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r eme66x x hardware description copyright ? 2005, em microelectronic-marin sa 1 www.emmicroelectronic.com em66xx in-circuit emulator hardware description version 2.8 october 2005 em microelectronic - marin sa
r eme66x x hardware description copyright ? 2005, em microelectronic-marin sa 2 www.emmicroelectronic.com
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 3 www.emmicroelectronic.com 1. em66xx emulator har dware descr iption........................................................................................... ........... 4 1.1. warnin g ........................................................................................................................ ............................ 4 1.2. front panel .................................................................................................................... ........................... 5 1.2.1. ice connecto r pin- out .......................................................................................................... ............. 6 1.2.2. lcd connector pin-out ** ....................................................................................................... .......... 6 1.3. rear panel ..................................................................................................................... .......................... 7 1.4. switch settings ................................................................................................................ ......................... 8 2. general operati onal poi nts..................................................................................................... ................... 12 2.1. using exter nal clock ........................................................................................................... ................... 12 2.2. option regi sters ............................................................................................................... .................... 12 2.3. watchdog ti mers ................................................................................................................ ................... 12 2.4. synchronous and asyn chronous modes............................................................................................. .. 12 3. configuration resistors........................................................................................................ ...................... 13 3.1. port confi guratio n ............................................................................................................. .................... 13 3.2. pull-up and pull-down resi stor plac ement. ...................................................................................... .... 14 4. default conf igurat ions ......................................................................................................... ...................... 15 4.1. em66xx ......................................................................................................................... ........................ 15 4.2. em6603 / em6605 ................................................................................................................ ................ 16 4.3. em6604 ......................................................................................................................... ........................ 17 4.4. em6607 ......................................................................................................................... ........................ 18 4.5. em6617 ......................................................................................................................... ........................ 19 4.6. em6620 ......................................................................................................................... ........................ 20 4.7. em6621, em6622, em6625, em6626 ................................................................................................ . 21 4.8. em6640 ......................................................................................................................... ........................ 22 4.9. em6680 ......................................................................................................................... ........................ 23 5. em66xx emulator upgrade proc edure .............................................................................................. ........ 24
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 4 www.emmicroelectronic.com 1. em66xx emulator hardware description 1.1. warning when connecting or disconnecting the em66xx emulator to the target system or when connecting headers or lcd?s to the connectors on the front panel it is essential that the emulator is powered off. failure to do this could result in damage to the emulator hardware, which would require the system being returned to em microelectronic for repair. please also be aware that when port pins are set to input, any voltage greater that the v i/o level that has been set (see below) can also damage the em ulator. this includes transitory switching spikes as well as sustained over voltage conditions. it is recommended that any high levels driven onto the emulator port pins for sustained periods should be set to approximately 10 percent below the set v i/o level. so for example, if v i/o is set to 3.0v th en to drive a high on to portb the recommended level would be around 2.7v. alternatively v i/o can be set above the switching level applied to the emulator to say 3.3v in the above example.
