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general description amuleteasyguibrowserchipisaspecial purposemicrocontrollerthatisoptimizedto executeamuletsguikernelandcomponent basedguifirmware,thechipisacombination lcdcontrollerchipandauserinterfacechip. thischipeliminatestheneedforcomplexcode todraweachpixelonalcd.thechiprenders guipagescontaininggraphicimages,amulet widgets,andotheruiobjectsdirectlytothelcd. thisletsyourembeddedmicrodoitsjobmore efficiently.thus,themainapplicationcanrunon asmallerprocessorwithlessramandrom,and codedevelopmentandmaintenancetimeis significantlyreduced. features requirements dedicated gui chip - managesthegui, 3.3vpowersupply interactswiththeuser,andcontrolsthe serialflash(atmel4megabitrecommended) lcdCfreesupyourmicro! asynchronoussram(128kx8minimum) html-based gui creation C createandedit clock/crystal(upto20mhz.) quicklyusingdraganddrophtmltools compiler included Cconvertsfromhtml, jpeg,andgifintosmall,quicklyexecutable amulet htmlpages processor independent Ceasilyinterfacesto mostmicrocontrollers(8/16/32bitanddsps) replaces traditional gui library Cno libraryporting,complexguiprogramming,or rtosrequired rs232 interface C upto115,200bps typical circuit block diagram crystal addr016 iclk data07 xtal /we /oe cp pixeld0d7 xsync disp m /fss ysyncsclk mosi /reset/pen/tssmiso sram display /reset flash /cs sck si so touch screen dclk /cs din dout /penirq
pin configurations overview theamuletisapowerful8bitmicrocontrollerfeat uringtaskspecificopcodes,registers,andmemory segments allowingforoptimizationofgraphicsrendering,i/ oprocessing,andgeneralpurposecomputing.theam uletis equippedwiththefollowingbuiltinperipherals: lcdcontroller microprocessor uart timers spimaster
theeasyguibrowserchiphas13dedicatedoutputl inesforlcdcontrolofvarioussizedsubvgadispl ays.the chipisabletodrivedifferentsizedisplaysbecau sethebiasvoltage,whichdeterminesthelcddrivi ngvoltage,is suppliedfromanexternalsource. supplyvoltage:3.3v+/10% applicablelcdduty:upto1/640 (adjustableinsingleincrements) block diagram timers microprocessor sclk mosi miso / fss / tss / css / bss / ss4 / ss5 / ss6 spi uart rxd txd lcd controller disp m ysync xsync cp pixel[7:0] xtal iclk / irq addr[16:0] data[7:0] /we /oe /reset prog mode cfs1 cfs2 ffbs tpc /pen ramtsti status ramtsto
pin descriptions i = 1 cmos input o = 1 cmos output i/o = 1 cmos input & output p = power supply 1 the i/o pins are only v cc tolerant and must adhere to the voltage levels dep icted in the dc characteristics section. all input pins have an internal pull-up resistor. pin name type pin number description v cc p 8,26,44,62,80 supplyvoltage.3.3v gnd p 2,14,20,32,38, 50,56,68,74 ground. iclk i 1 1 systemclock.referencerecommendedxtalconnection ssection. xtal o 3 1 systemclock.referencerecommendedxtalconnection ssection. /reset i 4 1,5,6 systemreset.alowlevelof10usorlongerwillge nerateasystemreset. /irq i 5 1 systeminterrupt.thispinshouldbeleftunconnect ed. pixeld0pixeld7 o 