (8) conversion results immediat ely after a/d conversion start if the adm.adcs bit is set to 1 within 1 or 14 .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 434 (10) a/d converter sampling time a nd a/d conversion start delay time the a/d converter sampling time differs depending on the se t value of the adm register. a delay time exists until actual sampling is started after a/d converter operation is enabled. when using a set in which the a/d conversion time must be strictly observed, care is required for the contents shown in figure 14-10 and table 14-4. figure 14-10. timing of a/d converter sampling and a/d conversion start delay adcs wait period conversion time conversion time register write response time/trigger response time sampling time sampling timing intad adcs bit .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 435 table 14-4. a/d converter conversion time register write response time note trigger response time note adhs1 adhs0 fr2 fr1 fr0 conversion time sampling time min. max. min. max. 0 0 0 0 0 288/f xx 176/f xx 11/f xx 12/f xx 7/f xx 8/f xx 0 0 0 0 1 240/f xx 176/f xx 11/f xx 12/f xx 7/f xx 8/f xx 0 0 0 1 0 192/f xx 132/f xx 10/f xx 11/f xx 6/f xx 7/f xx 0 0 1 0 0 144/f xx 88/f xx 9/f xx 10/f xx 5/f xx 6/f xx 0 0 1 0 1 120/f xx 88/f xx 9/f xx 10/f xx 5/f xx 6/f xx 0 0 1 1 0 96/f xx 48/f xx 11/f xx 12/f xx 7/f xx 8/f xx 0 1 0 0 0 96/f xx 48/f xx 11/f xx 12/f xx 7/f xx 8/f xx 0 1 0 0 1 72/f xx 36/f xx 10/f xx 11/f xx 6/f xx 7/f xx 0 1 0 1 0 48/f xx 24/f xx 9/f xx 10/f xx 5/f xx 6/f xx 0 1 0 1 1 24/f xx 12/f xx 8/f xx 9/f xx 4/f xx 5/f xx 0 1 1 0 0 224/f xx 176/f xx 11/f xx 12/f xx 7/f xx 8/f xx 0 1 1 0 1 168/f xx 132/f xx 10/f xx 11/f xx 6/f xx 7/f xx 0 1 1 1 0 112/f xx 88/f xx 9/f xx 10/f xx 5/f xx 6/f xx 0 1 1 1 1 56/f xx 44/f xx 8/f xx 9/f xx 4/f xx 5/f xx 1 0 0 0 0 72/f xx 24/f xx 11/f xx 12/f xx 7/f xx 8/f xx 1 0 0 0 1 54/f xx 18/f xx 10/f xx 11/f xx 6/f xx 7/f xx 1 0 0 1 0 36/f xx 12/f xx 9/f xx 10/f xx 5/f xx 6/f xx 1 0 0 1 1 18/f xx 6/f xx 8/f xx 9/f xx 4/f xx 5/f xx other than above setting prohibited ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 436 (11) internal equivalent circuit the following shows the equivalent circuit of the analog input block. figure 14-11. internal equi valent circuit of anin pin anin c out c in r in av ref0 r in c out c in 4.5 v 3 k ? ? .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 437 14.7 how to read a/d converter characteristics table here, special terms unique to the a/d converter are explained. (1) resolution this is the minimum analog input voltag e that can be identified. that is , the percentage of the analog input voltage per bit of digital output is called 1 lsb (least si gnificant bit). the percent age of 1 lsb with respect to the full scale is expressed by %fsr (full scale range). %fsr indicates the ratio of analog input voltage that can be converted as a percentage, and is always r epresented by the following formula regardless of the resolution. 1 %fsr = (max. value of analog in put voltage that can be converted ? .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 438 (3) quantization error when analog values are converted to digital values, a .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 439 (5) full-scale error this shows the difference between the actual meas urement value of the analog input voltage and the theoretical value (full scale ? .com .com .com .com 4 .com u datasheet
chapter 14 a/d converter preliminary user?s manual u16894ej1v0ud 440 (7) integral linearity error this shows the degree to which the conversion characterist ics deviate from the ideal linear relationship. it expresses the maximum value of the difference between the actual measur ement value and the ideal straight line when the zero-scale error and full-scale error are 0. figure 14-17. integral linearity error 0 av ref0 digital output analog input integral linearity error ideal line 1 ?? 1 0 ?? 0 (8) conversion time this expresses the time from when the analog input vo ltage was applied to the time when the digital output was obtained. the sampling time is included in the conv ersion time in the characteristics table. (9) sampling time this is the time the analog switch is turned on for the analog voltage to be sampled by the sample & hold circuit. figure 14-18. sampling time sampling time conversion time .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 441 chapter 15 d/a converter 15.1 functions in the v850es/kg1+, two channels of d/a c onverter (dac0, dac1) are provided. the d/a converter has the following functions. { 8-bit resolution { r-2r ladder string method { conversion time: 20 { analog output voltage: av ref1 { operation modes: normal mo de, real-time output mode remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 15 d/a converter preliminary user?s manual u16894ej1v0ud 442 15.2 configuration the d/a converter configurat ion is shown below. figure 15-1. block diag ram of d/a converter dacs0 selector selector dacs1 ano0 ano1 dam.dace0 bit dam.dace1 bit dacs0 register write dam.damd0 bit inttmh0 signal dacs1 register write dam.damd1 bit inttmh1 signal av ref1 av ss caution dac0 and dac1 share the av ref1 and av ss pins. the av ss pin is also shared by the a/d converter. the d/a converter consists of the following hardware. table 15-1. configuration of d/a converter item configuration control registers d/a converter mode register (dam) d/a conversion value setting regi sters 0 and 1 (dacs0, dacs1) .com .com .com .com 4 .com u datasheet
chapter 15 d/a converter preliminary user?s manual u16894ej1v0ud 443 15.3 registers the registers that control the d/ a converter are as follows. ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 15 d/a converter preliminary user?s manual u16894ej1v0ud 444 15.4 operation 15.4.1 operation in normal mode d/a conversion is performed using a write operat ion to the dacsn register as the trigger. the setting method is described below. <1> clear the dam.damdn bit to 0 (normal mode). <2> set the analog voltage value to be output to the anon pin to the dacsn register. steps <1> and <2> above constitute the initial settings. <3> set the dam.dacen bit to 1 (d/a conversion enable). d/a converted analog voltage value is output from the anon pin when this setting is performed. <4> to change the analog voltage value, write to the dacsn register. the analog voltage value immediately before set is held until the next write oper ation is performed. remarks 1. for the alternate-function pin settings, refer to table 4-16 settings when port pins are used for alternate functions . 2. n = 0, 1 15.4.2 operation in real-time output mode d/a conversion is performed using the interrupt request si gnal (inttmhn) of 8-bit timer hn as the trigger. the setting method is described below. <1> set the dam.damdn bit to 1 (real-time output mode). <2> set the analog voltage value to be output to the anon pin to the dacsn register. <3> set the dam.dacen bit to 1 (d/a conversion enable). steps <1> to <3> above constitute the initial settings. <4> operate 8-bit timer hn. <5> d/a converted analog voltage value is output from the anon pin when the inttmhn signal is generated. set the next output analog voltage value to the dacsn register, before the next inttmhn signal is generated. <6> after that, the value set in the dacsn register is out put from the anon pin every time the inttmhn signal is generated. remarks 1. the output values of the anon pin up to <5> above are undefined. 2. for the output values of the anon pin in the halt, idle, and stop modes, refer to chapter 23 standby function . .com .com .com .com 4 .com u datasheet
chapter 15 d/a converter preliminary user?s manual u16894ej1v0ud 445 15.4.3 cautions observe the following cautions when using the d/a converter. ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 446 chapter 16 asynchronous serial interface (uart) in the v850es/kg1+, three channels of asynchronous seri al interface (uart) are provided. of these channels, uart0 supports lin-bus. 16.1 selecting uart2 or csi00 mode uart2 and csi00 of the v850 es/kg1+ share pins, and ther efore these interfaces c annot be used at the same time. select uart2 or csi00 in advance by using the pmc4 and pfc4 registers (refer to 4.3.4 port 4 ). caution uart2 or csi00 transmissi on/reception operations are not guara nteed if the mode is changed during transmission or reception. be sure to disable the operation of the unit that is not used. figure 16-1. selecting mode of uart2 or csi00 7 0 pmc4 6 0 5 0 4 0 3 0 2 pmc42 1 pmc41 0 pmc40 7 0 pfc4 6 0 5 0 4 0 3 0 2 pfc42 1 pfc41 0 pfc40 after reset: 00h r/w address: fffff448h after reset: 00h r/w address: fffff478h pfc4n pmc4n operation mode 0 0 port i/o mode 0 1 csi00 mode 1 0 port i/o mode 1 1 uart2 mode remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 447 16.2 features ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? = .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 448 16.3 configuration table 16-1. configuration of uartn item configuration registers receive buffer register n (rxbn) transmit buffer register n (txbn) receive shift register transmit shift register asynchronous serial interface mode register n (asimn) asynchronous serial interface status register n (asisn) asynchronous serial interface tran smit status register n (asifn) lin operation control register 0 (asicl0) other reception control parity check addition of transmissi on control parity remark n = 0 to 2 figure 16-2 shows the configuration of uartn. (1) asynchronous serial interfa ce mode register n (asimn) the asimn register is an 8-bit register for specifying the operation of uartn. (2) asynchronous serial interfa ce status register n (asisn) the asisn register consists of a set of flags that indicate the erro r contents when a reception error occurs. the various reception error flags are set (1) when a reception error occurs and are cleared (0) when the asisn register is read. (3) asynchronous serial interface tran smit status register n (asifn) the asifn register is an 8-bit regist er that indicates the status when a transmit operation is performed. this register consists of a transmit buffer data flag, which indicates the hol d status of the t xbn register data, and the transmit shift register data flag, which indicates whether transmission is in progress. (4) lin operation control register 0 (asicl0) the asicl0 register is an 8-bit regi ster that controls the output forma t for sbf transmission/reception and transmission. the asicl0 register can be used only with uart0. (5) reception control parity check the receive operation is controlled according to the c ontents set in the asimn register. a check for parity errors is also performed during a re ceive operation, and if an error is detected, a value corresponding to the error contents is set in the asisn register. (6) receive shift register this is a shift register that converts the serial data t hat was input to the rxdn pin to parallel data. one byte of data is received, and if a stop bi t is detected, the receive data is transferred to the rxbn register. this register cannot be directly manipulated. .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 449 (7) receive buffer register n (rxbn) the rxbn register is an 8-bit buffer register for holdi ng receive data. when 7 characters are received, 0 is stored in the msb. during a reception enabled state, re ceive data is transferred from the re ceive shift register to the rxbn register, synchronized with the end of t he shift-in processing of one frame. also, the reception completion interrupt request signal (intsrn) is generated by t he transfer of data to the rxbn register. (8) transmit shift register this is a shift register that converts the parallel data that was transferred from the txbn register to serial data. when one byte of data is transferred fr om the txbn register, the shift regi ster data is output from the txdn pin. the transmission completion interrupt request signal (int stn) is generated synchronized with the completion of transmission of one frame. this register cannot be directly manipulated. (9) transmit buffer register n (txbn) the txbn register is an 8-bit buffer for transmit data. a transmit operation is star ted by writing transmit data to the txbn register. (10) addition of transmission control parity a transmit operation is controlled by adding a start bit, par ity bit, or stop bit to the data that is written to the txbn register, according to the contents that were set in the asimn register. figure 16-2. block diagram of uartn parity framing overrun internal bus asynchronous serial interface mode register n (asimn) receive buffer register n (rxbn) receive shift register reception control parity check transmit buffer register n (txbn) transmit shift register addition of transmission control parity baud rate generator n intsren intsrn intstn rxdn txdn remark for the configuration of the baud rate generator, refer to figure 16-17 . .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 450 16.4 registers (1) asynchronous serial interfa ce mode register n (asimn) the asimn register is an 8-bit register t hat controls the uartn transfer operation. this register can be read or written in 8-bit or 1-bit units. after reset, asimn is set to 01h. cautions 1. when using uartn, be sure to set th e external pins related to uartn functions to the control made before setting the cksrn and brgcn registers, and then set the uarten bit to 1. then set the other bits. 2. set the uarten and rxen bits to 1 while a high level is input to the rxdn pin. if these bits are set to 1 while a low level is input to the rxdn pin, reception will be started. (1/2) <7> uarten asimn (n = 0 to 2) <6> txen <5> rxen 4 psn1 3 psn0 2 cln 1 sln 0 isrmn after reset: 01h r/w address: asim0 fffffa00h, asim1 fffffa10h, asim2 fffffa20h uarten control of operating clock 0 stop clock supply to uartn. 1 supply clock to uartn. ? ? = ? ? ? .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 451 (2/2) rxen reception enable/disable 0 disable reception note 1 enable reception ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 452 (2) asynchronous serial interfa ce status register n (asisn) the asisn register, which consists of 3 error flag bits (pen, fen, and oven), indicates the error status when uartn reception is complete. the asisn register is cleared to 00h by a read operation. when a recept ion error occurs, the rxbn register should be read and the error flag should be cl eared after the asisn register is read. this register is read-only in 8-bit units. after reset, asisn is cleared to 00h. cautions 1. when the asimn.uarten bit or asimn. rxen bit is cleared to 0, or when the asisn register is read, the pen, fen, and oven bits are cleared (0). 2. operation using a bit manipula tion instruction is prohibited. 3. when the main clock is stopped and th e cpu is operating on the subclock, do not access the asisn register using an access method that causes a wait. for details, refer to 3.4.8 (2). 7 0 asisn (n = 0 to 2) 6 0 5 0 4 0 3 0 2 pen 1 fen 0 oven after reset: 00h r address: asis0 fffffa03h, asis1 fffffa13h, asis2 fffffa23h pen status flag indicating a parity error 0 when the uarten or rxen bit is cleared to 0, or after the asisn register has been read 1 when reception was completed, the receive data parity did not match the parity bit ? the operation of the pen bit differs according to the settings of the asimn.psn1 and asimn.psn0 bits. fen status flag indicating framing error 0 when the uarten or rxen bit is cleared to 0, or after the asisn register has been read 1 when reception was completed, no stop bit was detected ? for receive data stop bits, only the first bit is checked regardless of the stop bit length. oven status flag indicating an overrun error 0 when the uarten or rxen bit is cleared to 0, or after the asisn register has been read. 1 uartn completed the next receive operation bef ore reading receive data of the rxbn register. ? when an overrun error occurs, the next receive data value is not written to the rxbn register and the data is discarded. .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 453 (3) asynchronous serial interface tran smit status register n (asifn) the asifn register, which consists of 2 status flag bits, indicates the status during transmission. by writing the next data to the txbn register after data is transferred from the txbn register to the transmit shift register, transmit operations can be performed conti nuously without suspension even during an interrupt interval. when transmission is performed continuously, data should be written afte r referencing the txbfn bit to prevent writing to the txbn register by mistake. this register is read-only in 8-bit or 1-bit units. after reset, asifn is cleared to 00h. 7 0 asifn (n = 0 to 2) 6 0 5 0 4 0 3 0 2 0 <1> txbfn <0> txsfn after reset: 00h r address: asif0 fffffa05h, asif1 fffffa15h, asif2 fffffa25h txbfn transmission buffer data flag 0 data to be transferred next to txbn register does not exist (when the asimn.uarten or asimn.txen bit is cleared to 0, or when data has been transf erred to the transmis sion shift register) 1 data to be transferred next exists in txbn register (d ata exists in txbn register when the txbn register has been written to) ? ? .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 454 (4) receive buffer register n (rxbn) the rxbn register is an 8-bit buffer register for stor ing parallel data that had been converted by the receive shift register. when reception is enabled (asimn.rxen bit = 1), receive da ta is transferred from the receive shift register to the rxbn register, synchronized with the completion of th e shift-in processing of one frame. also, a reception completion interrupt request signal (intsrn) is gener ated by the transfer to the rxbn register. for information about the timing for generat ing this interrupt request, refer to 16.6.4 receive operation . if reception is disabled (asimn.rxen bit = 0), the contents of the rxbn register are retained, and no processing is performed for transferring data to the r xbn register even when the shift-in processing of one frame is completed. also, the intsrn signal is not generated. when 7 bits is specified for the data length, bits 6 to 0 of the rxbn register are transferred for the receive data and the msb (bit 7) is always 0. however, if an overrun error (asisn.oven bit = 1) occurs, the receive data at that time is not trans ferred to the rxbn register. the rxbn register becomes ffh when a reset is input or asimn.uarten bit = 0. this register is read-only in 8-bit units. 7 rxbn7 rxbn (n = 0 to 2) 6 rxbn6 5 rxbn5 4 rxbn4 3 rxbn3 2 rxbn2 1 rxbn1 0 rxbn0 after reset: ffh r address: rxb0 fffffa02h, rxb1 fffffa12h, rxb2 fffffa22h (5) transmit buffer register n (txbn) the txbn register is an 8-bit buffe r register for setting transmit data. when transmission is enabled (asimn.txen bit = 1), the tr ansmit operation is started by writing data to txbn register. when transmission is disabled (txen bit = 0), even if dat a is written to txbn register, the value is ignored. the txbn register data is transferr ed to the transmit shift register, and a transmission completion interrupt request signal (intstn) is generated, synchronized wit h the completion of the transmission of one frame from the transmit shift register. for information about t he timing for generating this interrupt request, refer to 16.6.2 transmit operation . when asifn.txbfn bit = 1, writing must not be performed to txbn register. this register can be read or written in 8-bit units. after reset, txbn is set to ffh. 7 txbn7 txbn (n = 0 to 2) 6 txbn6 5 txbn5 4 txbn4 3 txbn3 2 txbn2 1 txbn1 0 txbn0 after reset: ffh r/w address: txb0 fffffa04h, txb1 fffffa14h, txb2 fffffa24h .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 455 (6) lin operation control register 0 (asicl0) the asicl0 register is an 8-bit regi ster that controls the output forma t for sbf transmission/reception and transmission. this register can be read or written in 8-bit or 1-bit units. after reset, asicl0 is set to 16h. caution the asicl0 register is valid only for uart0. uart1 and uart2 do not support this register. sbrf0 note if asim0.uarte0 bit = 0 and asim0.rxe0 bit = 0 or if sbf reception has been completed correctly sbf reception in progress sbrf0 note 0 1 sbf reception status flag asicl0 sbrt0 sbtt0 sbl02 sbl01 sbl00 udir0 txdlv0 after reset: 16h r/w address: fffffa08h sbf is output with 13-bit length (default) sbf is output with 14-bit length sbf is output with 15-bit length sbf is output with 16-bit length sbf is output with 17-bit length sbf is output with 18-bit length sbf is output with 19-bit length sbf is output with 20-bit length sbl02 1 1 1 0 0 0 0 1 sbl01 0 1 1 0 0 1 1 0 sbl00 1 0 1 0 1 0 1 0 sbf transmission output width control reception trigger sbrt0 0 1 sbf reception trigger ? transmission trigger sbtt0 0 1 sbf transmission trigger ? msb lsb udir0 0 1 first-bit specification normal output of txd0 pin inverted output of txd0 pin txdlv0 0 1 enables/disables inverting txd0 pin output < > < > < > note the sbrf0 bit is read-only. .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 456 (7) selector operation control register 0 (selcnt0) the selcnt0 register is an 8-bit register that selects the tm01 capture trigger. if selcnt0.isel00 is set to 1 (rxd0 pin is selected) when lin is used, the transfer rate for calculating the baud rate error can be checked using tm01. this register can be read or written in 8-bit or 1-bit units. after reset, selcnt0 is cleared to 00h. 0 selcnt0 0 0 0 0 0 0 isel00 after reset: 00h r/w address: fffff308h select ti010 (p35) pin select rxd0 (p31) pin isel00 0 1 selection of tm01 capture trigger (tm010) .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 457 16.5 interrupt request signals the following three types of interrupt re quest signals are generated from uartn. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 458 16.6 operation 16.6.1 data format full-duplex serial data transmission and reception can be performed. the transmit/receive data format consists of one data fr ame containing a start bit, character bits, a parity bit, and stop bits as shown in figure 16-3. the character bit length within one data frame, the type of parity, and the stop bit length are specified according to the asimn register. also, data is transferred lsb first. figure 16-3. format of uartn transmit/receive data 1 data frame start bit d0 d1 d2 d3 d4 d5 d6 d7 parity bit stop bits character bits ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 459 16.6.2 transmit operation when the asimn.uarten bit is set to 1, a hi gh level is output from the txdn pin. then, when the asimn.txen bit is set to 1, transmission is enabled, and the transmit operat ion is started by writing transmit data to the txbn register. (1) transmission enabled state this state is set by the txen bit. ? = ? = .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 460 figure 16-4. uartn transmission completion interrupt timing start stop d0 d1 d2 d6 d7 parity parity txdn (output) intstn (output) start d0 d1 d2 d6 d7 txdn (output) intstn (output) (a) stop bit length: 1 (b) stop bit length: 2 stop .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 461 16.6.3 continuous transmission operation uartn can write the next transmit data to the txbn register at the timing t hat the transmit shift register starts the shift operation. this enables an efficient transmission rate to be realized by continuously transmitting data even during the transmission completion interrupt service after th e transmission of one data frame. in addition, reading the asifn.txsfn bit after the occurrence of a transmission co mpletion interrupt request si gnal (intstn) enables the txbn register to be efficiently written twice (2 byte s) without waiting for the tr ansmission of 1 data frame. when continuous transmission is perform ed, data should be written after referenc ing the asifn register to confirm the transmission status and whether or not da ta can be written to the txbn register. caution the values of the asifn.txbfn and asifn.txsfn bits change 10 .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 462 figure 16-5. continuous transmission processing flow set registers interrupt occurrence wait for interrupt required number of transfers performed? write transmit data to txbn register write second byte transmit data to txbn register write transmit data to txbn register when reading asifn register, txbfn = 0? when reading asifn register, txsfn = 1? when reading asifn register, txsfn = 0? no no no no yes yes yes yes end of transmission processing .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 463 (1) starting procedure the procedure to start continuous transmission is shown below. figure 16-6. continuous tr ansmission starting procedure txdn (output) data (1) data (2) <5> <1> <2> <4> intstn (output) txbn register ffh ffh data (1) data (2) data (3) data (1) data (2) data (3) <3> asifn register (txbfn, txsfn bits) 00 11 note 11 01 01 11 01 11 txsn register start bit stop bit stop bit start bit 10 note refer to 16.8 cautions (2) . asifn register transmission starting procedure internal operation txbfn txsfn ? <1> start transmission unit 0 0 ? 1 0 <2> generate start bit ? = start data (1) transmission 1 0 0 0 1 note 1 1 1 ? <> 1 1 <3> intstn interrupt occurs ? = 0 0 1 1 ? write data (3) <4> generate start bit start data (2) transmission <> 1 1 <5> intstn interrupt occurs ? = 0 0 1 1 ? 1 1 note refer to 16.8 cautions (2) . .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 464 (2) ending procedure the procedure for ending continuous transmission is shown below. figure 16-7. continuous transmission end procedure txdn (output) data (m ? ? ? transmission end procedure internal operation txbfn txsfn <6> transmission of data (m ? ? read asifn register (confirm that txbfn bit = 0) 0 0 1 1 ? write data (m) <8> generate start bit start data (m ? ? read asifn register (confirm that txsfn bit = 1) there is no write data <10> generate start bit start data (m) transmission <> 0 0 1 1 <11> generate intstn interrupt ? read asifn register (confirm that txsfn bit = 0) ? clear (0) the uarten bit or txen bit initialize internal circuits 0 0 0 0 .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 465 16.6.4 receive operation the awaiting reception state is set by setting the asimn.uar ten bit to 1 and then setting the asimn.rxen bit to 1. to start the receive operatio n, start sampling at the fallin g edge when the falling of the rxdn pin is detected. if the rxdn pin is low level at a start bit sampling point, the st art bit is recognized. when the receive operation begins, serial data is stored sequentially in the receive shift regi ster according to the baud rate that was set. a reception completion interrupt request signal (intsrn) is generated each time the reception of one frame of data is completed. normally, the receive data is transferred from the rxbn register to memory by th is interrupt servicing. (1) reception enabled state the receive operation is set to the reception enabled state by setting the rxen bit to 1. ? = ? = = = = = = .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 466 figure 16-8. uartn reception completion inte rrupt timing start d0 d1 d2 d6 d7 rxdn (input) intsrn (output) rxbn register parity stop cautions 1. be sure to read th e rxbn register even when a recept ion error occurs. if the rxbn register is not read, an overrun error wil l occur at the next data reception and the reception error status will continue infinitely. 2. reception is always performed assuming a stop bit length of 1. a second stop bit is ignored. 16.6.5 reception error the three types of errors that can occur during a receive operation are a parity error, framing error, and overrun error. as a result of data reception, the various flags of the asisn register ar e set (1), and a reception error interrupt request signal (intsren) or a reception completion interrupt request signal (intsrn) is generated at the same time. the asimn.isrmn bit specifies whether the intsren signal or the intsrn signal is generated. the type of error that occurred during reception can be de tected by reading the conten ts of the asisn register during the intsren or intsrn interrupt servicing. the contents of the asisn r egister are cleared (0) by reading the asisn register. table 16-3. reception error causes error flag reception error cause pen parity error the parity specificat ion during transmission did not match the parity of the reception data fen framing error no stop bit was detected oven overrun error the reception of the next data was completed before data was read from the rxbn register .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 467 (1) separation of reception e rror interrupt request signal a reception error interrupt request signal can be separ ated from the intsrn signal and generated as the intsren signal by clearing the isrmn bit to 0. figure 16-9. when reception error in terrupt request signal is separated from intsrn signal (isrmn bit = 0) (a) no error occurs during reception (b) an e rror occurs during reception intsrn signal (reception completion interrupt) intsren signal (reception error interrupt) intsrn signal (reception completion interrupt) intsren signal (reception error interrupt) intsrn does not occur figure 16-10. when reception error in terrupt request signal is included in intsrn signal (isrmn bit = 1) (a) no error occurs during reception (b) an erro r occurs during reception intsrn signal (reception completion interrupt) intsren signal (reception error interrupt) intsrn signal (reception completion interrupt) intsren signal (reception error interrupt) intsren does not occur .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 468 16.6.6 parity types and corresponding operation a parity bit is used to detect a bit error in communication da ta. normally, the same type of parity bit is used on the transmission and reception sides. (1) even parity (i) during transmission the parity bit is controlled so t hat the number of bits with the valu e ?1? within the transmit data including the parity bit is even. the parity bit value is as follows. ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 469 16.6.7 receive data noise filter the rxdn signal is sampled at the risi ng edge of the prescaler output base clock (f uclk ). if the same sampling value is obtained twice, the ma tch detector output changes, and this output is sampled as input data. therefore, data not exceeding one clock width is judged to be noise and is not delivered to the internal circuit (refer to figure 16-12 ). refer to 16.7.1 (1) base clock regarding the base clock. also, since the circuit is configured as shown in figure 16-11, internal processing during a receive operation is delayed by up to 2 clocks accordin g to the external signal status. figure 16-11. noise filter circuit rxdn q base clock in ld_en q in internal signal a internal signal b match detector f uclk figure 16-12. timing of rx dn signal judg ed as noise internal signal a base clock rxdn (input) internal signal b match mismatch (judged as noise) mismatch (judged as noise) match .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 470 16.6.8 sbf transmission/ reception (uart0 only) the uart0 of the v850es/kg1+ has an sbf (sync break fiel d) transmission/reception control function to enable use of the lin function. remark lin stands for local interconnect network and is a low-speed (1 to 20 kbps) serial communication protocol intended to aid the cost reduction of an automotive network. lin communication is single-master communication, and up to 15 slaves can be connected to one master. the lin slaves are used to cont rol the switches, actuators, and s ensors, and these are connected to the lin master via the lin network. normally, the lin master is connected to a network such as can (controller area network). in addition, the lin bus uses a single-wire method a nd is connected to the nodes via a transceiver that complies with iso9141. in the lin protocol, the master transmits a frame with baud rate information and the slave receives it and corrects the baud rate error. therefore, communication is possibl e when the baud rate error in the slave is .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 471 figure 16-14. lin reception manipulation outline reception interrupt (intuanr) edge detection capture timer disable disable enable txd0 (output) enable note 2 13 bits sbf reception note 3 note 4 note 1 sf reception id reception data transmission data transmission note 5 data transmission sleep bus wakeup signal frame sync break field sync field ident field data field data field checksum field notes 1. the wakeup signal is sent by the pin edge det ector, uart0 is enabled, and the sbf reception mode is set. 2. the receive operation is perform ed until detection of the stop bit. upon detection of sbf reception of 11 or more bits, normal sbf reception end is judged, and an interrupt signal is output. upon detection of sbf reception of less than 11 bits , an sbf reception error is judged, no interrupt signal is output, and the mode return s to the sbf reception mode. 3. if sbf reception ends normally, an interrupt request signal is output. the timer is enabled by an sbf reception completion interrupt. moreover, e rror detection for the asi s0.pe0, asis0.fe0, and asis0.ove0 bits is suppressed and uart communi cation error detection processing and data transfer of the receive shift register and rxb0 register are not perform ed. the receive shift register holds the initial value, ffh. 4. the rxd0 pin is connected to ti (capture input: refer to 16.4 (7) selector operation control register 0 (selcnt0) ) of the timer, the transfer rate is calculated, and the baud rate error is calculated. the value of brg (refer to 16.7 dedicated baud rate generator n (brgn) ) obtained by correcting the baud rate error after dropping uart0 enable is set again, causing the status to become the reception status. 5. checksum field distinctions are made by software. uart0 is initialized following csf reception, and the processing for setting the sbf recepti on mode again is performed by software. .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 472 (2) sbf transmission when the asim0.uarte0 bit = asim0.txe0 bit = 1, t he transmission enabled stat us is entered, and sbf transmission is started by setting the sbf trans mission trigger (asicl0.sbrt0 bit) to 1. thereafter, a low-level width of bits 13 to 20 specified by the asicl0.sb l02 to asicl0.sbl00 bits is output. a transmission completion interrupt request signal (i ntst0) is generated upon sbf transmission start. following the end of sbf transmission, the asicl0.sbtt0 bit is automatically cleared to 0. thereafter, the uart transmission mode is restored. transmission is suspended until the data to be transmitted next is written to the txb0 register, or until the sbf transmission trigger (sbtt0 bit) is set to 1. figure 16-15. sbf transmission intst0 interrupt 12345678910111213 stop bit setting of sbtt0 bit .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 473 (3) sbf reception the reception enabled status is ac hieved by setting the asim0.uarte0 bit to 1 and then setting the asim0.rxe0 bit to 1. the sbf reception wait status is set by setting the sbf reception trigger (asicl0.sbrt0 bit) to 1. in the sbf reception wait status, sim ilarly to the uart reception wait st atus, the rxd0 pin is monitored and start bit detection is performed. following detection of the start bit, reception is started and the internal counter counts up according to the set baud rate. when a stop bit is received, if the sbf width is 11 or more bits, normal processing is judged and a reception completion interrupt request signal (intsr0) is output. the asicl0. sbrf0 bit is automatically cleared and sbf reception ends. error detection for the asis0 .pe0, asis0.fe0, and asis0.ove0 bits is suppressed and uart communication error detection processing is not performed. moreover, data transfer of the reception shift register and rxb0 register is not perfo rmed and ffh, the initial value, is held. if the sbf width is 10 or fewer bits, reception is terminated as error processing without outputting an interrupt, and the sbf reception mode is returned to. the asicl0. sbrf0 bit is not clear ed at this time. figure 16-16. sbf reception (a) normal sbf reception (detection of stop bit in more than 10.5 bits) sbrf0 123456 11.5 7891011 intst0 interrupt (b) sbf reception error (detection of stop bit in 10.5 or fewer bits) sbrf0 123456 10.5 78910 intst0 interrupt .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 474 16.7 dedicated baud rate generator n (brgn) a dedicated baud rate generator, which consists of a s ource clock selector and an 8-bit programmable counter, generates serial clocks during transmission/reception by uartn. the dedicated baud ra te generator output can be selected as the serial clock for each channel. separate 8-bit counters exist fo r transmission and for reception. 16.7.1 baud rate generator n (brgn) configuration figure 16-17. configuration of baud rate generator n (brgn) f xx /2 f xx /4 f xx /8 f xx /16 f xx /32 f xx /64 f xx /128 f xx /256 f xx /512 f xx /1,024 asck0 note 2 f uclk note 1 selector uarten 8-bit counter match detector baud rate brgcn: mdln7 to mdln0 1/2 uarten and txen bits (or rxen bit) cksrn: tpsn3 to tpsn0 f xx notes 1. set f xx so as to satisfy the following conditions. ? v dd = regc = 4.0 to 5.5 v: f uclk 12 mhz ? v dd = 4.0 to 5.5 v, regc = capacity: f uclk 6 mhz ? v dd = regc = 2.7 to 4.0 v: f uclk 6 mhz 2. asck0 pin input can be used only by uart0. remark f xx : main clock frequency (1) base clock when the asimn.uarten bit = 1, the clock selected a ccording to the cksrn.tpsn3 to cksrn.tpsn0 bits is supplied to the transmission/reception uni t. this clock is called the base clock (f uclk ). when the uarten bit = 0, f uclk is fixed to low level. .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 475 16.7.2 serial clock generation a serial clock can be generated according to the settings of the cksrn and brgcn registers. the base clock to the 8-bit counter is select ed by the cksrn.tpsn3 to cksrn.tpsn0 bits. the 8-bit counter divisor value can be set by the brgcn.mdln7 to brgcn.mdln0 bits. (1) clock select register n (cksrn) the cksrn register is an 8-bit regist er for selecting the basic block us ing the tpsn3 to tpsn0 bits. the clock selected by the tpsn3 to t psn0 bits becomes the base clock (f uclk ) of the transmission/reception module. this register can be read or written in 8-bit units. after reset, cksrn is cleared to 00h. caution clear the asimn.uarten bit to 0 before rewriti ng the tpsn3 to tpsn0 bits. 7 0 cksrn (n = 0 to 2) 6 0 5 0 4 0 3 tpsn3 2 tpsn2 1 tpsn1 0 tpsn0 after reset: 00h r/w address: cksr0 fffffa06h, cksr1 fffffa16h, cksr2 fffffa26h tpsn3 tpsn2 tpsn1 tpsn0 base clock (f uclk ) note 1 0 0 0 0 f xx 0 0 0 1 f xx /2 0 0 1 0 f xx /4 0 0 1 1 f xx /8 0 1 0 0 f xx /16 0 1 0 1 f xx /32 0 1 1 0 f xx /64 0 1 1 1 f xx /128 1 0 0 0 f xx /256 1 0 0 1 f xx /512 1 0 1 0 f xx /1,024 1 0 1 1 external clock note 2 (asck0 pin) other than above setting prohibited notes 1. set f uclk so as to satisfy the following conditions. ? = = ? = = ? = = .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 476 (2) baud rate generator c ontrol register n (brgcn) the brgcn register is an 8-bit regist er that controls the baud rate (serial transfer speed) of uartn. this register can be read or written in 8-bit units. after reset, brgcn is set to ffh. caution if the mdln7 to mdln0 bits are to be o verwritten, the asimn.txen and asimn.rxen bits should be cleared to 0 first. 7 mdln7 brgcn (n = 0 to 2) 6 mdln6 5 mdln5 4 mdln4 3 mdln3 2 mdln2 1 mdln1 0 mdln0 after reset: ffh r/w address: brgc0 fffffa07h, brgc1 fffffa17h, brgc2 fffffa27h mdln7 mdln6 mdln5 mdln4 mdln3 mdln2 mdln1 mdln0 set value (k) serial clock 0 0 0 0 0 = .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 477 (3) baud rate the baud rate is the value obtained by the following formula. baud rate [bps] = f uclk = frequency [hz] of base clock selected by cksrn.tpsn3 to cksrn.tpsn0 bits k = value set by brgcn.mdln7 to brgcn. mdln0 bits (k = 8, 9, 10, ..., 255) (4) baud rate error the baud rate error is obtained by the following formula. error (%) = ? = = = = = = = = ? = ? .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 478 16.7.3 baud rate setting example table 16-4. baud rate generator setting data f xx = 20 mhz f xx = 16 mhz f xx = 10 mhz baud rate (bps) f uclk k err f uclk k err f uclk k err 300 f xx /512 41h (65) 0.16 f xx /1024 1ah (26) 0.16 f xx /256 41h (65) 0.16 600 f xx /256 41h (65) 0.16 f xx /1024 0dh (13) 0.16 f xx /128 41h (65) 0.16 1200 f xx /128 41h (65) 0.16 f xx /512 0dh (13) 0.16 f xx /64 41h (65) 0.16 2400 f xx /64 41h (65) 0.16 f xx /256 0dh (13) 0.16 f xx /32 41h (65) 0.16 4800 f xx /32 41h (65) 0.16 f xx /128 0dh (13) 0.16 f xx /16 41h (65) 0.16 9600 f xx /16 41h (65) 0.16 f xx /64 0dh (13) 0.16 f xx /8 41h (65) 0.16 10400 f xx /64 0fh (15) 0.16 f xx /64 0ch (12) 0.16 f xx /32 0fh (15) 0.16 19200 f xx /8 41h (65) 0.16 f xx /32 0dh (13) 0.16 f xx /4 41h (65) 0.16 24000 f xx /32 0dh (13) 0.16 f xx /2 a7h (167) ? ? ? ? ? ? ? ? = = ? = = ? = = = .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 479 16.7.4 allowable baud ra te range during reception the degree to which a discrepancy from the transmission des tination?s baud rate is allowed during reception is shown below. caution the equations described belo w should be used to set the ba ud rate error during reception so that it always is within the allowable error range. figure 16-18. allowable baud rate range during reception fl 1 data frame (11 = + = ? ? = .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 480 therefore, the transfer destination?s maximum re ceivable baud rate (brmax) is as follows. brmax = (flmin/11) ? = ? = + ? = ? = = ? = + + + + + + ? .com .com .com .com 4 .com u datasheet