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 5 www.emmicroelectronic.com 1.2. front panel the reset switch will perform a hardware reset to the ent ire emulator, however it w ill not reinitialise peripheral ram or trace and program memory. it w ill set peripheral registers to their reset values as specified in the respective microcontroller data sheets. the svld (supply voltage level detect) switch will return a failing result during software control of the svld peripheral, i.e. simulating a battery or supply low condition. the four green led?s indicate the following conditions . halt led will light when a halt instruction is executed. debug led will light when connection to the host is made and the core is in a break state. when the core is running this led will go out. break led w ill light when the connection to the host has been made. if this led in not illuminated then there is no communica tion with the monitor. reset led will light when a hardware reset is performed. on/off reset svld halt debug break reset lcd connector ice connector pin 1 pin 1 pin 40 pin 40
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 6 www.emmicroelectronic.com 1.2.1. ice connector pin-out pin signal pin signal 1 porta 0 21 buzzer 2 porta 1 22 adc vgnd 3 porta 2 23 clock out 4 porta 3 24 adc vref 5 portb 0 25 ports 3 6 portb 1 26 adc cin 7 portb 2 27 ports 0 8 portb 3 28 adc bin 9 portc 0 29 10 portc 1 30 adc ain 11 portc 2 31 12 portc 3 32 ground 13 portd 0 33 osc in 14 portd 1 34 ports 1 / swb clk 15 portd 2 35 vioset 16 portd 3 36 ports 2 / swb data 17 reset in 37 porte 0 18 ground 38 porte 1 19 strobe / reset out 39 porte 2 20 adc din 40 porte 3 1.2.2. lcd connector pin-out ** pin signal pin signal 1 no connection 21 col 13 2 no connection 22 col 14 3 row 4 23 col 15 4 row 3 24 col 16 5 row 2 25 col 17 6 row 1 26 col 18 7 ground 27 col 19 8 no connection 28 col 20 9 col 1 29 col 21 10 col 2 30 col 22 11 col 3 31 col 23 12 col 4 32 col 24 13 col 5 33 col 25 14 col 6 34 col 26 15 col 7 35 col 27 16 col 8 36 col 28 17 col 9 37 col 29 18 col 10 38 col 30 19 col 11 39 col 31 20 col 12 40 col 32
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 7 www.emmicroelectronic.com 1.3. rear panel the v i/o adjustment allows the user to change the output drive level and input switching level of the v66xx emulator. thus, if it is required that the emulator operat e in a system where the supply voltage is 0 to 3 volts, then the inputs and outputs can be easily c onfigured for this. the input switching level is cmos compatible and is around 0.5vdd. so if v i/o is set to 3v then when input a port will change from a logic 0 to a logic 1 at about 1.5v. in output mode a logic 0 will be approximately 0v and a logic 1 will be at approximately 3.0v. in order to set v i/o it is necessary to do the fo llowing. set an output line to drive a logic 1, e.g. portb-1. then connect a voltmeter between portb-1 and gr ound (emulator side), turning the v i/o with a pot trimmer will cause the output on the port pin to change, until the required level is obtained. it is possible to vary the output drive between 1.5v and 5.5v. adjustment of the lcd drive levels are also possible using the vlcd trimmer pot. the output levels can be set using a similar method to that outli ned above, i.e. by setting a particula r lcd column line high and measuring with a voltmeter. the vlcd level can also be changed dynamically such that when display data is being updated and the emulator is in run mode, it is possibl e to vary vlcd and observe what is happening to the contrast on the display. the power supply of the emulator is 12v dc/1a 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 v i/o vlcd s3 s4 rs-232 power
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 8 www.emmicroelectronic.com 1.4. switch settings when switch settings are changed an emulator hardware reset should be performed or the emulator should be powered off then on again. switch function default position s4-1 reserved reserved up s4-2 reserved reserved up s4-3 rs-232 baud rate ( 19.2k / 9.6k) 19.2k up s4-4 watchdog enable enabled up s4-5 break periphery disabled up s4-6 reserved reserved up s4-7 reserved reserved up s4-8 reserved reserved up s3-1 core clock disabled up s3-2 oscillator 0 internal up s3-3 oscillator 1 oscillator up s3-4 clock divider divided by 1 up s3-5 clock divider divided by 1 up s3-6 reserved reserved up s3-7 reserved reserved up s3-8 internal buzzer disabled up note the following: during break, if switch s4-5 is in the up position the co re will stop execution of inst ructions but the peripheral components such as timers and serial interfaces will c ontinue to run. if this switch is set down then all peripheral functions will st op when the core breaks. switch s4-4 enables or disable the internal watchdog time r. this will also be disabled on break if s4-5 is in the down position. switch s3-1 will output the internal core clock out to the target system if required. however, this switch should not be put into the down posit ion on a no load situation. switch s3-8 will route the buzzer tone to an internal buzzer. switches s3-4 and s3-5 can be set to give a core clock frequency which is a division of the fundamental oscillator fitted in the emulator. the following t able shows the frequencies available for the em66xx microcontrollers: em6605 em6640 em66xx s3-4 s3-5 divisor 1000khz 600khz 32.768khz up up 1 1000.00 600.00 32.768 down up 2 500.00 up down 4 250.00 down down 8 125.00 on the em6625 / em6626, peripheral clock is automatically divided to 32khz: em6625 / em6626 base clock s3-2 s3-3 s3-4 s3-5 divisor u23 / 32,768khz u53 / 4,096 mhz up up up up 1 32,768khz - down down up down 2 - 32 khz down down down up 1 - 64 khz down down down down 4 - 128 khz it?s possible to emulate the metal option ?mdeb? by us ing the switch s3-7. ck[11] is used as debouncer clock when the switch is up, whereas ck14 is used when it?s down.