67,913,15 1 lcdpixeldata.thelcdpixeldatabuswidthcanbe setto1,2,4,or8databitsvia thehtmlcompilersoftware. disp o 16 1 lcdcontrolsignal(high=lcdon,low=lcdoff). xsync o 17 1 lcddatalatch.xsyncgoesactiveforoneclockper iodafterallthelcdpixel dataforthecurrentlinehasbeenshiftedout. thexsyncpolaritycanbe setviathehtmlcompilersoftware. m o 18 1 lcdcrystalpolarizationclock. cp o 19 1 lcdpixelclock.thecpsactiveedgecanbesetto arisingorfallingedgeviathe htmlcompilersoftware. ysync o 21 1 lcdfirstframesynchronization. addr0addr16 o 2225,3437, 3942,49,5154 1 systemaddressbus. data0data7 i/o 2831,4548 1 systemdatabus. /we o 27 1 memorywriteenabletodatabus(low=write). /oe o 43 1 memoryoutputenablefromdatabus(low=read). status o 33 1 internaloperationalstatus.thispinshouldbelef tunconnected. txd o 55 1 uartdataoutput. rxd i 57 1,5 uartdatainput. progmode i 58 1,2,5 systempowerupmode.alowlevelbootsamuletinr unmode.ahigh levelbootsamuletinprogrammode. cfs1 i 59 1 crystalfrequencyselection1.referencerecommende dxtalcomponent selectionssection. cfs2 i 60 1 crystalfrequencyselection2.referencerecommende dxtalcomponent selectionssection. ffbs i 61 1,3,5 flashprogrammingbaudrate.alowlevelsetsthef lashprogrammingrateto 19,200bps.ahighlevelsetstheflashprog rammingrateto115,200bps. tpc i 63 1,4,5 touchpanelcalibrationmode.alowleveldoesnot performacalibrationsession. ahighlevelperformsacalibrationsession . /pen i 64 1,5 touchpanelstatusifatouchpanelisused.alow levelindicatestouchpanelis pressed.ahighlevelindicatestouchpanelis notpressed.thispinshouldbeleft unconnectedifnotouchpanelisused. ramtsti i 65 1,4 externalsramtest.alowlevelinstructsamuletto performanexternalsram test.ahighlevelinstructsamulettonotper formanexternalsramtest.when applicable,resultsofexternalsramtestare outputonpin79(ramtsto). ft i 66 1 factorytest.thispinshouldbeleftunconnected. sclk o 67 1 spiclock. mosi o 69 1 spidataout. miso i 70 1,5 spidatain.
/fss o 71 1 flashslaveselect. /tss o 72 1 touchpanelslaveselect. /css o 73 1 contrastslaveselect. /bss o 75 1 backlightslaveselect. /ss4 o 76 1 spislaveselect4.thispinisforfutureuseand shouldbeleftunconnected. /ss5 o 77 1 spislaveselect5.thispinisforfutureuseand shouldbeleftunconnected. /ss6 o 78 1 spislaveselect6.thispinisforfutureuseand shouldbeleftunconnected. ramtsto o 79 1 externalsramtestresults.alowlevelindicatese xternalsramtestfailed.a highlevelindicatesexternalsramtestpassed. resultsareonlyvalidifexternal sramtestwasperformed.seeinputpinramtstid escriptionabove. 1 thei/opinsareonlyv cc tolerantandmustadheretothevoltagelevelsdep ictedinthedc characteristicssection. 2 inputpinisreaduponpowerup,asystemreset,or whenwritingtoflash. 3 inputpinisonlyreadwhenaflashprogrammingses sionhasbeeninitiated. 4 inputpinisreaduponpoweruporasystemreset. 5 internallypulledhigh.ifpinisexternallyconnec ted,interfaceittoanopencollectoroutput. 6 the/resetpinshouldbeheldlowforaminimumof 140msafterapplyingvcc. dc characteristics absolute maximum ratings voltageonvccwithrespecttoground... ... 