chapter 16 asynchronous serial interface (uart) preliminary user?s manual u16894ej1v0ud 481 16.7.5 transfer rate duri ng continuous transmission during continuous transmission, the transfer rate from a stop bit to the next start bit is extended two clocks of the base clock longer than normal. however, on the reception si de, the transfer result is not affected since the timing is initialized by the detection of the start bit. figure 16-19. transfer rate during continuous transmission start bit bit 0 bit 1 bit 7 parity bit stop bit fl 1 data frame bit 0 fl fl fl fl fl fl flstp start bit of second byte start bit representing the 1-bit data length by fl, the stop bit length by flstp, and the base clock frequency by f uclk yields the following equation. flstp = fl + 2/f uclk therefore, the transfer rate during continuous transmission is as follows (when the stop bit length = 1). transfer rate = 11 + .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 482 chapter 17 clocked serial interface 0 (csi0) in the v850es/kg1+, two channels of clocked se rial interface 0 (csi0) are provided. 17.1 features ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 483 17.2 configuration csi0n is controlled via the csim0n register. (1) clocked serial interface mode register 0n (csim0n) the csim0n register is an 8-bit register t hat specifies the operation of csi0n. (2) clocked serial interface clock selection register n (csicn) the csicn register is an 8-bit register that co ntrols the csi0n serial transfer operation. (3) serial i/o shift register 0n (sio0n) the sio0n register is a 16-bit shift register th at converts parallel data into serial data. the sio0n register is used for bot h transmission and reception. data is shifted in (reception) and shifted ou t (transmission) from the msb or lsb side. the actual transmission/reception operations ar e started up by accessing the buffer register. (4) serial i/o shift register 0nl (sio0nl) the sio0nl register is an 8-bit shift register that converts parallel data into serial data. the sio0nl register is used for both transmission and reception. data is shifted in (reception) and shifted ou t (transmission) from the msb or lsb side. the actual transmission/reception operations ar e started up by access of the buffer register . (5) clocked serial interface recei ve buffer register n (sirbn) the sirbn register is a 16-bit buffer r egister that stores receive data. (6) clocked serial interface recei ve buffer register nl (sirbnl) the sirbnl register is an 8-bit buffer r egister that stores receive data. (7) clocked serial interface read-only r eceive buffer register n (sirben) the sirben register is a 16-bit buffer register that stores receive data. the sirben register is the same as the sirbn register. it is used to read the contents of the sirbn register. (8) clocked serial interface read-only r eceive buffer register nl (sirbenl) the sirbenl register is an 8-bit buffer register that stores receive data. the sirbenl register is the same as the sirbnl register. it is used to read the contents of the sirbnl register. (9) clocked serial interface transm it buffer register n (sotbn) the sotbn register is a 16-bit buffer r egister that stores transmit data. (10) clocked serial interface transm it buffer register nl (sotblnl) the sotbnl register is an 8-bit buffer register that stores transmit data. (11) clocked serial interface initial tr ansmit buffer register n (sotbfn) the sotbfn register is a 16-bit buffer register that st ores the initial transmit data in the continuous transfer mode. .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 484 (12) clocked serial interface initial tran smit buffer register nl (sotbfnl) the sotbfnl register is an 8-bit buffe r register that stores initial tran smit data in the continuous transfer mode. (13) selector the selector selects the serial clock to be used. (14) serial clock controller controls the serial clock supply to the shift register. also controls the clock out put to the sck0n pin when the internal clock is used. (15) serial clock counter counts the serial clock output or i nput during transmission/reception, and checks whether 8-bit or 16-bit data transmission/reception has been performed. (16) interrupt controller controls the interrupt request timing. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 485 figure 17-1. block diagram of clocked serial interface selector transmission control so selection so latch transmit buffer register (sotbn/sotbnl) receive buffer register (sirbn/sirbnl) shift register (sio0n/sio0nl) initial transmit buffer register (sotbfn/sotbfnl) interrupt controller clock start/stop control & clock phase control serial clock controller sck0n intcsi0n so0n si0n control signal transmission data control f xx /2 6 f xx /2 5 f xx /2 4 f xx /2 3 f xx /2 2 f xx /2 to5n sck0n remarks 1. n = 0, 1 2. f xx : main clock frequency .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 486 17.3 registers (1) clocked serial interface mode register 0n (csim0n) the csim0n register controls the csi0n operation. this register can be read or written in 8-bit or 1-bit units (however, csotn bit is read-only). after reset, csim0n is cleared to 00h. caution overwriting the trmdn, ccln, dirn, csi tn, and auton bits can be done only when the csotn bit = 0. if these bits are overwritten when the csotn bit = 1, the operation cannot be guaranteed. .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 487 <7> csi0en csim0n (n = 0, 1) <6> trmdn 5 ccln <4> dirn 3 csitn 2 auton 1 0 <0> csotn after reset: 00h r/w address: csim00 fffffd00h, csim01 fffffd10h csi0en csi0n operation enable/disable 0 disable csi0n operation. 1 enable csi0n operation. the internal csi0n circuit can be reset note asynchronously by clearing the csi0en bit to 0. for the sck0n and so0n pin output status when the csi0en bit = 0, refer to 17.5 output pins . trmdn specification of transmission/reception mode 0 receive-only mode 1 transmission/reception mode when the trmdn bit = 0, reception is performed and the so0n pi n outputs a low level. data reception is started by reading the sirbn register. when the trmdn bit = 1, transmissi on/reception is started by writing data to the sotbn register. ccln specification of data length 0 8 bits 1 16 bits dirn specification of transfer direction mode (msb/lsb) 0 first bit of transfer data is msb 1 first bit of transfer data is lsb csitn control of delay of interrupt request signal 0 no delay 1 delay mode (interrupt request signal is delay ed 1/2 cycle compared to the serial clock) the delay mode (csitn bit = 1) is valid only in the master mode (csicn.cks0n2 to csicn.csk0n0 bits are not 111b). in the slave mode (cks0n2 to cks0n0 bits are 111b), do not set the delay mode. auton specification of single trans fer mode or continuous transfer mode 0 single transfer mode 1 continuous mode csotn communication status flag 0 communication stopped 1 communication in progress the csotn bit is cleared (0) by writing 0 to the csi0en bit. note the csotn bit and the sirbn, sirbnl, sirbe, sirbenl, sion , and sionl registers are reset. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 488 (2) clocked serial interface clock selection register n (csicn) the csicn register is an 8-bit register t hat controls the csi0n transfer operation. this register can be read or written in 8-bit or 1-bit units. after reset, csicn is cleared to 00h. caution the csicn register can be overwri tten only when the csim0n.csi0en bit = 0. 7 0 csicn (n = 0, 1) 6 0 5 0 4 ckpn 3 dapn 2 cks0n2 1 cks0n1 0 cks0n0 after reset: 00h r/w address: csic0 fffffd01h, csic1 fffffd11h ckpn dapn specification of timing of transmitting/receiving data to/from sck0n 0 0 (type 1) do7 do6 do5 do4 do3 do2 do1 do0 di7 so0n (output) sck0n (i/o) si0n (input) di6 di5 di4 di3 di2 di1 di0 0 1 (type 2) do7 do6 do5 do4 do3 do2 do1 do0 di7 di6 di5 di4 di3 di2 di1 di0 so0n (output) sck0n (i/o) si0n (input) 1 0 (type 3) do7 do6 do5 do4 do3 do2 do1 do0 di7 di6 di5 di4 di3 di2 di1 di0 so0n (output) sck0n (i/o) si0n (input) 1 1 (type 4) do7 do6 do5 do4 do3 do2 do1 do0 di7 di6 di5 di4 di3 di2 di1 di0 so0n (output) sck0n (i/o) si0n (input) cks0n2 cks0n1 cks0n0 serial clock note mode 0 0 0 f xx /2 master mode 0 0 1 f xx /2 2 master mode 0 1 0 f xx /2 3 master mode 0 1 1 f xx /2 4 master mode 1 0 0 f xx /2 5 master mode 1 0 1 f xx /2 6 master mode 1 1 0 clock generated by to5n master mode 1 1 1 external clock (sck0n pin) slave mode note set the serial clock so as to satisfy the following conditions. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 489 (3) clocked serial interface receive buffe r registers n, nl (sirbn, sirbnl) the sirbn register is a 16-bit buffer r egister that stores receive data. when the receive-only mode is set (csim0n.trmdn bit = 0), the reception operati on is started by reading data from the sirbn register. this register is read-only in 16-bit units. when the lowe r 8 bits are used as the sirbnl register, this register is read-only in 8-bit units. in addition to reset input, this register is also clear ed to 0000h by clearing (0) the csim0n.csi0en bit. cautions 1. read the sirbn regist er only when a 16-bit data length has been set (csim0n.ccln bit = 1). read the sirbnl register only when an 8-bi t data length has been set (ccln bit = 0). 2. when the single transfer mode has been set (csim0n.aut on bit = 0), perform a read operation only in the idle state (csim0n.csotn bit = 0). if the sirbn or sirbnl register is read during data transfer, th e data cannot be guaranteed. (a) sirbn register 14 sirbn 14 13 sirbn 13 12 sirbn 12 2 sirbn 2 3 sirbn 3 4 sirbn 4 5 sirbn 5 6 sirbn 6 7 sirbn 7 8 sirbn 8 9 sirbn 9 10 sirbn 10 11 sirbn 11 15 sirbn 15 1 sirbn 1 0 sirbn 0 sirbn (n = 0, 1) after reset: 0000h r address: sirb0 fffffd02h, sirb1 fffffd12h (b) sirbnl register 7 sirbn7 sirbnl (n = 0, 1) 6 sirbn6 5 sirbn5 4 sirbn4 3 sirbn3 2 sirbn2 1 sirbn1 0 sirbn0 after reset: 00h r address: sirb0l fffffd02h, sirb1l fffffd12h .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 490 (4) clocked serial interface read-only receive buffer registers n, nl (sirben, sirbenl) the sirben register is a 16-bit buffer register that stores receive data. the sirben register is the same as the sirbn register. even if the sirben register is read, the next operation will not start. the sirben register is used to read the conten ts of the sirbn register when the serial reception is not continued. this register is read-only in 16-bit units. however, when the lower 8 bits are used as the sirbenl register, the register is read-only in 8-bit units. in addition to reset input, this register is also clear ed to 0000h by clearing (0) the csim0n.csi0en bit. cautions 1. the receive operation is not started even if data is read from the sirben and sirbenl registers. 2. the sirben register can be read only if a 16-bit data length has been set (csim0n.ccln bit = 1). the sirbenl register can be read only if an 8-bit data length has been set (ccln bit = 0). (a) sirben register 14 sirben 14 13 sirben 13 12 sirben 12 2 sirben 2 3 sirben 3 4 sirben 4 5 sirben 5 6 sirben 6 7 sirben 7 8 sirben 8 9 sirben 9 10 sirben 10 11 sirben 11 15 sirben 15 1 sirben 1 0 sirben 0 sirben (n = 0, 1) after reset: 0000h r address: sirbe0 fffffd06h, sirbe1 fffffd16h (b) sirbenl register 7 sirben7 sirbenl (n = 0, 1) 6 sirben6 5 sirben5 4 sirben4 3 sirben3 2 sirben2 1 sirben1 0 sirben0 after reset: 00h r address: sirbe0l fffffd06h, sirbe1l fffffd16h .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 491 (5) clocked serial interface transmit bu ffer registers n, nl (sotbn, sotbnl) the sotbn register is a 16-bit buffer r egister that stores transmit data. when the transmission/reception mode is set (csim0n.trmd n bit = 1), the transmission operation is started by writing data to the sotbn register. this register can be read or written in 16-bit units. however, when the lower 8 bi ts are used as the sotbnl register, the register can be read or written in 8-bit units. after reset, this register is cleared to 0000h. cautions 1. access the sotbn register only when a 16-bit data length has been set (csim0n.ccln bit = 1). access the sotbnl register only when an 8-bi t data length has been set (ccln bit = 0). 2. when the single transfer mode is set (csim0n.auton bit = 0) , perform access only in the idle state (csim0n.csotn bit = 0). if the sotbn and sotbnl registers are accessed during data transfer, the da ta cannot be guaranteed. (a) sotbn register 14 sotbn 14 13 sotbn 13 12 sotbn 12 2 sotbn 2 3 sotbn 3 4 sotbn 4 5 sotbn 5 6 sotbn 6 7 sotbn 7 8 sotbn 8 9 sotbn 9 10 sotbn 10 11 sotbn 11 15 sotbn 15 1 sotbn 1 0 sotbn 0 sotbn (n = 0, 1) after reset: 0000h r/w address: sotb0 fffffd04h, sotb1 fffffd14h (b) sotbnl register 7 sotbn7 sotbnl (n = 0, 1) 6 sotbn6 5 sotbn5 4 sotbn4 3 sotbn3 2 sotbn2 1 sotbn1 0 sotbn0 after reset: 00h r/w address: sotb0l fffffd04h, sotb1l fffffd14h .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 492 (6) clocked serial interface initial transmit buffer registers n, nl (sotbfn, sotbfnl) the sotbfn register is a 16-bit buffer register that st ores initial transmission data in the continuous transfer mode. the transmission operation is not started even if data is writt en to the sotbfn register. this register can be read or written in 16-bit units. however, when the lower 8 bits are used as the sotbfnl register, the register can be read or written in 8-bit units. after reset, this register is cleared to 0000h. caution access the sotbfn register and sotbfnl regi ster only when a 16-bit data length has been set (csim0n.ccln bit = 1), and only when an 8- bit data length has been set (ccln bit = 0), respectively, and only in the idle state (csim0n.csotn bit = 0). if the sotbfn and sotbfnl registers are accessed during data transfer, the data cannot be guaranteed. (a) sotbfn register 14 sotbfn 14 13 sotbfn 13 12 sotbfn 12 2 sotbfn 2 3 sotbfn 3 4 sotbfn 4 5 sotbfn 5 6 sotbfn 6 7 sotbfn 7 8 sotbfn 8 9 sotbfn 9 10 sotbfn 10 11 sotbfn 11 15 sotbfn 15 1 sotbfn 1 0 sotbfn 0 sotbfn (n = 0, 1) after reset: 0000h r/w address: sotbf0 fffffd08h, sotbf1 fffffd18h (b) sotbfnl register 7 sotbfn7 sotbfnl (n = 0, 1) 6 sotbfn6 5 sotbfn5 4 sotbfn4 3 sotbfn3 2 sotbfn2 1 sotbfn1 0 sotbfn0 after reset: 00h r/w address: sotbf0l fffffd08h, sotbf1l fffffd18h .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 493 (7) serial i/o shift registers n, nl (sio0n, sio0nl) the sio0n register is a 16-bit shift register th at converts parallel data into serial data. the transfer operation is not started even if the s io0n register is read. this register is read-only in 16-bit units. however, when the lower 8 bi ts are used as the sio0nl register, the register is read-only in 8-bit units. in addition to reset input, this register is also clear ed to 0000h by clearing (0) the csim0n.csi0en bit. caution read the sio0n register and sio0nl re gister only when a 16-bi t data length has been set (csim0n.ccln bit = 1), and only when an 8-bit data length has been set (ccln bit = 0), respectively, and only in the idle state (csim0n.csotn bit = 0). if the sio0n and sio0nl registers are read during data tran sfer, the data cannot be guaranteed. (a) sio0n register 14 sion14 13 sion13 12 sion12 2 sion2 3 sion3 4 sion4 5 sion5 6 sion6 7 sion7 8 sion8 9 sion9 10 sion10 11 sion11 15 sion15 1 sion1 0 sion0 sio0n (n = 0, 1) after reset: 0000h r address: sio00 fffffd0ah, sio01 fffffd1ah (b) sio0nl register 7 sion7 sio0nl (n = 0, 1) 6 sion6 5 sion5 4 sion4 3 sion3 2 sion2 1 sion1 0 sion0 after reset: 00h r address: sio00l fffffd0ah, sio01l fffffd1ah .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 494 receive-only mode ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 495 17.4 operation 17.4.1 transmission/reception completion interrupt request signal (intcsi0n) the intcsi0n signal is set (1) upon comple tion of data transmission/reception. writing to the csim0n register clears (0) the intcsi0n signal. caution the delay mode (csim0n.csi tn bit = 1) is valid only in th e master mode (csicn.cks0n2 to csicn.cks0n0 bits are not 111b). the delay m ode cannot be set when the slave mode is set (cks0n2 to cks0n0 bits = 111b). .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 496 figure 17-2. timing chart of intcsi0n signal output in delay mode (a) transmit/receive type 1 di7 di6 di5 di4 di3 di2 di1 di0 do7 do6 do5 do4 do3 do2 do1 do0 input clock sck0n (i/o) si0n (input) so0n (output) reg_r/w intcsi0n signal csotn bit delay (b) transmit/receive type 4 di7 di6 di5 di4 di3 di2 di1 di0 do7 do6 do5 do4 do3 do2 do1 do0 input clock sck0n (i/o) si0n (input) so0n (output) reg_r/w intcsi0n signal csotn bit delay remarks 1. reg_r/w: internal signal. this signal indica tes that the sirbn/sirb nl register read or the sotbn/sotbnl register write was performed. 2. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 497 17.4.2 single transfer mode (1) usage in the receive-only mode (csim0n.trmdn bit = 0), co mmunication is started by reading the sirbn/sirbnl register. in the transmission/reception mode (trmdn bit = 1) , communication is started by writing to the sotbn/sotbnl register. in the slave mode, the operation must be en abled beforehand (csim0n.csi0en bit = 1). when communication is started, t he value of the csim0n.csotn bit becomes 1 (transmission execution status). upon communication completion, the transmission/recepti on completion interrupt request signal (intcsi0n) is generated, and the csotn bit is cleared (0). t he next data communication request is then waited for. caution when the csotn bit = 1, do not manipulate the csi0n register. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 498 figure 17-3. timing chart in single transfer mode (1/2) (a) in transmission/recepti on mode, data length: 8 bits , transfer direction: msb first, no interrupt delay, single transfer mode, when aah is received and 55h is transmitted, transmit/receive type 1 01010101 10101010 (55h) (aah) aah aah abh 56h adh 5ah b5h 6ah d5h sck0n (i/o) so0n (output) si0n (input) reg_r/w sotbnl register sio0nl register sirbnl register csotn bit intcsi0n signal 55h (transmit data) write 55h to sotbnl register remarks 1. reg_r/w: internal signal. this signal indica tes that the sirbn/sirb nl register read or the sotbn/sotbnl register write was performed. 2. for the transmit/receive types, refer to 17.3 (2) clocked serial interface clock selection register n (csicn) . 3. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 499 figure 17-3. timing chart in single transfer mode (2/2) (b) in transmission/reception mode, da ta length: 8 bits, transfer directi on: msb first, no interrupt delay, single transfer mode, when aah is received and 55h is transmitted, transmit/receive type 2 01010101 10101010 aah aah abh 56h adh 5ah b5h 6ah d5h sck0n (i/o) so0n (output) si0n (input) reg_r/w sotbnl register sio0nl register sirbnl register csotn bit intcsi0n signal (55h) (aah) 55h (transmit data) write 55h to sotbnl register remarks 1. reg_r/w: internal signal. this signal indica tes that the sirbn/sirb nl register read or the sotbn/sotbnl register write was performed. 2. for the transmit/receive types, refer to 17.3 (2) clocked serial interface clock selection register n (csicn) . 3. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 500 17.4.3 continuous transfer mode (1) usage (receive-only: 8-bit data length) <1> set the continuous transfer mode (csim0n. auton bit = 1) and the receive-only mode (csim0n.trmdn bit = 0). <2> read the sirbnl register (start transfer with dummy read). <3> when the transmission/reception completion interr upt request signal (intcs i0n) has been generated, read the sirbnl register note (reserve next transfer). <4> repeat step <3> (n ? ? <> ? ? .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 501 figure 17-4. continuous transf er (receive-only) timing chart ? transmit/receive type 1, 8-bit data length din-1 sck0n (i/o) si0n (input) so0n (output) l sio0nl register sirbnl register reg_rd csotn bit intcsi0n signal rq_clr trans_rq din-2 din-1 sirbn (dummy) sirbn (d1) sirbn (d2) sirbn (d3) sirben (d4) sio0n (d5) <3> <5> <3> <3> <4> period during which next transfer can be reserved <2> <1> din-2 din-3 din-4 din-5 din-5 din-3 din-4 remarks 1. reg_rd: internal signal. this signal indica tes that the sirbnl register has been read. rq_clr: internal signal. transfer request clear signal. trans_rq: internal signal. transfer request signal. 2. n = 0, 1 in the case of the continuous transfer mode, two transfer requests are set at the star t of the first transfer. following the intcsi0n signal, transfer is continued if the sirbnl register can be read within the next transfer reservation period. if the sirbnl register cannot be read, transfer ends and the sirbnl register does not receive the new value of the sio0nl register. the last data can be obtained by reading the sio0nl register following completion of the transfer. .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 502 (2) usage (transmission/reception: 8-bit data length) <1> set the continuous transfer mode (csim0n.au ton bit = 1) and the transmission/reception mode (csim0n.trmdn bit = 1). <2> write the first data to the sotbfnl register. <3> write the 2nd data to the sotb nl register (start transfer). <4> when the transmission/reception completion interr upt request signal (intcs i0n) has been generated, write the next data to the sotbnl regi ster (reserve next transfer). re ad the sirbnl register to load the receive data. <5> repeat step <4> as long as data to be sent remains. <6> when the intcsi0n signal is generated, r ead the sirbnl register to load the (n ? <> .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 503 figure 17-5. continuous transfer (transmission/reception) timing chart ? < >< >< > < > < > < > < > < > < > < > < > < > .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 504 (3) next transfer reservation period in the continuous transfer mode, the next transfer mu st be prepared with the period shown in figure 17-6. figure 17-6. timing chart of next transfer reservation period (1/2) (a) when data length: 8 bits, transmit/receive type 1 sck0n (i/o) intcsi0n signal reservation period: 7 sck0n cycles (b) when data length: 16 bi ts, transmit/receive type 1 sck0n (i/o) intcsi0n signal reservation period: 15 sck0n cycles remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 505 figure 17-6. timing chart of next transfer reservation period (2/2) (c) when data length: 8 bi ts, transmit/receive type 2 sck0n (i/o) intcsi0n signal reservation period: 6.5 sck0n cycles (d) when data length: 16 bi ts, transmit/receive type 2 sck0n (i/o) intcsi0n signal reservation period: 14.5 sck0n cycles remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 506 (4) cautions to continue continuous transfers, it is necessary to either read the sirb n register or write to the sotbn register during the transfer reservation period. if access is performed to the sirbn register or the so tbn register when the transfer reservation period is over, the following occurs. (i) in case of conflict between transfer request clear and register access since transfer request clear has higher priority, the nex t transfer request is ignored. therefore, transfer is interrupted, and normal data transfer cannot be performed. figure 17-7. transfer request clear and register access conflict sck0n (i/o) intcsi0n signal rq_clr reg_r/w transfer reservation period remarks 1. rq_clr: internal signal. transfer request clear signal. reg_r/w: internal signal. this signal indica tes that the sirbn/sirb nl register read or the sotbn/sotbnl register write was performed. 2. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 507 (ii) in case of conflict between tr ansmission/reception completion inte rrupt request sign al (intcsi0n) generation and register access since continuous transfer has stopped once, ex ecuted as a new continuous transfer. in the slave mode, a bit phase erro r transfer error results (refer to figure 17-8 ). in the transmission/reception mode, the value of the so tbfn register is retransmitted, and illegal data is sent. figure 17-8. interrupt request and register ac cess conflict sck0n (i/o) intcsi0n signal rq_clr reg_r/w transfer reservation period 01 234 remarks 1. rq_clr: internal signal. transfer request clear signal. reg_r/w: internal signal. this signal indica tes that the sirbn/sirb nl register read or the sotbn/sotbnl register write was performed. 2. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 17 clocked serial interface 0 (csi0) preliminary user?s manual u16894ej1v0ud 508 17.5 output pins the following describes the output pins. for the setting of each pin, refer to table 4-16 settings when port pins are used for alternate functions . (1) sck0n pin when the csi0n operation is disabled (csim0n.csi0en bi t = 0), the sck0n pin output status is as follows. table 17-2. sck0n pin output status ckpn cks0n2 cks0n1 cks0n0 sck0n pin output 0 don?t care don?t care don?t care fixed to high level 1 1 1 high impedance 1 other than above fixed to low level remark n = 0, 1 (2) so0n pin when the csi0n operation is disabled (csi0en bit = 0), the so0n pin output status is as follows. table 17-3. so0n pin output status trmdn dapn auton ccln dirn so0n pin output 0 don?t care don?t care don?t care don?t care fixed to low level 0 don?t care don?t care don?t care so latch value (low level) 0 sotbn7 bit value 0 1 sotbn0 bit value 0 sotbn15 bit value 0 1 1 sotbn0 bit value 0 sotbfn7 bit value 0 1 sotbfn0 bit value 0 sotbfn15 bit value 1 1 1 1 1 sotbfn0 bit value remark n = 0, 1 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 509 chapter 18 clocked serial interface a (csia) with automatic transmit /receive function in the v850es/kg1+, two channels of csia are provided. 18.1 functions csian has the following two modes. ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 510 18.2 configuration csian consists of the following hardware. table 18-1. configuration of csian item configuration registers serial i/o shi ft register an (sioan) automatic data transfer address count register n (adtcn) csian buffer ram (csianbm, csianbml, csianbmh) (m = 0 to f) control registers serial operation mode specification register n (csiman) serial status register n (csisn) serial trigger register n (csitn) divisor selection register n (brgcan) automatic data transfer address point specification register n (adtpn) automatic data transfer interval specification register n (adtin) remark for the alternate-function pin settings, refer to table 4-16 settings when port pins are used for alternate functions . .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 511 figure 18-1. block diagram of csian f xx /6 to f xx /256 mastern sckan soan sian diran atmn cksan1 cksan0 atstpn atstan tsfn intcsian rxean txean 2 2 f xx buffer ram automatic data transfer address point specification register n (adtpn) automatic data transfer address count register n (adtcn) internal bus divisor selection register n (brgcan) serial i/o shift register an (sioan) serial trigger register n (csitn) serial status register n (csisn) selector selector 6-bit counter interrupt generator serial transfer controller serial clock counter automatic data transfer interval specification register n (adtin) .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 512 (1) serial i/o shift register an (sioan) this is an 8-bit register used to store transmit/receive data in 1-byte transfer mode (csiman.aten bit = 0). writing transmit data to the sioan regist er starts the transfer. in addition, after a transfer completion interrupt request signal (intcsian) is generat ed (csisn.tsfn bit = 0), data can be received by reading data from the sioan register. this register can be read or written in 8-bit units. ho wever, writing to the sioan register is prohibited when the tsfn bit = 1. after reset, this register is cleared to 00h. cautions 1. a transfer operation is started by writing to the sioa n register. consequently, when transmission is disabled (csiman.txean bi t = 0), write dummy data to the sioan register to start the transfer operation, and then perform a receive operation. 2. do not write data to the sioan register while the automatic transmit/receive function is operating. 7 sioan7 sioan (n = 0, 1) 6 sioan6 5 sioan5 4 sioan4 3 sioan3 2 sioan2 1 sioan1 0 sioan0 after reset: 00h r/w address: sioa0 fffffd46h, sioa1 fffffd56h (2) automatic data transfer a ddress count register n (adtcn) this is a register used to indicate buffer ram addresses during automatic transfer. when automatic transfer is stopped, the data position when transfer stopped can be ascertained by reading adtcn register value. this register is read-only in 8-bit units. however, reading from the adtcn register is prohibited when the csisn.tsfn bit = 1. after reset, this register is cleared to 00h. 7 adtcn7 adtcn (n = 0, 1) 6 adtcn6 5 adtcn5 4 adtcn4 3 adtcn3 2 adtcn2 1 adtcn1 0 adtcn0 after reset: 00h r address: adtc0 fffffd47h, adtc1 ffffd57h 18.3 registers serial interface csian is controlle d by the following six registers. ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 513 (1) serial operation mode speci fication register n (csiman) this is an 8-bit register used to c ontrol the serial transfer operation. this register can be read or written in 8-bit or 1-bit units. after reset, this register is cleared to 00h. <7> csiaen disable csian operation (soan: low level, sckan: high level) enable csian operation csiaen 0 1 csian operation enable/disable control csiman (n = 0, 1) 6 aten 5 atmn 4 mastern <3> txean <2> rxean <1> diran 0 0 1-byte transfer mode automatic transfer mode aten 0 1 automatic transfer operation enable/disable control single transfer mode (stops at address specified with adtpn register) repeat transfer mode (following transfer completion, the adtcn register is cleared to 00h and transmission starts again.) atmn 0 1 specification of automatic transfer mode slave mode (synchronized with sckan input clock) master mode (synchronized with internal clock) mastern 0 1 specification of csian master/slave mode disable transmission (soan: low level) enable transmission txean 0 1 transmission enable/disable control disable reception enable reception rxean 0 1 reception enable/disable control msb first lsb first diran 0 1 specification of transfer data direction after reset: 00h r/w address: csima0 fffffd40h, csima1 ffffd50h when the csiaen bit is cleared to 0, the csian unit is reset note asynchronously. when the csiaen bit = 0, the csian unit is reset, so to operate csian, first set the csiaen bit to 1. if the csiaen bit is cleared from 1 to 0, all the registers in the csian unit are initialized. before the csiaen bit is set to 1 again, first re-set the registers of the csian unit. if the csiaen bit is cleared from 1 to 0, the buffer ram value is not held. also, when the csiaen bit = 0, the buffer ram cannot be accessed. note the adtcn, csitn, and sioan regi sters and the csisn.tsfn bit are reset. .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 514 (2) serial status register n (csisn) this is an 8-bit register used to select the serial clock and to indicate the transfer status of csian. this register can be read or written in 8-bit or 1-bit units. after reset, this register is cleared to 00h. however, rewriting the csisn register is prohibited when the tsfn bit is 1. 7 cksan1 f xx f xx /2 f xx /4 f xx /8 20 mhz setting prohibited 100 ns 200 ns 400 ns 16 mhz setting prohibited 125 ns 250 ns 500 ns 10 mhz 100 ns 200 ns 400 ns 800 ns cksan1 0 0 1 1 cksan0 0 1 0 1 serial clock (f scka ) selection note csisn (n = 0, 1) 6 cksan0 5 0 4 0 3 0 2 0 1 0 0 tsfn csiaen bit = 0 at reset input at completion of specified transfer when transfer has been suspended by setting the csitn.atstpn bit to 1 from transfer start to completion of specified transfer rewriting csisn is prohibited when the csiman.csiaen bit is 1. tsfn 0 1 transfer status after reset: 00h r/w address: csis0 fffffd41h, csis1 ffffd51h note set f scka so as to satisfy the following conditions. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 515 (3) serial trigger register n (csitn) the csitn register between the buffer ram and shif t register is an 8-bit register used to control execution/stop of autom atic data transfer. this register can be read or written in 8-bit or 1-bi t units. however, manipulate only when the csiman.aten bit is 1 (manipulation prohibited when aten bit = 0). after reset, this register is cleared to 00h. 7 0 csitn (n = 0, 1) 6 0 5 0 4 0 3 0 2 0 <1> atstpn <0> atstan ? stop automatic data transfer atstpn 0 1 automatic data transfer suspension even when the atstpn bit is set to 1, transfer does not stop until 1 byte has been transferred. 1 is held until immediately before the transmission/reception completion interrupt request signal (intcsian) is generated, and atstpn is automatically cleared to 0 after that. after automatic transfer has been suspended, the data address at the point of suspension is stored in the adtcn register. a function to resume automatic data transfer is not provided, so if transfer has been interrupted by setting the atstpn bit to 1, set each register again, and set the atstan bit to 1 to start automatic data transfer. after reset: 00h r/w address: csit0 fffffd42h, csit1 ffffd52h ? start automatic data transfer atstan 0 1 automatic data transfer start even when the atstan bit is set to 1, automatic data transfer does not start until 1 byte has been transferred. 1 is held until immediately before the intcsian signal is generated, and atstan is automatically cleared to 0 after that. .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 516 (4) divisor selection register n (brgcan) this is an 8-bit register used to control the se rial transfer speed (divisor of csia clock). this register can be read or written in 8-bit units. however, when the csisn.tsfn bit is 1, rewriting the brgcan register is prohibited. after reset, this register is set to 03h. 7 0 brgcn1 0 0 1 1 brgcn0 0 1 0 1 selection of csian serial clock (f scka division ratio) brgcan (n = 0, 1) 6 0 5 0 4 0 3 0 2 0 1 brgcn1 0 brgcn0 after reset: 03h r/w address: brgca0 fffffd43h, brgca1 ffffd53h 6 (f scka /6) 8 (f scka /8) 16 (f scka /16) 32 (f scka /32) (5) automatic data transfer address point specification register n (adtpn) this is an 8-bit register used to specify the buffe r ram address that ends transfer during automatic data transfer (csiman.aten bit = 1). this register can be read or written in 8-bit units. however, when the csisn.tsfn bit is 1, rewriting the adtpn register is prohibited. after reset, this register is cleared to 00h. in the v850es/kg1+, 00h to 1fh can be specified because 32 bytes of buffer ram are incorporated. example when the adtp0 register is set to 07h 8 bytes of fffffe00h to fffffe07h are transferred. in repeat transfer mode (csiman.atmn bit = 1), trans fer is performed repeatedly up to the address value specified by the adtpn register. example when the adtp0 register is set to 07h (repeat transfer mode) transfer is repeated as fffffe00h to fffffe07h, ? . 7 0 adtpn (n = 0, 1) 6 0 5 0 4 adtpn4 3 adtpn3 2 adtpn2 1 adtpn1 0 adtpn0 after reset: 00h r/w address: adtp0 fffffd44h, adtp1 ffffd54h caution be sure to clear bits 5 to 7 to 0. .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 517 the relationship between buffer ram address values and the adtpn register setting values is shown below. table 18-2. relationship between buffer ram a ddress values and adtp0 register setting values buffer ram address value adtp0 register setting value b uffer ram address value adtp0 register setting value fffffe00h 00h fffffe10h 10h fffffe01h 01h fffffe11h 11h fffffe02h 02h fffffe12h 12h fffffe03h 03h fffffe13h 13h fffffe04h 04h fffffe14h 14h fffffe05h 05h fffffe15h 15h fffffe06h 06h fffffe16h 16h fffffe07h 07h fffffe17h 17h fffffe08h 08h fffffe18h 18h fffffe09h 09h fffffe19h 19h fffffe0ah 0ah fffffe1ah 1ah fffffe0bh 0bh fffffe1bh 1bh fffffe0ch 0ch fffffe1ch 1ch fffffe0dh 0dh fffffe1dh 1dh fffffe0eh 0eh fffffe1eh 1eh fffffe0fh 0fh fffffe1fh 1fh table 18-3. relationship between buffer ram a ddress values and adtp1 register setting values buffer ram address value adtp1 register setting value b uffer ram address value adtp1 register setting value fffffe20h 00h fffffe30h 10h fffffe21h 01h fffffe31h 11h fffffe22h 02h fffffe32h 12h fffffe23h 03h fffffe33h 13h fffffe24h 04h fffffe34h 14h fffffe25h 05h fffffe35h 15h fffffe26h 06h fffffe36h 16h fffffe27h 07h fffffe37h 17h fffffe28h 08h fffffe38h 18h fffffe29h 09h fffffe39h 19h fffffe2ah 0ah fffffe3ah 1ah fffffe2bh 0bh fffffe3bh 1bh fffffe2ch 0ch fffffe3ch 1ch fffffe2dh 0dh fffffe3dh 1dh fffffe2eh 0eh fffffe3eh 1eh fffffe2fh 0fh fffffe3fh 1fh .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 518 (6) automatic data transfer inter val specification register n (adtin) this is an 8-bit register used to specify the interv al period between 1-byte trans fers during automatic data transfer (csiman.aten bit = 1). set this register when in master mode (csiman.mast ern bit = 1) (setting is unnecessary in slave mode). setting in 1-byte transfer mode (aten bit = 0) is also va lid. when the interval ti me specified by the adtin register after the end of 1-byte transfer has elapsed, a transmission/reception completion interrupt request signal (intcsian) is output. the number of clocks for the interval can be set to between 0 and 63 clocks. this register can be read or written in 8-bit units. however, when the csisn.tsfn bit is 1, rewriting the adtin register is prohibited. after reset, this register is cleared to 00h. adtin (n = 0, 1) after reset: 00h r/w address: adti0 fffffd45h, adti1 ffffd55h 7 0 6 0 5 adtin5 4 adtin4 3 adtin3 2 adtin2 1 adtin1 0 adtin0 the specified interval time is the transfer clock (specif ied by the brgcan register) multiplied by an integer value. example when adtin register = 03h sckan interval time of 3 clocks (7) csian buffer ram (csianbm) this area holds transmit/receive data (up to 32 byte s) in automatic transfer mode in 1-byte units. this register can be read or written in 16-bit units. however, when the higher 8 bits and the lower 8 bits of the csianbm register are used as the csianbmh r egister and csianbml register, respectively, these registers can be read or written in 8-bit units. after automatic transfer is started, only data equal to one byte more than the number of bytes stored in the adtpn register is transmitted/received in sequence from the csianb0l register. cautions 1. to read the value of th e csianbm register after data is written to the register, wait for the duration of more than six clocks of f scka (serial clock set by the csisn.cksan1 and csisn.cksan0 bits) or until data is writte n to the buffer ram at another address. 2. when the main clock stops and th e cpu operates on the subclock, do not access the csianbm register. for details, refer to 3.4.8 (2). remark n = 0, 1 m = 0 to f .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 519 table 18-4. csia0 buffer ram manipulatable bits address symbol r/w 8 16 after reset fffffe00h csia0b0 r/w .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 520 table 18-5. csia1 buffer ram manipulatable bits address symbol r/w 8 16 after reset fffffe20h csia1b0 r/w .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 521 18.4 operation csian can be used in the following two modes. ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 522 (1) 1-byte transmission/recep tion communication operation (a) 1-byte transmission/reception when the csiman.csiaen bit and the csiman.aten bit = 1, 0, respectively, if transfer data is written to the sioan register, the data is out put via the soa0 pin in synchronization with the sckan pin falling edge, and then input via the sian pin in synchroni zation with the falling edge of the sckan pin, and stored in the sioan register in synchroniza tion with the rising edge 1 clock later. data transmission and data reception can be performed simultaneously. if only reception is to be performed, transfer can only be started by writing a dummy value to the sioan register. when transfer of 1 byte is complete, a transmission/reception completion interrupt request signal (intcsian) is generated. in 1-byte transmission/reception, the se tting of the csiman.atmn bit is invalid. be sure to read data after confi rming that the csisn.tsfn bit = 0. caution determine the setting proc edure of alternate-function pins considering the relationship with the communication partner. figure 18-2. 3-wire serial i/o mode timing 12345678 di7 di6 di5 di4 di3 di2 di1 di0 do7 do6 do5 do4 do3 do2 do1 do0 end of transfer transfer starts at falling edge of sckan pin sckan sian soan intcsian sioan write tsfn caution the soan pin becomes low l evel by the sioan register write. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 523 (b) data format in the data format, data is changed in synchronization with the sckan pin falling edge as shown in figure 18-3. the data length is fixed to 8 bits and the data trans fer direction can be switched by the specification of the csiman.diran bit. figure 18-3. format of transmit/receive data (a) msb-first (diran bit = 0) sckan sian do7 do6 do5 do4 do3 do2 do1 do0 soan di7 di6 di5 di4 di3 di2 di1 di0 (b) lsb-first (diran bit = 1) sckan sian do0 do1 do2 do3 do4 do5 do6 do7 soan di0 di1 di2 di3 di4 di5 di6 di7 remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 524 (c) switching msb/lsb as start bit figure 18-4 shows the configuration of the sioan register and the internal bus. as shown in the figure, msb/lsb can be read or written in reverse form. switching msb/lsb as the start bit can be specified using the csiman.diran bit. start bit switching is realized by switching the bit order for data written to the sioan register. the sioan register shift order remains unchanged. thus, switching between msb-first and lsb-first must be performed before writing data to the sioan register. figure 18-4. transfer bit order switching circuit 7 6 internal bus 1 0 lsb-first msb-first read/write gate sian shift register n (sioan) read/write gate soan sckan dq soan latch remark n = 0, 1 (d) transfer start serial transfer is started by setting transfer data to the sioan register when the following two conditions are satisfied. ? ? .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 525 18.4.2 3-wire serial i/o mode with au tomatic transmit/receive function up to 32 bytes of data can be transmi tted/received without using software in the mode in which the csiman.aten bit is set to 1. after communication is started, only dat a of the set number of bytes stored in ram in advance can be transmitted, and only data of the set number of bytes can be received and stored in ram. the 3-wire serial i/o mode with automatic transmit/receive function is controlled by the following registers. ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 526 (2) automatic transmission/re ception communication operation (a) automatic transmi ssion/reception mode automatic transmission/reception can be performed using buffer ram. the data stored in the buffer ram is output from the soan pin via the sioan register in synchronization with the sckan pin falling edge by performing (a) and (b) in (1) automatic transmit/receive data setting . the data is then input from the sian pin via the sioa n register in synchronization with the falling edge of the sckan pin and the receive data is stored in the buffer ram in synchronization with the rising edge 1 clock later. data transfer ends if the csisn.tsfn bit is cleared to 0 when any of the following conditions is met. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 527 figure 18-5. automatic transmission/reception mo de operation timings interval sckan d7 soan sian intcsian tsfn interval d6 d5 d4 d3 d2 d1 d0 d7 d6 d5 d4 d3 d2 d1 d0 d7 d6 d5 d4 d3 d2 d1 d0 d7 d6 d5 d4 d3 d2 d1 d0 cautions 1. because, in the automatic transmission/reception mode, the automatic transmit/receive function reads/writes da ta from/to the buffer ram after 1-byte transmission/reception, an inter val is inserted until the next transmission/reception. as the buffer ram read/write is performed at the same time as cpu processing, the interval is dependent up on the value of the adtin register. 2. when the tsfn bit is cleared , the soan pin becomes low level. 3. if cpu access to the buffer ram conflicts with csian read/write during the interval time, the inter val time becomes longer. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 528 figure 18-6. automatic transm ission/reception mode flowchart start write transmit data in buffer ram set adtpn register to the value (pointer value) obtained by subtracting 1 from the number of transmit data bytes set automatic transmission/ reception mode set csitn.atstan bit to 1 write transmit data from buffer ram to sioan register transmission/reception operation write receive data from sioan register to buffer ram adtpn register = adtcn register no tsfn bit = 0 no end yes yes increment pointer value software execution hardware execution software execution remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 529 in 6-byte transmission/reception (c siman.atmn bit = 0, csiman.rxean bit = 1, csiman.txean bit = 1) in automatic transmission/reception m ode, buffer ram operates as follows. (i) when transmission/reception operation is started (refer to figure 18-7 (a).) when the csitn.atstan bit is set to 1, transmit data 1 (t1) is transferred from the buffer ram to the sioan register. when transmission of the firs t byte is completed, receive data 1 (r1) is transferred from the sioan register to the buffer ram, and the adtcn register is incremented. then transmit data 2 (t2) is transferred from the buffer ram to the sioan register. (ii) 4th byte transmission/reception point (refer to figure 18-7 (b).) transmission/reception of the third byte is complete d, and transmit data 4 (t4) is transferred from the buffer ram to the sioan register. when transmission of the fourth byte is completed, the receive data 4 (r4) is transferred from the sioan register to the buffer ram, and the value of the adtcn register is incremented. (iii) completion of transmission/rece ption (refer to figure 18-7 (c).) when transmission of the sixth byte is completed, receive data 6 (r6) is transferred from sioan register to the buffer ram, and the transmission/ reception completion interrupt request signal (intcsian) is generated. figure 18-7. buffer ram operation in 6-byte transmission/reception (in automatic transmissi on/reception mode) (1/2) (a) when transmission/rece ption operation is started transmit data 6 (t6) transmit data 5 (t5) transmit data 4 (t4) transmit data 3 (t3) transmit data 2 (t2) transmit data 1 (t1) fffffe1fh fffffe05h fffffe00h receive data 1 (r1) sioan register not generated intcsian signal 0 adtcn register +1 5 adtpn register remarks 1. the above addresses are for csia0. fo r csia1, the addresses are fffffe20h to fffffe3fh. 2. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 530 figure 18-7. buffer ram operation in 6-byte transmission/reception (in automatic transmissi on/reception mode) (2/2) (b) 4th byte transmission/reception transmit data 6 (r6) transmit data 5 (r5) transmit data 4 (r4) receive data 3 (t3) receive data 2 (t2) receive data 1 (t1) fffffe1fh fffffe05h fffffe00h receive data 4 (r4) sioan register not generated intcsian signal 3 adtcn register +1 5 adtpn register (c) completion of transmission/reception receive data 6 (r6) receive data 5 (r5) receive data 4 (r4) receive data 3 (r3) receive data 2 (r2) receive data 1 (r1) fffffe1fh fffffe05h fffffe00h sioan register generated intcsian signal 5 adtcn register 5 adtpn register remarks 1. the above addresses are for csia0. fo r csia1, the addresses are fffffe20h to fffffe3fh. 2. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 531 (b) automatic transmission mode in this mode, the specified number of 8-bit unit data are transmitted. serial transfer is started when the csitn.atst an bit is set to 1 while the csiman.csiaen, csiman.aten, and csiman.txean bits are set to 1. when the final byte has been transmitted, an inte rrupt request signal (intcsian) is generated. figure 18-8 shows the automatic transmission mode operation timing, and figure 18-9 shows the operation flowchart. figure 18-10 shows the operat ion of the buffer ram when 6 bytes of data are transmitted. figure 18-8. automatic transm ission mode operation timing interval sckan d7 soan intcsian tsfn d6 d5 d4 d3 d2 d1 d0 d7 d6 d5 d4 d3 d2 d1 d0 interval cautions 1. because, in the automatic transmission mode, th e automatic transmit/receive function reads data from the buffer ram a fter 1-byte transmission, an interval is inserted until the next transm ission. as the buffer ram read is performed at the same time as cpu processing, the interval is dependent upon the value of the adtin register. 2. when the tsfn bit is cleared , the soan pin becomes low level. 3. if cpu access to the buffer ram conflicts with csian read/write during the interval time, the inter val time becomes longer. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 532 figure 18-9. automatic tr ansmission mode flowchart start write transmit data in buffer ram set adtpn register to the value (pointer value) obtained by subtracting 1 from the number of transmit data bytes set automatic transmission mode set csitn.atstan bit to 1 write transmit data from buffer ram to sioan register transmission operation adtpn register = adtcn register no tsfn bit = 0 no end yes yes increment pointer value software execution hardware execution software execution remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 533 in 6-byte transmission (csiman.atmn bit = 0, csiman.rxean bit = 0, csiman.txean bit = 1, csiman.aten bit = 1) in automatic transmission mode, buffer ram operates as follows. (i) when transmission is started (refer to figure 18-10 (a).) when the csitn.atstan bit is set to 1, transmit data 1 (t1) is transferred from the buffer ram to the sioan register. when transmission of the firs t byte is completed, the adtcn register is incremented. then transmit data 2 (t2) is transfe rred from the buffer ram to the sioan register. (ii) 4th byte transm ission point (refer to figure 18-10 (b).) transmission of the third byte is completed, and transmit data 4 (t4) is transferred from the buffer ram to the sioan register. when transmission of t he fourth byte is completed, the value of the adtcn register is incremented. (iii) completion of transmission (refer to figure 18-10 (c).) when transmission of the sixth byte is completed, the interrupt request signal (intcsian) is generated, and the tfsn flag is cleared to 0. figure 18-10. buffer ram operation in 6-byte transmission (in automatic transmission mode) (1/2) (a) when transmission is started transmit data 6 (t6) transmit data 5 (t5) transmit data 4 (t4) transmit data 3 (t3) transmit data 2 (t2) transmit data 1 (t1) fffffe1fh fffffe05h fffffe00h sioan register not generated intcsian signal 0 adtcn register +1 5 adtpn register remarks 1. the above addresses are for csia0. fo r csia1, the addresses are fffffe20h to fffffe3fh. 2. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 534 figure 18-10. buffer ram operation in 6-byte transmission (in automatic transmission mode) (2/2) (b) 4th byte transmission point transmit data 6 (t6) transmit data 5 (t5) transmit data 4 (t4) transmit data 3 (t3) transmit data 2 (t2) transmit data 1 (t1) fffffe1fh fffffe05h fffffe00h sioan register not generated intcsian signal 3 adtcn register +1 5 adtpn register (c) completion of transmission transmit data 6 (t6) transmit data 5 (t5) transmit data 4 (t4) transmit data 3 (t3) transmit data 2 (t2) transmit data 1 (t1) fffffe1fh fffffe05h fffffe00h sioan register generated intcsian signal 5 adtcn register 5 adtpn register remarks 1. the above addresses are for csia0. fo r csia1, the addresses are fffffe20h to fffffe3fh. 2. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 535 (c) repeat transmission mode in this mode, data stored in the buffer ram is transmitted repeatedly. serial transfer is started when the csitn.atst an bit is set to 1 while the csiman.csiaen, csiman.aten, csiman.atmn, and csiman.txean bits are set to 1. unlike the basic transmission mode, after the spec ified number of bytes has been transmitted, the transmission/reception completion interrupt request si gnal (intcsian) is not generated, the adtcn register is reset to 0, and the buffe r ram contents are transmitted again. the repeat transmission mode operation timing is shown in figure 18-11, and the operation flowchart in figure 18-12. figure 18-13 shows the operation of the buffer ram w hen 6 bytes of data are transmitted in the repeat transmission mode. figure 18-11. repeat transmission mode operation timing d7 d6 d5 d4 d3 d2 d1 d0 d7 d6 d5 d4 d3 d2 d1 d0 interval interval d7 d6 d5 sckan soan cautions 1. because, in the repeat transmi ssion mode, a read is performed on the buffer ram after the transmission of one byte, th e interval is included in the period up to the next transmission. as the buffer ram read is performed at the same time as cpu processing, the interval is depe ndent upon the value of the adtin register. 2. if cpu access to the buffer ram conflicts with csian read/write during the interval time, the inter val time becomes longer. remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 536 figure 18-12. repeat transmission mode flowchart start write transmit data in buffer ram set adtpn register to the value (pointer value) obtained by subtracting 1 from the number of transmit data bytes set repeat transmission mode set csitn.atstan bit to 1 write transmit data from buffer ram to sioan register transmission operation adtpn register = adtcn register no yes increment pointer value software execution hardware execution reset adtcn register to 0 remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 537 in 6-byte transmission (csiman.atmn bit = 1, csiman.rxean bit = 0, csiman.txean bit = 1, csiman.aten bit = 1) in repeat transmission mode, buffer ram operates as follows. (i) when transmission is started (refer to figure 18-13 (a).) when the csitn.atstan bit is set to 1, transmit data 1 (t1) is transferred from the buffer ram to the sioan register. when transmission of the firs t byte is completed, the value of the adtcn register is incremented. then transmit data 2 (t2) is transferred from the buffer ram to the sioan register. (ii) upon completion of transmission of 6 bytes (refer to figure 18-13 (b).) when transmission of the sixth byte is completed, the interrupt request signal (intcsian) is not generated. the adtcn register is reset to 0. (iii) 7th byte transmission poin t (refer to figure 18-13 (c).) transmit data 1 (t1) is transferred from the bu ffer ram to the sioan register again. when transmission of the first byte is completed, the va lue of the adtcn register is incremented. then transmit data 2 (t2) is transferred from the buffer ram to the sioan register. figure 18-13. buffer ram operation in 6-byte transmission (in repeat transmission mode) (1/2) (a) when transmission is started transmit data 6 (t6) transmit data 5 (t5) transmit data 4 (t4) transmit data 3 (t3) transmit data 2 (t2) transmit data 1 (t1) fffffe1fh fffffe05h fffffe00h sioan register not generated intcsian signal 0 adtcn register +1 5 adtpn register remarks 1. the above addresses are for csia0. fo r csia1, the addresses are fffffe20h to fffffe3fh. 2. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 538 figure 18-13. buffer ram operation in 6-byte transmission (in repeat transmission mode) (2/2) (b) upon completion of transmission of 6 bytes transmit data 6 (t6) transmit data 5 (t5) transmit data 4 (t4) transmit data 3 (t3) transmit data 2 (t2) transmit data 1 (t1) fffffe1fh fffffe05h fffffe00h sioan register not generated intcsian signal 5 adtcn register 5 adtpn register (c) 7th byte transmission point transmit data 6 (t6) transmit data 5 (t5) transmit data 4 (t4) transmit data 3 (t3) transmit data 2 (t2) transmit data 1 (t1) fffffe1fh fffffe05h fffffe00h sioan register not generated intcsian signal 0 adtcn register +1 5 adtpn register remarks 1. the above addresses are for csia0. fo r csia1, the addresses are fffffe20h to fffffe3fh. 2. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 539 (d) data format in the data format, data is changed in synchronization with the sckan pin falling edge as shown in figure 18-14. the data length is fixed to 8 bits and the data trans fer direction can be switched by the specification of the csiman.diran bit. figure 18-14. format of csian transmit/receive data (a) msb-first (diran bit = 0) sckan sian do7 do6 do5 do4 do3 do2 do1 do0 soan di7 di6 di5 di4 di3 di2 di1 di0 (b) lsb-first (diran bit = 1) sckan sian do0 do1 do2 do3 do4 do5 do6 do7 soan di0 di1 di2 di3 di4 di5 di6 di7 remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 18 clocked serial interface a (csia) with automatic transmit/receive function preliminary user?s manual u16894ej1v0ud 540 (e) automatic transmission/rece ption suspension and restart automatic transmission/reception can be temporarily suspended by setting the csitn.atstpn bit to 1. during 8-bit data transfer, the transmission/reception is not suspended. it is suspended upon completion of 8-bit data transfer. when suspended, the csisn.tsfn bit is cleared to 0 after transfer of the 8th bit. to restart automatic transmission/rec eption, set the csitn.atstan bit to 1. the remaining data can be transmitted in this way. cautions 1. if the idle instruction is executed during automatic transmissi on/reception, transfer is suspended and the idle mode is set if during 8-bit data transfer. when the idle mode is cleared, automatic transmission/ reception is restarted from the suspended point. 2. when suspending automa tic transmission/reception, do not change the operating mode to 3-wire serial i/o mode while the tsfn bit = 1. figure 18-15. automatic transmissi on/reception suspension and restart sckan soan d7 d6 d5 d4 d3 d2 d1 d0 d7 d6 d5 d4 d3 d2 d1 d0 sian d7 d6 d5 d4 d3 d2 d1 d0 d7 d6 d5 d4 d3 d2 d1 d0 restart command atstan bit = 1 suspend atstpn bit = 1 (suspend command) remark n = 0, 1 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 541 chapter 19 i 2 c bus to use the i 2 c bus function, set the p38/sda0 and p39/scl0 pins to n-ch open drain output as the alternate function. in the v850es/kg1+, one channel of i 2 c bus is provided. the products with an on-chip i 2 c bus are shown below. .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 542 figure 19-1. block diagram of i 2 c0 iice0 dq cl01, cl00 sda0 scl0 intiic0 f xx lrel0 wrel0 spie0 wtim0 acke0 stt0 spt0 msts0 ald0 exc0 coi0 trc0 ackd0 std0 spd0 cld0 dad0 smc0 dfc0 cl01 cl00 clx0 stcf0 iicbsy0 stcen0 iicrsv0 internal bus iic status register 0 (iics0) iic control register 0 (iicc0) slave address register 0 (sva0) noise eliminator noise eliminator match signal iic shift register 0 (iic0) so latch set clear n-ch open- drain output n-ch open- drain output data hold time correction circuit ack output circuit wakeup controller ack detector stop condition detector serial clock counter interrupt request signal generator serial clock controller serial clock wait controller prescaler start condition detector internal bus iic clock selection register 0 (iiccl0) iic function expansion register 0 (iicx0) iic flag register 0 (iicf0) start condition generator bus status detector .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 543 a serial bus configuration example is shown below. figure 19-2. serial bus configuration example using i 2 c bus sda scl sda +v dd +v dd scl sda scl slave cpu3 address 3 sda scl slave ic address 4 sda scl slave ic address n master cpu1 slave cpu1 address 1 serial data bus serial clock master cpu2 slave cpu2 address 2 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 544 19.2 configuration i 2 c0 includes the following hardware. table 19-1. configuration of i 2 c0 item configuration registers iic shift register 0 (iic0) slave address register 0 (sva0) control registers iic control register 0 (iicc0) iic status register 0 (iics0) iic flag register 0 (iiccf0) iic clock selection register 0 (iiccl0) iic function expansion register 0 (iicx0) (1) iic shift register 0 (iic0) the iic0 register is used to convert 8-bit serial data to 8-bit parallel data and to convert 8-bit parallel data to 8- bit serial data. the iic0 register can be used for both transmission and reception. write and read operations to the iic0 r egister are used to control the act ual transmit and receive operations. the iic0 register can be read or written in 8-bit units. after reset, iic0 is cleared to 00h. (2) slave address register 0 (sva0) the sva0 register sets local addresses when in slave mode. the sva0 register can be read or written in 8-bit units. after reset, sva0 is cleared to 00h. (3) so latch the so latch is used to retain the sda0 pin?s output level. (4) wakeup controller this circuit generates an interrupt r equest signal (intiic0) when the address re ceived by this register matches the address value set to the sva0 register or when an extension code is received. (5) prescaler this selects the sampling clock to be used. (6) serial clock counter this counter counts the serial clocks that are output and the serial clocks t hat are input during transmit/receive operations and is used to verify that 8-bit data was sent or received. (7) interrupt request signal generator this circuit controls the generation of interrupt request signals (intiic0). an i 2 c interrupt is generated followi ng either of two triggers. ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 545 (8) serial clock controller in master mode, this circuit generates the clo ck output via the scl0 pin from a sampling clock. (9) serial clock wait controller this circuit controls the wait timing. (10) ack output circuit, stop condition detector , start condition detector, and ack detector these circuits are used to output and detect various control signals. (11) data hold time correction circuit this circuit generates the hold time for data corre sponding to the falling edge of the serial clock. (12) start condition generator this circuit generates a start condition when the iicc0.stt0 bit is set. however, in the communication reservation disabled st atus (iicf0.iicrsv0 bit = 1), when the bus is not released (iicf0.iicbsy0 bit = 1), start condition requests are ignored and the iicf0.stcf0 bit is set to 1. (13) bus status detector this circuit detects whether or not the bus is rel eased by detecting start conditions and stop conditions. however, as the bus status cannot be detected immediatel y following operation, the init ial status is set by the iicf0.stcen0 bit. .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 546 19.3 registers i 2 c0 is controlled by the following registers. iic control register 0 (iicc0) iic status register 0 (iics0) iic flag register 0 (iicf0) iic clock selection register 0 (iiccl0) iic function expansion register 0 (iicx0) the following registers are also used. iic shift register 0 (iic0) slave address register 0 (sva0) remark for the alternate-function pin settings, refer to table 4-16 settings when port pins are used for alternate functions . (1) iic control register 0 (iicc0) the iicc0 register is used to enable/stop i 2 c0 operations, set wait timing, and set other i 2 c operations. the iicc0 register can be read or written in 8-bit or 1-bit units. after reset, iicc0 is cleared to 00h. .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 547 (1/4) after reset: 00h r/w address: fffffd82h <7> <6> <5> <4> <3> <2> <1> <0> iicc0 iice0 lrel0 wrel0 spie0 wtim0 acke0 stt0 spt0 iice0 i 2 c0 operation enable/dis able specification 0 stop operation. reset the iics0 register note 1 . stop internal operation. 1 enable operation. condition for clearing (iice0 bit = 0) condition for setting (iice0 bit = 1) ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 548 (2/4) spie0 enable/disable generation of interr upt request when stop condition is detected 0 disable 1 enable condition for clearing (spie0 bit = 0) note condition for setting (spie0 bit = 1) ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 549 (3/4) stt0 start condition trigger 0 do not generate a start condition. 1 when bus is released (in stop mode): generate a start condition (for starting as master). the sda0 line is changed from high level to low level and then the start condition is generated. next, afte r the rated amount of time has elapsed, the scl0 line is changed to low level. when a third party is communicating ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 550 (4/4) spt0 stop condition trigger 0 stop condition is not generated. 1 stop condition is generated (terminati on of master device?s transfer). after the sda0 line goes to low level, either set the scl0 line to high level or wait until the scl0 pin goes to high level. next, after the rated amount of time has elapsed, the sda0 line is changed from low level to high level and a stop condition is generated. cautions concerning setting timing for master reception: cannot be set to 1 during transfer. can be set to 1 only when the acke0 bit has been cleared to 0 and during the wait period after slave has been notified of final reception. for master transmission: a stop condition cannot be generat ed normally during the ack signal period. set to 1 during the wait period. ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 551 (2) iic status register 0 (iics0) the iics0 register indica tes the status of the i 2 c0 bus. the iics0 register is read-only, in 8-bit or 1-bit units. after reset, iics0 is cleared to 00h. caution when the main clock is stopped and the cpu is operating on the subclock, do not access the iics0 register using an access method that causes a wait. for details, refer to 3.4.8 (2). (1/3) after reset: 00h r address: fffffd86h <7> <6> <5> <4> <3> <2> <1> <0> iics0 msts0 ald0 exc0 coi0 trc0 ackd0 std0 spd0 msts0 master device status 0 slave device status or communication standby status 1 master device communication status condition for clearing (msts0 bit = 0) condition for setting (msts0 bit = 1) ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 552 (2/3) exc0 detection of extension code reception 0 extension code was not received. 1 extension code was received. condition for clearing (exc0 bit = 0) condition for setting (exc0 bit = 1) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 553 (3/3) ackd0 detection of acknowledge signal (ack) 0 ack signal was not detected. 1 ack signal was detected. condition for clearing (ackd0 bit = 0) condition for setting (ackd0 bit = 1) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 554 (3) iic flag register 0 (iicf0) iicf0 is a register that sets the operation mode of i 2 c0 and indicates the status of the i 2 c bus. this register can be read or written in 8-bit or 1-bit units. however, the stcf0 and iicbsy0 bits are read-only. the iicrsv0 bit can be used to enable/disable t he communication reservation function (refer to 19.13 communication reservation ). the stcen0 bit can be used to set the in itial value of the iicbsy0 bit (refer to 19.14 cautions ). the iicrsv0 and stcen0 bits can be written only when the operation of i 2 c0 is disabled (iicc0.iice0 bit = 0). when operation is enabled, the iic f0 register can be read. after reset, iicf0 is cleared to 00h. .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 555 <7> stcf0 condition for clearing (stcf0 bit = 0) cleared by the stt0 bit = 1 reset condition for setting (stcf0 bit = 1) generating start condition unsuccessful and the stt0 bit cleared to 0 when communication reservation is disabled (iicrsv0 bit = 1). stcf0 0 1 generate start condition start condition generation unsuccessful: clear stt0 flag stt0 clear flag iicf0 <6> iicbsy0 5 0 4 0 3 0 2 0 <1> stcen0 <0> iicrsv0 after reset: 00h r/w note address: fffffd8ah condition for clearing (iicbsy0 bit = 0) detection of stop condition reset condition for setting (iicbsy0 bit = 1) detection of start condition setting of the iice0 bit when the stcen0 bit = 0 iicbsy0 0 1 bus release status bus communication status i 2 c0 bus status flag condition for clearing (stce0 bit = 0) detection of start condition reset condition for setting (stce0 bit = 1) setting by instruction stcen0 0 1 after operation is enabled (iice0 bit = 1), enable generation of a start condition upon detection of a stop condition. after operation is enabled (iice0 bit = 1), enable generation of a start condition without detecting a stop condition. initial start enable trigger condition for clearing (iicrsv0 bit = 0) cleared by instruction reset condition for setting (iicrsv0 bit = 1) setting by instruction iicrsv0 0 1 enable communication reservation disable communication reservation communication reservation function disable bit note bits 6 and 7 are read-only bits. cautions 1. write to the stcen0 bit only wh en the operation is stopped (iice0 bit = 0). 2. as the bus release status (iicbsy0 bit = 0) is recognized regardless of the actual bus status when the stcen0 bit = 1, when gene rating the first start condition (stt0 bit = 1), it is necessary to verify that no third party communications are in progress in order to prevent such communications from being destroyed. 3. write to the iicrsv0 bit only when the operation is stopped (iice0 bit = 0). .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 556 (4) iic clock selection register 0 (iiccl0) the iiccl0 register is used to set the transfer clock for i 2 c0. the iiccl0 register can be r ead or written in 8-bit or 1-bit units. however, the cld0 and dad0 bits are read- only. the smc0, cl01, and cl00 bits are set in combination with the iicx0.clx0 bit (refer to 19.3 (6) i 2 c0 transfer clock setting method ). after reset, iiccl0 is cleared to 00h. after reset: 00h r/w note address: fffffd84h 7 6 <5> <4> 3 2 1 0 iiccl0 0 0 cld0 dad0 smc0 dfc0 cl01 cl00 cld0 detection of scl0 pin level (valid only when iicc0.iice0 bit = 1) 0 the scl0 pin was detected at low level. 1 the scl0 pin was detected at high level. condition for clearing (cld0 bit = 0) condition for setting (cld0 bit = 1) ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 557 (5) iic function expansion register 0 (iicx0) this register sets the function expansion of i 2 c0 (valid only in high-speed mode). this register can be read or written in 8-bit or 1-bit units. the clx0 bit is set in combination with the iiccl0.smc0, iiccl0.cl01, and iiccl0.cl00 bits (refer to 19.3 (6) i 2 c0 transfer clock setting method ). after reset, iicx0 is cleared to 00h. after reset: 00h r/w address: fffffd85h 7 6 5 4 3 2 1 <0> iicx0 0 0 0 0 0 0 0 clx0 (6) i 2 c0 transfer clock setting method the i 2 c0 transfer clock frequency (f scl ) is calculated using the following expression. f scl = 1/(m ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 558 table 19-2. selection clock setting iicx0 iiccl0 bit 0 bit 3 bit 1 bit 0 clx0 smc0 cl01 cl00 selection clock transfer clock (f xx /m) settable internal system clock frequency (f xx ) range operation mode 0 0 0 0 f xx /2 f xx /88 4.0 mhz to 8.38 mhz 0 0 0 1 f xx /2 f xx /172 8.38 mhz to 16.76 mhz 0 0 1 0 f xx f xx /86 4.19 mhz to 8.38 mhz 0 0 1 1 f xx /3 f xx /198 16.0 mhz to 19.8 mhz normal mode (smc0 bit = 0) 0 1 0 x f xx /2 f xx /48 8 mhz to 16.76 mhz 0 1 1 0 f xx f xx /24 4 mhz to 8.38 mhz 0 1 1 1 f xx/ 3 f xx /54 16 mhz to 20 mhz high-speed mode (smc0 bit = 1) 1 0 x x setting prohibited 1 1 0 x f xx /2 f xx /24 8.00 mhz to 8.38 mhz 1 1 1 0 f xx f xx /12 4.00 mhz to 4.19 mhz high-speed mode (smc0 bit = 1) 1 1 1 1 setting prohibited remark x: don?t care (7) iic shift register 0 (iic0) the iic0 register is used for serial transmission/reception (shift operations) t hat is synchronized with the serial clock. the iic0 register can be read or writt en in 8-bit units, but data should not be written to the iic0 register during a data transfer. when the iic0 register is written during wait, the wait is cancelled and dat a transfer is started. after reset, iic0 is cleared to 00h. after reset: 00h r/w address: fffffd80h 7 6 5 4 3 2 1 0 iic0 (8) slave address register 0 (sva0) the sva0 register holds the i 2 c bus?s slave addresses. the sva0 register can be read or written in 8-bit units, but bit 0 should be fixed as 0. after reset, sva0 is cleared to 00h. after reset: 00h r/w address: fffffd83h 7 6 5 4 3 2 1 0 sva0 0 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 559 19.4 functions 19.4.1 pin configuration the serial clock pin (scl0) and serial data bus pin (sda0) are configured as follows. scl0 .............. this pin is used for serial clock input and output. this pin is an n-ch open-drain output for both ma ster and slave devices. input is schmitt input. sda0 .............. this pi n is used for serial data input and output. this pin is an n-ch open-drain output for both ma ster and slave devices. input is schmitt input. since outputs from the serial clock line and the serial dat a bus line are n-ch open-drain outputs, an external pull-up resistor is required. figure 19-3. pin configuration diagram v dd scl0 sda0 scl0 sda0 v dd clock output master device (clock input) data output data input (clock output) clock input data output data input slave device .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 560 19.5 i 2 c bus definitions and control methods the following section describes the i 2 c bus?s serial data communication format and the signals used by the i 2 c bus. the transfer timing for the ?start condition?, ?data?, and ?stop conditi on? output via the i 2 c bus?s serial data bus is shown below. figure 19-4. i 2 c bus?s serial data transfer timing 1 to 7 8 9 1 to 7 8 9 1 to 7 8 9 scl0 sda0 start condition address r/w ack data data stop condition ack ack the master device outputs t he start condition, slave address, and stop condition. the acknowledge signal (ack) can be output by either the master or slave dev ice (normally, it is output by the device that receives 8-bit data). the serial clock (scl0) is continuously output by the master devic e. however, in the sl ave device, the scl0 pin?s low-level period can be extended and a wait can be inserted. 19.5.1 start condition a start condition is met when the scl0 pin is at high level and the sda0 pin changes from high level to low level. the start conditions for the scl0 pin and sda0 pin are si gnals that the master device outputs to the slave device when starting a serial transfer. start conditions can be detected when the devic e is used as a slave. figure 19-5. start conditions h scl0 sda0 a start condition is output when the iicc0.stt0 bit is se t to 1 after a stop condition has been detected (iics0.spd0 bit = 1). when a start condition is detec ted, the iics0.std0 bit is set to 1. .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 561 19.5.2 addresses the 7 bits of data that follow the st art condition are defined as an address. an address is a 7-bit data segment that is output in order to select one of t he slave devices that are connected to the master device via bus lines. t herefore, each slave devic e connected via the bus lines must have a unique address. the slave devices include hardware that detects the start condition and che cks whether or not the 7-bit address data matches the data values stored in the sva0 register. if the address data matches the sva0 register values, the slave device is selected and communicate s with the master device until the mast er device transmits a start condition or stop condition. figure 19-6. address address scl0 1 sda0 intiic0 note 23456789 ad6 ad5 ad4 ad3 ad2 ad1 ad0 r/w note the interrupt request signal (int iic0) is generated if a local addre ss or extension code is received during slave device operation. the slave address and the eighth bit, which specif ies the transfer direction as described in 19.5.3 transfer direction specification below, are together written to the iic0 regi ster and are then output. received addresses are written to the iic0 register. the slave address is assigned to the hi gher 7 bits of the iic0 register. 19.5.3 transfer di rection specification in addition to the 7-bit address data, the master device sends 1 bit that specifies the transfe r direction. when this transfer direction specification bit has a value of 0, it indicates that the mast er device is transmitting data to a slave device. when the transfer direction specif ication bit has a value of 1, it indica tes that the master device is receiving data from a slave device. figure 19-7. transfer direction specification scl0 1 sda0 intiic0 23456789 ad6 ad5 ad4 ad3 ad2 ad1 ad0 r/w transfer direction specification note note the interrupt request signal (int iic0) is generated if a local addre ss or extension code is received during slave device operation. .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 562 19.5.4 acknowledge signal (ack) the acknowledge signal (ack) is used by the transmitting and re ceiving devices to confirm serial data reception. the receiving device returns one ack signal for each 8 bits of data it receives. t he transmitting device normally receives an ack signal after transmitting 8 bits of data. ho wever, when the master device is the receiving device, it does not output an ack signal after receiving the final data to be transmitted. the trans mitting device detects whether or not an ack signal is returned after it transmits 8 bits of data. when an ack signal is returned, the reception is judged as normal and processing continues. if the slave dev ice does not return an ack signal, the master device outputs either a stop condition or a rest art condition and then stops the current tr ansmission. failure to return an ack signal may be caused by the following two factors. <1> reception was not performed normally. <2> the final data was received. when the receiving device sets the sda0 line to low leve l during the ninth clock, t he ack signal becomes active (normal receive response). when the iicc0.acke0 bit is set to 1, automatic ack signal generation is enabled. transmission of the eighth bit following the 7 address data bits causes the iics0.trc0 bit to be set. when this trc0 bit?s value is 0, it indicates receive mode. therefore, the acke0 bit should be set to 1. when the slave device is receiving (when trc0 bit = 0), if the slave device does not need to receive any more data after receiving several bytes, clearing the acke0 bit to 0 will prevent the mast er device from starting transmission of the subsequent data. similarly, when the master device is receiving (w hen trc0 bit = 0) and the subsequent data is not needed and when either a restart condition or a st op condition should therefore be output, cl earing the acke0 bit to 0 will prevent the ack signal from being returned. this prevents the msb data from being output via the sda0 line (i.e., stops transmission) during transmissi on from the slave device. figure 19-8. acknowledge signal (ack) scl0 1 sda0 23456789 ad6 ad5 ad4 ad3 ad2 ad1 ad0 r/w ack when the local address is received, an ack signal is aut omatically output in synch ronization with the falling edge of the scl0 pin?s eighth clock regardless of the acke0 bit va lue. no ack signal is output if the received address is not a local address. the ack signal output method during dat a reception is based on the wait timing setting, as described below. ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 563 19.5.5 stop condition when the scl0 pin is at high level, changing the sda0 pin from low level to high level generates a stop condition. a stop condition is a signal that t he master device outputs to the slav e device when serial transfer has been completed. stop conditions can be detect ed when the device is used as a slave. figure 19-9. stop condition h scl0 sda0 a stop condition is generated when the ii cc0.spt0 bit is set to 1. when the stop condition is detected, the iics0.spd0 bit is set to 1 and the interrupt request signal (i ntiic0) is generated when the iicc0 .spie0 bit is set to 1. .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 564 19.5.6 wait signal (wait) the wait signal (wait) is used to notif y the communication partner that a devic e (master or slave) is preparing to transmit or receive data (i.e., is in a wait state). setting the scl0 pin to low level notifies the communication partner of the wait status. when wait status has been canceled for both the master and slave dev ices, the next data transfer can begin. figure 19-10. wait signal (1/2) (a) when master device has a nine-clock wa it and slave device has an eight-clock wait (master: transmission, slave: reception, and iicc0.acke0 bit = 1) scl0 6 sda0 78 9 123 scl0 iic0 6 h 78 123 d2 d1 d0 ack d7 d6 d5 9 iic0 scl0 acke0 master master returns to high impedance but slave is in wait state (low level). wait after output of ninth clock. iic0 data write (cancel wait) slave wait after output of eighth clock. ffh is written to iic0 register or iicc0.wrel0 bit is set to 1. transfer lines wait signal from slave wait signal from master .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 565 figure 19-10. wait signal (2/2) (b) when master and slave devices both have a nine-clock wait (master: transmission, slave: reception, and acke0 bit = 1) scl0 6 sda0 789 123 scl0 iic0 6 h 78 1 23 d2 d1 d0 ack d7 d6 d5 9 iic0 scl0 acke0 master master and slave both wait after output of ninth clock. iic0 data write (cancel wait) slave ffh is written to iic0 register or wrel0 bit is set to 1. output according to previously set acke0 bit value transfer lines wait signal from master and slave wait signal from slave a wait may be automatically generated depending on the setting for the iicc0.wtim0 bit. normally, when the wrel0 bit is set to 1 or when ffh is wr itten to the iic0 register, t he wait status is canceled and the transmitting side writes data to the iic 0 register to cancel the wait status. the master device can also c ancel the wait status via ei ther of the following methods. by setting the iicc0.stt0 bit to 1 by setting the iicc0.spt0 bit to 1 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 566 19.6 i 2 c interrupt request signals (intiic0) the following shows the value of the iic s0 register at the intiic0 interr upt request signal generation timing and at the intiic0 signal timing. 19.6.1 master device operation (1) start ~ address ~ data ~ data ~ stop (normal transmission/reception) <1> when iicc0.wtim0 bit = 0 iicc0.spt0 bit = 1 ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 567 (2) start ~ address ~ data ~ star t ~ address ~ data ~ stop (restart) <1> when wtim0 bit = 0 iicc0.stt0 bit = 1 spt0 bit = 1 ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 568 (3) start ~ code ~ data ~ data ~ stop (extension code transmission) <1> when wtim0 bit = 0 spt0 bit = 1 ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 569 19.6.2 slave device operation (when receiving slave address da ta (match with address)) (1) start ~ address ~ data ~ data ~ stop <1> when iicc0.wtim0 bit = 0 st ad6 to ad0 rw ak d7 to d0 ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 570 (2) start ~ address ~ data ~ start ~ address ~ data ~ stop <1> when wtim0 bit = 0 (after restart, match with address) st ad6 to ad0 rw ak d7 to d0 ak st ad6 to ad0 rw ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 571 (3) start ~ address ~ data ~ start ~ code ~ data ~ stop <1> when wtim0 bit = 0 (after restart, extension code reception) st ad6 to ad0 rw ak d7 to d0 ak st ad6 to ad0 rw ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 572 (4) start ~ address ~ data ~ start ~ address ~ data ~ stop <1> when wtim0 bit = 0 (after restart, mismatch with address (= not extension code)) st ad6 to ad0 rw ak d7 to d0 ak st ad6 to ad0 rw ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 573 19.6.3 slave device operation (w hen receiving extension code) (1) start ~ code ~ data ~ data ~ stop <1> when iicc0.wtim0 bit = 0 st ad6 to ad0 rw ak d7 to d0 ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 574 (2) start ~ code ~ data ~ st art ~ address ~ data ~ stop <1> when wtim0 bit = 0 (after restart, match with address) st ad6 to ad0 rw ak d7 to d0 ak st ad6 to ad0 rw ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 575 (3) start ~ code ~ data ~ st art ~ code ~ data ~ stop <1> when wtim0 bit = 0 (after restart, extension code reception) st ad6 to ad0 rw ak d7 to d0 ak st ad6 to ad0 rw ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 576 (4) start ~ code ~ data ~ st art ~ address ~ data ~ stop <1> when wtim0 bit = 0 (after restart, mismatch with address (= not extension code)) st ad6 to ad0 rw ak d7 to d0 ak st ad6 to ad0 rw ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 577 19.6.4 operation without communication (1) start ~ code ~ data ~ data ~ stop st ad6 to ad0 rw ak d7 to d0 ak d7 to d0 ak sp ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 578 (2) when arbitration loss occurs dur ing transmission of extension code <1> when wtim0 bit = 0 st ad6 to ad0 rw ak d7 to d0 ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 579 19.6.6 operation when arbitr ation loss occurs (no communicat ion after arbitration loss) (1) when arbitration loss occurs dur ing transmission of slave address data st ad6 to ad0 rw ak d7 to d0 ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 580 ( 3) when arbitration loss occurs during data transfer <1> when iicc0.wtim0 bit = 0 st ad6 to ad0 rw ak d7 to d0 ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 581 (4) when loss occurs due to rest art condition during data transfer <1> not extension code (example: mismatches with address) st ad6 to ad0 rw ak d7 to dn st ad6 to ad0 rw ak d7 to d0 ak sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 582 (5) when loss occurs due to stop condition during data transfer st ad6 to ad0 rw ak d7 to dn sp ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 583 (7) when arbitration loss occurs due to a stop conditi on when attempting to gene rate a restart condition when wtim0 bit = 1 stt0 bit = 1 ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 584 19.7 interrupt request signal (intiic0) generation timing and wait control the setting of the iicc0.wtim0 bit determines the ti ming by which the intiic 0 signal is generated and the corresponding wait control, as shown below. table 19-3. intiic0 signal gene ration timing and wait control during slave device operation du ring master device operation wtim0 bit address data reception data transmission address data reception data transmission 0 9 notes 1, 2 8 note 2 8 note 2 9 8 8 1 9 notes 1, 2 9 note 2 9 note 2 9 9 9 notes 1. the slave device?s intiic0 signal and wait period o ccurs at the falling edge of the ninth clock only when there is a match with the addre ss set to the sva0 register. at this point, an ack signal is output regardless of the value set to the iicc0.acke0 bit. for a slave device that has received an extensi on code, the intiic0 signal occurs at the falling edge of the eighth clock. when the address does not match after restart, the intiic0 signal is generated at the falling edge of the ninth clock, but no wait occurs. 2. if the received address does not ma tch the contents of the sva0 regi ster and extensi on codes have not been received, neither the intiic0 signal nor a wait occurs. remark the numbers in the table indicate the number of the serial clock?s cl ock signals. interrupt requests and wait control are both synchronized with the falling edge of these clock signals. (1) during address transmission/reception ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 585 (4) wait cancellation method the four wait cancellation methods are as follows. ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 586 19.10 extension code (1) when the higher 4 bits of the receive address are eit her 0000 or 1111, the extension code flag (exc0) is set for extension code reception and an interrupt request signal (intiic0) is issued at the falling edge of the eighth clock. the local address stored in the sva0 register is not affected. (2) if 11110xx0 is set to the sva0 register by a 10-bit address transfer and 11110xx0 is transferred from the master device, the results are as follows. note that the int iic0 signal occurs at the fa lling edge of the eighth clock. ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 587 19.11 arbitration when several master devices simultaneous ly output a start condition (when the iicc0.stt0 bit is set to 1 before the iics0.std0 bit is set to 1), communication among the ma ster devices is performed as the number of clocks is adjusted until the data differs. this ki nd of operation is called arbitration. when one of the master devices loses in arbitration, an arbitration loss flag (iic s0.ald0 bit) is set (1) via the timing by which the arbitration loss occurr ed, and the scl0 and sda0 lines are both set for high impedance, which releases the bus. the arbitration loss is detec ted based on the timing of the next interrupt request signal (i ntiic0) (the eighth or ninth clock, when a stop condition is detec ted, etc.) and the ald0 bit = 1 se tting that has been made by software. for details of interrupt request timing, refer to 19.6 i 2 c interrupt request signals (intiic0) . figure 19-11. arbitration timing example master 1 master 2 transfer lines scl0 sda0 scl0 sda0 scl0 sda0 master 1 loses arbitration hi-z hi-z .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 588 table 19-5. status during arbitration and interrupt request generation timing status during arbitration inte rrupt request generation timing during address transmission read/write data after address transmission during extension code transmission read/write data after extension code transmission during data transmission during ack signal transfer period after data reception when restart condition is det ected during data transfer at falling edge of eighth or ninth clock following byte transfer note 1 when stop condition is detected duri ng data transfer when stop condition is output (when iicc0.spie0 bit = 1) note 2 when the sda0 pin is at low level while attempting to output a restart condition at falling edge of eighth or ninth clock following byte transfer note 1 when stop condition is detected while attempting to output a restart condition when stop condition is output (when spie0 bit = 1) note 2 when the sda0 pin is at low level while attempting to output a stop condition when the scl0 pin is at low level while attempting to output a restart condition at falling edge of eighth or ninth clock following byte transfer note 1 notes 1. when the iicc0.wtim0 bit = 1, an intiic0 signal o ccurs at the falling edge of the ninth clock. when the wtim0 bit = 0 and the extension code?s slave address is received, an intiic0 signal occurs at the falling edge of the eighth clock. 2. when there is a possibility that arbitration will occur, set the spie0 bit = 1 for master device operation. 19.12 wakeup function the i 2 c bus slave function is a function t hat generates an interrupt request signal (intiic0) when a local address or extension code has been received. this function makes processing more effi cient by preventing the unnecessary intiic0 signal from occurring when addresses do not match. when a start condition is detected, wa keup standby mode is set. this wak eup standby mode is in effect while addresses are transmitted due to the possi bility that an arbitration loss may change the master device (which has output a start condition) to a slave device. however, when a stop condition is detect ed, the iicc0.spie0 bit is set regardl ess of the wakeup function, and this determines whether the intiic0 signal is enabled or disabled. .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 589 19.13 communication reservation 19.13.1 when communication reservation func tion is enabled (iicf0.iicrsv0 bit = 0) to start master device communications when not current ly using a bus, a communication reservation can be made to enable transmission of a start condition when the bus is re leased. there are two modes under which the bus is not used. ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 590 the communication reservation timing is shown below. figure 19-12. communication reservation timing 2 13456 2 1 3456 789 scl0 sda0 program processing hardware processing write to iic0 set spd0 and intiic0 stt0 =1 communication reservation set std0 output by master with bus access iic0: iic shift register 0 stt0: bit 1 of iic control register 0 (iicc0) std0: bit 1 of iic status register 0 (iics0) spd0: bit 0 of iic status register 0 (iics0) communication reservations are accepted via the following timing. after the iics0.std0 bit is set to 1, a communication reservation can be made by setting the iicc0 .stt0 bit to 1 before a stop condition is detected. figure 19-13. timing for accep ting communication reservations scl0 sda0 std0 spd0 standby mode .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 591 the communication reservation flowchart is illustrated below. figure 19-14. communication reservation flowchart di stt0 = 1 define communication reservation wait cancel communication reservation no yes iic0 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 592 19.13.2 when communication reservation func tion is disabled (iicf0.iicrsv0 bit = 1) when the iicc0.stt0 bit is set when the bus is not us ed in a communication during bus communication, this request is rejected and a start condition is not generated. the followi ng two statuses are incl uded in the status where bus is not used. ? ? .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 593 19.14 cautions (1) when iicf0.stcen0 bit = 0 immediately after i 2 c0 operation is enabled, the bus communica tion status (iicf0.iicbsy0 bit = 1) is recognized regardless of the actual bus status. to execute master comm unication in the status where a stop condition has not been detect ed, generate a stop condition and then releas e the bus before st arting the master communication. use the following sequence for generating a stop condition. <1> set the iiccl0 register. <2> set the iicc0.iice0 bit. <3> set the iicc0.spt0 bit. (2) when iicf0.stcen0 bit = 1 immediately after i 2 c0 operation is enabled, the bus released status (iicbsy0 bit = 0) is recognized regardless of the actual bus status. to issue t he first start condition (iicc0.stt0 bit = 1), it is necessary to confirm that the bus has been released, so as to not disturb other communications. 19.15 communication operations 19.15.1 master operation 1 the following shows the flowchart for master communi cation when the communication reservation function is enabled (iicf0.iicrsv0 bit = 0) and the master operation is started after a stop condition is detected (iicf0.stcen0 bit = 0). .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 594 figure 19-15. master operation flowchart (1) iicc0 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 595 19.15.2 master operation 2 the following shows the flowchart for master communi cation when the communication reservation function is disabled (iicrsv0 bit = 1) and the ma ster operation is start ed without detecting a stop condition (stcen0 bit = 1). figure 19-16. master operation flowchart (2) no iiccl0 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 596 19.15.3 slave operation the following shows the processing procedure of the slave operation. basically, the operation of the slave device is event-driven. therefore, processing by an intiic0 interrupt (processing requiring a significant change of the operat ion status, such as st op condition detection during communication) is necessary. the following description assumes that data communication does not support extension codes. also, it is assumed that the intiic0 interrupt servicing performs only status change processing and t hat the actual data communication is performed during the main processing. figure 19-17. software out line during slave operation i 2 c intiic0 setting, etc. setting, etc. flag data main processing interrupt servicing therefore, the following three flags are prepared so that the data transfer processing can be performed by transmitting these flags to the main pr ocessing instead of the intiic0 signal. (1) communication mode flag this flag indicates the following communication statuses. clear mode: data communication not in progress communication mode: data communication in progre ss (valid address detection stop condition detection, ack signal from master not detected, address mismatch) (2) ready flag this flag indicates that data communication is enabled. th is is the same status as an intiic0 interrupt during normal data transfer. this flag is set in the interrupt servicing block and cleared in the main processing block. the ready flag for the first data for transmission is not set in the interrupt servicing bl ock, so the first data is transmitted without clearance proce ssing (the address match is regarded as a request for the next data). (3) communication direction flag this flag indicates the direction of communication and is the same as the value of the iics0.trc0 bit. the following shows the operati on of the main processing bl ock during slave operation. start i 2 c0 and wait for the communication enabled status. when communication is enabled, perform transfer using the communication mode flag and ready flag (the processing of the stop condition and start condition is performed by interrupts, conditions are confirmed by flags). for transmission, repeat the transmissi on operation until the master device stops returning ack signal. when the master device stops returning ac k signal, transfer is complete. .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 597 for reception, receive the required num ber of data and do not return ack signal for the next data immediately after transfer is complete. after that, the master device generates the stop condition or restart c ondition. this causes exit from communications. figure 19-18. slave operation flowchart (1) yes yes yes yes yes yes yes yes no no no no no no no no start communication mode? communication mode? communication mode? ready? ready? read data clear ready flag clear ready flag communication direction flag = 1? wtim0 = 1 wrel0 = 1 acke0 = 0 wrel0 = 1 acke0 = wtim0 = 1 ackd0 = 1? wrel0 = 1 clear communication mode flag data processing data processing transfer completed? iic0 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 598 the following shows an example of the pr ocessing of the slave device by an int iic0 interrupt (it is assumed that no extension codes are used here). during an intiic0 interr upt, the status is confirm ed and the following steps are executed. <1> when a stop condition is detect ed, communication is terminated. <2> when a start condition is detected, the address is confirmed. if the address does not match, communication is terminated. if the address matches, the communica tion mode is set and wait is released, and operation returns from the interrupt (the ready flag is cleared). <3> for data transmission/reception, w hen the ready flag is set, operation retu rns from the interrupt while the i 2 c0 bus remains in the wait status. remark <1> to <3> in the above correspond to <1> to <3> in figure 19-19 slave operation flowchart (2) . figure 19-19. slave operation flowchart (2) yes yes yes no no no intiic0 generated set ready flag interrupt servicing completed interrupt servicing completed interrupt servicing completed termination processing spd0 = 1? std0 = 1? coi0 = 1? lrel0 = 1 clear communication mode communication direction flag .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 599 19.16 timing of data communication when using i 2 c bus mode, the master device out puts an address via the serial bus to select one of several slave devices as its communication partner. after outputting the slave address, the ma ster device transmits the iics0.trc0 bit that specifies the data transfer direction and then starts serial co mmunication with the slave device. the iic0 register?s shift operation is synchronized with the falling edge of the se rial clock (scl0 pin). the transmit data is transferred to the so latch and is output (msb first) via the sda0 pin. data input via the sda0 pin is captured by the iic0 register at the ri sing edge of the scl0 pin. the data communication timing is shown below. .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 600 figure 19-20. example of m aster to slave communication (when 9-clock wait is selected for both master and slave) (1/3) (a) start condition ~ address iic0 ackd0 std0 spd0 wtim0 h h l l l l h h h l l acke0 msts0 stt0 spt0 wrel0 intiic0 trc0 iic0 ackd0 std0 spd0 wtim0 acke0 msts0 stt0 spt0 wrel0 intiic0 trc0 scl0 sda0 processing by master device transfer lines processing by slave device 123456789 4 3 2 1 ad6 ad5 ad4 ad3 ad2 ad1 ad0 w ack d4 d5 d6 d7 iic0 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 601 figure 19-20. example of m aster to slave communication (when 9-clock wait is selected for both master and slave) (2/3) (b) data iic0 ackd0 std0 spd0 wtim0 h h l l l l l l h h h h l l l l l acke0 msts0 stt0 spt0 wrel0 intiic0 trc0 iic0 ackd0 std0 spd0 wtim0 acke0 msts0 stt0 spt0 wrel0 intiic0 trc0 scl0 sda0 processing by master device transfer lines processing by slave device 1 9 8 23456789 3 2 1 d7 d0 d6 d5 d4 d3 d2 d1 d0 d5 d6 d7 iic0 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 602 figure 19-20. example of m aster to slave communication (when 9-clock wait is selected for both master and slave) (3/3) (c) stop condition iic0 ackd0 std0 spd0 wtim0 h h l l l l h h h l acke0 msts0 stt0 spt0 wrel0 intiic0 trc0 iic0 ackd0 std0 spd0 wtim0 acke0 msts0 stt0 spt0 wrel0 intiic0 trc0 scl0 sda0 processing by master device transfer lines processing by slave device 123456789 2 1 d7 d6 d5 d4 d3 d2 d1 d0 ad5 ad6 iic0 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 603 figure 19-21. example of sl ave to master communication (when 9-clock wait is selected for both master and slave) (1/3) (a) start condition ~ address iic0 ackd0 std0 spd0 wtim0 h h l l h h l acke0 msts0 stt0 l l spt0 wrel0 intiic0 trc0 iic0 ackd0 std0 spd0 wtim0 acke0 msts0 stt0 spt0 wrel0 intiic0 trc0 scl0 sda0 processing by master device transfer lines processing by slave device 123456789 4 56 3 2 1 ad6 ad5 ad4 ad3 ad2 ad1 ad0 r d4 d3 d2 d5 d6 d7 iic0 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 604 figure 19-21. example of sl ave to master communication (when 9-clock wait is selected for both master and slave) (2/3) (b) data iic0 ackd0 std0 spd0 wtim0 h h h l l l l l l h h h l l l l l acke0 msts0 stt0 spt0 wrel0 intiic0 trc0 iic0 ackd0 std0 spd0 wtim0 acke0 msts0 stt0 spt0 wrel0 intiic0 trc0 scl0 sda0 processing by master device transfer lines processing by slave device 1 89 23456789 3 2 1 d7 d0 ack d6 d5 d4 d3 d2 d1 d0 ack d5 d6 d7 note note receive transmit iic0 .com .com .com .com 4 .com u datasheet
chapter 19 i 2 c bus preliminary user?s manual u16894ej1v0ud 605 figure 19-21. example of sl ave to master communication (when 9-clock wait is selected for both master and slave) (3/3) (c) stop condition iic0 ackd0 std0 spd0 wtim0 h h l l l h acke0 msts0 stt0 spt0 wrel0 intiic0 trc0 iic0 ackd0 std0 spd0 wtim0 acke0 msts0 stt0 spt0 wrel0 intiic0 trc0 scl0 sda0 processing by master device transfer lines processing by slave device 123456789 2 1 d7 d6 d5 d4 d3 d2 d1 d0 ad5 ad6 iic0 .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 606 chapter 20 dma function (dma controller) the v850es/kg1+ includes a direct memory access (dma) controller (dmac) that ex ecutes and controls dma transfer. the dmac controls data transfer between memory and i/o, between memo ries, or between i/os based on dma requests issued by the on-chip peripheral i/o (serial in terface, timer/counter, and a/d converter), interrupts from external input pins, or software triggers (memory refers to internal ram or external memory). 20.1 features ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 607 20.2 configuration cpu internal ram on-chip peripheral i/o on-chip peripheral i/o bus internal bus data control address control count control channel control dmac v850es/kg1+ bus interface external bus external ram external rom external i/o dma source address register n (dsanh/dsanl) dma transfer count register n (dbcn) dma channel control register n (dchcn) dma destination address register n (ddanh/ddanl) dma addressing control register n (dadcn) dma trigger factor register n (dtfrn) remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 608 20.3 registers (1) dma source address registers 0 to 3 (dsa0 to dsa3) the dsa0 to dsa3 registers set the dma source addresse s (26 bits each) for dma channel n (n = 0 to 3). these registers are divided into two 16-bit registers, dsanh and dsanl. these registers can be read or written in 16-bit units. external memory or on-chip peripheral i/o internal ram ir 0 1 specification of dma transfer source set the address (a25 to a16) of the dma transfer source (default value is undefined). during dma transfer, the next dma transfer source address is held. when dma transfer is completed, the dma address set first is held. sa25 to sa16 set the address (a15 to a0) of the dma transfer source (default value is undefined). during dma transfer, the next dma transfer source address is held. when dma transfer is completed, the dma address set first is held. sa15 to sa0 after reset: undefined r/w address: dsa0h fffff082h, dsa1h fffff08ah, dsa2h fffff092h, dsa3h fffff09ah, dsa0l fffff080h, dsa1l fffff088h, dsa2l fffff090h, dsa3l fffff098h dsanl (n = 0 to 3) sa15 sa14 sa13 sa12 sa6 sa5 sa4 sa3 sa2 sa1 sa0 sa7 sa8 sa9 sa10 sa11 dsanh (n = 0 to 3) ir 000 sa22 sa21 sa20 sa19 sa18 sa17 sa16 sa23 sa24 sa25 0 0 cautions 1. be sure to clear bits 14 to 10 of the dsanh register to 0. 2. set the dsanh and dsanl registers at the following timing while dma is not in progress. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 609 (2) dma destination address regi sters 0 to 3 (dda0 to dda3) the dda0 to dda3 registers set the dma destination addre ss (26 bits each) for dma channel n (n = 0 to 3). these registers are divided into two 16-bit registers, ddanh and ddanl. these registers can be read or written in 16-bit units. external memory or on-chip peripheral i/o internal ram ir 0 1 specification of dma transfer destination set an address (a25 to a16) of dma transfer destination (default value is undefined). during dma transfer, the next dma transfer destination address is held. when dma transfer is completed, the dma transfer source address set first is held. da25 to da16 set an address (a15 to a0) of dma transfer destination (default value is undefined). during dma transfer, the next dma transfer destination address is held. when dma transfer is completed, the dma transfer source address set first is held. da15 to da0 after reset: undefined r/w address: dda0h fffff086h, dda1h fffff08eh, dda2h fffff096h, dda3h fffff09eh, dda0l fffff084h, dda1l fffff08ch, dda2l fffff094h, dda3l fffff09ch ddanl (n = 0 to 3) da15 da14 da13 da12 da6 da5 da4 da3 da2 da1 da0 da7 da8 da9 da10 da11 ddanh (n = 0 to 3) ir 000 da22 da21 da20 da19 da18 da17 da16 da23 da24 da25 0 0 cautions 1. be sure to clear bits 14 to 10 of the ddanh register to 0. 2. set the ddanh and ddanl registers at the following timing while dma is not in progress. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 610 (3) dma byte count registers 0 to 3 (dbc0 to dbc3) the dbc0 to dbc3 registers are 16-bit registers that set the byte transfer c ount for dma channel n (n = 0 to 3). these registers hold the remaining tr ansfer count during dma transfer. these registers are decremented by 1 per one transfer regardless of the trans fer data unit (8/16 bits), and the transfer is terminated if a borrow occurs. these registers can be read or written in 16-bit units. byte transfer count 1 or remaining byte transfer count byte transfer count 2 or remaining byte transfer count : byte transfer count 65,536 (2 16 ) or remaining byte transfer count bc15 to bc0 0000h 0001h : ffffh byte transfer count setting or remaining byte transfer count during dma transfer after reset: undefined r/w address: dbc0 fffff0c0h, dbc1 fffff0c2h, dbc2 fffff0c4h, dbc3 fffff0c6h dbcn (n = 0 to 3) 15 bc15 14 bc14 13 bc13 12 bc12 11 bc11 10 bc10 9 bc9 8 bc8 7 bc7 6 bc6 5 bc5 4 bc4 3 bc3 2 bc2 1 bc1 0 bc0 the number of transfer data set first is held when dma transfer is complete. caution set the dbcn register at the follow ing timing while dma is not in progress. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 611 (4) dma addressing control registers 0 to 3 (dadc0 to dadc3) the dadc0 to dadc3 registers are 16-bit registers that control the dma transfer mode for dma channel n (n = 0 to 3). these registers can be read or written in 16-bit units. reset input clears these registers to 0000h. dadcn (n = 0 to 3) 8 bits 16 bits ds0 0 1 setting of transfer data size increment decrement fixed setting prohibited sad1 0 0 1 1 sad0 0 1 0 1 setting of count direction of the transfer source address increment decrement fixed setting prohibited dad1 0 0 1 1 dad0 0 1 0 1 setting of count direction of the destination address after reset: 0000h r/w address: dadc0 fffff0d0h, dadc1 fffff0d2h, dadc2 fffff0d4h, dadc3 fffff0d6h sad1 sad0 dad1 dad0 0 0 0 0 0ds000 00 0 0 8 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7 cautions 1. be sure to clear bits 15, 13 to 8, and 3 to 0 of the dadcn register to 0. 2. set the dadcn register at the foll owing timing while dma is not in progress. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 612 (5) dma channel control registers 0 to 3 (dchc0 to dchc3) the dchc0 to dchc3 registers are 8-bit registers t hat control the dma transfer operating mode for dma channel n. these registers can be read or written in 8-bit or 1-bit units (however, bit 7 is read-only and bits 1 and 2 are write-only. if bit 1 or 2 is read, the read value is always 0). reset input clears these registers to 00h. dchcn (n = 0 to 3) dma transfer had not completed. dma transfer had completed. it is set to 1 on the last dma transfer and cleared to 0 when it is read. tcn note 1 0 1 status flag indicates whether dma transfer through dma channel n has completed or not dma transfer disabled dma transfer enabled dma transfer is enabled when the enn bit is set to 1. when dma transfer is completed (when a terminal count is generated), this bit is automatically cleared to 0. to abort dma transfer, clear the enn bit to 0 by software. to resume, set the enn bit to 1 again. when aborting or resuming dma transfer, however, be sure to observe the procedure described in 20.13 cautions . enn 0 1 setting of whether dma transfer through dma channel n is to be enabled or disabled this is a software startup trigger of dma transfer. if this bit is set to 1 in the dma transfer enable state (tcn bit = 0, enn bit = 1), dma transfer is started. stgn note 2 after reset: 00h r/w address: dchc0 fffff0e0h, dchc1 fffff0e2h, dchc2 fffff0e4h, dchc3 fffff0e6h tcn note 1 0 0 0 0 initn note 2 stgn note 2 enn <0> <1> <2> 3 4 5 6 <7> initn note 2 if the initn bit is set to 1 with dma transfer disabled (enn bit = 0), the dma transfer status can be initialized. when re-setting the dma transfer status (re-setting the ddanh, ddanl, dsanh, dsanl, dbcn, and dadcn registers) before dma transfer is completed (before the tcn bit is set to 1), be sure to initialize the dma channel. when initializing the dma controller, however, be sure to observe the procedure described in 20.13 cautions . notes 1. the tcn bit is read-only. 2. the initn and stgn bits are write-only. cautions 1. be sure to clear bits 6 to 3 of the dchcn register to 0. 2. when dma transfer is completed (when a terminal count is generated), the enn bit is cleared to 0 and then the tcn bit is set to 1. if the dchcn regist er is read while its bits are being updated, a value indicating ?transfer not co mpleted and transfer is disabled? (tcn bit = 0 and enn bit = 0) may be read. .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 613 (6) dma trigger factor registers 0 to 3 (dtfr0 to dtfr3) the dtfr0 to dtfr3 registers are 8-bit registers that control the dma transfer start trigger via interrupt request signals from on-chip peripheral i/o. the interrupt request signals set by these re gisters serve as dma transfer start factors. these registers can be read or written in 8-bit units. however, only t he dfn bit can be read or written in 1-bit units. reset input clears these registers to 00h. dtfrn (n = 0 to 3) no dma transfer request dma transfer request dfn note 0 1 dma transfer request flag after reset: 00h r/w address: dtfr0 fffff810h, dtfr1 fffff812h, dtfr2 fffff814h, dtfr3 fffff816h dfn 0 ifcn5 ifcn4 ifcn3 ifcn2 ifcn1 ifcn0 0 1 2 3 4 5 6 <7> note the dfn bit can write 0 only. write 0 to this bit to clear a dma transfer request if an interrupt that is specified as the cause of starting dma trans fer occurs while dma transfer is disabled. cautions 1. set the ifcn5 to if cn0 bits at the following timing while dma is not in progress. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 614 table 20-1. dma start factors ifcn5 ifcn4 ifcn3 ifcn2 ifcn1 ifcn0 interrupt source 0 0 0 0 0 0 dma request by interrupt disabled 0 0 0 0 0 1 intwdtm1 0 0 0 0 1 0 intp0 0 0 0 0 1 1 intp1 0 0 0 1 0 0 intp2 0 0 0 1 0 1 intp3 0 0 0 1 1 0 intp4 0 0 0 1 1 1 intp5 0 0 1 0 0 0 intp6 0 0 1 0 0 1 inttm000 0 0 1 0 1 0 inttm001 0 0 1 0 1 1 inttm010 0 0 1 1 0 0 inttm011 0 0 1 1 0 1 inttm50 0 0 1 1 1 0 inttm51 0 0 1 1 1 1 intcsi00 0 1 0 0 0 0 intcsi01 0 1 0 0 0 1 intsre0 0 1 0 0 1 0 intsr0 0 1 0 0 1 1 intst0 0 1 0 1 0 0 intsre1 0 1 0 1 0 1 intsr1 0 1 0 1 1 0 intst1 0 1 0 1 1 1 inttmh0 0 1 1 0 0 0 inttmh1 0 1 1 0 0 1 intcsia0 0 1 1 0 1 0 intiic0 note 0 1 1 0 1 1 intad 0 1 1 1 0 0 intkr 0 1 1 1 0 1 intwti 0 1 1 1 1 0 intwt 0 1 1 1 1 1 intbrg 1 0 0 0 0 0 inttm020 1 0 0 0 0 1 inttm021 1 0 0 0 1 0 inttm030 1 0 0 0 1 1 inttm031 1 0 0 1 0 0 intcsia1 1 0 1 0 1 0 intsre2 1 0 1 0 1 1 intsr2 1 0 1 1 0 0 intst2 1 0 1 1 1 0 intlvi 1 0 1 1 1 1 intp7 1 1 0 0 0 0 inttp0ov 1 1 0 0 0 1 inttp0cc0 1 1 0 0 1 0 inttp0cc1 other than above setting prohibited note only in the .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 615 20.4 transfer targets table 20-2 shows the relationship between the transfer targets ( .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 616 20.6 transfer types as a transfer type, the 2-cycle transfer is supported. in two-cycle transfer, data transfer is performed in two cycles, a read cycle and a write cycle. in the read cycle, the transfer source address is output and reading is performed from the source to the dmac. in the write cycle, the transfer destination addr ess is output and writing is performed from the dmac to the destination. an idle cycle of one clock is always inserted between a read cycle and a write cycle. if the data bus width differs between the transfer source and destination for dma transfe r of two cycles, the operation is performed as follows. <16-bit data transfer> <1> transfer from 32-bit bus ? ? ? .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 617 20.8 time related to dma transfer the time required to respond to a dma request, and the minimum number of clocks required for dma transfer are shown below. single transfer: dma response time (<1>) + transfer source memory access (<2>) + 1 note 1 + transfer destination memory access (<2>) dma cycle minimum number of execution clocks <1> dma request response time 4 clocks (min.) + noise elimination time note 2 external memory access depends on connected memory. internal ram access 2 clocks note 3 <2> memory access peripheral i/o register access 3 clocks + number of wait cycles specified by vswc register note 4 notes 1. one clock is always inserted between a read cycle and a write cycle in dma transfer. 2. if an external interrupt (intpn) is specified as the tr igger to start dma transfer, noise elimination time is added (n = 0 to 7). 3. two clocks are required for a dma cycle. 4. more wait cycles may be necessary for accessing a special register described in 3.4.8 (2) . .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 618 20.9 dma transfer start factors there are two types of dma transfe r start factors, as shown below. (1) request by software if the dchcn.stgn bit is set to 1 while the dchcn.tcn bit = 0 and dchcn.enn bit = 1 (dma transfer enabled), dma transfer is started. to request the next dma transfer cycle immediately after that, confirm, by using th e dbcn register, that the preceding dma transfer cycle has been completed, and set the stgn bit to 1 again (n = 0 to 3). tcn bit = 0, enn bit = 1 .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 619 20.10 dma abort factors dma transfer is aborted if a bus hold occurs. the same applies if transfer is ex ecuted between the intern al memory/on-chip peripheral i/o and internal memory/on-chip peripheral i/o. when the bus hold is cleared, dma transfer is resumed. 20.11 end of dma transfer when dma transfer has been completed the number of ti mes set to the dbcn register and when the dchcn.enn bit is cleared to 0 and tcn bit is set to 1, a dma transfer end interrupt request signal (intdman) is generated for the interrupt controller (intc) (n = 0 to 3). the v850es/kg1+ does not output a terminal count signal to an external device. therefore, confirm completion of dma transfer by using the dma transfer end interrupt or polling the tcn bit. 20.12 operation timing the operation timing of dma is as follows. .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 620 figure 20-1. priority of dma (1) read write idle write read dma0 transfer request system clock dma1 transfer request dma2 transfer request dma transfer mode of processing df0 bit df1 bit df2 bit idle dma2 processing cpu processing dma1 processing cpu processing cpu processing dma0 processing read preparation for transfer end processing preparation for transfer preparation for transfer end processing remarks 1. transfer in the order of dma0 .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 621 figure 20-2. priority of dma (2) preparation for transfer read write idle dma0 transfer request system clock dma1 transfer request dma2 transfer request dma transfer mode of processing df0 bit df1 bit df2 bit cpu processing dma0 processing cpu processing dma1 processing cpu processing dma0 processing read write idle end processing read preparation for transfer preparation for transfer end processing remarks 1. transfer in the order of dma0 .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 622 figure 20-3. period in which dma transfer request is ignored (1) preparation for transfer read cycle write cycle idle end processing dma transfer mode of processing dfn bit system clock transfer request generated after this can be acknowledged dma0 processing cpu processing cpu processing note 2 note 2 dman transfer request note 1 note 2 notes 1. interrupt from on-chip peripheral i/o, or software trigger (dchcn.stgn bit) 2. new dma request of the same channel is i gnored between when the transfer request is generated and the end processing is complete. remark in the case of transfer between external memory spaces (multiplex bus, no wait) .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 623 figure 20-4. period in which dma transfer request is ignored (2) read write idle write read dma0 transfer request system clock dma1 transfer request dma2 transfer request dma transfer mode of processing df0 bit df1 bit df2 bit idle <1> <2> <3> <4> cpu processing dma0 processing cpu processing dma1 processing cpu processing read preparation for transfer dma0 processing end processing preparation for transfer preparation for transfer end processing <1> dma0 transfer request <2> new dma0 transfer request is generated during dma0 transfer. .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 624 20.13 cautions (1) caution for vswc register when using the dmac, be sure to set an appropriate val ue, in accordance with the operating frequency, to the vswc register. when the default value (77h) of the vsw c register is used, or if an inappr opriate value is set to the vswc register, the operation is not correctly perform ed (for details of the vswc register, refer to 3.4.8 (1) (a) system wait control register (vswc) ). (2) caution for dma transfer executed on internal ram when executing the following instructions located in th e internal ram, do not ex ecute a dma transfer that transfers data to/from the internal ram (transfer source/destination), because the cpu may not operate correctly afterward. ? ? .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 625 (4) dma transfer initialization pr ocedure (setting dchcn.initn bit to 1) even if the initn bit is set to 1 when the channel exec uting dma transfer is to be initialized, the channel may not be initialized. to accurately initialize the c hannel, execute either of the following two procedures. (a) temporarily stop transf er of all dma channels initialize the channel executing dma transfer using the procedure in <1> to <7> below. note, however, that tcn bit is cleared to 0 when st ep <5> is executed. make sure that the other processing programs do not expect that the tcn bit is 1. <1> disable interrupts (di). <2> read the dchcn.enn bit of dma channels other t han the one to be forcibly terminated, and transfer the value to a general-purpose register. <3> clear the enn bit of the dma channels used (including the channel to be forcibly terminated) to 0. to clear the enn bit of the last dma channel, execute t he clear instruction twice. if the target of dma transfer (transfer source/destination) is the inte rnal ram, execute the instruction three times. example: execute instructions in the fo llowing order if channels 0, 1, and 2 are used (if the target of transfer is not the internal ram). ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 626 (b) repeatedly execute setting initn bit until transfer is forcibly terminated correctly <1> suppress a request from the dma request source of the channel to be forcibly terminated (stop operation of the on-ch ip peripheral i/o). <2> check that the dma transfer requ est of the channel to be forcibly terminated is not held pending, by using the dtfrn.dfn bit. if a dma transfer reques t is held pending, wait until execution of the pending dma transfer request is completed. <3> when it has been confirmed that t he dma request of the channel to be forcibly terminated is not held pending, clear the enn bit to 0. <4> again, clear the enn bit of the channel to be forcibly terminated to 0. if the target of transfer for the channel to be forc ibly terminated (transfer source/destination) is the internal ram, execute th is operation once more. <5> copy the initial number of trans fers of the channel to be forcibly terminated to a general-purpose register. <6> set the initn bit of the channel to be forcibly terminated to 1. <7> read the value of the dbcn regist er of the channel to be forcibly terminated, and compare it with the value copied in <5>. if the two values do not match, repeat operations <6> and <7>. remarks 1. when the value of the dbcn regist er is read in <7>, the initial number of transfers is read if forced termination has been correctly completed. if not, the remaining number of transfers is read. 2. note that method (b) may take a long time if the application frequently uses dma transfer for a channel other than the dma channel to be forcibly terminated. (5) procedure of temporarily stoppi ng dma transfer (clearing enn bit) stop and resume the dma transfer under ex ecution using the following procedure. <1> suppress a transfer request from the dma request s ource (stop the operation of the on-chip peripheral i/o). <2> check the dma transfer request is not held pending , by using the dfn bit (check if the dfn bit = 0). if a request is held pending, wait until execution of the pending dma transfer request is completed. <3> if it has been confirmed that no dma transfer requ est is held pending, clear the enn bit to 0 (this operation stops dma transfer). <4> set the enn bit to 1 to resume dma transfer. <5> resume the operation of the dma request source that has been stopped (start the operation of the on- chip peripheral i/o). (6) memory boundary the operation is not guaranteed if th e address of the transfer source or destination exceeds the area of the dma target (external memory, internal ram, or on-chip peripheral i/o) during dma transfer. (7) transferring misaligned data dma transfer of misaligned data with a 16-bit bus width is not supported. if an odd address is specified as the trans fer source or destination, the leas t significant bit of the address is forcibly assumed to be 0. .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 627 (8) bus arbitration for cpu because the dma controller has a higher priority bus ma stership than the cpu, a cpu access that takes place during dma transfer is held pending unt il the dma transfer cycle is complete d and the bus is released to the cpu. however, the cpu can access the external memory, on- chip peripheral i/o, and inte rnal ram to/from which dma transfer is not being executed. ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 20 dma function (dma controller) preliminary user?s manual u16894ej1v0ud 628 (12) read values of dsan and ddan registers values in the middle of updating may be read from t he dsan and ddan registers during dma transfer (n = 0 to 3). for example, if the dsanh regist er and then the dsanl register ar e read when the dma transfer source address (dsan register) is 0000ffffh and the count direction is incremental (dadcn.sad1 and dadcn.sad0 bits = 00), the value of the dsanl regi ster differs as follows, depending on whether dma transfer is executed immediately after the dsanh register is read. (a) if dma transfer does not occu r while dsan register is read <1> read value of dsanh register: dsanh register = 0000h <2> read value of dsanl register: dsanl register = ffffh (b) if dma transfer occurs while dsan register is read <1> read value of dsanh register: dsanh register = 0000h <2> occurrence of dma transfer <3> incrementing dsan register: dsan register = 00100000h <4> read value of dsanl register: dsanl register = 0000h .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 629 chapter 21 interrupt/except ion processing function 21.1 overview the v850es/kg1+ is provided with a de dicated interrupt controller (intc) for interrupt servicing and realize an interrupt function that can service interrupt r equests from a total of 50 or 51 sources. an interrupt is an event that occurs independently of program execution, and an ex ception is an event whose occurrence is dependent on program execution. the v850es/kg1+ can process interrupt requests from the on-chip peripheral hardware and external sources. moreover, exception processing can be star ted by the trap instruction (software exception) or by generation of an exception event (fetching of an illegal op code) (exception trap). 21.1.1 features interrupt source v850es/kg1+ external 1 channel (nmi pin) non-maskable interrupt internal 2 channels (wdt1, wdt2) external 8 channels (all edge detection interrupts) wdt1 1 channel tmp 3 channels tm0 8 channels tmh 2 channels tm5 2 channels wt 2 channels brg 1 channel uart 9 channels csi0 2 channels csia 2 channels iic 1 channel note kr 1 channel ad 1 channel dma 4 channels lvi 1 channel interrupt function maskable interrupt internal total 40 channels 16 channels (trap00h to trap0fh) software exception 16 channels (trap10h to trap1fh) exception function exception trap 2 channels (ilgop/dbg0) note only in the .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 630 table 21-1. interrupt source list (1/2) type classification default priority name trigger interrupt source exception code handler address restored pc interrupt control register reset pin input pin reset interrupt ? reset internal reset input from wdt1, wdt2 wdt1 wdt2 0000h 00000000h u ndefined ? ? nmi nmi pin valid edge input pin 0010h 00000010h nextpc ? ? intwdt1 wdt1 overflow (when non- maskable interrupt selected) wdt1 0020h 00000020h note 1 ? non- maskable interrupt ? intwdt2 wdt2 overflow (when non- maskable interrupt selected) wdt2 0030h 00000020h note 1 ? ? trap0n note 2 trap instruction ? 004nh note 2 00000040h nextpc ? software exception exception ? trap1n note 2 trap instruction ? 005nh note 2 00000050h nextpc ? exception trap exception ? ilgop/ dbg0 illegal op code/dbtrap instruction ? 0060h 00000060h nextpc ? 0 intwdtm1 wdt1 overflow (when interval timer selected) wdt1 0080h 00000080h nextpc wdt1ic 1 intp0 intp0 pin valid edge input pin 0090h 00000090h nextpc pic0 2 intp1 intp1 pin valid edge input pin 00a0h 000000a0h nextpc pic1 3 intp2 intp2 pin valid edge input pin 00b0h 000000b0h nextpc pic2 4 intp3 intp3 pin valid edge input pin 00c0h 000000c0h nextpc pic3 5 intp4 intp4 pin valid edge input pin 00d0h 000000d0h nextpc pic4 6 intp5 intp5 pin valid edge input pin 00e0h 000000e0h nextpc pic5 7 intp6 intp6 pin valid edge input pin 00f0h 000000f0h nextpc pic6 8 inttm000 tm00 and cr000 match tm00 0100h 00000100h nextpc tm0ic00 9 inttm001 tm00 and cr001 match tm00 0110h 00000110h nextpc tm0ic01 10 inttm010 tm01 and cr010 match tm01 0120h 00000120h nextpc tm0ic10 11 inttm011 tm01 and cr011 match tm01 0130h 00000130h nextpc tm0ic11 12 inttm50 tm50 and cr50 match tm50 0140h 00000140h nextpc tm5ic0 13 inttm51 tm51 and cr51 match tm51 0150h 00000150h nextpc tm5ic1 14 intcsi00 csi00 transfer completion csi00 0160h 00000160h nextpc csi0ic0 15 intcsi01 csi01 transfer completion csi01 0170h 00000170h nextpc csi0ic1 16 intsre0 uart0 reception error occurrence uart0 0180h 00000180h nextpc sreic0 17 intsr0 uart0 reception completion uart0 0190h 00000190h nextpc sric0 maskable interrupt 18 intst0 uart0 transmission completion uart0 01a0h 000001ah nextpc stic0 notes 1. for restoration in the case of intwdt1 and intwdt2, refer to 21.10 cautions . 2. n = 0 to fh .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 631 table 21-1. interrupt source list (2/2) type classification default priority name trigger interrupt source exception code handler address restored pc interrupt control register 19 intsre1 uart1 reception error occurrence uart1 01b0h 000001b0h nextpc sreic1 20 intsr1 uart1 reception completion uart1 01c0h 000001c0h nextpc sric1 21 intst1 uart1 transmission completion uart1 01d0h 000001d0h nextpc stic1 22 inttmh0 tmh0 and cmp00/cmp01 match tmh0 01e0h 000001e0h nextpc tmhic0 23 inttmh1 tmh1 and cmp10/cmp11 match tmh1 01f0h 000001f0h nextpc tmhic1 24 intcsia0 csia0 transfer completion csia0 0200h 00000200h nextpc csiaic0 25 intiic0 note i 2 c0 transfer completion i 2 c0 0210h 00000210h nextpc iicic0 26 intad a/d conversion completion a/d 0220h 00000220h nextpc adic 27 intkr key return interrupt kr 0230h 00000230h nextpc kric 28 intwti watch timer interval wt 0240h 00000240h nextpc wtiic 29 intwt watch timer reference time wt 0250h 00000250h nextpc wtic 30 intbrg 8-bit counter of prescaler 3 and prscm match prescaler 3 0260h 00000260h nextpc brgic 31 inttm020 tm02 and cr020 match tm02 0270h 00000270h nextpc tm0ic20 32 inttm021 tm02 and cr021 match tm02 0280h 00000280h nextpc tm0ic21 33 inttm030 tm03 and cr030 match tm03 0290h 00000290h nextpc tm0ic30 34 inttm031 tm03 and cr031 match tm03 02a0h 000002a0h nextpc tm0ic31 35 intcsia1 csia1 transfer completion csia1 02b0h 000002b0h nextpc csiaic1 41 intsre2 uart2 reception error occurrence uart2 0310h 00000310h nextpc sreic2 42 intsr2 uart2 reception completion uart2 0320h 00000320h nextpc sric2 43 intst2 uart2 transmission completion uart2 0330h 00000330h nextpc stic2 45 intlvi low-voltage detection lvi 0380h 00000380h nextpc lviic 46 intp7 intp7 pin valid edge input pin 0390h 00000390h nextpc pic7 47 inttp0ov tmp0 overflow tmp 03a0h 000003a0h nextpc tpovic 48 inttp0cc0 tmp0 capture 0/ compare 0 match tmp 03b0h 000003b0h nextpc tpccic0 49 inttp0cc1 tmp0 capture 1/ compare 1 match tmp 03c0h 000003c0h nextpc tpccic1 50 intdma0 dma0 transfer completion dmac 03d0h 000003d0h nextpc dmaic0 51 intdma1 dma1 transfer completion dmac 03e0h 000003e0h nextpc dmaic1 52 intdma2 dma2 transfer completion dmac 03f0h 000003f0h nextpc dmaic2 maskable interrupt 53 intdma3 dma3 transfer completion dmac 0400h 00000400h nextpc dmaic3 note only in the pd703313y, 70f3311y, 70f3313y .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 632 remarks 1. default priority: the priority order when two or more maskable interrupt requests with the same priority level are generated at the sa me time. the highest priority is 0. the priority of non-maskable interrupt request is as follows. intwdt2 > intwdt1 > nmi restored pc: the value of the program counter (pc) saved to eipc, fepc, or dbpc when interrupt/exception processing is started. the restored pc when a non-maskable or maskable interrupt is acknowledged while either of the following instructions is being executed does not become nextpc (when an interrupt is acknowledged during the execution of an instruction, the execution of that in struction is stopped and is resumed following completion of interrupt servicing). ? ? ? .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 633 21.2 non-maskable interrupts non-maskable interrupt request signals are acknowledged unconditionally, even when interrupts are disabled (di state). non-maskable interrupts (nmi) are not subject to pr iority control and take precedence over all other interrupt request signals. the following three types of non-maskable interrupt request signals are available in the v850es/kg1+. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 634 figure 21-1. acknowledging non-maskab le interrupt request signals (1/2) (a) if two or more nmi request si gnals are simultan eously generated main routine system reset nmi, intwdt2 request .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 635 figure 21-1. acknowledging non-maskab le interrupt request signals (2/2) (b) if a new non-maskable interr upt request signal is generated during a non-maskable interrupt servicing non-maskable interrupt currently being serviced non-maskable interrupt request newly generated during non-maskable interrupt servicing nmi intwdt1 intwdt2 nmi generation of nmi request during nmi processing generation of intwdt1 request during nmi processing (np = 1 state prior to intwdt1 request is maintained) generation of intwdt1 request during nmi processing (set np = 0 before intwdt1 request) generation of intwdt1 request during nmi processing (set np = 0 after intwdt1 request) generation of intwdt2 request during nmi processing main routine nmi request .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 636 21.2.1 operation upon generation of a non-maskable interrupt request si gnal, the cpu performs the following processing and transfers control to a handler routine. <1> saves the restored pc to fepc. <2> saves the current psw to fepsw. <3> writes the exception code (0010h, 0020h, 0030h ) to the higher halfword (fecc) of ecr. <4> sets the psw.np and psw.id bits to 1 and clears the psw.ep bit to 0. <5> loads the handler address (00000010h, 00000020h, 00000030h) of the non-maskable interrupt to the pc and transfers control. figure 21-2 shows the servicing flow for non-maskable interrupts. figure 21-2. non-maskable interrupt servicing nmi input non-maskable interrupt request interrupt servicing interrupt request held pending fepc fepsw ecr. fecc psw. np psw. ep psw. id pc restored pc psw exception code 1 0 1 handler address intc acknowledged cpu processing psw. np 1 0 .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 637 21.2.2 restore execution is restored from non-maskable inte rrupt servicing by the reti instruction. (1) in case of nmi restore from nmi processing is done with the reti instruction. when the reti instruction is executed , the cpu performs the following processing and transfers control to the address of the restored pc. (i) loads the values of the restored pc and psw from fepc and fepsw , respectively, because the psw.ep bit and the psw.np bit are 0 and 1, respectively. (ii) transfers control back to the load ed address of the restored pc and psw. figure 21-3 shows the processing fl ow of the reti instruction. figure 21-3. reti instruction processing psw.ep reti instruction pc psw eipc eipsw psw.np original processing restored pc psw fepc fepsw 1 1 0 0 caution when the ep bit and the np bit are changed by the ldsr instruction dur ing non-maskable interrupt servicing, in order to restore the pc and psw correctly during restoring by the reti instruction, it is necessary to clear the ep bit back to 0 and set the np bit back to 1 using the ldsr instruction immediately be fore the reti instruction. remark the solid line shows the cpu processing flow. (2) in case of intwdt1 and intwdt2 signals for non-maskable interrupt servicing by the non-maskabl e interrupt request signals (intwdt1, intwdt2), refer to 21.10 cautions . .