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 9 www.emmicroelectronic.com switches s3-2 and s3-3 can be set to select the clo ck mode. the following table shows the three available modes. the default mode is the internal oscillator. s3-2 s3-3 selection em6640 em66xx up up internal oscillator down up external clock up down not available down down synthesiser for the em6607, use the following table to set the input port a reset combination option. option s3-6 s3-7 function a up up no inputs reset b down up reset = pa0 * pa1 c up down reset = pa0 * pa1 * pa2 d down down reset = pa0 * pa1 * pa2 * pa*3 for the em6x80, two ways is available on the em ulator to select the desired rc clock frequency. the first solution is by hardware switches whic h represent the metal option present on the em6680. s3-6 is used to enable the switc hes metal option when it?s down. use the following table to select the core clock value: pos. s3-6 s3-5 s3-4 s3-3 s3-2 s3-7 rc frequency 1 down down down up up x 512khz 2 down down up up up x 256khz 3 down up down up up x 128khz 4 down up up up up up 32khz 5 down up up up up down 64khz 6 down down down down down x 800khz 7 down down up down down x 400khz 8 down up down down down x 200khz 9 down up up down down up 50khz 10 down up up down down down 100khz system clock is automatically se t to base frequency like 32 or 50khz. the second solution is to keep each s3-6, s3-3, s3-4 in up position and to work only with the register regmfp1 to adjust the desired rc frequency. if one of the switches is down it forc e a condition which cannot modify by the register. the following table is showing the possible selection: regmfp1[3] regmfp1[2] regmfp1[1] regm fp1[0] frequency of rcclk unit opt[7] opt[6] opt[5] opt[4] 0 0 0 0 32.00 khz 0 0 0 1 64.00 khz 0 0 1 0 128.00 khz 0 0 1 1 256.00 khz 0 1 0 0 512.00 khz 1 0 0 0 50.00 khz 1 0 0 1 100.00 khz 1 0 1 0 200.00 khz 1 0 1 1 400.00 khz 1 1 0 0 800.00 khz regmfp1[3] bit selects the base frequency, 512khz or 800khz. regmfp1[2:0] bit select the frequency divider rate, 1, 2, 4, 8, 16. when the rc frequency is changed the system clock, sysclk, will be automatic ally close as possible to 32/50 khz thanks to frequency dividers. it?s possible to modi fy the rc cpu frequency on the fly from 32 to 800khz.
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 10 www.emmicroelectronic.com a special power on reset switch is implemented on t he eme6680 emulator to be able to generate a por of the device without disconnect the eme6680 from the pc. t he controller is fully reset like a por, but you don?t need to reconnect the emulator and reload the software on it. have a look on the following drawing to s ee where is situated the switch for por. pa3 pa2 pa1 pa0 pa4 pa5 pa5 pa4 pa0 pa1 pa2 pa3 adc(pa4) svld por swi tch the following switches are used to sele ct different metal options on em6682. switches options up pos. down pos. s4-6 counter update option rc rc/2 s4-7 svld level selection em6681 em6680 s4-8 power check selection after por after reset s3-6 rc frequency selection mode register option as em6580 metal option as em6680 s3-7 metal option for frequency selection 32/50khz 64/100khz s3-8 power check level selection level 5 level 9 the adc/svld levels are the following when vbat is 3v. level em6681 em6680 0 0.36 0.5 1 0.49 0.65 2 0.49 0.8 3 0.58 0.95 4 0.68 1.1 5 0.77 1.25 6 0.829 1.4 7 0.922 1.55 8 1.02 1.7 9 1.11 1.85 10 1.2 2 11 1.3 2.15 12 1.39 2.30 13 1.48 2.45 14 1.57 2.60 15 1.66 2.75
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 11 www.emmicroelectronic.com the two following tables show the metal mask option of the em6680 which are implemented in register like the em6580. register regmfp0 @ addr. 121 decimal = 79 hex. bit name reset r/w description 3 opt[3] 0 r/w debouncer clock select ?0? = ck[11], ?1?=ck[14] 2 opt[2] 0 r/w must be kept to ?0? 