0.3to+6.5v operatingtemperature ..... 20to+75oc storagetemperature ..... 60to+150oc solderingleadtemperature ..... 210oc soldering10sec. dc characteristics for vcc = 3.3v item symbol minimum typical maximum unit cmos input (v cc tolerant only) input"high"voltage v ih 2.0 v input"low"voltage v ih 0.8 v inputleakagecurrent i l 5 ua cmos output (v cc tolerant only) output"high"voltage v oh 2.8 v output"low"voltage v ol 0.2 v operatingfrequency f opr 10 16 20 mhz pullupresistor r i 37k 202k current v cc = 3.3v +/-10%, ground = 0, temperature = -20oc to +75oc item symbol condition minimum typical maximum unit operatingcurrent i cc 10mhz 10 ma operatingcurrent i cc 10mhzreset 7 ma operatingcurrent i cc 16mhz 16 ma operatingcurrent i cc 16mhzreset 10 ma
cpu memory access timing thecpuperformsbothreadandwriteaccessestome mory.ineithercase,alltimingparametersforcp u accessesarerelativetothefallingedgeofclk. allinputsignalsaresampledatthefallingedgeo fclkandall outputsignalstransitionaftersomedelayrelative tothefallingedgeofclk.inputholdtimesaret heamountof timeafterthefallingedgeofclkthatasignalmu stremainstable.outputholdtimesaretheminimum delaythat thesignalwillremainstableafterthefallingedg eofclk. line buffer memory access timing thelinebufferonlyperformsreadaccessestomemo ry.timingparametersforlinebufferreadsarere lativeto bothedgesofclk.allinputsignalsaresampleda ttherisingedgeofclkandalloutputsignalstra nsitionafter somedelayrelativetothefallingedgeofclk.in putholdtimesaretheamountoftimeaftertheris ingofclkthat asignalmustremainstable.outputholdtimesare theminimumdelaythatthesignalwillremainstab leafterthe fallingedgeofclk. label description value units t cyc clockcycleperiod 1/crystal ns t ad addressdelay 10 ns t ah addresshold 5 ns t ds0 writedatadelay 10 ns t dh0 writedatahold 5 ns t ws writeenabledelay 8 ns t wh writeenablehold 3 ns label description value units t ad addressdelay 10 ns t ah addresshold 5 ns t dsl readdatasetup 5 ns t dhl readdatahold 0 ns
recommended xtal connections recommended crystal component selections cfs1= 1 amuletpin59 cfs2= 1 amuletpin60 r1,r2=resistor(+/10%) c1,c2=capacitor(+/10%) z1 cfs1 cfs2 r1 r2 c1 c2 10mhz. high high 1m 1.8k 18pf 18pf 12mhz. low high 1m 1.0k 18pf 18pf 16mhz. high low 1m 560 15pf 15pf 20mhz. low low 1m 560 12pf 12pf 1 bydefault,cfs1andcfs2areinternallypulledhig h. label description value units t ad addressdelay 10 ns t ah addresshold 5 ns t ds2 readdatasetup 5 ns t dh2 readdatahold 5 ns
lcd timing chart of signals thefollowingsignaltimingassumes: cp=negativeedge(adjustableinhtmlcompilersoft ware). #ofdatabits=4(adjustableinhtmlcompilersoft ware). xsync=positivepolarity(adjustableinhtmlcompil ersoftware). maxbyte=4bytesofdataperlineandwiththefol lowingdatainthelinebuffer:20,21,22,23 cp pixel0-pixel3 xsync ysync m display data pattern thelcdcharacteristicssettingswithinthehtmlcom pilersoftwareletyouspecifyadisplayeitherby manufacturerorbysize(uptofullvgaresolution) .