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 638 21.2.3 np flag the np flag is a status flag that indicates that non-maskable interrupt servicing is in progress. this flag is set when a non-maskable interrupt request has been acknowledged, and masks all non-maskable requests to prevent multiple interrupts. 0 np ep id sat cy ov s z psw no non-maskable interrupt servicing non-maskable interrupt serving in progress np 0 1 nmi servicing status after reset: 00000020h .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 639 21.3 maskable interrupts maskable interrupt request signals can be masked by inte rrupt control registers. the v850es/kg1+ has 48 maskable interrupt sources (refer to 21.1.1 features ). if two or more maskable interrupt request signals are generated at the same time, they are acknowledged according to the default priority. in addition to the default pr iority, eight levels of interrupt priorities can be specified by using the interrupt control registers, allowing programmable priority control. when an interrupt request signal has been acknowledged, the interrupt disabled (di) status is set and the acknowledgment of other maskable inte rrupt request signals is disabled. when the ei instruction is executed in an interrupt servicing routine, the interr upt enabled (ei) status is set, which enables acknowledgment of interrupt request signals having a priority higher than that of the interrupt request signal currently in progress. note that only interrupt request signals with a higher priority have this capability; interrupt request signals with the same priority level cannot be nested. to use multiple interrupts, it is neces sary to save eipc and eipsw to memory or a register befor e executing the ei instruction, and restore eipc and eipsw to the original values by executing the di instruction before the reti instruction. when the wdtm1.wdtm14 bit is cleared to 0, the watchdog timer 1 overflow interrupt functions as a maskable interrupt (intwdtm1). 21.3.1 operation if a maskable interrupt request signal is generated, t he cpu performs the following processing and transfers control to a handler routine. <1> saves the restored pc to eipc. <2> saves the current psw to eipsw. <3> writes an exception code to t he lower halfword of ecr (eicc). <4> sets the psw.id bit to 1 and clears the psw.ep bit to 0. <5> loads the corresponding handler addr ess to the pc and transfers control. the maskable interrupt request signal masked by intc and the maskable interrupt request signal that occurs while another interrupt is being serviced (when psw.np bit = 1 or id bit = 1) are held pending internally. when the interrupts are unmasked, or when the np bit = 0 and the id bit = 0 by using the reti and ldsr instructions, a new maskable interrupt servicing is started in accordance with th e priority of the pending maskable interrupt request signal. figure 21-4 shows the servicing flow for maskable interrupts. .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 640 figure 21-4. maskable interrupt servicing maskable interrupt request interrupt servicing eipc eipsw ecr. eicc psw. ep psw. id ispr. corresponding- bit note pc intc acknowledged cpu processing interrupt mask released? priority higher than that of interrupt currently being serviced? interrupt request pending psw. np psw. id interrupt request pending no no no no 1 0 1 0 int input yes yes yes yes priority higher than that of other interrupt requests? highest default priority of interrupt requests with the same priority? restored pc psw exception code 0 1 1 handler address note for the ispr register, refer to 21.3.6 in-service prio rity register (ispr) . .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 641 21.3.2 restore execution is restored from maskable interrupt servicing by the reti instruction. when the reti instruction is execut ed, the cpu performs the following processing and transfers control to the address of the restored pc. (1) loads the values of the restored pc and psw fr om eipc and eipsw because the psw.ep bit and the psw.np bit are both 0. (2) transfers control to the loaded address of the restored pc and psw. figure 21-5 shows the processing fl ow of the reti instruction. figure 21-5. reti instruction processing reti instruction original processing restored pc psw ispr. corresponding -bit note eipc eipsw 0 psw. ep 1 0 1 0 pc psw fepc fepsw psw. np note for the ispr register, refer to 21.3.6 in-service prio rity register (ispr) . caution when the ep bit and the np bit are ch anged by the ldsr instruction during maskable interrupt servicing, in order to restore the pc and psw correctly during restoring by the reti instruction, it is necessary to clear the ep bit back to 0 and the np bit back to 0 using the ldsr instruction immediately be fore the reti instruction. remark the solid line shows the cpu processing flow. .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 642 21.3.3 priorities of maskable interrupts intc provides a multiple interrupt servicing in which an interrupt can be acknowledged while another interrupt is being serviced. multiple interrupts can be controlled by priority levels. there are two types of priority leve l control: control based on the default pr iority levels, and control based on the programmable priority levels specified by the interrupt priority level specificat ion bit (xxicn.xxprn bit). when two or more interrupts having the same priority level specifi ed by xxprn are generated at the same time, interrupts are serviced in order depending on the priority level allocated to each interrupt request (default priority level) beforehand. for more information, refer to table 21-1 interrupt source list . programmable priority control divides interrupt requests into eight levels by setting the priority level specification flag. note that when an interrupt request signal is acknowledged , the psw.id flag is automatically set (1). therefore, when multiple interrupts are to be used, clear (0) the id flag bef orehand (for example, by plac ing the ei instruction into the interrupt service program) to enable interrupts. remark xx: identifying name of eac h peripheral unit (refer to table 21-2 interrupt control registers (xxicn) ) n: peripheral unit number (refer to table 21-2 interrupt control registers (xxicn) ) .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 643 figure 21-6. example of interrupt nesting (1/2) main routine ei ei interrupt request a (level 3) servicing of a servicing of b interrupt request b (level 2) servicing of c interrupt request c (level 3) interrupt request d (level 2) servicing of d servicing of e ei interrupt request e (level 2) interrupt request f (level 3) servicing of f ei servicing of g interrupt request g (level 1) interrupt request h (level 1) servicing of h interrupt request h is held pending even if interrupts are enabled because its priority is the same as that of g. interrupt request f is held pending even if interrupts are enabled because its priority is lower than that of e. interrupt request b is acknowledged because the priority of b is higher than that of a and interrupts are enabled. although the priority of interrupt request d is higher than that of c, d is held pending because interrupts are disabled. caution the values of eipc and eipsw must be saved before executing multiple interrupts. remarks 1. a to u in the figure are the names of interrupt request signals shown for the sake of explanation. 2. the default priority in the figure indicates the re lative priority between two interrupt request signals. .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 644 figure 21-6. example of interrupt nesting (2/2) main routine ei interrupt request i (level 2) servicing of i servicing of k interrupt request j (level 3) servicing of j interrupt request l (level 2) ei ei ei ei interrupt request o (level 3) interrupt request s (level 1) interrupt request k (level 1) servicing of l servicing of n servicing of m servicing of s servicing of u servicing of t interrupt request m (level 3) interrupt request n (level 1) servicing of o interrupt request p (level 2) interrupt request q (level 1) interrupt request r (level 0) interrupt request u (level 2) note 2 interrupt request t (level 2) note 1 servicing of p servicing of q servicing of r ei if levels 3 to 0 are acknowledged interrupt request j is held pending because its priority is lower than that of i. k that occurs after j is acknowledged because it has the higher priority. interrupt requests m and n are held pending because servicing of l is performed in the interrupt disabled status. pending interrupt requests are acknowledged after servicing of interrupt request l. at this time, interrupt requests n is acknowledged first even though m has occurred first because the priority of n is higher than that of m. pending interrupt requests t and u are acknowledged after processing of s. because the priorities of t and u are the same, u is acknowledged first because it has the higher default priority, regardless of the order in which the interrupt requests have been generated. notes 1. lower default priority 2. higher default priority .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 645 figure 21-7. example of servicing simultan eously generated inte rrupt request signals main routine ei interrupt request a (level 2) interrupt request b (level 1) note 1 interrupt request c (level 1) note 2 servicing of interrupt request b servicing of interrupt request c servicing of interrupt request a interrupt requests b and c are acknowledged first according to their priorities. because the priorities of b and c are the same, b is acknowledged first because it has the higher default priority. notes 1. higher default priority 2. lower default priority .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 646 21.3.4 interrupt control register (xxlcn) an interrupt control register is assigned to each maska ble interrupt and sets the control conditions for each maskable interrupt request. the interrupt control registers can be read or written in 8-bit or 1-bit units. after reset, xxicn is set to 47h. caution be sure to read the xxicn. xxifn bit while interrupts are disabled (d i). if the xxifn bit is read while interrupts are enabled (e i), an incorrect value may be read if there is a conflict between acknowledgment of the interrupt and reading of the bit. xxifn interrupt request not generated interrupt request generated xxifn 0 1 interrupt request flag note xxicn xxmkn 0 0 0 xxprn2 xxprn1 xxprn0 enables interrupt servicing disables interrupt servicing (pending) xxmkn 0 1 interrupt mask flag specifies level 0 (highest) specifies level 1 specifies level 2 specifies level 3 specifies level 4 specifies level 5 specifies level 6 specifies level 7 (lowest) xxprn2 0 0 0 0 1 1 1 1 interrupt priority specification bit xxprn1 0 0 1 1 0 0 1 1 xxprn0 0 1 0 1 0 1 0 1 after reset: 47h r/w address: fffff110h to fffff168h < > < > note automatically reset by hardware when interrupt request is acknowledged. remark xx: identifying name of eac h peripheral unit (refer to table 21-2 interrupt control registers (xxicn) ) n: peripheral unit number (refer to table 21-2 interrupt control registers (xxicn) ) following tables list the addresses and bits of the interrupt control registers. .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 647 table 21-2. interrupt cont rol registers (xxlcn) (1/2) bits address register <7> <6> 5 4 3 2 1 0 fffff110h wdt1ic wdt1if wdt1mk 0 0 0 wdt1pr2 wdt1pr1 wdt1pr0 fffff112h pic0 pif0 pmk0 0 0 0 ppr02 ppr01 ppr00 fffff114h pic1 pif1 pmk1 0 0 0 ppr12 ppr11 ppr10 fffff116h pic2 pif2 pmk2 0 0 0 ppr22 ppr21 ppr20 fffff118h pic3 pif3 pmk3 0 0 0 ppr32 ppr31 ppr30 fffff11ah pic4 pif4 pmk4 0 0 0 ppr42 ppr41 ppr40 fffff11ch pic5 pif5 pmk5 0 0 0 ppr52 ppr51 ppr50 fffff11eh pic6 pif6 pmk6 0 0 0 ppr62 ppr61 ppr60 fffff120h tm0ic00 tm0if00 tm0mk00 0 0 0 tm0pr002 tm0pr001 tm0pr000 fffff122h tm0ic01 tm0if01 tm0mk01 0 0 0 tm0pr012 tm0pr011 tm0pr010 fffff124h tm0ic10 tm0if10 tm0mk10 0 0 0 tm0pr102 tm0pr101 tm0pr100 fffff126h tm0ic11 tm0if11 tm0mk11 0 0 0 tm0pr112 tm0pr111 tm0pr110 fffff128h tm5ic0 tm5if0 tm5mk0 0 0 0 tm5pr02 tm5pr01 tm5pr00 fffff12ah tm5ic1 tm5if1 tm5mk1 0 0 0 tm5pr12 tm5pr11 tm5pr10 fffff12ch csi0ic0 csi0if0 csi0mk0 0 0 0 csi0pr02 csi0pr01 csi0pr00 fffff12eh csi0ic1 csi0if1 csi0mk1 0 0 0 csi0pr12 csi0pr11 csi0pr10 fffff130h sreic0 sreif0 sremk0 0 0 0 srepr02 srepr01 srepr00 fffff132h sric0 srif0 srmk0 0 0 0 srpr02 srpr01 srpr00 fffff134h stic0 stif0 stmk0 0 0 0 stpr02 stpr01 stpr00 fffff136h sreic1 sreif1 sremk1 0 0 0 srepr12 srepr11 srepr10 fffff138h sric1 srif1 srmk1 0 0 0 srpr12 srpr11 srpr10 fffff13ah stic1 stif1 stmk1 0 0 0 stpr12 stpr11 stpr10 fffff13ch tmhic0 tmhif0 tmhmk0 0 0 0 tmhpr02 tmhpr01 tmhpr00 fffff13eh tmhic1 tmhif1 tmhmk1 0 0 0 tmhpr12 tmhpr11 tmhpr10 fffff140h csiaic0 csiaif0 csiamk0 0 0 0 csiapr02 csiapr01 csiapr00 fffff142h iicic0 note iicif0 iicmk0 0 0 0 iicpr02 iicpr01 iicpr00 fffff144h adic adif admk 0 0 0 adpr2 adpr1 adpr0 fffff146h kric krif krmk 0 0 0 krpr2 krpr1 krpr0 fffff148h wtiic wtiif wtimk 0 0 0 wtipr2 wtipr1 wtipr0 fffff14ah wtic wtif wtmk 0 0 0 wtpr2 wtpr1 wtpr0 fffff14ch brgic brgif brgmk 0 0 0 brgpr2 brgpr1 brgpr0 fffff14eh tm0ic20 tm0if20 tm0mk20 0 0 0 tm0pr202 tm0pr201 tm0pr200 fffff150h tm0ic21 tm0if21 tm0mk21 0 0 0 tm0pr212 tm0pr211 tm0pr210 fffff152h tm0ic30 tm0if30 tm0mk30 0 0 0 tm0pr302 tm0pr301 tm0pr300 fffff154h tm0ic31 tm0if31 tm0mk31 0 0 0 tm0pr312 tm0pr311 tm0pr310 fffff156h csiaic1 csiaif1 csiamk1 0 0 0 csiapr12 csiapr11 csiapr10 fffff162h sreic2 sreif2 sremk2 0 0 0 srepr22 srepr21 srepr20 fffff164h sric2 srif2 srmk2 0 0 0 srpr22 srpr21 srpr20 fffff166h stic2 stif2 stmk2 0 0 0 stpr22 stpr21 stpr20 fffff170h lviic lviif lvimk 0 0 0 lvipr2 lvipr1 lvipr0 fffff172h pic7 pif7 pmk7 0 0 0 ppr72 ppr71 ppr70 fffff174h tp0ovic tp0ovif tp0ovmk 0 0 0 tp0ovpr2 tp0ovpr1 tp0ovpr0 fffff176h tp0ccic0 tp0ccif0 tp0ccmk0 0 0 0 tp0ccpr02 tp0ccpr01 tp0ccpr00 fffff178h tp0ccic1 tp0ccif1 tp0ccmk1 0 0 0 tp0ccpr12 tp0ccpr11 tp0ccpr10 fffff17ah dmaic0 dmaif0 dmamk0 0 0 0 dmapr02 dmapr01 dmapr00 note only in the pd703313y, 70f3311y, 70f3313y .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 648 table 21-2. interrupt cont rol registers (xxlcn) (2/2) bits address register <7> <6> 5 4 3 2 1 0 fffff17ch dmaic1 dmaif1 dmamk1 0 0 0 dmapr12 dmapr11 dmapr10 fffff17eh dmaic2 dmaif2 dmamk2 0 0 0 dmapr22 dmapr21 dmapr20 fffff180h dmaic3 dmaif3 dmamk3 0 0 0 dmapr32 dmapr31 dmapr30 21.3.5 interrupt mask register s 0 to 3 (imr0 to imr3) these registers set the interrupt mask status for maskable in terrupts. the xxmkn bit of the imr0 to imr3 registers and the xxmkn bit of the xxlcn regist er are respectively linked. the imrm register can be read or written in 16-bit units. when the higher 8 bits of the imrm r egister are used as the imrmh register and the lower 8 bits of the imrm register as the imrml register, they can be read or written in 8-bit or 1-bit units (m = 0 to 3). caution in the device file, th e xxmkn bit of the xxicn register is de fined as a reserved word. therefore, if bit manipulation is performed using the name xxm kn, the xxicn register, not the imrm register, is rewritten (as a result, the imrm register is also rewritten). .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 649 csi0mk1 pmk6 imr0 (imr0h note ) (imr0l) csi0mk0 pmk5 tm5mk1 pmk4 tm5mk0 pmk3 tm0mk11 pmk2 tm0mk10 pmk1 tm0mk01 pmk0 tm0mk00 wdt1mk after reset: ffffh r/w address: imr0 fffff100h, imr0l fffff100h, imr0h fffff101h after reset: ffffh r/w address: imr1 fffff102h, imr1l fffff102h, imr1h fffff103h after reset: ffffh r/w address: imr2 fffff104h, imr2l fffff104h, imr2h fffff105h tm0mk20 tmhmk1 imr1 (imr1h note ) (imr1l) brgmk tmhmk0 wtmk stmk1 wtimk srmk1 krmk sremk1 admk stmk0 iicmk0 srmk0 csiamk0 sremk0 1 1 xxmkn 0 1 enables interrupt servicing disables interrupt servicing imr2 (imr2h note ) (imr2l) 1 1 1 1 1 1 stmk2 csiamk1 srmk2 tm0mk31 sremk2 tm0mk30 1 tm0mk21 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 0 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 0 8 9 10 11 12 13 interrupt mask flag setting 14 15 1 2 3 4 5 6 7 0 after reset: ffffh r/w address: imr3 fffff106h, imr3l fffff106h, imr3h fffff107h 1 dmamk2 imr3 (imr3h note ) (imr3l) 1 dmamk1 1 dmamk0 1 tp0ccmk1 1 tp0ccmk2 1 tp0ovfmk 1 pmk7 dmamk3 lvimk 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 0 note when reading from or writing to bits 8 to 15 of the imr0 to imr3 registers in 8-bit or 1-bit units, specify these bits as bits 0 to 7 of the imr0h to imr3h registers. caution set bits 15 to 12 and 8 to 4 of the im r2 register and bits 15 to 9 of the imr3 register to 1. the operation is not guaranteed if their value is changed. remark xx: identifying name of eac h peripheral unit (refer to table 21-2 interrupt control registers (xxicn) ) n: peripheral unit number (refer to table 21-2 interrupt control registers (xxicn) ) .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 650 21.3.6 in-service priority register (ispr) this register holds the priority level of the maskable in terrupt currently being ackno wledged. when the interrupt request signal is acknowledged, the bit of this register corres ponding to the priority level of that interrupt request signal is set (1) and remains set while the interrupt is being serviced. when the reti instruction is executed, t he bit among those that are set (1) in t he ispr register that corresponds to the interrupt request signal having the highest priority is aut omatically cleared (0) by hardw are. however, it is not cleared (0) when execution is returned from non-maskab le interrupt servicing or exception processing. this register is read-only in 8-bit or 1-bit units. after reset, ispr is cleared to 00h. caution if an interrupt is acknowledged while the ispr register is being read in the interrupt enabled (ei) status, the value of the ispr register after th e bits of the register have been set to 1 by acknowledging the interrupt may be read. to accura tely read the value of the ispr register before an interrupt is acknowledge d, read the register while inte rrupts are disabled (di status). ispr7 interrupt request with priority n is not acknowledged interrupt request with priority n is being acknowledged isprn 0 1 priority of interrupt currently being acknowledged ispr ispr6 ispr5 ispr4 ispr3 ispr2 ispr1 ispr0 after reset: 00h r address: fffff1fah < > < > < > < > < > < > < > < > remark n = 0 to 7 (priority level) .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 651 21.3.7 id flag the interrupt disable flag (id) is allocated to the psw and controls the maskable inte rrupt?s operating state, and stores control information regarding enabling/disa bling reception of interrupt request signals. after reset, this flag is set to 00000020h. 0 np ep id sat cy ov s z psw maskable interrupt request signal acknowledgment enabled maskable interrupt request signal acknowledgment disabled id 0 1 maskable interrupt servicing specification note after reset: 00000020h note interrupt disable flag (id) function id is set (1) by the di instruction and cleared (0) by the ei instruction. its value is also modified by the reti instruction or ld sr instruction when referencing the psw. non-maskable interrupt request signals and e xceptions are acknowledged regardless of this flag. when a maskable interrupt reques t signal is acknowledged, the id flag is automatically set (1) by hardware. an interrupt request signal generated during t he acknowledgment disabled period (id flag = 1) can be acknowledged when the xxicn.xxifn bit is set (1), and the id flag is cleared (0). .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 652 21.3.8 watchdog timer mode register 1 (wdtm1) this register is a special register that can be written to only in a s pecial sequence. to generate a maskable interrupt (intwdt1), clear the wdtm14 bit to 0. this register can be read or written in 8- bit or 1-bit units (for details, refer to chapter 12 watchdog timer functions ). run1 stop count operation clear counter and start count operation run1 0 1 watchdog timer operation mode selection note 1 wdtm1 0 0 wdtm14 wdtm13 0 0 0 after reset: 00h r/w address: fffff6c2h interval timer mode (generate maskable interrupt intwdtm1 when overflow occurs) watchdog timer mode 1 note 3 (generate non-maskable interrupt intwdt1 when overflow occurs) watchdog timer mode 2 (start wdtres2 reset operation when overflow occurs) wdtm14 0 0 1 1 wdtm13 0 1 0 1 watchdog timer operation mode selection note 2 < > notes 1. once the run1 bit has been set (1), it cannot be cleared (0) by software. therefore, once counting starts, it cannot be stopped except reset. 2. once the wdtm14 and wdtm13 bits have bee n set (1), they cannot be cleared (0) by software. reset is the only way to clear these bits. 3. for non-maskable interrupt servicing due to a non-maskable interrupt request signal (intwdt1), refer to 21.10 cautions . .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 653 21.4 external interrupt request i nput pins (nmi, intp0 to intp7) 21.4.1 noise elimination (1) noise elimination for nmi pin the nmi pin includes a noise eliminator that operates using analog delay. therefore, a signal input to the nmi pin is not detected as an edge unless it maintains its input level for a cert ain period. the edge is detected only after a certain period has elapsed. the nmi pin is used for releasing the stop mode. in the stop mode, noise elim ination using the system clock is not performed because the internal system clock is stopped. (2) noise elimination for intp0 to intp2 and intp4 to intp7 pins the intp0 to intp2 and intp4 to intp7 pins include a noise eliminator that operat es using analog delay. therefore, a signal input to each pin is not detected as an edge unless it ma intains its input level for a certain period. the edge is detected only after a certain period has elapsed. (3) noise elimination for intp3 pin the intp3 pin has a digital/analog noise eliminat or that can be selected by the nfc.nfen bit. the number of times the digital noise eliminator samp les signals can be selected by the nfc.nfsts bit from three or two. the sampling clock can be selected by the nfc.nfc2 to nfc.nfc0 bits from f xx /64, f xx /128, f xx /256, f xx /512, f xx /1024, and f xt . if the sampling clock is set to f xx /64, f xx /128, f xx /256, f xx /512, or f xx /1024, the sampling clock stops in the idle/stop mode. it c annot therefore be used to release the standby mode. to release the standby mode, select f xt as the sampling clock or select the analog noise eliminator. .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 654 (a) digital noise eliminat ion control register (nfc) the nfc register controls elimination of noise on the intp3 pin. if f xt is used as the noise elimination clock, the external interrupt function of the in tp3 pin can be used even in the idle/stop mode. this register can be read or written in 8-bit or 1-bit units. after reset, nfc is cleared to 00h. nfen analog noise elimination digital noise elimination nfen 0 1 setting of intp3 pin noise elimination nfc nfsts 0 0 0 nfc2 nfc1 nfc0 number of samplings = 3 times number of samplings = 2 times nfsts 0 1 setting of number of samplings of digital noise elimination after reset: 00h r/w address: fffff318h f xx /64 f xx /128 f xx /256 f xx /512 f xx /1024 f xt nfc2 0 0 0 0 1 1 nfc1 0 0 1 1 0 0 nfc0 0 1 0 1 0 1 selection of sampling clock setting prohibited other than above remark f xx : main clock frequency f xt : subclock frequency .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 655 the digital noise elimination width (t wit3 ) is as follows, where t is the sampling clock period and m is the number of samplings. ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 656 (1) external interrupt rising and falling e dge specification registers 0 (intr0, intf0) these are 8-bit registers t hat specify detection of the rising and fa lling edges of the nmi and intp0 to intp3 pins. these registers can be read or wri tten in 8-bit or 1-bit units. after reset, these registers are cleared to 00h. caution when switching to the port function from th e external interrupt functi on (alternate function), edge detection may be performe d. therefore, set the port m ode after setting the intf0n and intr0n bits = 00. 0 intr0 intr06 intr05 intr04 intr03 intr02 intp2 intp1 intp0 nmi 00 after reset: 00h r/w address: intr0 fffffc20h, intf0 fffffc00h intp2 intp1 intp0 nmi intp3 intp3 0 intf0 intf06 intf05 intf04 intf03 intf02 0 0 remark for specification of the valid edge, refer to table 21-3 . table 21-3. nmi and intp0 to in tp3 pins valid edge specification intf0n intr0n valid edge specification (n = 2 to 6) 0 0 no edge detection 0 1 rising edge 1 0 falling edge 1 1 both edges remark n = 2: control of nmi pin n = 3 to 6: control of intp0 to intp3 pins .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 657 (2) external interrupt rising and falling e dge specification registers 3 (intr3, intf3) these are 8-bit registers that s pecify detection of the rising and fall ing edges of the intp7 pin. these registers can be read or wri tten in 8-bit or 1-bit units. after reset, these registers are cleared to 00h. caution when switching to the port function from th e external interrupt functi on (alternate function), edge detection may be performe d. therefore, set the port m ode after setting the intf31 and intr31 bits = 00. 0 intr3 0 0 0 0 0 intr31 0 after reset: 00h r/w address: intr3 fffffc26h, intf3 fffffc06h intp7 intp7 0 intf3 0 0 0 0 0 intf31 0 remark for specification of the valid edge, refer to table 21-4 . table 21-4. intp7 pin valid edge specification intf31 intr31 valid edge specification 0 0 no edge detection 0 1 rising edge 1 0 falling edge 1 1 both edges .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 658 (3) external interrupt rising and falling edge specification registers 9h (intr9h, intf9h) these are 8-bit registers that s pecify detection of the rising edge of the intp4 to intp6 pins. these registers can be read or wri tten in 8-bit or 1-bit units. after reset, these registers are cleared to 00h. caution when switching to the port function from th e external interrupt functi on (alternate function), edge detection may be performe d. therefore, set the port m ode after setting the intf9n and intr9n bits = 00. intr915 intr9h intr914 intr913 0 0 0 0 0 after reset: 00h r/w address: intr9h fffffc33h, intf9h fffffc13h intp5 intp4 intp6 intp5 intp4 intp6 intf915 intf9h intf914 intf913 0 0 0 0 0 remark for specification of the valid edge, refer to table 21-5 . table 21-5. intp4 to intp6 pins valid edge specification intf9n intr9n valid edge specification (n = 13 to 15) 0 0 no edge detection 0 1 rising edge 1 0 falling edge 1 1 both edges remark n = 13 to 15: control of intp4 to intp6 pins .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 659 21.5 software exceptions a software exception is generated when the cpu executes the trap instruction. software exceptions can always be acknowledged. 21.5.1 operation if a software exception occurs, the cpu performs the fo llowing processing and transfers control to a handler routine. <1> saves the restored pc to eipc. <2> saves the current psw to eipsw. <3> writes an exception code to the lower 16 bits (eicc) of ecr (interrupt source). <4> sets the psw.ep and psw.id bits to 1. <5> loads the handler address (00000040h or 00000050h) for the software exception routine to the pc and transfers control. figure 21-8 shows the software exception processing flow. figure 21-8. software exception processing trap instruction note eipc eipsw ecr.eicc psw.ep psw.id pc restored pc psw exception code 1 1 handler address cpu processing exception processing note trap instruction format: trap vector (however, vector = 00h to 1fh) the handler address is determined by the operand (vector) of the trap instructio n. if the vector is 00h to 1fh, the handler address is 00000040h, and if the vector is 10h to 1fh, the handler address is 00000050h. .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 660 21.5.2 restore execution is restored from software exceptio n processing by the reti instruction. when the reti instruction is execut ed, the cpu performs the following processing and transfers control to the address of the restored pc. <1> loads the restored pc and psw from ei pc and eipsw because the psw.ep bit is 1. <2> transfers control to the address of the restored pc and psw. figure 21-9 shows the processing fl ow of the reti instruction. figure 21-9. reti instruction processing psw.ep reti instruction pc psw eipc eipsw psw.np original processing restored pc psw fepc fepsw 1 1 0 0 caution when the ep bit and the np bit are ch anged by the ldsr instruction during software exception processing, in order to restore the pc and psw correctly during restoring by the reti instruction, it is necessary to set th e ep bit back to 1 using the ldsr instruction immediately before th e reti instruction. remark the solid line shows the cpu processing flow. .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 661 21.5.3 ep flag the ep flag is a status flag that indica tes that exception processing is in progress. it is set when an exception occurs. 0 np ep id sat cy ov s z psw exception processing not in progress exception processing in progress ep 0 1 exception processing status after reset: 00000020h .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 662 21.6 exception trap the exception trap is an interrupt that is requested when t he illegal execution of an instruction takes place. in the v850es/kg1+, an illegal op code trap (ilgop: illegal op c ode trap) is considered as an exception trap. 21.6.1 illegal op code an illegal op code is defined as an instruction with inst ruction op code (bits 10 to 5) = 111111b, sub-op code (bits 26 to 23) = 0111b to 1111b, and sub-op code (bit 16) = 0b. when such an instruction is executed, an exception trap is generated. 15 16 23 22 xxxxxx0 x x x x x x x x x x 1 1 1 1 1 1 x x x x x 27 26 31 0 4 5 10 11 1 1 1 1 1 1 0 1 x: don?t care caution it is recommended not to use illegal op code because instruct ions may newly be assigned in the future. (1) operation upon generation of an exception trap, the cpu performs the following processing and transfers control to a handler routine. <1> saves the restored pc to dbpc. <2> saves the current psw to dbpsw. <3> sets the psw.np, psw.ep, and psw.id bits. <4> loads the handler address (00000060h) for the except ion trap routine to the pc and transfers control. figure 21-10 shows the exception trap processing flow. .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 663 figure 21-10. exception trap processing exception trap (ilgop) occurs dbpc dbpsw psw.np psw.ep psw.id pc restored pc psw 1 1 1 00000060h exception processing cpu processing (2) restore execution is restored from exception trap processing by the dbret instruction. when the dbret instruction is executed, the cpu performs the fo llowing processing and transfers cont rol to the address of the restored pc. <1> loads the restored pc and psw from dbpc and dbpsw. <2> transfers control to the loaded address of the restored pc and psw. figure 21-11 shows the processing flow for re store from exception trap processing. figure 21-11. processing flow fo r restore from exception trap dbret instruction pc psw dbpc dbpsw jump to restored pc address .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 664 21.6.2 debug trap a debug trap is an exception that occurs upon execution of the dbtrap inst ruction and that can be acknowledged at all times. when a debug trap occurs, the cpu performs the following processing. (1) operation <1> saves the restored pc to dbpc. <2> saves the current psw to dbpsw. <3> sets the psw.np, psw.ep, and psw.id bits to 1. <4> sets the handler address (00000060h) for the debug trap routine to the pc and transfers control. figure 21-12 shows the debug trap processing flow. figure 21-12. debug trap processing dbtrap instruction dbpc dbpsw psw.np psw.ep psw.id pc restored pc psw 1 1 1 00000060h debug monitor routine processing cpu processing .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 665 (2) restore execution is restored from debug trap pr ocessing by the dbret instruction. when the dbret instruction is executed, the cpu performs the following processing and tr ansfers control to the address of the restored pc. <1> loads the restored pc and psw from dbpc and dbpsw. <2> transfers control to the loaded address of the restored pc and psw. figure 21-13 shows the processing flow fo r restore from debug trap processing. figure 21-13. processing flow for restore from debug trap dbret instruction pc psw dbpc dbpsw jump to restored pc address .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 666 21.7 multiple interru pt servicing control multiple interrupt servicing control is a function that st ops an interrupt service routine currently in progress if a higher priority interrupt request signal is generated, and processes the acknowledgm ent operation of the higher priority interrupt request signal. if an interrupt request signal with a lower or equal priority is generated and a service routi ne is currently in progress, the later interrupt request signal will be held pending. multiple interrupt servicing control is performed when inte rrupts are enabled (psw.id bit = 0). even in an interrupt servicing routine, multiple interrupt control must be performed while interrupts are enabled (id bit = 0). if a maskable interrupt or software exception is generated in a maskable interrupt or software exception service program, eipc and eipsw must be saved. the following example illustrates the procedure. (1) to acknowledge maskable interrupt re quest signals in service program service program for maskable interrupt or exception ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 667 (2) to generate exception in service program service program for maskable interrupt or exception ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 668 21.8 interrupt response time except in the following cases, the cpu interrupt response ti me is a minimum of 4 clocks. if inputting consecutive interrupt request signals, at least 4 clocks must be placed between each interrupt request signal. ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 21 interrupt/exception processing function preliminary user?s manual u16894ej1v0ud 669 21.9 periods in which interrupts are not acknowledged by cpu interrupts are acknowledged by the cpu while an instru ction is being executed. however, no interrupt is acknowledged between an interrupt request non-sample instruction and the next instruction. the following instructions are interrupt request non-sample instructions. ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 670 chapter 22 key interrupt function 22.1 function a key interrupt request signal (intkr) can be generated by inputting a falling edge to the eight key input pins (kr0 to kr7) by setting the krm register. caution if any of the kr0 to kr7 pins is at low l evel, the intkr signal is not generated even if a falling edge is input to another pin. table 22-1. assignment of key return detection pins flag pin description krm0 controls kr0 signal in 1-bit units krm1 controls kr1 signal in 1-bit units krm2 controls kr2 signal in 1-bit units krm3 controls kr3 signal in 1-bit units krm4 controls kr4 signal in 1-bit units krm5 controls kr5 signal in 1-bit units krm6 controls kr6 signal in 1-bit units krm7 controls kr7 signal in 1-bit units figure 22-1. key re turn block diagram intkr key return mode register (krm) krm7 krm6 krm5 krm4 krm3 krm2 krm1 krm0 kr7 kr6 kr5 kr4 kr3 kr2 kr1 kr0 .com .com .com .com 4 .com u datasheet
chapter 22 key interrupt function preliminary user?s manual u16894ej1v0ud 671 22.2 register (1) key return mode register (krm) the krm register controls the krm0 to krm7 bits using the kr0 to kr7 signals. this register can be read or writt en in 8-bit or 1-bit units. after reset, krm is cleared to 00h. krm7 does not detect key return signal detects key return signal krmn 0 1 key return mode control krm krm6 krm5 krm4 krm3 krm2 krm1 krm0 after reset: 00h r/w address: fffff300h caution if the krm register is changed, an interrupt request signal (intkr) may be generated. to prevent this, change th e krm register after disabling interrupts (di), and then enable interrupts (ei) a fter clearing the interrupt request flag (kric.krif bit) to 0. remark for the alternate-function pin settings, refer to table 4-16 settings when port pins are used for alternate functions . .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 672 chapter 23 standby function 23.1 overview the power consumption of the system can be effectively reduced by using t he standby modes in combination and selecting the appropriate mode for the application. the available standby modes are listed in table 23-1. table 23-1. standby modes mode functional outline halt mode mode to stop only the operating clock of the cpu idle mode mode to stop all the operations of the internal circuits except the oscillator note 1 stop mode mode to stop all the operations of the internal circuits except the subclock oscillator note 2 subclock operation mode mode to use the subclock as the internal system clock sub-idle mode mode to stop all the operations of the internal circuits, except the oscillator, in the subclock operation mode ring clock operation mode note 3 mode in which the internal system clock (f clk ) operates on the ring clock by using the clock monitor function ring halt mode note 3 mode in which only the operating clock of the cpu (f cpu ) is stopped in the ring clock operation mode notes 1. the pll does not stop. to realize low power consum ption, stop the pll and then shift to the idle mode. 2. change to the clock-through mode, stop the pll, t hen shift to the stop mode. for details, refer to chapter 6 clock generation function . 3. for details of the ring clock operat ion mode and ring halt mode, refer to chapter 25 clock monitor . .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 673 figure 23-1. status transition (1/2) normal operation mode (main clock operation) wait for stabilization of oscillation wait for stabilization of oscillation setting of halt mode specification of subclock operation mode specification of normal operation mode specification of idle mode interrupt request note 8 specification of halt mode interrupt request note 10 setting of stop mode idle mode ring halt mode halt mode sub-idle mode stop mode reset note 3 interrupt request note 2 setting of idle mode interrupt request note 4 interrupt request note 6 subclock operation mode (subclock operation) ring clock operation mode (ring-osc operation) reset note 1 reset note 1 reset note 7 reset note 7 note 5 note 5 note 5 note 5 wait for stabilization of oscillation wait for stabilization of oscillation wait for stabilization of oscillation clmres note 9 reset note 3 reset note 3 note 5 note 5 wait for stabilization of oscillation wait for stabilization of oscillation note 5 .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 674 figure 23-1. status transition (2/2) notes 1. reset pin input, wdtres2, pocr es, lvires, or clmres signal. in the case of the wdtres1 signal, the osci llation stabilization time is not secured. 2. non-maskable interrupt request signal or unmasked maskable interrupt request signal. 3. reset pin input, wdtres2, pocres, or lvires signal. 4. non-maskable interrupt request signal (nmi pin input, intwdt2 signal) or unmasked internal interrupt request signal from peripheral functions operable in stop mode. 5. the main clock (f x ) starts oscillating. after the oscillatio n stabilization time, the normal operation mode is set. if watchdog timer 2 overflows while the oscillati on stabilization time is being secured because of an abnormality (stoppage) of the main clock oscillation (f x ), the ring clock operation mode is set. 6. non-maskable interrupt request signal (nmi pin input, intwdt2 signal) or unmasked internal interrupt request signal from peripheral functions operable in idle mode. 7. reset pin input, wdtres2, pocres, or lvires signal. while the main clock (f x ) is oscillating, the standby mode can be released by the clmres signal (refer to note 9 ). 8. non-maskable interrupt request signal (nmi pin input, intwdt2 signal) or unmasked internal interrupt request signal from peripheral functions operable in sub-idle mode. 9. if the main clock oscillation (f x ) is abnormal (stops), watchdog time r 1 does not count the oscillation stabilization time. when watchdog timer 2 counts the ring clock and overflows, the ring clock operation mode is set. 10. non-maskable interrupt request signal (nmi pin input, intwdt2 signal) or unmasked internal interrupt request signal from peripheral functions operable in ring halt mode. remarks 1. wdtres1 signal: reset signal by watchdog timer 1 overflow 2. wdtres2 signal: reset signal by watchdog timer 2 overflow 3. pocres signal: reset signal by power-on-clear circuit 4. lvires signal: reset signal by low-voltage detector 5. clmres signal: reset si gnal by clock monitor .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 675 23.2 registers (1) power save control register (psc) this is an 8-bit register that controls the standby function. the stp bit of this register is used to specify the standby mode. the psc register is a special register that can be written to only in a special sequence (refer to 3.4.7 special registers ). this register can be read or written in 8-bit or 1-bit units. after reset, psc is cleared to 00h. nmi2m psc 0 nmi0m intm 0 0 stp 0 releasing standby mode note by intwdt2 signal enabled releasing standby mode note by intwdt2 signal disabled nmi2m 0 1 control of releasing standby mode note by intwdt2 signal releasing standby mode note by nmi pin input enabled releasing standby mode note by nmi pin input disabled nmi0m 0 1 control of releasing standby mode note by nmi pin input releasing standby mode note by maskable interrupt request signals enabled releasing standby mode note by maskable interrupt request signals disabled intm 0 1 control of releasing standby mode note by maskable interrupt request signals normal mode standby mode note stp 0 1 standby mode note setting after reset: 00h r/w address: fffff1feh < > < > < > < > note in this case, standby mode means the idle/s top mode; it does not in clude the halt mode. cautions 1. if the nmi2m, nmi0m, and intm bits, and the stp bit are set to 1 at the same time, the setting of nmi2m, nmi0m, and intm bits b ecomes invalid. if th ere is an unmasked interrupt request signal being held pending when the idle/stop mode is set, set the bit corresponding to the interrupt request signal (n mi2m, nmi0m, or intm) to 1, and then set the stp bit to 1. 2. when the idle/stop mode is set, set the psmr.psm bit and then set the stp bit to 1. .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 676 (2) power save mode register (psmr) this is an 8-bit register that contro ls the operation status in the power save mode and the clock operation. this register can be read or written in 8-bit or 1-bit units. after reset, psmr is cleared to 00h. xtstp subclock oscillator used subclock oscillator not used xtstp 0 1 specification of subclock oscillator use psmr 0 0 0 0 0 0 psm idle mode stop mode psm 0 1 specification of operation in standby mode after reset: 00h r/w address: fffff820h < > cautions 1. be sure to clear the xtstp bi t to 0 during subclock resonator connection. 2. be sure to clear bits 1 to 6 of the psmr register to 0. 3. the psm bit is valid only when the psc.stp bit is 1. .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 677 (3) oscillation stabilization time selection register (osts) the wait time until the oscill ation stabilizes after the stop mode is releas ed is controlled by the osts register. the osts register can be read or written in 8-bit units. after reset, osts is set to 01h. 0 osts 0 0 0 0 osts2 osts1 osts0 2 13 /f x 2 15 /f x 2 16 /f x 2 17 /f x 2 18 /f x 2 19 /f x 2 20 /f x 2 21 /f x osts2 0 0 0 0 1 1 1 1 selection of oscillation stabilization time osts1 0 0 1 1 0 0 1 1 osts0 0 1 0 1 0 1 0 1 5 mhz 10 mhz 0.819 ms 3.277 ms 6.554 ms 13.11 ms 26.21 ms 52.43 ms 104.9 ms 209.7 ms 4 mhz 2.048 ms 8.192 ms 16.38 ms 32.77 ms 65.54 ms 131.1 ms 262.1 ms 524.3 ms 1.638 ms 6.554 ms 13.11 ms 26.21 ms 52.43 ms 104.9 ms 209.7 ms 419.4 ms f x after reset: note r/w address: fffff6c0h note this register is set to 00h or 01h, dependin g on the setting of the mask option/option byte. for details, refer to chapter 30 mask option/option byte . cautions 1. the wait time following release of the stop mode does not include the time until the clock oscillation starts (?a? in the figure below) following release of the stop mode, regardless of whether the stop mode is released by re set or the occurrence of an interrupt request signal. a stop mode release voltage waveform of x1 pin v ss 2. be sure to clear bits 3 to 7 to 0. 