1 opt[1] 0 r/w counter clock source 7 selection "0" pa3/pa4, "1" rcclk/2 0 opt[0] 0 r/w no effect note: pa4 pull resistor is located on the eme 66xx pcb at location r24 and r8. (detail on page 22) the adc/svld voltage level option is not implemented on the emulator, but to used bit of the following register are use for emulate some specific metal options. bit3 of regmfp2 is used to select the scr timing value, if ?0? is set the em6680 timing value are used, if ?1? the em6580 timing value are set. bit2 of regmfp2 is used to select the length of the counter , if ?0? value is set the 10 bi ts counter is used, if ?1? the 9 bits counter is used. register regmfp2 @ addr. 123 decimal = 7d hex. bit name reset r/w description 3 opt[11] 3 r/w scr timing selection (not implemented on em6580 silicon) 2 opt[10] 2 r/w counter length selection ?0? is 10bits ?1? is 9bits (not implemented on em6580 silicon) 1 opt[9] ? r/w not used 0 opt[8] 0 r/w adc/svld voltage level#15: "0" 2.75v, "1" 3v (not implemented on the emulator) keep guard: the regmfpx registers cannot be used in final rom version software for em6680, all three registers are metal option on the em6680. please contact emmicroeletronic for more details.
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 12 www.emmicroelectronic.com 2. general operational points. 2.1. using external clock an external clock can be used to control the em66xx core (see previous table for switches selection). the clock signal must be between 0 to 5volts and a 50% duty cycle. 2.2. option registers the em66xx range of microcontrollers has two methods of customising functions; mask options and option registers. in the emulator only some of these functions are directly implemented. fo r example the selection of pull-up and pulldown resistors at port pins is implemented directly on the emulator system board as outlined in the following section. the pull resistors can be disable by software ( if the r egister exist in the memory map of the em66xx microcontrollers). however those functions that are internal (i.e. those not associated with i/o) such as interrupt edge selection, debouncer selection, etc, are implement ed by manipulation of the correspondi ng option register as they would be in the normal operation of a microcontroller. those opt ion registers that change i/o characteristics still exist within the emulator and can be written and read as norma l, but they will perform no function otherwise. the exception to this is the em6622 emulation system, whic h due to system constraints, does not implement those option registers that change pull-up and pulldown selects. reading these registers will always produce a value of ?1111? on the data bus no matter what the written value was. 2.3. watchdog timers only the logic watchdog is implemented in the em66xx emulation system. this watchdog will generate a reset signal to the core every 2.5 - 3.5 seconds at a sy stem clock of 32.768khz. if the watchdog is enabled on the emulator and the system is running in asynchronous mode then the core will be reset periodically. this will also be the case when the emulator is in break mode, resulti ng in all internal registers being set to their default values as defined in the specif ication for each microcontroller. if the watchdog switch is enabled and the emulator is in synchronous mode then during a break the watchdog will not generate a reset since all peripheral timing functions are statically timed with the core. if the watchdog is disabled and the core is running asynchr onously then no reset will be generated however all other timers will be active as normal during a break. the other watchdog in the em range of microcontro llers is the analogue watchdog, which supervises the oscillator. if oscillation stops then a reset will be generat ed (see the appropriate microc ontroller specification). this function is not implemented in the emulator. 2.4. synchronous and asynchronous modes as outlined above, if the switch enab ling synchronous mode is activated t hen all peripheral functions will stop when the core breaks. this is a useful feature if one wishes to examine t he contents of counter registers for example. the exception to this is if a lcd controlle r is being emulated. since a frame the emulator for the display generates clock then if the periphery is running synchronously with the core then the frame clock will also stop and the display will fade. it is recommended that when using the lcd controller that the periphery is run asynchronously from the core with the logic watchdog disabled.