external asynchronous sram sizeandspeedarethetwomostimportantfactorst oconsiderwhenselectinganexternalsramdevice. the minimumsizeofthesrammustbeatleast128kx8. theminimumspeedofthesramwillbeafunction ofthe systemclock.usethefollowingformulatocalculat etheminimumspeed: 1/(2*systemclock) forexample,adesignutilizingasystemclockof1 6mhz.wouldrequireansramdevicewithaspeedgr adeof atleast31ns. flash spi interface theamuletsupportsatmeldataflashforstorageof uhtmlpages.thedataflashmustbeorganizedwitha minimumof512pagesof264byteseach,plusonesr amdatabufferof264bytesliketheat45db011bsc devicefromatmel.thedataflashisenabledthrough achipselectpin(/cs)andaccessedviaathreew ireserial interfaceconsistingofaserialinput(si),serial output(so),andaserialclock(sck).thedatafla shiscontrolled byinstructionsfromtheamulet.thelistofinstru ctionsamuletusestointerfacetothedataflashis asfollows: mainmemorypageread(52h) mainmemorypagetobuffertransfer(53h) bufferwrite(84h) buffertomainmemorypageprogram(83h) statusregister(57h) ifyoudecidetouseaflashdeviceotherthanthe recommendedatmeldataflash,thenthedevicemusts upport thedataflashorganizationaswellasthefiveinst ructionsabove.pleasechecktheatmeldataflashda tasheet formoreinformationonthedevice. touch-screen spi interface amuletseasyguibrowserchipsupportsburrbrown touchscreencontrollers(ads7843andads7846)for decoding4wireresistivetouchpanels.thetouchs creencontrollerisenabledthroughachipselectp in(/cs)and accessedviaathreewireserialinterfaceconsisti ngofaserialinput(din),serialoutput(dout),a ndaserial clock(dclk).thefirmwaretodecodeaburrbrownt ouchscreencontrollerisincludedwiththeamulet os. belowisasampleschematiconhowaburrbrowntou chscreencontrollershouldbeinterfacedinatypi cal applicationrequiringtheuseofa4wireresistive touchpanelforuserinput. sram addr0addr16 data0data7 /we /oe
the4noisefilteringcapacitorsbetweenthetphea derandburrbrowndevicemayormaynotbeneeded, but itisrecommendedyoudesigntheminbecauseyouca nalwaysleavethemunpopulated.whetherornotyou needthenoisefilteringcapacitorswilldependon thesizeofthetouchpanel,aswellastheenviron mentinwhich theproductwillbeused.forapplicationsrequirin gtheuseofthenoisefilteringcapacitors,.01uf (+/10%) capacitorswillnormallyaddresstheproblem.
appendix: sample reference design 1 2 3 4 5 6 a b c d 6 5 4 3 2 1 d c b a title number revision size b date: 3may2006 sheetof file: drawn by: si 1 sck 2 /reset 3 /cs 4 /wp 5 vcc 6 gnd 7 so 8 u4 at45db041b c11 .22uf c10 .22uf c4 .22uf c7 4.7uf c9 .22uf c2 see table1 c3 see table1 r1 1m z1 crystal 3.3v vcc 1 x+ 2 y+ 3 x 4 y 5 gnd 6 vbat 7 in 8 dclk 16 /cs 15 din 14 busy 13 dout 12 /pen 11 vcc 10 vref 9 u2 ads7846 3.3v 3.3v c12 .22uf 3.3v /reset /reset c1 .22uf r2 100k 3.3v 3.3v c8 .22uf 3.3v 320x240 /pen xa fred power 1of1 a0 1 a1 2 a2 3 a3 4 ce 5 i/o0 6 i/o1 7 vcc 8 gnd 9 i/o2 10 i/o3 11 we 12 a4 13 a5 14 a6 15 a7 16 a8 17 a9 18 a10 19 a11 20 a12 21 i/o4 22 i/o5 23 vcc 24 gnd 25 i/o6 26 