3. the oscillation stabilization time is also inserted during external clock input. remark f x : main clock oscillation frequency .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 678 23.3 halt mode 23.3.1 setting and operation status the halt mode is set when a dedicated instruction (halt) is executed in the normal operation mode. in the halt mode, the clock oscillator continues operating. only clock s upply to the cpu is stopped; clock supply to the other on-chip peripheral functions continues. as a result, program execution is stopped, and the inte rnal ram retains the contents before the halt mode was set. the on-chip peripheral functions that are independent of instruction processing by the cpu continue operating. table 23-3 shows the operation status in the halt mode. the average power consumption of the system can be reduc ed by using the halt mode in combination with the normal operation mode for intermittent operation. cautions 1. insert five or more nop in structions after the halt instruction. 2. if the halt instruction is executed with an unmasked interrupt request signal held pending, the system shifts to the halt mode, but the halt mode is immediately released by the pending interrupt request signal. 23.3.2 releasing halt mode the halt mode is released by a non-maskable interrupt request signal (nmi pin input, intwdt1, intwdt2 signal), an unmasked maskable interrupt request signal, and reset signal (reset pin input, wdtres1, wdtres2, pocres, lvires, clmres signal). after the halt mode has been released, the normal operation mode is restored. (1) releasing halt mode by non-maskable interrupt request si gnal or unmasked maskable interrupt request signal the halt mode is released by a non-maskable interr upt request signal or an unmasked maskable interrupt request signal, regardless of the prio rity of the interrupt request. if the halt mode is set in an interrupt servicing routine, however, an interrupt request that is issued later is serviced as follows. (a) if an interrupt request signal with a priority lower th an that of the interrupt r equest currently being serviced is issued, only the halt mode is released, and that interrupt request signal is not acknowledged. the interrupt request signal itself is retained. (b) if an interrupt request signal with a priority higher than that of the interrupt request currently being serviced is issued (including a non-maskable interrupt request signal), the halt mode is released and that interrupt request signal is acknowledged. table 23-2. operation after releasing halt mode by interr upt request signal release source interrupt enabled (ei) st atus interrupt disabled (di) status non-maskable interrupt request signal ex ecution branches to the handler address maskable interrupt request signal execution branches to the handler address or the next instruction is executed the next instruction is executed (2) releasing halt mode by reset the same operation as the normal reset operation is performed. .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 679 table 23-3. operation status in halt mode when cpu is operating with main clock setting of halt mode item when subclock is not used when subclock is used cpu stops operation rom correction stops operation main clock oscillator oscillation enabled subclock oscillator ? .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 680 23.4 idle mode 23.4.1 setting and operation status the idle mode is set by clearing the psmr.psm bit to 0 and setting the psc.stp bit to 1 in the normal operation mode. in the idle mode, the clock oscillator continues operati on but clock supply to the cpu and other on-chip peripheral functions stops. as a result, program execution stops and the contents of the internal ram before the idle mode was set are retained. the cpu and other on-chip peripheral functions st op operating. however, the on -chip peripheral functions that can operate with the subclo ck, ring-osc clock, or an external clock continue operating. table 23-5 shows the operation status in the idle mode. the idle mode can reduce the power consumption more than the halt m ode because it stops the operation of the on-chip peripheral functions. the main clock oscill ator does not stop, so the normal operation mode can be restored without waiting for the oscillation stabilization ti me after the idle mode has been released, in the same manner as when the halt mode is released. caution insert five or more nop instru ctions after the instruction that st ores data in the psc register to set the idle mode. 23.4.2 releasing idle mode the idle mode is released by a non-maskable interr upt request signal (nmi pin input, intwdt2 signal), unmasked external interrupt request signal (intp0 to intp 7 pin input), unmasked internal interrupt request signal from the peripheral functions operable in the idle mode, or reset (e xcept wdtres1 signal). after the idle mode has been released, th e normal operation mode is restored. (1) releasing idle mode by non-maskable interrupt request si gnal or unmasked maskable interrupt request signal the idle mode is released by a non-maskable interru pt request signal or an unmasked maskable interrupt request signal, regardless of the priority of the interr upt request. if the idle mode is set in an interrupt servicing routine, however, an interrupt request that is issued later is serviced as follows. (a) if an interrupt request signal with a priority lower th an that of the interrupt r equest currently being serviced is issued, only the idle mode is released, and that interrupt request signal is not acknowledged. the interrupt request signal itself is retained. (b) if an interrupt request signal with a priority higher than that of the interrupt request currently being serviced is issued (including a non-maskable interrupt request signal), the idle mode is released and that interrupt request signal is acknowledged. table 23-4. operation after releasing id le mode by interr upt request signal release source interrupt enabled (ei) st atus interrupt disabled (di) status non-maskable interrupt request signal ex ecution branches to the handler address maskable interrupt request signal execution branches to the handler address or the next instruction is executed the next instruction is executed caution the interrupt request signal that is di sabled by setting the psc.nmi2m, psc.nmi0m, and psc.intm bits to 1 becomes invalid and idle mode is not released. .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 681 (2) releasing idle mode by reset the same operation as the normal reset operation is performed. table 23-5. operation status in idle mode (1/2) when cpu is operating with main clock setting of idle mode item when subclock is not used when subclock is used cpu stops operation rom correction stops operation main clock oscillator oscillation enabled subclock oscillator ? ? ? .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 682 table 23-5. operation status in idle mode (2/2) when cpu is operating with main clock setting of idle mode item when subclock is not used when subclock is used dma stops operation clock monitor (clm) operable power-on-clear (poc) operable low-voltage detection (lvi) operable regulator continues operation port function retains status before idle mode was set. external bus interface refer to 2.2 pin status . internal data the cpu registers, statuses, data, and all other internal data such as the contents of the internal ram are retained as they were before the idle mode was set. .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 683 23.5 stop mode 23.5.1 setting and operation status the stop mode is set when the psmr.psm bit is set to 1 and the psc.stp bit is set to 1 in the normal operation mode. in the stop mode, the subclock oscillat or continues operating but the main cl ock oscillator stops. clock supply to the cpu and the on-chip peri pheral functions is stopped. as a result, program execution is st opped, and the contents of the inter nal ram before the stop mode was set are retained. the on-chip peripheral functions that oper ate with the subclock oscillato r, ring-osc clock, or an external clock continue operating. table 23-7 shows the operation status in the stop mode. because the stop mode stops operation of the main clock oscillator, it reduc es the power consumption to a level lower than the idle mode. if the subclock oscillator, rin g-osc clock, and external clock are not used, the power consumption can be minimized with only leakage current flowing. caution insert five or more nop instru ctions after the instruction that st ores data in the psc register to set the stop mode. 23.5.2 releasing stop mode the stop mode is released by a non-maskable interr upt request signal (nmi pin input, intwdt2 signal), unmasked external interrupt request signal (intp0 to intp 7 pin input), unmasked internal interrupt request signal from the peripheral functions operable in the stop mode, or reset (except wdtres1 signal). after the stop mode has been released, the normal operat ion mode is restored after the oscillation stabilization time has been secured. (1) releasing stop mode by non-maskable interrupt request si gnal or unmasked maskable interrupt request signal the stop mode is released by a non-maskable interrupt request signal or an unmasked maskable interrupt request signal, regardless of the priority of the interr upt request. if the stop mode is set in an interrupt servicing routine, however, an interrupt request that is issued later is serviced as follows. (a) if an interrupt request signal with a priority lower th an that of the interrupt r equest currently being serviced is issued, only the stop mode is released, and that interrupt request signal is not acknowledged. the interrupt request signal itself is retained. (b) if an interrupt request signal with a priority higher than that of the interrupt request currently being serviced is issued (including a non-maskable interrupt request signal), the stop mode is released and that interrupt request signal is acknowledged. table 23-6. operation after releasing st op mode by interrupt request signal release source interrupt enabled (ei) st atus interrupt disabled (di) status non-maskable interrupt request signal ex ecution branches to the handler address maskable interrupt request signal execution branches to the handler address or the next instruction is executed the next instruction is executed caution the interrupt request signal that is di sabled by setting the psc.nmi2m, psc.nmi0m, and psc.intm bits to 1 becomes invalid and stop mode is not released. .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 684 (2) releasing stop mode by reset the same operation as the normal reset operation is performed. table 23-7. operation stat us in stop mode (1/2) when cpu is operating with main clock setting of stop mode item when subclock is not used when subclock is used cpu stops operation rom correction stops operation main clock oscillator oscillation stops subclock oscillator ? .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 685 table 23-7. operation stat us in stop mode (2/2) when cpu is operating with main clock setting of stop mode item when subclock is not used when subclock is used dma stops operation clock monitor (clm) stops operation power-on-clear (poc) operable low-voltage detection (lvi) operable regulator stops operation port function retains status before stop mode was set. external bus interface refer to 2.2 pin status . internal data the cpu registers, statuses, data, and all other internal data such as the contents of the internal ram are retained as they were before the stop mode was set. .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 686 23.5.3 securing oscillation stabilization time when stop mode is released when the stop mode is released, only the oscillation stabilization time set by the osts register elapses. if the stop mode has been released by reset, howeve r, the reset value of the osts register note elapses. the operation performed when the stop mode is releas ed by an interrupt request signal is shown below. figure 23-2. oscillation stabilization time oscillated waveform main clock oscillator stops oscillation stabilization time count main clock stop mode status interrupt request note the reset value of the osts register differs dependi ng on the setting of the ma sk option/option byte. for details, refer to chapter 30 mask option/option byte . caution for details of the osts register, refer to 23.2 (3) oscillation stabilization time selection register (osts). .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 687 23.6 subclock operation mode 23.6.1 setting and operation status the subclock operation mode is set when the pcc.ck3 bit is set to 1 in the normal operation mode. when the subclock operation mode is set, t he internal system clock is changed from the main clock to the subclock. when the pcc.mck bit is set to 1, the op eration of the main clock oscillator is stopped. as a result, the system operates only with the subclock. table 23-8 shows the operation stat us in subclock operation mode. in the subclock operation mode, the power consumption can be reduced to a level lower than in the normal operation mode because the subclock is used as the internal system clock. in addition, the power consumption can be further reduced to the level of the stop mode by st opping the operation of t he main clock oscillator. cautions 1. when manipulating the ck3 bit, do no t change the set values of the pcc.ck2 to pcc.ck0 bits (using a bit manipulation instruction to ma nipulate the bit is recommended). for details, refer to 6.3 (1) processor cl ock control register (pcc). 2. if the following conditions are not satisfied, change the ck2 to ck0 bits so that the conditions are satisfied and set the subclock operation mode. main clock (f xx ) > subclock (f xt : 32.768 khz) .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 688 table 23-8. operation status in subclock operation mode (1/2) operation status setting of subclock operation mode item when main clock is oscillati ng when main clock is stopped cpu operable rom correction operable subclock oscillator oscillation enabled ring-osc (f r ) operable interrupt controller operable 16-bit timer (tmp0) operable stops operation 16-bit timers (tm00 to tm03) oper able tm00, tm02, tm03: stop operation tm01: operable when intwt is selected as count clock and f xt is selected as count clock of wt 8-bit timers (tm50, tm51) operable ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 689 table 23-8. operation status in subclock operation mode (2/2) operation status setting of subclock operation mode item when main clock is oscillati ng when main clock is stopped dma operable clock monitor (clm) operable stops operation power-on-clear (poc) operable low-voltage detection (lvi) operable regulator continues operation port function settable external bus interface operable internal data settable .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 690 23.7 sub-idle mode 23.7.1 setting and operation status the sub-idle mode is set when the psmr.psm bit is cleared to 0 and the psc.stp bit is set to 1 in the subclock operation mode. in this mode, the clock oscillator continues operation bu t clock supply to the cpu and the other on-chip peripheral functions is stopped. as a result, program execution is st opped and the contents of the internal ram before the sub-idle mode was set are retained. the cpu and t he other on-chip peripheral functions are st opped. however, the on-chip peripheral functions that can operat e with the subclock, ring-osc clock, or an external clock continue operating. table 23-10 shows the operation status in the sub-idle mode. because the sub-idle mode stops oper ation of the cpu and other on-chip per ipheral functions, it can reduce the power consumption more than the subc lock operation mode. if the sub-idle mode is set after the main clock has been stopped, the power consumption can be reduced to a level as lo w as that in the stop mode. 23.7.2 releasing sub-idle mode the sub-idle mode is released by a non-maskable inte rrupt request signal (nmi pin input, intwdt2 signal), unmasked external interrupt request signal (intp0 to intp 7 pin input), unmasked internal interrupt request signal from the peripheral functions operable in the s ub-idle mode, or reset (except wdtres1 signal). when the sub-idle mode is released by an interrupt requ est signal, the subclock operation mode is set. if it is released by reset, the normal operation mode is restored. (1) releasing sub-idle m ode by non-maskable interrupt request signal or unmasked maskable interrupt request signal the sub-idle mode is released by a non-maskable interrupt request signal or an unmasked maskable interrupt request signal, regardless of the priority of t he interrupt request. if the sub-idle mode is set in an interrupt servicing routine, however, an interrupt request signal that is issued later is serviced as follows. (a) if an interrupt request signal with a priority lower th an that of the interrupt r equest currently being serviced is issued, only the sub-idle mode is released, and that interrupt request signal is not acknowledged. the interrupt request signal itself is retained. (b) if an interrupt request signal with a priority higher than that of the interrupt request currently being serviced is issued (including a non-maskable interrupt request signal), the sub-idle mode is released and that interrupt request signal is acknowledged. table 23-9. operation after releasing sub- idle mode by interrupt request signal release source interrupt enabled (ei) st atus interrupt disabled (di) status non-maskable interrupt request signal ex ecution branches to the handler address maskable interrupt request signal execution branches to the handler address or the next instruction is executed the next instruction is executed caution the interrupt request signal that is di sabled by setting the psc.nmi2m, psc.nmi0m, and psc.intm bits to 1 becomes invalid and sub-idle mode is not released. (2) releasing sub-id le mode by reset the same operation as the normal reset operation is performed. .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 691 table 23-10. operation status in sub-idle mode (1/2) operation status setting of sub-idle mode item when main clock is oscillati ng when main clock is stopped cpu stops operation rom correction stops operation subclock oscillator oscillation enabled ring-osc (f r ) operable interrupt controller stops operation 16-bit timer (tmp0) stops operation 16-bit timers (tm00 to tm03) tm00, tm02, tm03: stop operation tm01: operable when intwt is selected as count clock tm00, tm02, tm03: stop operation tm01: operable when intwt is selected as count clock and f xt is selected as count clock of wt 8-bit timers (tm50, tm51) ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 23 standby function preliminary user?s manual u16894ej1v0ud 692 table 23-10. operation status in sub-idle mode (2/2) operation status setting of sub-idle mode item when main clock is oscillati ng when main clock is stopped dma stops operation clock monitor (clm) operable stops operation power-on-clear (poc) operable low-voltage detection (lvi) operable regulator stops operation port function retains status before sub-idle mode was set. external bus interface refer to 2.2 pin status . internal data the cpu registers, statuses, data, and all other internal data such as the contents of the internal ram are retained as they were before the sub-idle mode was set. .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 693 chapter 24 reset function 24.1 overview the following reset functions are available. ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 694 24.3 register to check reset source (1) reset source flag register (resf) the resf register is a special regist er that can be written only by a co mbination of specific sequences (refer to 3.4.7 special registers ). the resf register indicates the source from which a reset signal is generated. this register can be read or written in 8-bit or 1-bit un its (however, only ?0? can be written to this register). reset pin input or reset by the poc circuit (pocres) clear s this register to 00h. t he default value differs if reset is effected from a source other than the reset pin. wdt1rf wdt2rf 0 1 not generated generated resf 0 0 wdt2rf 0 0 clmrf lvirf after reset: 00h note r/w address: fffff888h reset signal from watchdog timer 2 (wdtres2) wdt1rf 0 1 not generated generated reset signal from watchdog timer 1 (wdtres1) lvirf 0 1 not generated generated reset signal from low-voltage detector (lvires) clmrf 0 1 not generated generated reset signal from clock monitor (clmres) note this register is cleared to 00h when a reset is executed via the reset pin or poc circuit. when a reset is executed by the wdtres1 signal, wdtres2 signal, low-voltage detector (lvi), or clock monitor (clm), the reset fl ags of this register (wdt1rf, wdt2rf, clmrf, and lvirf bits) are set (with the other sources retained). caution only ?0? can be written to each bit of this register. if writ ing ?0? conflicts wit h setting the flag (occurrence of reset), setting the flag takes precedence. .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 695 24.4 reset sources the following six reset sources are available. ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 696 figure 24-2. hardware status on reset pin input oscillation stabilization time count initialized to f xx /8 operation overflow of oscillation stabilization time counter internal system reset signal (active low) analog delay (eliminated as noise) analog delay eliminated as noise reset f x f clk detected as reset figure 24-3. operation on power application oscillation stabilization time count initialized to f xx /8 operation overflow of oscillation stabilization time counter internal system reset signal (active low) reset f x ev dd f clk v dd analog delay .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 697 (1) elimination of digital noise on reset pin for the reset pin of the v850es/ kg1+, an analog/digital + analog noise eliminator can be selected. the digital noise eliminator is sele cted when the rnzc.rnzsel bit = 1. the digital noise is sampled using the main clock (f x ), and the number of samplings can be sele cted from 10 or 20 by the rnzc.smpsel bit. (a) reset noise elimination control register (rnzc) the rnzc register can be read or written in 8-bit units. after reset, rnzc is cleared to 00h. 0 smpsel 0 1 20 times 10 times rnzc 0 0 0 0 0 smpsel rnzsel note after reset : 00h r/w address: fffff860h selection of number of samplings rnzsel note 0 1 analog noise elimination only digital + analog noise elimination selection of noise eliminator of reset pin note if the sampling clock is stopped, only the analog noi se is eliminated automatically, regardless of the setting of the rnzsel bit. caution the rnzc register can be set (written) only on ce after the reset signal is released. even if the register is written two or more ti mes, the first value written to it is not updated. to change the set value of the register, input the reset signal. .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 698 figure 24-4. sampling operation timing (20 times) oscillation stabilization time count period set by osts register internal reset signal (active low) reset signal f x 1 2 19 20 analog delay analog delay digital noise elimination <1> digital noise is eliminated when the rnzc.rnzsel bit = 1. <2> the reset pin is always sampled at the rising edge of the sampling clock (f x ). <3> if the reset pin goes low and is detected as lo w over the entire sampling timing, it is detected as an internal reset signal. because the analog noise eliminator is activated after digital noise has been eliminated, the internal reset signal is detected after analog delay. <4> when the internal reset signal is detected, t he rnzc register is initialized, so only the analog noise eliminator can be selected. (b) operation when sampling clock is stopped if the sampling clock (f x ) stops when the digital + analog noise eliminator is selected, input to the reset signal is not received. therefore, only the anal og noise eliminator is automatically selected. only the analog noise eliminator is automat ically selected during the following periods. ? ? , n = 20 t = 5 mhz , n = 10 operation t wrsl < ( n ? ) t t wrsl < 1.9 < 1.8 ( n ? ) t < t wrsl < nt 1.9 t wrsl < 2.0 t wrsl < 2.0 t wrsl 2.0 t wrsl 2.0 t wrsl detected as reset remark the noise on the reset pin is eliminated by a val ue that takes the value show n in this table and the analog delay value into consideration. .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 699 24.4.2 reset operati on by wdtres1 signal if a reset operation mode in which reset is effected when watchdog timer 1 overflows is set, the system is reset when watchdog timer 1 overflows (when the wdtres1 signal is generated), and each hardware unit is initialized to a specific status. after watchdog timer 1 has overflowed, the system is reset for a specific duration of time (f clk : 12 clocks) and then automatically released from the reset status. after releas e of the reset status, the cp u starts program execution. note that, because the main clock oscillator continues operating even during the re set period, the oscillation stabilization time is not secured. the following table shows the status of each hardware unit durin g the period of reset that is effected by the wdtres1 signal and after release of the reset status. table 24-3. hardware status on occurrence of wdtres1 signal item during reset after reset main clock oscillator (f x ) oscillation continues subclock oscillator (f xt ) oscillation continues ring-osc (f r ) oscillation continues peripheral clock (f xx to f xx /1024) operation stops operation starts internal system clock (f clk ) oscillation continues (initialized to f xx /8) cpu clock (f cpu ) oscillation continues (initialized to f xx /8) watchdog timer 1 clock (f xw ) operation continues internal ram undefined if writing data to ram (by cpu or dma) and reset input conflict (data is damaged). otherwise value imm ediately before reset input is retained. i/o lines (p00) low-level output i/o lines (ports other than p00) high impedance on-chip peripheral i/o registers initialized to specified status watchdog timer 2 operation st ops operation starts (f r ) other on-chip peripheral fu nctions operation stops o peration can be started figure 24-5. timing of reset operation by watchdog timer 1 initialized to f xx /8 operation f clk : 12-clock width internal system reset signal (active low) wdtres1 signal (active low) f x f clk .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 700 24.4.3 reset operati on by wdtres2 signal if a reset operation mode in which reset is effected when watchdog timer 2 overflows is set, the system is reset when watchdog timer 2 overflows (when the wdtres2 signal is generated), and each hardware unit is initialized to a specific status. after watchdog timer 2 has overflowed, the system is reset for a specific duration of time (equivalent to analog delay) and then automatically released fr om the reset status. after release of the reset status, the oscillation stabilization time of the main clock oscillator is secured, and then the cpu st arts program execution. note that, because the main clock oscillator stops during t he reset period, the oscillation stabilization time must be secured. the oscillation stabilization ti me is determined by the default value of the osts register (for the oscillation stabilization time, refer to 23.2 (3) oscillation stabilizati on time selection register (osts) and chapter 30 mask option/option byte ). the status of each hardware unit duri ng the period of reset effected by the wdtres2 signal and after release of the reset status is the same as when re set is effected by the reset pin input. for details, refer to table 24-1 hardware status on reset pin input . the following figure shows the timing of the reset operation by the wdtres2 signal. figure 24-6. timing of reset operation by watchdog timer 2 oscillation stabilization time count initialized to f xx /8 operation overflow of oscillation stabilization time counter internal system reset signal (active low) wdtres2 signal (active low) f x f clk analog delay .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 701 24.4.4 power-on-clear reset operation the supply voltage (v dd ) and detection voltage (v poc ) are compared. when v dd < v poc , the system is reset and each hardware unit is initialized to a specific status. the detection voltage (v poc ) is 2.6 v .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 702 figure 24-7. reset timing by power-on-clear circuit oscillation stabilization time count initialized to f xx /8 operation overflow of oscillation stabilization time counter internal system reset signal (active low) pocres signal (active low) f x f clk v dd v poc response time response time .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 703 figure 24-8. reset timing on power application oscillation stabilization time count initialized to f xx /8 operation overflow of oscillation stabilization time counter internal system reset signal (active low) pocres signal (active low) f x v dd v poc f clk response time .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 704 24.4.5 reset operation by low-voltage detector if a mode in which the internal reset signal (lvires) is to be generated by the low- voltage detector is set, the supply voltage (v dd ) and detection voltage (v lvi ) are compared. when v dd < v lvi , the system is reset and each hardware unit is initializ ed to a specific status. while v dd < v lvi , the system is reset. reset is released when v dd .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 705 24.4.6 reset operation by clock monitor if the main clock is monitored using the sampling clock (ring-osc: f r ) and if it is detected that the main clock has stopped when the clock monitor operation is enabled, the syst em is reset and each hardware unit is initialized to a specific status. after it is detected that the main clo ck stops, the system is reset for the durat ion of a specific time (equivalent to analog delay), and then the reset status is automatically released. after rele ase of the reset status, the timer for oscillation stabilization does not perform its counting operation because the main clock is stopped. if watchdog timer 2, which starts by default, overflows, the cpu starts program execution with ring-osc (f r ). the status of each hardware unit duri ng the period of reset effected by the clmres signal and after release of the reset status is shown below. for the timing of reset by t he clock monitor, refer to figure 25-4 . table 24-5. hardware status duri ng reset operation by clock monitor item during reset after reset main clock oscillator (f x ) oscillation stops oscillation remains stopped subclock oscillator (f xt ) oscillation continues ring-osc (f r ) oscillation stops oscillation starts peripheral clock (f xx to f xx /1024) operation stops operation remains stopped because f x is stopped internal system clock (f clk ) operation stops operation starts (f r ) after overflow of watchdog timer 2 cpu clock (f cpu ) operation stops operation starts (f r ) after overflow of watchdog timer 2 watchdog timer 1 clock (f xw ) operation stops operation remains stopped because f x is stopped cpu initialized program execution starts after overflow of watchdog timer 2 internal ram undefined if writing data to ram (by cpu or dma) and reset input conflict (data is damaged). otherwise value imm ediately before reset input is retained. i/o lines (p00) low-level output i/o lines (ports other than p00) high impedance on-chip peripheral i/o registers initialized to specified status watchdog timer 2 operation stops operation starts (f r only). however, wdtres2 is not generated if watchdog timer 2 overflows before cpu execution. other on-chip peripheral fu nctions operation stops operation cannot be started because f x is stopped. however, the peripheral functions that operate on f xt , f r , or external clock can operate (for details, refer to table 25-2 ). .com .com .com .com 4 .com u datasheet
chapter 24 reset function preliminary user?s manual u16894ej1v0ud 706 24.5 reset output function the p00/toh0 pin of the v850es/kg1+ c an be used as a dummy reset output pin. the p00 pin is set in the output port mode (pm0.pm00 bit = 0) and outputs a low level (p0.p00 bit = 0) when the reset signal is generated. to rel ease the reset output (low-level output .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 707 chapter 25 clock monitor 25.1 function the clock monitor samples the main clock by using the on-chip ring-osc clock and generates a reset signal (clmres) when oscillation of the main clock is stopped. after reset is released, t he cpu operates on ring-osc. once the operation of the clock monitor has been enabled by the clm.clme bit, it can be stopped only by reset. the clock monitor automatically stops under the following conditions. ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 25 clock monitor preliminary user?s manual u16894ej1v0ud 708 (2) ring-osc mode register (rcm) the rcm register is an 8-bit register t hat sets the operation mode of ring-osc. this register can be read or written in 8-bit or 1-bit units. after reset, rcm is cleared to 00h. 0 rcm 0 0 0 00 0 rstop ring-osc oscillating ring-osc stopped rstop 0 1 oscillation/stop of ring-osc after reset: 00h r/w address: fffff80ch < > caution the setting of the rcm register is valid when stopping oscillation of ring-osc by software is enabled by the mask option/option byte. for details, refer to chapter 30 mask option/ option byte. .com .com .com .com 4 .com u datasheet
chapter 25 clock monitor preliminary user?s manual u16894ej1v0ud 709 25.3 operation the clock monitor start and stop conditions are as follows. set the clm.clme bit to 1 ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 25 clock monitor preliminary user?s manual u16894ej1v0ud 710 (a) operation when main cl ock oscillation is stopped if oscillation of the main clock is stopped when the clme bit = 1, the clmres signal is generated as shown in figure 25-1. figure 25-1. when oscillation of main clock is stopped 4 ring-osc clocks main clock ring-osc clock clmres signal (active low) (b) operation in stop mode a nd after stop mode is released if the stop mode is set when the clme bit = 1, t he monitor operation is st opped in the stop mode and while the oscillation stabilization time is being counted. the monitor operation is automatically started after the oscillation stabilization time has elapsed. figure 25-2. operation in stop mode and after stop mode is released clock monitor status during monitoring monitor stops during monitoring clme bit ring-osc clock main clock cpu operation normal operation stop mode oscillation stabilization time normal operation oscillation stops oscillation stabilization time (set by osts register) .com .com .com .com 4 .com u datasheet
chapter 25 clock monitor preliminary user?s manual u16894ej1v0ud 711 (c) operation when main clock is stopped (arbitrary) if the main clock is stopped by setting the pcc.mck bit to 1 while the subclock is operating (pcc.cls bit = 1), the monitor operation is stopped until the main clock operates (cls bit = 0). the monitor operation is automatically started when the main clock starts operating. figure 25-3. operation when main clock is stopped (arbitrary) clock monitor status during monitoring monitor stops monitor stops during monitoring clme bit ring-osc clock main clock cpu operation oscillation stops subclock operation main clock operation oscillation stabilization time (set by osts register) oscillation stabilization time counted by software mck bit = 1 (d) operation when cpu operates on ring-osc clock (ccls.cclsf bit = 1) the monitor operation is not started even if the cl me bit is set to 1 when the cclsf bit is 1. .com .com .com .com 4 .com u datasheet
chapter 25 clock monitor preliminary user?s manual u16894ej1v0ud 712 25.4 ring clock operation mode 25.4.1 setting and operation status the ring clock operation mode is set by the clock moni tor function when the main clock oscillation frequency (f x ) is abnormal (stopped). in the ring clock operation mode, ring-osc (f r ) is supplied as the internal system clock (f clk ) and cpu clock (f cpu ). because the operating clock is ring-osc (f r ), it is recommended to reset the syst em once to set it in the normal operation mode. because the main clock oscillator (f x ) is stopped, only the internal peripheral functions that can operate on the subclock, ring clock, or external clock can continue operating. table 25-2 shows the operation status in the ring clock operation mode. 25.4.2 releasing ring clock operation mode the ring clock operation mode is replaced by the normal operation mode in which the main clock (f x ) oscillates when the system is reset. the ring clock operation mode cannot be released by software. figure 25-4. reset timing of clock monitor count operation or count stopped f x f clk f r clmres signal (active low) wdt2 count clme bit clmrf bit count operation continues stopped count operation f r operation oscillation stabilization time secured (count operation stops) main clock operation stopped watchdog timer 2 overflow (wdtres2 does not occur) watchdog timer 2 count operation starts main clock stop detected program fetch started remark software cannot be used to restore the normal ope ration mode from the ring clock operation mode. after reset (generation of the reset, wdtres2, pocres, or lvires signal), the normal operation mode can be restored only if the main clock (f x ) oscillates correctly. .com .com .com .com 4 .com u datasheet
chapter 25 clock monitor preliminary user?s manual u16894ej1v0ud 713 table 25-2. operation status in ring clock operation mode operation status setting of ring clock operation mode item when subclock is not used when subclock is used rom correction operable interrupt controller operable 16-bit timer (tmp0) stops operation 16-bit timers (tm00 to tm03) stops operation tm00, tm02, tm03: stop operation tm01: operable when intwt is selected as count clock and f xt is selected as count clock of wt 8-bit timers (tm50, tm51) operable when ti5m is selected as count clock operable when ti5m is selected as count clock or when inttm010 is selected as count clock and tm01 is enabled in ring clock operation mode timer h (tmh0) stops operation timer h (tmh1) operable when f r /2048 is selected as count clock watch timer stops operation operable when f xt is selected as count clock watchdog timer 1 stops operation watchdog timer 2 operable when f r is selected as count clock operable csi00, csi01 operable when sck0m input clock is selected as operation clock csia0, csia1 stops operation i 2 c0 note stops operation uart0 operable when asck0 is selected as count clock serial interface uart1, uart2 stops operation key interrupt function operable a/d converter stops operation d/a converter operable real-time output operable when inttm5m is selected as real-t ime output trigger and tm5m is enabled in ring clock operation mode dma function operable clock monitor stops operation power-on-clear operable low-voltage detector operable regulator operable port function operable external bus interface operable note only in the .com .com .com .com 4 .com u datasheet
chapter 25 clock monitor preliminary user?s manual u16894ej1v0ud 714 25.5 ring halt mode 25.5.1 setting and operation status the ring halt mode is set when a dedicated instruction (h alt instruction) is executed in the ring clock operation mode. in the ring halt mode, the ring-osc oscillator continues operating. only clock supply to the cpu is stopped; clock supply to the other on-chip peripheral functions continues. as a result, program execution is stopped, and the inte rnal ram retains the contents before the ring halt mode was set. the on-chip peripheral functions that are in dependent of instruction processing by the cpu continue operating. the main clock oscillator (f x ) stops but the on-chip peripheral functions that can operate on the subclock (f xt ), ring-osc clock (f r ), or external clock continue operating. table 25-4 shows the operation status in the ring halt mode. cautions 1. insert five or more nop in structions after the halt instruction. 2. if the halt instruction is executed with an unmasked interrupt requ est signal held pending, the system shifts to the ring halt mode, but th e ring halt mode is immediately released by the pending interrupt request signal. 25.5.2 releasing ring halt mode when the ring halt mode is re leased by an interrupt requ est signal, the ring clock operation mode is set. when the ring halt mode is released by reset, the norma l operation mode is restored if the main clock (f x ) oscillates correctly. (1) releasing ring halt mode by non- maskable interrupt request signal or unmasked maskable interrupt request signal the ring halt mode is released by a non-maskable interrupt request signal or an unmasked maskable interrupt request signal, regardless of the priority of the interrupt request. if the ring halt mode is set in an interrupt servicing routine, however, an interrupt request that is issued later is serviced as follows. (a) if an interrupt request signal with a priority lower t han that of the interrupt request currently being serviced is issued, the ring halt mode is released, but that interrupt request signal is not acknowledged. the interrupt request signal itself is retained. (b) if an interrupt request signal with a priority higher than that of the interrupt reques t currently being serviced is issued (including a non-maskable interrupt request signal), the ring halt mode is released and that interrupt request signal is acknowledged. table 25-3. operation after releasing ring halt mode by interrupt request signal release source interrupt enabled (ei) st atus interrupt disabled (di) status non-maskable interrupt request signal ex ecution branches to the handler address maskable interrupt request signal execution branches to the handler address or the next instruction is executed the next instruction is executed .com .com .com .com 4 .com u datasheet
chapter 25 clock monitor preliminary user?s manual u16894ej1v0ud 715 (2) releasing ring halt mode by reset the same operation as the normal reset operation is performed. table 25-4. operation status in ring halt mode operation status setting of ring halt mode item when subclock is not used when subclock is used cpu stops operation rom correction stops operation main clock oscillator stops operation subclock oscillator ? .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 716 chapter 26 low-voltage detector 26.1 function the low-voltage detector (lvi) has the following functions. ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 26 low-voltage detector preliminary user?s manual u16894ej1v0ud 717 26.3 registers the low-voltage detector is controlle d by the following two registers. ? ? .com .com .com .com 4 .com u datasheet
chapter 26 low-voltage detector preliminary user?s manual u16894ej1v0ud 718 (2) low-voltage detection level selection register (lvis) the lvis register is an 8-bit register t hat selects the low-voltage detection level. the lvis register can be read or written in 8-bit unit s. if the lvim.lvion and lvim.lvimd bits = 11, however, the lvis register cannot be rewritten until the reset signal (lvires) is generated. the lvis register is reset to 00h by a reset source other than the low-voltage detector. the lvis register holds its value when reset is effected by the low-voltage detector. 0 lvis2 0 0 0 0 1 1 1 lvis1 0 0 1 1 0 0 1 other than above lvis0 0 1 0 1 0 1 0 4.3 v 0.2 v 4.1 v 0.2 v 3.9 v 0.2 v 3.7 v 0.2 v 3.5 v 0.2 v 3.3 v 0.15 v 3.1 v 0.15 v setting prohibited lvis 0 0 0 0 lvis2 lvis1 lvis0 after reset: 00h note r/w address: fffff891h detection level note the lvis register holds its value when rese t is effected by the low-voltage detector. caution be sure to clear bits 7 to 3 to 0. .com .com .com .com 4 .com u datasheet