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 13 www.emmicroelectronic.com 3. configuration resistors. 3.1. port configuration the table below gives the reference designators on the emulator pcb of the pull-up and pulldown resistors for the port configurations on the em66xx emulator. any val ue can be fitted to give the desired configuration, but since these are 1206 smd resistors it recommended t hat only em microelectronic personnel or someone qualified in smd fabrication should attempt configuration. configuration pull-up pull down pa0 r2 r18 porta pa1 r1 r17 pa2 r3 r19 pa3 r4 r20 pb0 r6 r22 portb pb1 r5 r21 pb2 r7 r23 pb3 r8 r24 pc0 r10 r26 portc pc1 r9 r25 pc2 r11 r27 pc3 r12 r28 pd0 r14 r30 portd pd1 r13 r29 pd2 r15 r31 pd3 r16 r32 pe0 r149 r153 porte pe1 r150 r154 pe2 r151 r155 pe3 r152 r156 ps0 r35 r39 serial port ps1 r37 r41 ps2 r36 r40 ps3 r34 r38
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 14 www.emmicroelectronic.com 3.2. pull-up and pull-down resistor placement. the following representation shows the positions of the configuration resistor s given in the table above. reference designators are also show n on the silk screen of the pcb. r 13 r 29 r 30 r 14 r 150 r 154 r 153 r 149 r 35 r 39 r 34 r 38 r 15 r 31 r 32 r 16 r 151 r 155 r 156 r 152 r 36 r 40 r 37 r 41 r 1 r 17 r 18 r 2 r 5 r 21 r 22 r 6 r 9 r 25 r 10 r 26 r 19 r 3 r 20 r 4 r 7 r 23 r 24 r 8 r 11 r 27 r 12 r 28
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 15 www.emmicroelectronic.com 4. default configurations outlined below are each of the resi stors and placements for the default c onfigurations of each of the em microcontrollers supported. 4.1. em66xx porta pull-down portb pull-down portc pull-down portd pull-down porte pull-down r 29 r 30 r 154 r 153 r 31 r 32 r 155 r 156 r 17 r 18 r 21 r 22 r 25 r 26 r 19 r 20 r 23 r 24 r 27 r 28 level shifters porta u60, u61, u62, u63 portb u8, u9, u11, u12 portc u14, u15 portd u16, u17 porte u55, u56, u57, u58 strb u18 reset u19
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 16 www.emmicroelectronic.com 4.2. em6603 / em6605 porta pull-down portb pull-down portc pull-down portd pull-up r 13 r 14 r 15 r 16 r 17 r 18 r 21 r 22 r 25 r 26 r 19 r 20 r 23 r 24 r 27 r 28 level shifters porta u60, u61, u62, u63 portb u8, u9, u11, u12 portc u14, u15 portd u16, u17 strb u18 reset u19 jumpers jp19 & jp20 on pos. 1-2 jp30?jp35 on pos. 1-2 oscillator u23 3,2768mhz
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 17 www.emmicroelectronic.com 4.3. em6604 porta pull-down portb = portc cmos output portc = portb pc0 : pull-up pc1 : cmos output pc2 : cmos output pc3 : cmos output r 17 r 18 r 6 r 19 r 20 level shifters porta u60, u61, u62, u63 portb u14 portc u8, u9, u11, u12 strb u18 reset u19 jumpers jp19 & jp20 on pos. 1-2 jp30?jp35 on pos. 1-2 oscillator u23 3,2768mhz caution: keep guard that the port b and the port c are inverted on the eme6604 due to a hardware constraint.
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 18 www.emmicroelectronic.com 4.4. em6607 porta pull-down portb pull-down portc pull-down portd pull-up porte pull-down r 13 r 14 r 154 r 153 r 15 r 16 r 155 r 156 r 17 r 18 r 21 r 22 r 25 r 26 r 19 r 20 r 23 r 24 r 27 r 28 level shifters porta u60, u61, u62, u63 portb u8, u9, u11, u12 portc u14, u15 portd u16, u17 porte u55, u56, u57, u58 strb u18 reset u19 jumpers jp19 & jp20 on pos. 1-2 jp30?jp35 on pos. 1-2 adc pad8 on pos. u54 oscillator u23 32,768khz svld level implemented on the emulator are (01=1.3v), ( 10=2v),(11=2.3v). use the input called svld on the ice board to modify the svld level.