chapter 26 low-voltage detector preliminary user?s manual u16894ej1v0ud 719 26.4 operation the low-voltage detector can be used in the following two modes. ? ? .com .com .com .com 4 .com u datasheet
chapter 26 low-voltage detector preliminary user?s manual u16894ej1v0ud 720 (2) interrupt operation (intlvi) <1> mask the intlvi interrupt (lvimk bit = 1). <2> set the detection voltage (v lv i ) using the lvis.lvis2 to lvis.lvis0 bits. <3> set the lvim.lvion bit to 1 (enables low-voltage detector operation). <4> use software to instigate a wait of at least 0.2 ms. <5> confirm that the lvim.lvif bit is cleared to 0 (supply voltage (v dd ) > detection voltage (v lv i )). when the lvif bit is set to 1, use software to in stigate a wait until the lvif bit is cleared to 0. <6> clear the intlvi interrupt request flag (lviif bit) to 0. <7> release the intlvi interrupt mask status (lvimk bit = 0). caution <1> must always be executed. when th e lvimk bit = 0, an interrupt (intlvi) may occur immediately after the processing in <3>. clear the lvion bit to 0. figure 26-2. timing of intlvi interrupt generation by low-voltage detector supply voltage ( v dd ) low-voltage detector detection voltage ( v lvi ) power-on-clear circuit detection voltage ( v poc ) lvi detection signal (active low) lvion bit intlvi signal generated pocres signal generated intlvi signal generated .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 721 chapter 27 power-on-clear circuit 27.1 function the power-on-clear (poc) circuit has the following functions. ? ? ? .com .com .com .com 4 .com u datasheet
chapter 27 power-on-clear circuit preliminary user?s manual u16894ej1v0ud 722 27.3 operation the power-on-clear circuit compares the supply voltage (v dd ) and detection voltage (v poc ), and generates a reset signal (pocres) when v dd < v poc . figure 27-2. operation of power-on-clear circuit supply voltage ( v dd ) power-on-clear circuit detection voltage ( v poc ) 2.5 v pocres signal (active low) .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 723 chapter 28 regulator 28.1 overview the v850es/kg1+ includes a regulator to reduce the power consumption and noise. this regulator supplies a stepped-down v dd power supply voltage to the oscillator block and internal logic circuits (except the a/d converter, d/a converte r, and output buffer). the regulator out put voltage is set to 3.6 v (typ.). figure 28-1. regulator ev dd i/o buffer (normal port) 2.7 to 5.5 v bidirectional level shifter bv dd i/o buffer 2.7 to 5.5 v regulator a/d converter 2.7 to 5.5 v d/a converter 2.7 to 5.5 v bv dd av ref0 av ref1 v pp v dd ev dd regc flash memory main/sub oscillator internal digital circuits 3.6 v (typ.) caution use the regulator with a setting of v dd = ev dd = av ref0 = av ref1 ? ? ? .com .com .com .com 4 .com u datasheet
chapter 28 regulator preliminary user?s manual u16894ej1v0ud 724 figure 28-2. regc pin connection (a) when regc = v dd reg input voltage = 2.7 to 5.5 v voltage supply to oscillator/internal logic = 2.7 to 5.5 v v dd regc (b) when connecting regc pin to v ss via a capacitor reg input voltage = 4.0 to 5.5 v voltage supply to oscillator/internal logic = 3.6 v v dd regc 10 f (recommended) .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 725 chapter 29 rom correction function 29.1 overview the rom correction function is used to replace part of the program in the internal rom with the program of an external memory or the internal ram. by using this function, program bugs foun d in the internal rom can be corrected. up to four addresses can be specified for correction. figure 29-1. block diag ram of rom correction instruction address bus block replacing bug with dbtrap instruction instruction data bus internal rom dbtrap instruction generation block correction address register n (coradn) correction control register (corenn bit) comparator remark n = 0 to 3 .com .com .com .com 4 .com u datasheet
chapter 29 rom correction function preliminary user?s manual u16894ej1v0ud 726 29.2 control registers 29.2.1 correction address regist ers 0 to 3 (corad0 to corad3) these registers are used to set the firs t address of the program to be corrected. the program can be corrected at up to four places because four coradn registers are provided. the coradn register can be read or writte n in 32-bit units. if the higher 16 bits of the coradn register are used as the coradnh register, and the lower 16 bits as the coradnl register, these registers can be read or written in 16-bit units. after reset, coradn is cleared to 00000000h. set correction addresses in the following ranges. pd70f3311, 70f3311y (128 kb): 0000000h to 001fffeh pd703313, 703313y, 70f3 313, 70f3313y (256 kb): 0000000h to 003fffeh correction address fixed to 0 0 coradn (n = 0 to 3) after reset: 00000000h r/w address: refer to table 29-1 31 16 17 19 20 1 0 note correction address fixed to 0 0 coradn (n = 0 to 3) 31 17 18 19 20 1 0 note (a) 128 kb (b) 256 kb note be sure to clear these bits to 0. table 29-1. coradn address address register name address register name fffff840h corad0 fffff848h corad2 fffff840h corad0l fffff848h corad2l fffff842h corad0h fffff84ah corad2h fffff844h corad1 fffff84ch corad3 fffff844h corad1l fffff84ch corad3l fffff846h corad1h fffff84eh corad3h .com .com .com .com 4 .com u datasheet
chapter 29 rom correction function preliminary user?s manual u16894ej1v0ud 727 29.2.2 correction control register (corcn) this register disables or enables the correction oper ation at the address specifie d by the coradn register. each channel can be enabled or disabled by this register. this register can be read or written in 8-bit or 1-bit units. after reset, corcn is cleared to 00h. 0 disabled enabled corenn 0 1 correction operation enable/disable corcn 0 0 0 coren3 coren2 coren1 coren0 after reset: 00h r/w address: fffff880h < > < > < > < > remark n = 0 to 3 table 29-2. correspondence between corcn register bits and coradn registers corcn register bit corresponding coradn register coren3 corad3 coren2 corad2 coren1 corad1 coren0 corad0 29.3 rom correction operation and program flow <1> if the address to be corrected and the fetch address of t he internal rom match, the fetch code is replaced by the dbtrap instruction. <2> when the dbtrap instruction is execut ed, execution branches to address 00000060h. <3> software processing after branching causes the result of rom correction to be judged (the fetch address and rom correction operation are confirmed) and exec ution to branch to the correction software. <4> after the correction software has been executed, the return address is set, and return processing is started by the dbret instruction. cautions 1. the software that performs <3> a nd <4> must be executed in the internal ram. 2. when setting an address to be corrected to the coradn register, clear the higher bits to 0 in accordance with the capacity of the internal rom. 3. the rom correction function cannot be used to correct the data of the internal rom. it can only be used to correct instructi on codes. if rom correction is u sed to correct data, that data is replaced with the dbtrap instruction code. .com .com .com .com 4 .com u datasheet
chapter 29 rom correction function preliminary user?s manual u16894ej1v0ud 728 figure 29-2. rom correction operation and program flow reset & start fetch address = coradn? coradn = dbpc ? .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 729 chapter 30 mask option/option byte 30.1 mask option (mask rom versions) the mask rom versions ( pd703313 and 703313y) have the following mask options. ? connection of pull-up resistor to p36 to p39 pins ? enabling/disabling stopping ring-osc by software ? shortening oscillation stabilization time of main clock oscillation after release of reset (1) connection of pull-up resistor to p36 to p39 pins pumn connection of pull-up resistor to port mn 0 not connected 1 connected remark mn = 36 to 39 (2) enabling/disabling stop ping ring-osc by software ringstp control of stopping ring-osc by software 0 can be stopped by software 1 setting invalid by software depending on whether the option to enable/disable stopping of ring-osc by software is set or not, the operation differs as follows. table 30-1. option to enable/disable stopping of ring-osc by software ringstp = 0 (can be stopped) ringstp = 1 (setting invalid) ring-osc ring-osc: can be stopped. rcm.rstop bit can be set. ring-osc: cannot be stopped. setting of rstop bit is invalid. count operation operation can be stopped by wdtm2.wdcs24 bit. operation cannot be stopped. input clock the following clock can be selected by the wdtm2 register. ? ring-osc: f r /8 ? subclock: f xt fixed to ring-osc (f r /8) wdt2 operation mode the following mode can be selected by the wdtm2 register. ? nmi interrupt mode (intwdt2) ? reset mode (wdtres2) fixed to reset mode (wdtres2) .com .com .com .com 4 .com u datasheet
chapter 30 mask option/option byte preliminary user?s manual u16894ej1v0ud 730 (3) shortening oscillation stabili zation time of main clock osc illation after release of reset option to shorten oscillation stabilization time of main clock oscillation after release of reset osts0 (default value of osts register) oscillation stabilization time 0 shorten oscillation stabilization time. 00h 2 13 /f x 1 do not shorten oscillation stabilization time. 01h 2 15 /f x 30.2 option byte (flash memory versions) the flash memory versions ( pd70f3311, 70f3311y, 70f3313, and 70f331 3y) can realize the mask options of the mask rom version by using an option byte (except the pull-up resistor option). the option byte is stored in address 0 00007ah of the internal flash memory (internal rom area) as 8-bit data. ? osts0 note 1 shorten oscillation stabilization time (default value of osts register = 00h) do not shorten oscillation stabilization time (default value of osts register = 01h) ?? osts0 ?? ? ringstp address: 0000007ah option to shorten oscillation stabilization time of main clock oscillation after release of reset ringstp note 2 0 1 can be stopped by software cannot be stopped by software option to enable/disable stopping ring-osc by software 0 1 notes 1. for details of the option, refer to 30.1 (3) shortening oscillation st abilization time of main clock oscillation after release of reset . 2. for details of t he option, refer to table 30-1 option to enable/disable stopping of ring-osc by software . .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 731 chapter 31 flash memory the following products are the flash me mory versions of the v850es/kg1+. caution there are differences in noise immunity a nd noise radiation between th e flash memory and mask rom versions. when pre-producing and applicati on set with the flash memory version and then mass-producing it with the mask rom version, be sure to conduct sufficient evaluation for the commercial samples (not engineering samples) of the mask rom version. for the electrical specifications related to the flash memory rewriting, refer to chapter 32 electrical specifications (target). ? ? { for altering software after the v850es/kg 1+ is soldered onto the target system. { for data adjustment when starting mass production. { for differentiating software according to the specif ication in small scale production of various models. { for facilitating inventory management. { for updating software after shipment. 31.1 features { 4-byte/1-clock access (when instruction is fetched) { capacity: 128/256 kb { write voltage: erase/write with a single power supply { rewriting method ? ? { flash memory write prohibit f unction supported (security function) { safe rewriting of entire flash memory area by self programming using boot swap function { interrupts can be acknowledged during self programming. .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 732 31.2 memory configuration the 128/256 kb internal flash memory area is divided in to 64/128 blocks and can be programmed/erased in block units. all the blocks can also be erased at once. when the boot swap function is used, the physical memory (blocks 0 to 3) located at the addresses of boot area 0 is replaced by the physical memory (blocks 4 to 7) locate d at the addresses of boot area 1. for details of the boot swap function, refer to 31.5 rewriting by self programming . figure 31-1. flash memory mapping block 0 (2 kb) block 1 (2 kb) block 2 (2 kb) block 3 (2 kb) block 5 (2 kb) block 6 (2 kb) block 7 (2 kb) block 8 (2 kb) block 4 (2 kb) block 63 (2 kb) block 125 (2 kb) block 127 (2 kb) block 126 (2 kb) block 0 (2 kb) block 1 (2 kb) block 2 (2 kb) block 3 (2 kb) block 5 (2 kb) block 6 (2 kb) block 7 (2 kb) block 8 (2 kb) block 4 (2 kb) block 63 (2 kb) use prohibited external memory area (2 mb) external memory area (1 mb) internal flash memory area (256/128 kb) use prohibited boot area 0 note (8 kb) internal ram area (60 kb) on-chip peripheral i/o area (4 kb) boot area 1 note (8 kb) 3fff fffh 3fec 000h 3feb fffh 003f fffh 003f 800h 003f 7ffh 003f 000h 003e fffh 003e 800h 003e 7ffh 0020 000h 001f fffh 0005 000h 0004 fffh 0004 800h 0004 7ffh 0003 800h 0003 7ffh 0003 000h 0002 fffh 0002 800h 0002 7ffh 0001 800h 0001 7ffh 0001 000h 0000 fffh 0000 000h 0000 800h 0000 7ffh 0002 000h 0001 fffh 0004 000h 0003 fffh 3ff0 000h 3fef fffh 0400 000h 03ff fffh 0200 000h 01ff fffh 0100 000h 00ff fffh 0000 000h note boot area 0 (blocks 0 to 3): boot area boot area 1 (blocks 4 to 7): area used to replace boot area via boot swap function .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 733 31.3 functional outline the internal flash memory of the v850es/kg1+ can be re written by using the rewrit e function of the dedicated flash programmer, regardless of whether the v850es/kg1+ has already been mounted on the target system or not (on-board/off-board programming). in addition, a security function that prohi bits rewriting the user program written to the internal flash memory is also supported, so that the program c annot be changed by an unauthorized person. the rewrite function using the user program (self programmi ng) is ideal for an application where it is assumed that the program is changed after production/sh ipment of the target syst em. a boot swap function t hat rewrites the entire flash memory area safely is also supported. in addition, interrupt servicing is supported during self programming, so that the flash memory can be rewritten und er various conditions, such as while communicating with an external device. table 31-1. rewrite method rewrite method functional outline operation mode on-board programming flash memory can be rewritten after the device is mounted on the target system, by using a dedicated flash programmer. off-board programming flash memory can be rewritten before the device is mounted on the target system, by using a dedicated flash programmer and a dedicated program adapter board (fa series). flash memory programming mode self programming flash memory can be rewritten by executing a user program that has been written to the flash memory in advance by means of on-board/off- board programming. (during self-programming, instructions cannot be fetched from or data access cannot be made to the internal flash memory area. therefore, the rewrite program must be transferred to the internal ram or external memory in advance). normal operation mode remark the fa series is a product of na ito densei machida mfg. co., ltd. .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 734 table 31-2. basic functions support ( { : supported, { { chip erasure the contents of the entire memory area are erased all at once. { { { verify/checksum data read from the flash memory is compared with data transferred from the flash programmer. { { { security setting use of the block erase command, chip erase command, and program command can be prohibited. { { : executable, { program command: { chip erase command prohibit execution of block erase and chip erase commands on all the blocks is prohibited. once prohibition is set, setting of prohibition cannot be initialized because the chip erase command cannot be executed. block erase command: { program command prohibit write and block erase commands on all the blocks are prohibited. setting of prohibition can be initialized by execution of the chip erase command. block erase command: { program command: .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 735 31.4 rewriting by dedicated flash programmer the flash memory can be rewritten by using a dedicated flash programmer after the v850es/kg1+ is mounted on the target system (on-board pr ogramming). the flash memory can also be re written before the device is mounted on the target system (off-board progr amming) by using a dedicated program adapter (fa series). 31.4.1 programming environment the following shows the environment required for writi ng programs to the flash memory of the v850es/kg1+. figure 31-2. environment required for writing programs to flash memory host machine rs-232c dedicated flash programmer v850es/kg1+ flmd1 v dd v ss reset uart0/csi00 pg-fp4 (flash pro4) cxxxxxx bxxxxx axxxx xxx yyy x x x x x x x x x x x x x x x xxxx yyyy statve flmd0 usb a host machine is required for controlling the dedicated flash programmer. uart0 or csi00 is used for the in terface between the dedicated flash programmer and the v850es/kg1+ to perform writing, erasing, etc. a dedicated program adapter (fa series) is required for off-board writing. remark the fa series is a product of naito densei machida mfg. co., ltd. .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 736 31.4.2 communication mode communication between the dedicated flash programm er and the v850es/kg1+ is performed by serial communication using the uart0 or csi 00 interfaces of the v850es/kg1+. (1) uart0 transfer rate: 9,600 to 153,600 bps figure 31-3. communication with dedicated flash programmer (uart0) dedicated flash programmer v850es/kg1+ v dd v ss reset txd0 rxd0 flmd1 flmd1 flmd0 flmd0 v dd gnd reset rxd txd x1 x2 clk pg-fp4 (flash pro4) cxxxxxx bxxxxx axxxx xxx yyy x x x x x x x x x x x x x x x xxxx yyyy statve (2) csi00 serial clock: 2.4 khz to 2.5 mhz (msb first) figure 31-4. communication with de dicated flash programmer (csi00) dedicated flash programmer v850es/kg1+ flmd1 v dd v ss reset so00 si00 sck00 flmd1 flmd0 flmd0 v dd gnd reset si so sck pg-fp4 (flash pro4) cxxxxxx bxxxxx axxxx x xx yyy x x x x x x x x x x x x x x x xxxx yyyy statve x1 x2 clk .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 737 (3) csi00 + hs serial clock: 2.4 khz to 2.5 mhz (msb first) figure 31-5. communication with dedi cated flash programmer (csi00 + hs) dedicated flash programmer v850es/kg1+ v dd v ss reset so00 si00 sck00 pcm0 v dd flmd1 flmd1 flmd0 flmd0 gnd reset si so sck hs pg-fp4 (flash pro4) cxxxxxx bxxxxx axxxx x x x y y y x x x x x x x x x x x x x x x x x x x y y y y statve x1 x2 clk the dedicated flash programmer outputs the transfer clock, and the v850es/kg1+ operates as a slave. when the pg-fp4 is used as the d edicated flash programmer, it gener ates the following signals to the v850es/kg1+. for details, refer to the pg-fp4 user?s manual (u15260e) . table 31-4. signal connections of dedicated flash programmer (pg-fp4) pg-fp4 v850es/kg1+ pr ocessing for connection signal name i/o pin function pin name uart0 csi00 csi00 + hs flmd0 output write enable/disable flmd0 flmd1 output write enable/disable flmd1 note 1 note 1 note 1 vdd ? v dd voltage generation/voltage monitor v dd gnd ? ground v ss clk output clock output to v850es/kg1+ x1, x2 note 2 note 2 note 2 reset output reset signal reset si/rxd input receive signal so00, txd0 so/txd output transmit signal si00, rxd0 sck output transfer clock sck00 hs input handshake signal for csi00 + hs communication pcm0 notes 1. wire the pin as shown in figures 31-6 and 31-7, or connect it to gnd on board via a pull-down resistor. 2. connect these pins to supply a clock from the pg -fp4 (wire as shown in figures 31-6 and 31-7, or create an oscillator on board and supply the clock). remark : must be connected. : does not have to be connected. .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 738 table 31-5. wiring between + + ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 739 figure 31-6. wiring example of v850es/kg 1+ flash writing adapter (fa-100gc-8eu-a) pd70f3311, pd70f3311y, pd70f3313, pd70f3313y vdd gnd gnd vdd gnd vdd vdd gnd 70 69 61 connect to vdd. connect to gnd. 34 1 5 76 100 910 8 24 23 22 2 11 12 13 14 33 so sck si x1 /reset v pp reserve/hs x2 rfu-3 ruf-2 rfu-1 flmd1 flmd0 vde note 2 note 1 ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 740 figure 31-7. wiring example of v850es/kg 1+ flash writing adapter (fa-100gf-3ba-a) pd70f3311, pd70f3311y, pd70f3313, pd70f3313y rfu-3 rfu-2 vde flmd1 flmd0 rfu-1 si so sck /reset v pp reserve/hs x1 x2 vdd gnd gnd vdd gnd vdd vdd gnd 1 3 4 7 10 11 12 13 15 14 25 26 24 72 78 71 63 35 36 connect to vdd. connect to gnd. note 2 note 1 ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 741 31.4.3 flash memory control the following shows the procedure for manipulating the flash memory. figure 31-8. procedure for manipulating flash memory start select communication system manipulate flash memory end? yes supplies flmd0 pulse no end switch to flash memory programming mode .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 742 31.4.4 selection of communication mode in the v850es/kg1+, the communication mode is selected by inputting pulses (12 pulses max.) to the flmd0 pin after switching to the flash memory programming mode. the flmd0 pulse is generated by the dedicated flash programmer. the following shows the relationship between the number of pulses and the communication mode. figure 31-9. selection of communication mode v dd v dd reset (input) flmd1 (input) flmd0 (input) rxd0 (input) txd0 (output) v ss v dd v ss v dd v ss v dd v ss v dd v ss v dd v ss (note) power on oscillation stabilized communication mode selected flash control command communication (erasure, write, etc.) reset released note the number of clocks is as follows depending on the communication mode. flmd0 pulse communication mode remarks 0 uart0 communication rate: 9600 bps (after reset), lsb first 8 csi00 v850es/kg1+ performs slave operation, msb first 11 csi00 + + .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 743 31.4.5 communication commands the v850es/kg1+ communicates with t he dedicated flash programmer by means of commands. the signals sent from the dedicated flash programmer to the v850es/kg1+ are called ?commands?. the response signals sent from the v850es/kg1+ to the dedicated flash programmer are called ?response commands?. figure 31-10. communication commands dedicated flash programmer v850es/kg1+ command response command pg-fp4 (flash pro4) cxxxxxx bxxxxx axxxx xxx yyy x x x x x x x x x x x x x x x xxxx y yyy statve the following shows the commands for flash memory cont rol in the v850es/kg1+. all of these commands are issued from the dedicated flash programmer, and the v8 50es/kg1+ performs the processing corresponding to the commands. table 31-6. flash memory control commands support classification command name csi00 csi00 + hs uart0 function blank check block blank check command { { { checks if the contents of the memory in the specified block have been correctly erased. chip erase command { { { erases the contents of the entire memory. erase block erase command { { { erases the contents of the memory of the specified block. write write command { { { writes the specified address range, and executes a contents verify check. verify command { { { compares the contents of memory in the specified address range with data transferred from the flash programmer. verify checksum command { { { reads the checksum in the specified address range. silicon signature command { { { reads silicon signature information. system setting, control security setting command { { { disables the chip erase command, enables the block erase command, and disables the write command. .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 744 31.4.6 pin connection when performing on-board writing, mount a connector on t he target system to conne ct to the dedicated flash programmer. also, incorporate a function on-board to s witch from the normal operation mode to the flash memory programming mode. in the flash memory programming mode, all the pins not used for flash memory programming become the same status as that immediately after rese t. therefore, pin handling is required when the external device does not acknowledge the status immediately after a reset. (1) flmd0 pin in the normal operation mode, input a voltage of v ss level to the flmd0 pin. in the flash memory programming mode, supply a write voltage of v dd level to the flmd0 pin. because the flmd0 pin serves as a write protection pin in the self programming mode, a voltage of v dd level must be supplied to the flmd0 pin via port control, etc., before writing to the flash memory. for details, refer to 31.5.5 (1) flmd0 pin . figure 31-11. flmd0 pin connection example v850es/kg1+ flmd0 dedicated flash programmer connection pin pull-down resistor (r flmd0 ) .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 745 (2) flmd1 pin when 0 v is input to the flmd0 pin, t he flmd1 pin does not function. when v dd is supplied to the flmd0 pin, the flash memory programming mode is entered, so 0 v must be input to the flmd1 pin. the following shows an example of the connection of the flmd1 pin. figure 31-12. flmd1 pin connection example flmd1 pull-down resistor (r flmd1 ) other device v850es/kg1+ caution if the v dd signal is input to the flmd1 pin from another device during on-board writing and immediately after reset, isolate this signal. table 31-7. relationship between flmd0 and flmd1 pi ns and operation mode wh en reset is released flmd0 flmd1 operation mode 0 don?t care normal operation mode v dd 0 flash memory programming mode v dd v dd setting prohibited .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 746 (3) serial interface pin the following shows the pins used by each serial interface. table 31-8. pins used by serial interfaces serial interface pins used uart0 txd0, rxd0 csi00 so00, si00, sck00 csi00 + + .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 747 (b) malfunction of other device when the dedicated flash programmer (output or input) is connected to a serial interface pin (input or output) that is connected to another device (input), the signal is output to the other device, causing the device to malfunction. to avoid this, isolate the connection to the other device. figure 31-14. malfunction of other device v850es/kg1+ pin dedicated flash programmer connection pin other device input pin in the flash memory programming mode, if the signal the v850es/kg1+ outputs affects the other device, isolate the signal on the other device side. v850es/kg1+ pin dedicated flash programmer connection pin other device input pin in the flash memory programming mode, if the signal the dedicated flash programmer outputs affects the other device, isolate the signal on the other device side. .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 748 (4) reset pin when the reset signals of the dedicated flash programmer are connected to the reset pin that is connected to the reset signal generator on-board, a conflict of signal s occurs. to avoid the conflict of signals, isolate the connection to the reset signal generator. when a reset signal is input from the user system in the flash memory programming mode, the programming operation will not be performed correctly. therefore, do not input signals other than the reset signals from the dedicated flash programmer. figure 31-15. conflict of signals (reset pin) v850es/kg1+ reset dedicated flash programmer connection pin reset signal generator conflict of signals output pin in the flash memory programming mode, the signal the reset signal generator outputs conflicts with the signal the dedicated flash programmer outputs. therefore, isolate the signals on the reset signal generator side. (5) port pins (including nmi) when the system shifts to the flash memory programmi ng mode, all the pins that are not used for flash memory programming are in the same st atus as that immediately after rese t. if the external device connected to each port does not recognize the st atus of the port immediately after reset, pins require appropriate processing, such as connecting to v dd via a resistor or connecting to v ss via a resistor. (6) other signal pins connect x1, x2, xt1, xt2, and regc in the same status as that in t he normal operation mode. (7) power supply supply the same power (v dd , v ss , ev dd , ev ss , av ss , bv dd , bv ss , av ref0 , av ref1 ) as in normal operation mode. .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 749 31.5 rewriting by self programming 31.5.1 overview the v850es/kg1+ supports a flash macro service that allows the user prog ram to rewrite the internal flash memory by itself. by using this interface and a self progra mming library that is used to rewrite the flash memory with a user application program, the flash me mory can be rewritten by a user application transferred in advance to the internal ram or external memory. consequently, t he user program can be upgraded and constant data can be rewritten in the field. figure 31-16. concept of self programming application program self programming library flash macro service flash memory flash function execution flash information erase, write .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 750 31.5.2 features (1) secure self programming (boot swap function) the v850es/kg1+ supports a boot swap function that can exchange the physical memory (blocks 0 to 3) of boot area 0 with the physical memory (blocks 4 to 7) of boot area 1. by writi ng the start program to be rewritten to boot area 1 in advance and then swapping the physical memory, the entire area can be safely rewritten even if a power failure occurs during rewriti ng because the correct user program always exists in boot area 0. figure 31-17. rewriting entire memory area (boot swap) block n block 8 block 7 block 6 block 5 block 4 block 3 block 2 block 1 block 0 block n block n boot swap rewriting boot areas 0 and 1 block 8 block 7 block 6 block 5 block 4 block 3 block 2 block 1 block 0 block 8 block 7 block 6 block 5 block 4 block 3 block 2 block 1 block 0 remark + .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 751 31.5.3 standard self programming flow the entire processing to rewrite the flash memory by flash self programming is illustrated below. figure 31-18. standard self programming flow flash environment initialization processing erase processing write processing flash information setting processing note 1 internal verify processing boot area swapping processing note 2 flash environment end processing flash memory manipulation end of processing all blocks end? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 752 31.5.4 flash functions table 31-9. flash function list function name outline support flashenv initialization of flash control macro .com .com .com .com 4 .com u datasheet
chapter 31 flash memory preliminary user?s manual u16894ej1v0ud 753 31.5.6 internal resources used the following table lists the internal resources used for se lf programming. these internal resources can also be used freely for purposes ot her than self programming. table 31-10. internal resources used resource name description entry ram area (internal ram/external ram size note ) routines and parameters used for the flash macr o service are located in this area. the entry program and default parameters are copied by calling a library initialization function. stack area (stack size note ) an extension of the stack used by the user is used by the library (can be used in both the internal ram and external ram). library code (code size note ) program entity of library (can be used anywhere other than the flash memory block to be manipulated). application program executed as user application. calls flash functions. maskable interrupt can be used in user application execut ion status or self programming status. to use this interrupt in the self programming status, the interrupt servicing start address must be registered in advance by a registration function. nmi interrupt can be used in user application execution status or self programming status. to use this interrupt in the self programming status the interrupt servicing start address must be registered in advance by a registration function. note for the capacity to be used, refer to the v850 series flash memory se lf programming (single power supply flash memory) user?s manual (under preparation). .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 754 chapter 32 electrical specifications (target) absolute maximum ratings (t a = 25 ? + ? + ? + ? + ? + ? + ? + ? + ? + ? + ? + ? + ? + ? + ? + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 755 absolute maximum ratings (t a = 25 c) (2/2) parameter symbol conditions ratings unit p00 to p06, p10, p11, p30 to p35, p40 to p42, p50 to p55, p90 to p915, pcm0 to pcm3, pcs0, pcs1, pct0, pct1, pct4, pct6, pdl0 to pdl15, pdh0 to pdh5 20 ma p36 to p39 per pin 30 ma p00 to p06, p30 to p39, p40 to p42 35 p50 to p55, p90 to p915 total of all pins: 70 ma 35 ma pcm0 to pcm3, pcs0, pcs1, pct0, pct1, pct4, pct6 35 ma output current, low i ol pdl0 to pdl15, pdh0 to pdh5 total of all pins: 70 ma 35 ma per pin ? 10 p00 to p06, p30 to p35, p40 to p42 ? 30 ma p50 to p55, p90 to p915 total of all pins: ? 60 ma ? 30 ma pcm0 to pcm3, pcs0, pcs1, pct0, pct1, pct4, pct6 ? 30 ma pdl0 to pdl15, pdh0 to pdh5 total of all pins: ? 60 ma ? 30 output current, high i oh p10, p11 per pin ? 10 ma normal operation mode ? 40 to +85 c operating ambient temperature t a flash memory programming mode t.b.d. c pd703313, 703313y ? 65 to +150 c storage temperature t stg pd70f3311, 70f3311y, 70f3313, 70f3313y ? 40 to +125 c cautions 1. do not directly connect the output (or i/o) pins of ic products to each other, or to v dd , v cc , and gnd. open-drain pins or open-c ollector pins, however, can be dir ectly connected to each other. direct connection of the output pins between an ic product and an external circuit is possible, if the output pins can be set to the high-impedance stat e and the output timing of the external circuit is designed to avoid output conflict. 2. product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. that is, the ab solute maximum ratings are rate d values at which the product is on the verge of suffering physical damage, and therefore the product must be used under conditions that ensure that th e absolute maximum ratings are not exceeded. the ratings and conditions indicated for dc characteristics and ac characteristics represent the quality assurance range during normal operation. capacitance (t a = 25 c, v dd = ev dd = av ref0 = bv dd = av ref1 = v ss = ev ss = bv ss = av ss = 0 v) parameter symbol conditions min. typ. max. unit input capacitance c i p70 to p77 15 pf note 15 pf i/o capacitance c io f x = 1 mhz unmeasured pins returned to 0 v p36 to p39 20 pf note p00 to p06, p10, p11, p30 to p35, p40 to p42, p50 to p55, p90 to p915, pcm0 to pcm3, pcs0, pcs1, pct0, pct1, pct4, pct6, pdl0 to pdl15, pdh0 to pdh5 remark f x : main clock oscillation frequency .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 756 operating conditions (t a = ? 40 to +85 c, v dd = ev dd = av ref0 = 2.7 to 5.5 v, 2.7 v bv dd v dd , 2.7 v av ref1 v dd , v ss = ev ss = bv ss = av ss = 0 v, c l = 50 pf) parameter symbol conditions min. typ. max. unit regc = v dd = 4.5 to 5.5 v 0.25 20 mhz regc = v dd = 4.0 to 5.5 v 0.25 16 mhz regc = capacity, v dd = 4.0 to 5.5 v 0.25 8 note mhz in pll mode regc = v dd = 2.7 to 5.5 v 0.25 8 note mhz regc = v dd = 4.0 to 5.5 v 0.0625 10 mhz regc = capacity, v dd = 4.0 to 5.5 v 0.0625 8 note mhz in clock-through mode regc = v dd = 2.7 to 5.5 v 0.0625 8 note mhz operating with subclock regc = v dd = 2.7 to 5.5 v 32.768 khz internal system clock frequency f clk operating with on-chip ring clock regc = v dd = 2.7 to 5.5 v 120 240 480 khz note these values may change after evaluation. internal system clock fr equency vs. supply voltage 1.0 0.1 0.032 0.01 supply voltage v dd [v] when regc = capacity internal system clock frequency f clk [mhz] 2.0 10.0 8.0 20.0 100 3.0 4.0 5.0 5.5 4.5 6.0 .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 757 main clock oscilla tor characteristics (1) crystal resonator, ceramic resonator (t a = ? 40 to +85 c, v dd = 2.7 to 5.5 v, v ss = 0 v) recommended circuit parameter conditions min. typ. max. unit regc = v dd = 4.5 to 5.5 v 2 5 mhz regc = v dd = 4.0 to 5.5 v 2 4 mhz regc = capacity, v dd = 4.0 to 5.5 v 2 2 note 2 mhz pll mode regc = v dd = 2.7 to 5.5 v 2 2.5 mhz oscillation frequency (f x ) note 1 clock-through mode v dd = 2.7 to 5.5 v 2 10 mhz when osts0 note 4 = 0 2 13 /f x s after reset is released when osts0 note 4 = 1 2 15 /f x s x2 x1 oscillation stabilization time note 3 after stop mode is released note 5 s notes 1. indicates only oscillator characteristics. 2. this value may change after evaluation. 3. time required to stabilize the resonator after reset or stop mode is released. 4. set by mask option/option byte (refer to chapter 30 ). 5. the value differs depending on the osts register settings. (2) external clock (t a = ? 40 to +85 c, v dd = 2.7 to 5.5 v, v ss = 0 v) recommended circuit parameter conditions min. typ. max. unit regc = v dd = 4.5 to 5.5 v 2 5 mhz regc = v dd = 4.0 to 5.5 v 2 4 mhz pll mode note regc = v dd = 2.7 to 5.5 v 2 2.5 mhz external clock x2 x1 input frequency (f x ) clock-through mode note v dd = 2.7 to 5.5 v 2 10 mhz note make sure that the duty ratio of the input waveform is within 50% 5%. cautions 1. when using the main cl ock oscillator, wire as follows in the area enclosed by th e broken lines in the above figures to avo id an adverse effect fr om wiring capacitance. ? keep the wiring length as short as possible. do not cross the wiring with the other signal lines. do not route the wiring near a signal line th rough which a high fluctuating current flows. always make the ground point of the osci llator capacitor the same potential as v ss . do not ground the capacitor to a ground pa ttern through which a high current flows. do not fetch signals from the oscillator. 2. when the main clock is stopped and the devi ce is operating on the subclock, wait until the oscillation stabilization time has been secured by the program before switching back to the main clock. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 758 subclock oscillator characteristics (1) crystal resonator (t a = ? 40 to +85 c, v dd = 2.7 to 5.5 v, v ss = 0 v) recommended circuit parameter conditions min. typ. max. unit oscillation frequency (f xt ) note 1 32 32.768 35 khz xt2 xt1 oscillation stabilization time note 2 10 s notes 1. indicates only oscillator characteristics. 2. time required from when v dd reaches oscillation voltage range (2 .7 v (min.)) to when the crystal resonator stabilizes. (2) external clock (t a = ? 40 to +85 c, v dd = 2.7 to 5.5 v, v ss = 0 v) recommended circuit parameter conditions min. typ. max. unit external clock xt2 xt1 input frequency (f xt ) regc = v dd 32 35 khz cautions 1. when using the subclock oscillator, wire as follows in the area enclosed by the broken lines in the above figures to avo id an adverse effect fr om wiring capacitance. keep the wiring length as short as possible. do not cross the wiring with the other signal lines. do not route the wiring near a signal line th rough which a high fluctuating current flows. always make the ground point of the osci llator capacitor the same potential as v ss . do not ground the capacitor to a ground pa ttern through which a high current flows. do not fetch signals from the oscillator. 2. the subclock oscillator is designed as a low-am plitude circuit for reducing power consumption, and is more prone to malfunction due to noise than the main clock oscillato r. particular care is therefore required with the wiring me thod when the subclock is used. 3. make sure that the duty ratio of the input waveform is within 50% 5%. ring-osc characteristics (t a = ? 40 to + 85 c, v dd = 2.7 to 5.5 v, v ss = 0 v) parameter symbol conditions min. typ. max. unit ring-osc frequency f r 120 240 480 khz pll characteristics (t a = ? 40 to + 85 c, v dd = 2.7 to 5.5 v, v ss = 0 v) parameter symbol conditions min. typ. max. unit input frequency f x 2 5 mhz output frequency f xx 8 20 mhz lock time t pll after v dd reaches 2.7 v (min.) 200 s .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 759 dc characteristics (t a = ? + ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 760 dc characteristics (t a = ? + ? .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 761 dc characteristics (t a = ? + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 762 dc characteristics (t a = ? 40 to +85 c, v dd = ev dd = av ref0 = 2.7 to 5.5 v, 2.7 v bv dd v dd , 2.7 v av ref1 v dd , v ss = ev ss = bv ss = av ss = 0 v) (4/6) parameter symbol conditions min. typ. max. unit f xx = 20 mhz (f x = 5 mhz) (in pll mode) regc = v dd = 5 v 10% 55 75 ma i dd1 normal operation mode all peripheral functions operating f xx = t.b.d. (in clock-through mode) regc = v dd = 3 v 10% t.b.d. t.b.d. ma f xx = 20 mhz (f x = 5 mhz) (in pll mode) regc = v dd = 5 v 10% 29 43 ma i dd2 halt mode all peripheral functions operating f xx = t.b.d. (in clock-through mode) regc = v dd = 3 v 10% t.b.d. t.b.d. ma f xx = 5 mhz (when pll mode off) regc = v dd = 5 v 10% 2.1 3.3 ma i dd3 idle mode watch timer operating, ring oscillation stopped f x = 8 mhz (in clock-through mode) regc = v dd = 3 v 10% t.b.d. t.b.d. ma i dd4 subclock operation mode (f xt = 32.768 khz) main oscillation stopped, ring oscillation stopped 250 420 a i dd5 sub-idle mode (f xt = 32.768 khz) main oscillation stopped, ring oscillation stopped 20 75 a sub-oscillation operating, ring oscillation operating 34 103 a sub-oscillation stopped (xt1 = v ss ), ring oscillation operating 17.5 63.5 a i dd6 stop mode sub-oscillation stopped (xt1 = v ss ), ring oscillation stopped 3.5 35.5 a i dd7 note 2 ring clock operation mode (f xx = 240 khz) main oscillation stopped, sub-oscillation stopped 4 11 ma i dd8 note 2 ring halt mode (f xx = 240 khz) main oscillation stopped, sub-oscillation stopped t.b.d. t.b.d. ma f xx = 20 mhz (f x = 5 mhz) (in pll mode) regc = v dd = 5 v 10% 65 90 ma supply current note 1 ( pd70f3313, 70f3313y) i dd9 flash memory erase/write f xx = t.b.d. (in clock-through mode) regc = v dd = 3 v 10% t.b.d. t.b.d. ma notes 1. total current of v dd , ev dd , and bv dd (all ports stopped). av ref0 is not included. 2. the supply current of the main clo ck oscillator is not included since t he main clock oscillator is stopped because of an abnormality. remark f xx : main clock frequency f x : main clock oscillation frequency f xt : subclock frequency .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 763 dc characteristics (t a = ? 40 to +85 c, v dd = ev dd = av ref0 = 2.7 to 5.5 v, 2.7 v bv dd v dd , 2.7 v av ref1 v dd , v ss = ev ss = bv ss = av ss = 0 v) (5/6) parameter symbol conditions min. typ. max. unit f xx = 20 mhz (f x = 5 mhz) (in pll mode) regc = v dd = 5 v 10% 51 70 ma i dd1 normal operation mode all peripheral functions operating f xx = t.b.d. (in clock-through mode) regc = v dd = 3 v 10% t.b.d. t.b.d. ma f xx = 20 mhz (f x = 5 mhz) (in pll mode) regc = v dd = 5 v 10% 25 38 ma i dd2 halt mode all peripheral functions operating f xx = t.b.d. (in clock-through mode) regc = v dd = 3 v 10% t.b.d. t.b.d. ma f xx = 5 mhz (when pll mode off) regc = v dd = 5 v 10% 1.8 2.9 ma i dd3 idle mode watch timer operating, ring oscillation stopped f xx = t.b.d. (in clock-through mode) regc = v dd = 3 v 10% t.b.d. t.b.d. ma i dd4 subclock operation mode (f xt = 32.768 khz) main oscillation stopped, ring oscillation stopped 240 400 a i dd5 sub-idle mode (f xt = 32.768 khz) main oscillation stopped, ring oscillation stopped 20 75 a sub-oscillation operating, ring oscillation operating 34 103 a sub-oscillation stopped (xt1 = v ss ), ring oscillation operating 17.5 63.5 a i dd6 stop mode sub-oscillation stopped (xt1 = v ss ), ring oscillation stopped 3.5 35.5 a i dd7 note 2 ring clock operation mode (f xx = 240 khz) main oscillation stopped, sub-oscillation stopped 3.5 10.5 ma i dd8 note 2 ring halt mode (f xx = 240 khz) main oscillation stopped, sub-oscillation stopped t.b.d. t.b.d. ma f xx = 20 mhz (f x = 5 mhz) (in pll mode) regc = v dd = 5 v 10% 61 85 ma supply current note 1 ( pd70f3311, 70f3311y) i dd9 flash memory erase/write f xx = t.b.d. (in clock-through mode) regc = v dd = 3 v 10% t.b.d. t.b.d. ma notes 1. total current of v dd , ev dd , and bv dd (all ports stopped). av ref0 is not included. 2. the supply current of the main clo ck oscillator is not included since t he main clock oscillator is stopped because of an abnormality. remark f xx : main clock frequency f x : main clock oscillation frequency f xt : subclock frequency .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 764 dc characteristics (t a = ? 40 to +85 c, v dd = ev dd = av ref0 = 2.7 to 5.5 v, 2.7 v bv dd v dd , 2.7 v av ref1 v dd , v ss = ev ss = bv ss = av ss = 0 v) (6/6) parameter symbol conditions min. typ. max. unit f xx = 20 mhz (f x = 5 mhz) (in pll mode) regc = v dd = 5 v 10% 42 60 ma i dd1 normal operation mode all peripheral functions operating f xx = t.b.d. (in clock-through mode) regc = v dd = 3 v 10% t.b.d. t.b.d. ma f xx = 20 mhz (f x = 5 mhz) (in pll mode) regc = v dd = 5 v 10% 29 40 ma i dd2 halt mode all peripheral functions operating f xx = t.b.d. (in clock-through mode) regc = v dd = 3 v 10% t.b.d. t.b.d. ma f x = 5 mhz (when pll mode off) regc = v dd = 5 v 10% 1.7 2.7 ma i dd3 idle mode watch timer operating, ring oscillation stopped f x = t.b.d. (in clock-through mode) regc = v dd = 3 v 10% t.b.d. t.b.d. ma i dd4 subclock operation mode (f xt = 32.768 khz) main oscillation stopped, ring oscillation stopped 100 220 a i dd5 sub-idle mode (f xt = 32.768 khz) main oscillation stopped, ring oscillation stopped 20 75 a sub-oscillation operating, ring oscillation operating 34 103 a sub-oscillation stopped (xt1 = v ss ), ring oscillation operating 17.5 63.5 a i dd6 stop mode sub-oscillation stopped (xt1 = v ss ), ring oscillation stopped 3.5 35.5 a i dd7 note 2 ring clock operation mode (f xx = 240 khz) main oscillation stopped, sub-oscillation stopped 3 9.5 ma supply current note 1 ( pd703313, 703313y) i dd8 note 2 ring halt mode (f xx = 240 khz) main oscillation stopped, sub-oscillation stopped t.b.d. t.b.d. a notes 1. total current of v dd , ev dd , and bv dd (all ports stopped). av ref0 is not included. 2. the supply current of the main clo ck oscillator is not included since t he main clock oscillator is stopped because of an abnormality. remark f xx : main clock frequency f x : main clock oscillation frequency f xt : subclock frequency .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 765 data retention characteristics stop mode (t a = ? + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 766 ac characteristics ac test input measurement points ac test output measurement points load conditions v oh v ol v oh v ol measurement points bv dd , ev dd bv ss , ev ss dut (device under measurement) c l = 50 pf caution if the load capaci tance exceeds 50 pf due to the circ uit configuration, bring the load capacitance of the device to 50 pf or less by inserting a buffer or by some other means. v dd , av ref0 , bv dd , ev dd v ss , av ss , bv ss , ev ss v ih v il v ih v il measurement points .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 767 clkout output timing (t a = ? + ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 768 bus timing (1) in multiplex bus mode (a) read/write cycle (clkout asynchronous) (t a = ? + + ? + ? + + + ? + + + ? + ? + ? ? + + ? + ? + ? + ? ? + + ? + + + ? + + + + + + + ? + + ? + + + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 769 (t a = ? + + ? + ? + + + ? + + + ? + ? + ? ? + + ? + ? + ? + ? ? + + ? + + + ? + + + + + + + ? + + ? + + + ? ? .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 770 read cycle (clkout asynchr onous): in multiplex bus mode clkout (output) a16 to a21 (output) cs0, cs1 (output) ad0 to ad15 (i/o) astb (output) rd (output) wait (input) t1 t2 tw t3 data address hi-z <6> <7> <17> <9> <12> <13> <10> <11> <25> <27> <26> <28> <21> <23> <22> <24> <16> <8> <14> <15> remark wr0 and wr1 are high level. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 771 write cycle (clkout asynchr onous): in multiplex bus mode clkout (output) ad0 to ad15 (i/o) astb (output) wr0 (output), wr1 (output) wait (input) t1 t2 tw t3 data address <25> <27> <26> <28> <21> <23> <22> <24> <6> <17> <7> <14> <20> <19> <16> <11> <18> a16 to a21 (output) cs0, cs1 (output) remark wr0 and wr1 are high level. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 772 (b) read/write cycle (clkout synch ronous): in multiplex bus mode (t a = ? + ? ? + ? .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 773 read cycle (clkout synchronous): in multiplex bus mode clkout (output) a16 to a21 (output) cs0, cs1 (output) ad0 to ad15 (i/o) astb (output) rd (output) wait (input) t1 t2 tw t3 data address hi-z <29> <31> <32> <30> <31> <32> <36> <36> <37> <37> <33> <34> remark wr0 and wr1 are high level. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 774 write cycle (clkout synchronous): in multiplex bus mode clkout (output) ad0 to ad15 (i/o) astb (output) wr0 (output), wr1 (output) wait (input) t1 t2 tw t3 data address <29> <31> <32> <32> <37> <37> <36> <36> <31> <35> a16 to a21 (output) cs0, cs1 (output) remark rd is high level. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 775 (2) in separate bus mode (a) read cycle (clkout asynchr onous): in separate bus mode (t a = ? 40 to +85 c, v dd = ev dd = av ref0 = 4.0 to 5.5 v, 4.0 v bv dd v dd , 4.0 v av ref1 v dd , v ss = ev ss = bv ss = av ss = 0 v, c l = 50 pf) (1/2) parameter symbol conditions min. max. unit address setup time (to rd ) t sard <38> (0.5 + t asw )t ? 50 ns address hold time (from rd ) t hard <39> it ? 13 ns rd low-level width t wrdl <40> (1.5 + n + t ahw )t ? 15 ns data setup time (to rd ) t sisd <41> 30 ns data hold time (from rd ) t hisd <42> 0 ns data setup time (to address) t said <43> (2 + n + t asw + t ahw )t ? 65 ns t srdwt1 <44> (0.5 + t ahw )t ? 32 ns wait setup time (to rd ) t srdwt2 <45> (0.5 + n + t ahw )t ? 32 ns t hrdwt1 <46> (n ? 0.5 + t ahw )t ns wait hold time (from rd ) t hrdwt2 <47> (n + 0.5 + t ahw )t ns t sawt1 <48> (1 + t asw + t ahw )t ? 65 ns wait setup time (to address) t sawt2 <49> (1 + n + t asw + t ahw )t ? 65 ns t hawt1 <50> (n + t asw + t ahw )t ns wait hold time (from address) t hawt2 <51> (1 + n + t asw + t ahw )t ns caution set the following in accordan ce with the usage conditions of the cpu operating clock frequency (k = 0, 1). ? 1/ f cpu < 100 ns set an address setup wait (aswk bit = 1). remarks 1. t asw : number of address setup wait clocks t ahw : number of address hold wait clocks 2. t = 1/f cpu (f cpu : cpu operating clock frequency) 3. n: number of wait clocks inserted in the bus cycle the sampling timing changes when a programmable wait is inserted 4. i: number of idle states inserted after a read cycle (0 or 1) 5. the values in the above specifications are values for when clocks with a 1:1 duty ratio are input from x1. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 776 (t a = ? 40 to +85 c, v dd = ev dd = av ref0 = 2.7 to 5.5 v, 2.7 v bv dd v dd , 2.7 v av ref1 v dd , v ss = ev ss = bv ss = av ss = 0 v, c l = 50 pf) (2/2) parameter symbol conditions min. max. unit address setup time (to rd ) t sard <38> (0.5 + t asw )t ? 100 ns address hold time (from rd ) t hard <39> it ? 26 ns rd low-level width t wrdl <40> (1.5 + n + t ahw )t ? 30 ns data setup time (to rd ) t sisd <41> 60 ns data hold time (from rd ) t hisd <42> 0 ns data setup time (to address) t said <43> (2 + n + t asw + t ahw )t ? 120 ns t srdwt1 <44> (0.5 + t ahw )t ? 50 ns wait setup time (to rd ) t srdwt2 <45> (0.5 + n + t ahw )t ? 50 ns t hrdwt1 <46> (n ? 0.5 + t ahw )t ns wait hold time (from rd ) t hrdwt2 <47> (n + 0.5 + t ahw )t ns t sawt1 <48> (1 + t asw + t ahw )t ? 130 ns wait setup time (to address) t sawt2 <49> (1 + n + t asw + t ahw )t ? 130 ns t hawt1 <50> (n + t asw + t ahw )t ns wait hold time (from address) t hawt2 <51> (1 + n + t asw + t ahw )t ns caution set the following in accordan ce with the usage conditions of the cpu operating clock frequency (k = 0, 1). ? 1/ f cpu < 200 ns set an address setup wait (aswk bit = 1). remarks 1. t asw : number of address setup wait clocks t ahw : number of address hold wait clocks 2. t = 1/f cpu (f cpu : cpu operating clock frequency) 3. n: number of wait clocks inserted in the bus cycle the sampling timing changes when a programmable wait is inserted. 4. i: number of idle states inserted after a read cycle (0 or 1) 5. the values in the above specifications are values for when clocks with a 1:1 duty ratio are input from x1. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 777 read cycle (clkout asynchr onous): in separate bus mode clkout (output) t1 <43> hi-z hi-z <38> <40> <47> <45> <46> <44> <48> <50> <49> <51> <42> <41> <39> tw t2 rd (output) cs0, cs1 (output) a0 to a21 (output) ad0 to ad15 (i/o) wait (input) remark wr0 and wr1 are high level. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 778 (b) write cycle (clkout asynchr onous): in separate bus mode (t a = ? + + + ? ? + ? ? + ? ? + + ? ? + + ? ++ + ? + + + + + ? .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 779 (t a = ? + + + ? ? + ? ? + ? ? + + ? ? + + ? ++ + ? + + + + + ? .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 780 write cycle (clkout asynchr onous): in separate bus mode clkout (output) t1 <58> <52> <55> <54> <62> <60> <61> <59> <63> <65> <64> <66> <57> <56> <53> tw t2 wr0, wr1 (output) cs0, cs1 (output) a0 to a21 (output) ad0 to ad15 (i/o) wait (input) hi-z hi-z remark rd is high level. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 781 (c) read cycle (clkout synch ronous): in separate bus mode (t a = ? + ? + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 782 read cycle (clkout synchronous, 1 wait): in separate bus mode clkout (output) t1 <70> <71> <72> <71> <72> <67> <70> <68> <69> hi-z hi-z tw t2 rd (output) cs0, cs1 (output) a0 to a21 (output) ad0 to ad15 (i/o) wait (input) <67> remark wr0 and wr1 are high level. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 783 (d) write cycle (clkout synchr onous): in separate bus mode (t a = ? + ? + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 784 write cycle (clkout synchronous ): in separate bus mode clkout (output) t1 <74> <75> <77> <76> <75> tw t2 wr0, wr1 (output) cs0, cs1 (output) a0 to a21 (output) ad0 to ad15 (i/o) wait (input) <73> <73> <77> <76> <74> hi-z hi-z remark rd is high level. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 785 (3) bus hold (a) clkout asynchronous (t a = ? + + ? ? + + + ? + + ? ? + + + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 786 bus hold (clkout asynchronous) clkout (output) hldrq (input) hldak (output) address bus (output) data bus (i/o) th th th ti ti hi-z cs0, cs1 (output) hi-z astb (output) rd (output), wr0 (output), wr1 (output) hi-z hi-z <78> <82> <79> <80> <81> .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 787 (b) clkout synchronous (t a = ? + ? + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 788 bus hold (clkout synchronous) clkout (output) hldrq (input) hldak (output) address bus (output) data bus (i/o) th th th t2 t3 ti ti hi-z cs0, cs1 (output) hi-z astb (output) rd (output), wr0 (output), wr1 (output) hi-z hi-z <83> <83> <86> <86> <84> <85> .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 789 basic operation (1) reset/external interrupt timing ( t a = ? 40 to +85 c, v dd = ev dd = av ref0 = 2.7 to 5.5 v, 2.7 v bv dd v dd , 2.7 v av ref1 v dd , v ss = ev ss = bv ss = av ss = 0 v, c l = 50 pf ) parameter symbol conditions min. max. unit when digital noise elimination not selected 2 s t wrsl1 <87> reset in power-on status when digital noise elimination selected nr t rsmp + 2 s reset low-level width note t wrsl2 <88> power-on reset 3 ms nmi high-level width t wnih <89> analog noise elimination 1 s nmi low-level width t wnil <90> analog noise elimination 1 s n = 0 to 7 (analog noise elimination) 600 ns intpn high-level width t with <91> n = 3 (when digital noise elimination selected) ni t ismp + 200 ns n = 0 to 7 (analog noise elimination) 600 ns intpn low-level width t witl <92> n = 3 (when digital noise elimination selected) ni t ismp + 200 ns note the reset low-level width is when the reset pin input is valid (when pocres is invalid). remarks 1. nr: number of samplings t rsmp : digital noise elimination sa mpling clock cycle of reset pin ni: number of samplings t ismp : digital noise elimination sa mpling clock cycle of intp3 pin 2. the above specification shows the pulse width that is accurately detected as a valid edge. if a pulse narrower than the above specification is input, theref ore, it may also be detected as a valid edge. reset/interrupt <88> <87> v dd reset (input) nmi (input) intpn (input) <89> <90> <91> <92> remark n = 0 to 7 .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 790 timer timing ( t a = ? + + + + + + + + + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 791 uart timing (t a = ? + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 792 csi0 timing (1) master mode (t a = ? + ? + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 793 csi0 timing so0n (output) input data output data si0n (input) sck0n (i/o) <99> <100> <100> <101> <102> <103> hi-z hi-z remarks 1. when transmit/receive type 1 (csicn.ckpn, csicn.dapn bits = 00) 2. n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 794 csia timing (1) master mode (t a = ? + ? ? + ? + + + + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 795 soan (output) input data output data sian (input) sckan (i/o) <104> <105> <105> <106> <107> <108> hi-z hi-z remark n = 0, 1 .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 796 i 2 c bus mode ( ? + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? + ? + ? ? ? ? ? ? ? ? + + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 797 i 2 c bus mode ( .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 798 a/d converter (t a = ? + 4.5 high-speed mode 4.8 100 4.0 high-speed mode 6.0 100 2.85 high-speed mode 14.0 100 conversion time t conv 2.7 4.0 .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 799 d/a converter (t a = ? + ? ? ? ? .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 800 power-on-clear circuit characteristics (t a = ? + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 801 low-voltage detector characteristics (t a = ? + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 802 flash memory programming characteristics (t a = ? + .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 803 serial write operation timing (uart) v dd txd0 flmd1 0 v reset (input) flmd0 <128> rxd0 <133> <135> <132> <135> <134> <127> reset command remark the flmd0 pulse does not have to be input for uart0 communication. .com .com .com .com 4 .com u datasheet
chapter 32 electrical specifications (target) preliminary user?s manual u16894ej1v0ud 804 serial write operation timing (csi or csi-hs) v dd sck00 flmd1 0 v reset (input) flmd0 <128> <129> <127> <130> <130> <131> <136> so00 si00 reset command .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 805 chapter 33 package drawings 100-pin plastic qfp (14x20) hi j detail of lead end m c d a b q r k m l p s s n g f note each lead centerline is located within 0.13 mm of its true position (t.p.) at maximum material condition. item millimeters a b d g 23.2 + ? + ? + ? .com .com .com .com 4 .com u datasheet
chapter 33 package drawings preliminary user?s manual u16894ej1v0ud 806 100-pin plastic lqfp (fine pitch) (14x14) note each lead centerline is located within 0.08 mm of its true position (t.p.) at maximum material condition. item millimeters a b d g 16.00 + ? + ? + ? .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 807 appendix a development tools the following development tool s are available for the dev elopment of systems that em ploy the v850es/kg1+. figure a-1 shows the developm ent tool configuration. ? ? ? ? ? ? .com .com .com .com 4 .com u datasheet
appendix a development tools preliminary user?s manual u16894ej1v0ud 808 figure a-1. development tool configuration language processing software ? c compiler package ? device file debugging software ? integrated debugger ? system simulator host machine (pc or ews) interface adapter note 2 in-circuit emulator (qb-v850eskx1h) note 3 conversion socket or conversion adapter target system flash programmer flash memory write adapter flash memory ? project manager (windows only) note 1 software package control software embedded software ? real-time os ? network library ? file system power supply unit flash memory write environment notes 1. the project manager pm plus is included in the c compiler package. the pm plus is only used for windows. 2. qb-v850eskx1h supports usb only. 3. qb-v850eskx1h is supplied with id850qb, a devi ce file, and power supply unit. any other products are sold separately. .com .com .com .com 4 .com u datasheet
appendix a development tools preliminary user?s manual u16894ej1v0ud 809 a.1 software package development tools (software) common to the v850 series are combined in this package. sp850 v850 series software package part number: s sp850 remark in the part number differs depending on the host machine and os used. s sp850 host machine os supply medium ab17 windows (japanese version) bb17 pc-9800 series, ibm pc/at compatibles windows (english version) cd-rom a.2 language processing software this compiler converts programs written in c language into object codes executable with a microcontroller. this compiler is st arted from project manager pm plus. ca850 c compiler package part number: s ca703000 df703313 device file this file contains information peculiar to the device. this device file should be used in combinat ion with a tool (ca850, sm850, and id850qb). the corresponding os and host machine di ffer depending on the tool to be used. remark in the part number differs depending on the host machine and os used. s ca703000 host machine os supply medium ab17 windows (japanese version) bb17 pc-9800 series, ibm pc/at compatibles windows (english version) 3k17 sparcstation tm sunos tm (rel. 4.1.4), solaris tm (rel. 2.5.1) cd-rom a.3 control software pm plus project manager this is control software designed to enable e fficient user program development in the windows environment. all operations used in development of a user program, such as starting the editor, building, and starting the debugger, can be performed from the pm plus. the pm plus is included in the c compiler package ca850. it can only be used in windows. .com .com .com .com 4 .com u datasheet
appendix a development tools preliminary user?s manual u16894ej1v0ud 810 a.4 debugging tools (hardware) a.4.1 when using in-circuit emulator qb-v850eskx1h qb-v850eskx1h notes 1, 2 in-circuit emulator the in-circuit emulator serves to d ebug hardware and software when developing application systems using a v850es/kg1+ product. it corresponds to the integrated debugger id850qb. this emulator should be used in combination with a power supply unit and emulation probe. use usb to connect this emulator to the host machine. emulation probe for gc package note 2 (part number pending) this probe is used to connect the in-circuit emulator and target system, and is designed for a 100-pin plastic lqfp (gc-8eu type). emulation probe for gf package note 2 (part number pending) this probe is used to connect the in-circuit emulator and target system, and is designed for a 100-pin plastic qfp (gf-jbt type). notes 1. qb-v850eskx1h is supplied with a power supply unit. it is also supplied with integrated debugger id850qb and a device file as control software. 2. under development a.5 debugging tools (software) this is a system simulator for the v850 series. the sm plus is windows-based software. it is used to perform debugging at the c source level or assembler level while simulating the operation of the target system on a host machine. use of the sm plus allows the execution of application logical testing and performance testing on an independent basis from hardware development, thereby providing higher development efficiency and software quality. the sm plus should be used in combination with the device file (sold separately). sm plus note system simulator part number: s sm703100 id850qb integrated debugger (supporting in-circuit emulator qb-v850eskx1h) this debugger supports the in-circuit emulat ors for the v850 series. the id850qb is windows-based software. it has improved c-compatible debugging functions and can display the results of tracing with the source program using an integrating window function that associates the source program, disassemble display, and memo ry display with the trace result. it should be used in combination with the device file (sold separately). note under development remark in the part number differs depending on the host machine and os used. s sm703100 host machine os supply medium ab17 windows (japanese version) bb17 pc-9800 series, ibm pc/at compatibles windows (english version) cd-rom .com .com .com .com 4 .com u datasheet
appendix a development tools preliminary user?s manual u16894ej1v0ud 811 a.6 embedded software the rx850 and rx850 pro are real-time oss conforming to ???? ???? ???? ???? ???? ???? ? ? .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 812 appendix b instruction set list b.1 conventions (1) register symbols u sed to describe operands register symbol explanation reg1 general-purpose registers: used as source registers. reg2 general-purpose registers: used mainly as destination registers. also used as source register in some instructions. reg3 general-purpose registers: used mainly to store the re mainders of division result s and the higher 32 bits of multiplication results. bit#3 3-bit data for specifying the bit number immx x bit immediate data dispx x bit displacement data regid system register number vector 5-bit data that specifies the trap vector (00h to 1fh) cccc 4-bit data that shows the condition codes sp stack pointer (r3) ep element pointer (r30) listx x item register list (2) register symbols used to describe opcodes register symbol explanation r 1-bit data of a code that specifies reg1 or regid r 1-bit data of the code that specifies reg2 w 1-bit data of the code that specifies reg3 d 1-bit displacement data i 1-bit immediate data (indicates th e higher bits of immediate data) i 1-bit immediate data cccc 4-bit data that shows the condition codes cccc 4-bit data that shows the condition codes of bcond instruction bbb 3-bit data for specifying the bit number l 1-bit data that specifies a program register in the register list .com .com .com .com 4 .com u datasheet
appendix b instruction set list preliminary user?s manual u16894ej1v0ud 813 (3) register symbols used in operations register symbol explanation .com .com .com .com 4 .com u datasheet
appendix b instruction set list preliminary user?s manual u16894ej1v0ud 814 (5) register symbols used in flag operations identifier explanation (blank) no change 0 clear to 0 x set or cleared in accordance with the results. r previously saved values are restored. (6) condition codes condition name (cond) condition code (cccc) condition formula explanation v 0 0 0 0 ov = 1 overflow nv 1 0 0 0 ov = 0 no overflow c/l 0 0 0 1 cy = 1 carry lower (less than) nc/nl 1 0 0 1 cy = 0 no carry not lower (greater than or equal) z 0 0 1 0 z = 1 zero nz 1 0 1 0 z = 0 not zero nh 0 0 1 1 (cy or z) = 1 not higher (less than or equal) h 1 0 1 1 (cy or z) = 0 higher (greater than) s/n 0 1 0 0 s = 1 negative ns/p 1 1 0 0 s = 0 positive t 0 1 0 1 ? .com .com .com .com 4 .com u datasheet
appendix b instruction set list preliminary user?s manual u16894ej1v0ud 815 b.2 instruction set (in alphabetical order) (1/6) execution clock flags mnemonic operand opcode operation i r l cy ov s z sat reg1,reg2 r r rr r0 01 11 0 rrrrr gr[reg2] .com .com .com .com 4 .com u datasheet
appendix b instruction set list preliminary user?s manual u16894ej1v0ud 816 (2/6) execution clock flags mnemonic operand opcode operation i r l cy ov s z sat dbtrap 1111100001000000 dbpc .com .com .com .com 4 .com u datasheet
appendix b instruction set list preliminary user?s manual u16894ej1v0ud 817 (3/6) execution clock flags mnemonic operand opcode operation i r l cy ov s z sat ld.h disp16[reg1],reg2 rrrrr111001rrrrr ddddddddddddddd0 note 8 adr .com .com .com .com 4 .com u datasheet
appendix b instruction set list preliminary user?s manual u16894ej1v0ud 818 (4/6) execution clock flags mnemonic operand opcode operation i r l cy ov s z sat or reg1,reg2 r r rr r0 01 00 0 rrrrr gr[reg2] .com .com .com .com 4 .com u datasheet
appendix b instruction set list preliminary user?s manual u16894ej1v0ud 819 (5/6) execution clock flags mnemonic operand opcode operation i r l cy ov s z sat bit#3,disp16[reg1] 00bbb111110rrrrr dddddddddddddddd adr .com .com .com .com 4 .com u datasheet
appendix b instruction set list preliminary user?s manual u16894ej1v0ud 820 (6/6) execution clock flags mnemonic operand opcode operation i r l cy ov s z sat sub reg1,reg2 r r rr r0 01 10 1 rrrrr gr[reg2] .com .com .com .com 4 .com u datasheet
appendix b instruction set list preliminary user?s manual u16894ej1v0ud 821 notes 12. in this instruction, for convenience of mnemonic descr iption, the source register is made reg2, but the reg1 field is used in the opcode. therefore, the m eaning of register specific ation in the mnemonic description and in the opcode differs from other instructions. rrrrr = regid specification rrrrr = reg2 specification 13. iiiii: lower 5 bits of imm9. iiii: higher 4 bits of imm9. 14. do not specify the same register fo r general-purpose registers reg1 and reg3. 15. sp/imm: specified by bits 19 and 20 of the sub-opcode. 16. ff = 00: load sp in ep. 01: load sign expanded 16-bit immediate data (bits 47 to 32) in ep. 10: load 16-bit logically left shifted 16-bit immediate data (bits 47 to 32) in ep. 11: load 32-bit immediate data (bits 63 to 32) in ep. 17. if imm = imm32, n + 3 clocks. 18. rrrrr: other than 00 000. 19. ddddddd: higher 7 bits of disp8. 20. dddd: higher 4 bits of disp5. 21. dddddd: higher 6 bits of disp8. .com .com .com .com 4 .com u datasheet
preliminary user?s manual u16894ej1v0ud 822 appendix c register index (1/9) symbol name unit page adcr a/d conversion result register adc 421 adcrh a/d conversion result register h adc 421 adic interrupt control register intc 647 adm a/d converter mode register adc 417 ads analog input channel specification register adc 420 adtc0 automatic data transfer address count register 0 csia 512 adtc1 automatic data transfer address count register 1 csia 512 adti0 automatic data transfer interval specification register 0 csia 518 adti1 automatic data transfer interval specification register 1 csia 518 adtp0 automatic data transfer address point specification register 0 csia 516 adtp1 automatic data transfer address point specification register 1 csia 516 asicl0 lin operation control register 0 uart 455 asif0 asynchronous serial interface tr ansmit status register 0 uart 453 asif1 asynchronous serial interface tr ansmit status register 1 uart 453 asif2 asynchronous serial interface tr ansmit status register 2 uart 453 asim0 asynchronous serial interface mode register 0 uart 450 asim1 asynchronous serial interface mode register 1 uart 450 asim2 asynchronous serial interface mode register 2 uart 450 asis0 asynchronous serial interface status register 0 uart 452 asis1 asynchronous serial interface status register 1 uart 452 asis2 asynchronous serial interface status register 2 uart 452 awc address wait control register bcu 182 bcc bus cycle control register bcu 183 brgc0 baud rate generator control register 0 uart 476 brgc1 baud rate generator control register 1 uart 476 brgc2 baud rate generator control register 2 uart 476 brgca0 divisor selection register 0 csia 516 brgca1 divisor selection register 1 csia 516 brgic interrupt control register intc 647 bsc bus size configuration register bcu 171 ccls cpu operation clock status register cg 201 cksr0 clock select register 0 uart 475 cksr1 clock select register 1 uart 475 cksr2 clock select register 2 uart 475 clm clock monitor mode register clm 707 cmp00 8-bit timer h compare register 00 tmh 363 cmp01 8-bit timer h compare register 01 tmh 363 cmp10 8-bit timer h compare register 10 tmh 363 cmp11 8-bit timer h compare register 11 tmh 363 corad0 correction address register 0 romc 726 corad0h correction address register 0h romc 726 corad0l correction address register 0l romc 726 .com .com .com .com 4 .com u datasheet
appendix c register index preliminary user?s manual u16894ej1v0ud 823 (2/9) symbol name unit page corad1 correction address register 1 romc 726 corad1h correction address register 1h romc 726 corad1l correction address register 1l romc 726 corad2 correction address register 2 romc 726 corad2h correction address register 2h romc 726 corad2l correction address register 2l romc 726 corad3 correction address register 3 romc 726 corad3h correction address register 3h romc 726 corad3l correction address register 3l romc 726 corcn correction control register romc 727 cr000 16-bit timer capture/compare register 000 tm0 295 cr001 16-bit timer capture/compare register 001 tm0 297 cr010 16-bit timer capture/compare register 010 tm0 295 cr011 16-bit timer capture/compare register 011 tm0 297 cr020 16-bit timer capture/compare register 020 tm0 295 cr021 16-bit timer capture/compare register 021 tm0 297 cr030 16-bit timer capture/compare register 030 tm0 295 cr031 16-bit timer capture/compare register 031 tm0 297 cr5 16-bit timer compare register 5 tm5 344 cr50 8-bit timer compare register 50 tm5 344 cr51 8-bit timer compare register 51 tm5 344 crc00 capture/compare control register 00 tm0 300 crc01 capture/compare control register 01 tm0 300 crc02 capture/compare control register 02 tm0 300 crc03 capture/compare control register 03 tm0 300 csi0ic0 interrupt control register intc 647 csi0ic1 interrupt control register intc 647 csia0b0 csia0 buffer ramn (n = 0 to f) csia 518 csia0b0h csia0 buffer ramnh (n = 0 to f) csia 518 csia0b0l csia0 buffer ramnl (n = 0 to f) csia 518 csia1b0 csia1 buffer ramn (n = 0 to f) csia 518 csia1b0h csia1 buffer ramnh (n = 0 to f) csia 518 csia1b0l csia1 buffer ramnl (n = 0 to f) csia 518 csiaic0 interrupt control register intc 647 csiaic1 interrupt control register intc 647 csic0 clocked serial interface cl ock selection register 0 csi0 488 csic1 clocked serial interface cl ock selection register 1 csi0 488 csim00 clocked serial interfac e mode register 00 csi0 486 csim01 clocked serial interfac e mode register 01 csi0 486 csima0 serial operation mode specification register 0 csia 513 csima1 serial operation mode specification register 1 csia 513 csis0 serial status register 0 csia 514 csis1 serial status register 1 csia 514 csit0 serial trigger register 0 csia 515 .com .com .com .com 4 .com u datasheet
appendix c register index preliminary user?s manual u16894ej1v0ud 824 (3/9) symbol name unit page csit1 serial trigger register 1 csia 515 ctbp callt base pointer cpu 57 ctpc callt execution status saving register cpu 56 ctpsw callt execution status saving register cpu 56 dacs0 d/a conversion value setting register 0 dac 443 dacs1 d/a conversion value setting register 1 dac 443 dadc0 dma addressing control register 0 dma 611 dadc1 dma addressing control register 1 dma 611 dadc2 dma addressing control register 2 dma 611 dadc3 dma addressing control register 3 dma 611 dam d/a converter mode register dac 443 dbc0 dma byte count register 0 dma 610 dbc1 dma byte count register 1 dma 610 dbc2 dma byte count register 2 dma 610 dbc3 dma byte count register 3 dma 610 dbpc exception/debug trap status saving register cpu 57 dbpsw exception/debug trap status saving register cpu 57 dchc0 dma channel control register 0 dma 612 dchc1 dma channel control register 1 dma 612 dchc2 dma channel control register 2 dma 612 dchc3 dma channel control register 3 dma 612 dda0h dma destination address register 0h dma 609 dda0l dma destination address register 0l dma 609 dda1h dma destination address register 1h dma 609 dda1l dma destination address register 1l dma 609 dda2h dma destination address register 2h dma 609 dda2l dma destination address register 2l dma 609 dda3h dma destination address register 3h dma 609 dda3l dma destination address register 3l dma 609 dmaic0 interrupt control register intc 647 dmaic1 interrupt control register intc 648 dmaic2 interrupt control register intc 648 dmaic3 interrupt control register intc 648 dsa0h dma source address register 0h dma 608 dsa0l dma source address register 0l dma 608 dsa1h dma source address register 1h dma 608 dsa1l dma source address register 1l dma 608 dsa2h dma source address register 2h dma 608 dsa2l dma source address register 2l dma 608 dsa3h dma source address register 3h dma 608 dsa3l dma source address register 3l dma 608 dtfr0 dma trigger factor register 0 dma 613 dtfr1 dma trigger factor register 1 dma 613 dtfr2 dma trigger factor register 2 dma 613 .com .com .com .com 4 .com u datasheet
appendix c register index preliminary user?s manual u16894ej1v0ud 825 (4/9) symbol name unit page dtfr3 dma trigger factor register 3 dma 613 dwc0 data wait control register 0 bcu 179 ecr interrupt source register cpu 54 eipc interrupt status saving register cpu 53 eipsw interrupt status saving register cpu 53 eximc external bus interface mode control register bcu 170 fepc nmi status saving register cpu 54 fepsw nmi status saving register cpu 54 iic0 iic shift register 0 i 2 c 558 iicc0 iic control register 0 i 2 c 546 iiccl0 iic clock selection register 0 i 2 c 556 iicf0 iic flag register 0 i 2 c 554 iicic0 interrupt control register intc 647 iics0 iic status register 0 i 2 c 551 iicx0 iic function expansion register 0 i 2 c 557 imr0 interrupt mask register 0 intc 648 imr0h interrupt mask register 0h intc 648 imr0l interrupt mask register 0l intc 648 imr1 interrupt mask register 1 intc 648 imr1h interrupt mask register 1h intc 648 imr1l interrupt mask register 1l intc 648 imr2 interrupt mask register 2 intc 648 imr2h interrupt mask register 2h intc 648 imr2l interrupt mask register 2l intc 648 imr3 interrupt mask register 3 intc 648 imr3h interrupt mask register 3h intc 648 imr3l interrupt mask register 3l intc 648 intf0 external interrupt falling edge specification register 0 intc 656 intf3 external interrupt falling edge specification register 3 intc 657 intf9h external interrupt falling edge specification register 9h intc 658 intr0 external interrupt rising edge specification register 0 intc 656 intr3 external interrupt rising edge specification register 3 intc 657 intr9h external interrupt rising edge specification register 9h intc 658 ispr in-service priority register intc 650 kric interrupt control register intc 647 krm key return mode register kr 671 lviic interrupt control register intc 647 lvim low-voltage detection register lvi 717 lvis low-voltage detection level selection register lvi 718 nfc digital noise elimination control register intc 654 osts oscillation stabilization time selection register standby 677 p0 port 0 register port 96 p0nfc tip00 noise elimination control register tmp 290 p1 port 1 register port 98 .com .com .com .com 4 .com u datasheet
appendix c register index preliminary user?s manual u16894ej1v0ud 826 (5/9) symbol name unit page p1nfc tip01 noise elimination control register tmp 290 p3 port 3 register port 101 p3h port 3 register h port 101 p3l port 3 register l port 101 p4 port 4 register port 106 p5 port 5 register port 109 p7 port 7 register port 112 p9 port 9 register port 114 p9h port 9 register h port 114 p9l port 9 register l port 114 pc program counter cpu 51 pcc processor clock control register cg 197 pcm port cm register port 121 pcs port cs register port 123 pct port ct register port 125 pdh port dh register port 127 pdl port dl register port 130 pdlh port dl register h port 130 pdll port dl register l port 130 pf3h port 3 function register h port 103 pf4 port 4 function register port 108 pf5 port 5 function register port 110 pf9h port 9 function register h port 117 pfc3 port 3 function control register port 103 pfc4 port 4 function control register port 107 pfc5 port 5 function control register port 111 pfc9 port 9 function control register port 117 pfc9h port 9 function control register h port 118 pfc9l port 9 function control register l port 118 pfce3 port 3 function control expansion register port 103 pfm power fail comparison mode register adc 423 pft power fail comparison threshold register adc 423 pic0 interrupt control register intc 647 pic1 interrupt control register intc 647 pic2 interrupt control register intc 647 pic3 interrupt control register intc 647 pic4 interrupt control register intc 647 pic5 interrupt control register intc 647 pic6 interrupt control register intc 647 pic7 interrupt control register intc 647 pllctl pll control register cg 203, 412 pm0 port 0 mode register port 96 pm1 port 1 mode register port 98 pm3 port 3 mode register port 101 .com .com .com .com 4 .com u datasheet
appendix c register index preliminary user?s manual u16894ej1v0ud 827 (6/9) symbol name unit page pm3h port 3 mode register h port 101 pm3l port 3 mode register l port 101 pm4 port 4 mode register port 106 pm5 port 5 mode register port 109 pm9 port 9 mode register port 114 pm9h port 9 mode register h port 114 pm9l port 9 mode register l port 114 pmc0 port 0 mode control register port 97 pmc3 port 3 mode control register port 102 pmc3h port 3 mode control register h port 102 pmc3l port 3 mode control register l port 102 pmc4 port 4 mode control register port 107 pmc5 port 5 mode control register port 110 pmc9 port 9 mode control register port 114 pmc9h port 9 mode control register h port 115 pmc9l port 9 mode control register l port 115 pmccm port cm mode control register port 122 pmccs port cs mode control register port 124 pmcct port ct mode control register port 126 pmcdh port dh mode control register port 128 pmcdl port dl mode control register port 131 pmcdlh port dl mode control register h port 131 pmcdll port dl mode control register l port 131 pmcm port cm mode register port 121 pmcs port cs mode register port 123 pmct port ct mode register port 125 pmdh port dh mode register port 127 pmdl port dl mode register port 130 pmdlh port dl mode register h port 130 pmdll port dl mode register l port 130 prcmd command register cpu 83 prm00 prescaler mode register 00 tm0 303 prm01 prescaler mode register 01 tm0 303 prm02 prescaler mode register 02 tm0 303 prm03 prescaler mode register 03 tm0 303 prscm interval timer brg compare register cg 387 prsm interval timer brg mode register cg 386 psc power save control register standby 675 psmr power save mode register standby 676 psw program status word cpu 55 pu0 pull-up resistor option register 0 port 97 pu1 pull-up resistor option register 1 port 99 pu3 pull-up resistor option register 3 port 105 pu4 pull-up resistor option register 4 port 108 .com .com .com .com 4 .com u datasheet
appendix c register index preliminary user?s manual u16894ej1v0ud 828 (7/9) symbol name unit page pu5 pull-up resistor option register 5 port 111 pu9 pull-up resistor option register 9 port 120 pu9h pull-up resistor option register 9h port 120 pu9l pull-up resistor option register 9l port 120 pucm pull-up resistor option register cm port 122 pucs pull-up resistor option register cs port 124 puct pull-up resistor option register ct port 126 pudh pull-up resistor option register dh port 128 pudl pull-up resistor option register dl port 131 pudll pull-up resistor option register dll port 131 pudlh pull-up resistor option register dlh port 131 rcm ring-osc mode register cg 201, 708 r0 to r31 general-purpose registers cpu 51 resf reset source flag register reset 694 rnzc reset noise elimination control register reset 697 rtbh0 real-time output buffer register h0 rtp 406 rtbl0 real-time output buffer register l0 rtp 406 rtpc0 real-time output port control register 0 rtp 408 rtpm0 real-time output port mode register 0 rtp 407 rxb0 receive buffer register 0 uart 454 rxb1 receive buffer register 1 uart 454 rxb2 receive buffer register 2 uart 454 selcnt0 selector operation control register 0 uart 456 selcnt1 selector operation control register 1 tm0 304 sio00 serial i/o shift register 0 csi0 493 sio00l serial i/o shift register 0l csi0 493 sio01 serial i/o shift register 1 csi0 493 sio01l serial i/o shift register 1l csi0 493 sioa0 serial i/o shift register a0 csia 512 sioa1 serial i/o shift register a1 csia 512 sirb0 clocked serial interface re ceive buffer register 0 csi0 489 sirb0l clocked serial interface re ceive buffer register 0l csi0 489 sirb1 clocked serial interface re ceive buffer register 1 csi0 489 sirb1l clocked serial interface re ceive buffer register 1l csi0 489 sirbe0 clocked serial interface read- only receive buffer register 0 csi0 490 sirbe0l clocked serial interface read- only receive buffer register 0l csi0 490 sirbe1 clocked serial interface read- only receive buffer register 1 csi0 490 sirbe1l clocked serial interface read- only receive buffer register 1l csi0 490 sotb0 clocked serial interface tr ansmit buffer register 0 csi0 491 sotb0l clocked serial interface tr ansmit buffer register 0l csi0 491 sotb1 clocked serial interface tr ansmit buffer register 1 csi0 491 sotb1l clocked serial interface tr ansmit buffer register 1l csi0 491 sotbf0 clocked serial interface init ial transmit buffer register 0 csi0 492 sotbf0l clocked serial interface init ial transmit buffer register 0l csi0 492 .com .com .com .com 4 .com u datasheet
appendix c register index preliminary user?s manual u16894ej1v0ud 829 (8/9) symbol name unit page sotbf1 clocked serial interface init ial transmit buffer register 1 csi0 492 sotbf1l clocked serial interface init ial transmit buffer register 1l csi0 492 sreic0 interrupt control register intc 647 sreic1 interrupt control register intc 647 sreic2 interrupt control register intc 647 sric0 interrupt control register intc 647 sric1 interrupt control register intc 647 sric2 interrupt control register intc 647 stic0 interrupt control register intc 647 stic1 interrupt control register intc 647 stic2 interrupt control register intc 647 sva0 slave address register 0 i 2 c 558 sys system status register cpu 84 tcl50 timer clock selection register 50 tm5 345 tcl51 timer clock selection register 51 tm5 345 tm00 16-bit timer counter 00 tm0 295 tm01 16-bit timer counter 01 tm0 295 tm02 16-bit timer counter 02 tm0 295 tm03 16-bit timer counter 03 tm0 295 tm0ic00 interrupt control register intc 647 tm0ic01 interrupt control register intc 647 tm0ic10 interrupt control register intc 647 tm0ic11 interrupt control register intc 647 tm0ic20 interrupt control register intc 647 tm0ic21 interrupt control register intc 647 tm0ic30 interrupt control register intc 647 tm0ic31 interrupt control register intc 647 tm5 16-bit timer counter 5 tm5 358 tm50 8-bit timer counter 50 tm5 343 tm51 8-bit timer counter 51 tm5 343 tm5ic0 interrupt control register intc 647 tm5ic1 interrupt control register intc 647 tmc00 16-bit timer mode control register 00 tm0 298 tmc01 16-bit timer mode control register 01 tm0 298 tmc02 16-bit timer mode control register 02 tm0 298 tmc03 16-bit timer mode control register 03 tm0 298 tmc50 8-bit timer mode control register 50 tm5 346 tmc51 8-bit timer mode control register 51 tm5 346 tmcyc0 8-bit timer h carrier control register 0 tmh 367 tmcyc1 8-bit timer h carrier control register 1 tmh 367 tmhic0 interrupt control register intc 647 tmhic1 interrupt control register intc 647 tmhmd0 8-bit timer h mode register 0 tmh 364 tmhmd1 8-bit timer h mode register 1 tmh 364 .com .com .com .com 4 .com u datasheet
appendix c register index preliminary user?s manual u16894ej1v0ud 830 (9/9) symbol name unit page toc00 16-bit timer output control register 00 tm0 301 toc01 16-bit timer output control register 01 tm0 301 toc02 16-bit timer output control register 02 tm0 301 toc03 16-bit timer output control register 03 tm0 301 tp0ccic0 interrupt control register intc 647 tp0ccic1 interrupt control register intc 647 tp0ccr0 tmp0 capture/compare register 0 tmp 214 tp0ccr1 tmp0 capture/compare register 1 tmp 216 tp0cnt tmp0 counter read buffer register tmp 218 tp0ctl0 tmp0 control register 0 tmp 208 tp0ctl1 tmp0 control register 1 tmp 209 tp0ioc0 tmp0 i/o control register 0 tmp 210 tp0ioc1 tmp0 i/o control register 1 tmp 211 tp0ioc2 tmp0 i/o control register 2 tmp 212 tp0opt0 tmp0 option register 0 tmp 213 tp0ovic interrupt control register intc 647 txb0 transmit buffer register 0 uart 454 txb1 transmit buffer register 1 uart 454 txb2 transmit buffer register 2 uart 454 vswc system wait control register cpu 85 wdcs watchdog timer clock se lection register wdt 397 wdt1ic interrupt control register intc 647 wdte watchdog timer enable register wdt 403 wdtm1 watchdog timer mode register 1 wdt 398, 652 wdtm2 watchdog timer mode register 2 wdt 402 wtic interrupt control register intc 647 wtiic interrupt control register intc 647 wtm watch timer operation mode register wt 390 .com .com .com 4 .com u datasheet

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