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 19 www.emmicroelectronic.com 4.5. em6617 porta pull-down portb pull-down portc pull-down swb cmos output r 17 r 18 r 21 r 22 r 25 r 26 r 19 r 20 r 23 r 24 r 27 r 28 level shifters porta u60, u61, u62, u63 portb u8, u9, u11, u12 portc u14, u15 swb u6 strb u18 reset u19 jumpers jp19 & jp20 on pos. 1-2 jp30?jp33 on pos. 1-2 jp34 & jp35 on pos. 2-3 adc pad8 on pos. u54 oscillator u23 3,2768mhz
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 20 www.emmicroelectronic.com 4.6. em6620 porta pull-down portb pull-down r 17 r 18 r 21 r 22 r 19 r 20 r 23 r 24 level shifters porta u60, u61, u62, u63 portb u8, u9, u11, u12 strb u18 jumpers jp19 & jp20 on pos. 1-2 jp13 on pos. 1-2 oscillator u23 3,2768mhz
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 21 www.emmicroelectronic.com 4.7. em6621, em6622, em6625, em6626 porta pull-down portb pull-down serial port pull-down r 39 r 38 r 40 r 41 r 17 r 18 r 21 r 22 r 19 r 20 r 23 r 24 level shifters porta u60, u61, u62, u63 portb u8, u9, u11, u12 serial port u6, u7, u50 strb u18 reset u19 jumpers jp19 & jp20 on pos. 1-2 jp13 on pos. 1-2 oscillator u23 3,2768mhz 6621/22/25/26 u53 4,096 mhz 6625/26
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 22 www.emmicroelectronic.com 4.8. em6640 porta pull-down portb pull-down portc = porte pull-down r 154 r 153 r 155 r 156 r 17 r 18 r 21 r 22 r 19 r 20 r 23 r 24 level shifters porta u60, u61, u62, u63 portb u8, u9, u11, u12 portc u55, u56, u57, u58 strb u18 reset u19 jumpers jp19 & jp20 on pos. 1-2 jp13 on pos. 1-2 synthesiser u53 spg8640an
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 23 www.emmicroelectronic.com 4.9. em6580, em6680, em6682 pull-down pull-up porta bit 0 r28 r2 porta bit 1 r27 r1 porta bit 2 r25 r3 porta bit 3 r26 r4 porta bit 4 r24 (default) r8 porta bit 5 r23 r5 note: r24 or r8 not both at the same time. r 1 r 2 r 5 r 22 r 25 r 26 r 3 r 4 r 23 r 24 r 27 r 28 level shifters porta u60, u61, u62, u63 portb u8, u9, u11, u12 portc u14,u15 strb u18 reset u19 jumpers jp19 & jp20 on pos. 1-2 jp30-jp35 on pos. 1-2 adc pad8 on pos. u54 oscillator u23 4.096mhz u53 8mhz adc pa4 extvcheck on din svld on ain (svld value level 4 1.10v in the emulator instead 1.20v)
EME66XX hardware description copyright ? 2005, em microelectronic-marin sa 24 www.emmicroelectronic.com 5. em66xx emulator upgrade procedure when changing from one emulator system to another or upgrading the emulator the following procedure should be performed. 1. switch off power and remove power cable and rs-232 cable at the rear of the system. 2. remove the four retaining screws on the front panel. 3. remove front panel. 4. slide emulator system board forward and out of the housing. 5. at the rear of the board is lo cated an 8 pin dip module at u42. 6. carefully remove this device from it s socket and replace it with the new rom. 7. slide board back into housing and replace front panel with retaining screws. 8. reconnect power and rs-232 cables. 9. switch on system and ensure that when the monitor connects to the emulator that both the debug and break led?s are illuminated. 10. the emulator should now be upgraded. em microelectronic-marin sa (em) makes no warranty for the us e of its products, other than those expressly contained in the company's standard warranty wh ich is detailed in em's general terms of sale located on the company's web site. em assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herei n at any time without notic e, and does not make any commi tment to update the information contained herein. no licenses to patents or other intellectual pr operty of em are granted in c onnection with the sale of em products, expressly or by implications. em's products are not authorized for use as components in life support devices or systems. ? em microelectronic-marin sa, 10/05, rev. 2.8

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