i/o7 27 oe 28 a13 29 a14 30 a15 31 a16 32 u6 is63 lv1024 sw1 swpb 1 2 3 4 5 6 7 8 sw2 swdip4 c1+ 2 c1 4 c2+ 5 c2 6 v+ 3 v 7 t1out 13 r1in 8 t1in 11 r1out 9 /invalid 10 /forceoff 16 /en 1 forceon 12 gnd 14 u7 max3221 c15 .22uf c14 .1uf c13 .1uf c16 .1uf c17 .1uf 1 6 2 7 3 8 4 9 5 j8 db9 3.3v c18 .1uf d1 2 d2 3 d3 4 d4 5 d5 6 d6 7 d7 8 d8 9 q1 18 q2 17 q3 16 q4 15 q5 14 q6 13 q7 12 q8 11 e1 1 e2 19 u5 74hct541 +5v 1 2 3 4 5 6 7 8 9 10 11 12 13 14 j1 con14 vee vadj l1 22uh c5 4.7uf c6 22uf r3 560k r4 33k /shdn 4 gnd 2 nfb 3 sw 1 vin 5 u8 lt1617 + c20 .22uf +5v vee vadj c23 22uf in 1 out 3 u10 lm2937es3.3 3.3v +5v 3.3v /pen progmode ffbs ramtsti tpc sclk mosi miso /bss /css d2 mbr0540 d1 mbr0540 /css mosi sclk 3.3v l 1 gnd 2 gnd 3 /cs 4 sdi 5 sclk 6 /shdn 7 vdd 8 w 9 h 10 u12 ad5200 c19 .22uf 3.3v mosi /bss sclk r5 14.3k r6 7.68k +5v c28 22uf tant vled backlight adj. l 1 gnd 2 gnd 3 /cs 4 sdi 5 sclk 6 /shdn 7 vdd 8 w 9 h 10 u14 ad5200 vout 1 adj 2 gnd 3 byp 4 shdn 5 gnd 6 gnd 7 vin 8 u13 lt1763 iclk 1 gnd 2 xtal 3 addr14 41 addr13 42 /oe 43 vcc 44 data7 45 data6 46 data5 47 data4 48 addr12 49 gnd 50 addr11 51 addr10 52 addr9 53 addr8 54 txd 55 gnd 56 rxd 57 progmode 58 cfs1 59 cfs2 60 ffbs 61 vcc 62 tpc 63 /pen 64 ramtst 65 ft 66 sclk 67 gnd 68 mosi 69 miso 70 /fss 71 /tss 72 /css 73 gnd 74 /bss 75 /ss4 76 /ss5 77 /ss6 78 ramtsto 79 vcc 80 /reset 4 /irq 5 pixel_d7 6 pixel_d6 7 vcc 8 pixel_d5 9 pixel_d4 10 pixel_d3 11 pixel_d2 12 pixel_d1 13 gnd 14 pixel_d0 15 disp 16 xsync 17 m 18 cp 19 gnd 20 ysync 21 addr7 22 addr6 23 addr5 24 addr4 25 vcc 26 /we 27 data3 28 data2 29 data1 30 data0 31 gnd 32 status 33 addr3 34 addr2 35 addr1 36 addr0 37 gnd 38 addr16 39 addr15 40 u1 agb64 lv01qc /reset contrast adj. c25 .01uf c24 .01uf 1 2 34 j2 con4 r7 see table1 see table1 amt9502 touch panel allshoreasi a32024a/asi c32024a edt ew32f10/ ew32f62 hantronixhdm32241 microtips mtgs322240 nanyalmaga_032_27 okaya rg320240f opt rexdmf50840nb shellysgm32024031 tianma tm320240dfg winstar wg320240a displaytech240320a listof manufacturesanddispl ays schematicsuppor ts 20mhz 16mhz freq. cfs1cfs2 00 10 01 11 12mhz 10mhz tabel1 crystall selection cfslinesa repulledhigh bydefault r7c2/c3 56012pf 56015pf 1.0k18pf 1.8k18pf 3.3v linesa repulledhigh bydefault /reset 1 reset 2 /mr 3 vcc 4 gnd 5 pfi 6 /pfo 7 nc 8 u3 max708s c26 .01uf c27 .01uf
item qty reference locations package description manufacturer manufacturer part # 1 1 r1 805 res,1m,1/10w,5% avx cr21105jt vishay/dale crcw0805105jrt1 koa rm73b2at105j 2 1 r2 805 res,100k,1/10w,5% avx cr21104jt vishay/dale crcw0805104jrt1 koa rm73b2at104j 3 1 r3 805 res,560k,1/10w,5% avx cr21564jt vishay/dale crcw0805564jrt1 koa rm73b2at564j 4 1 r4 805 res,33k,1/10w,5% avx cr21333jt vishay/dale crcw0805333jrt1 koa rm73b2at333j 5 1 r5 805 res,14.3k,1/10w,1% vishay/dale crcw 08051432frt1 6 1 r6 805 res,7.68k,1/10w,1% vishay/dale crcw 08057681frt1 7 1 r7 805 seetableonschematic 8 10 c1,c4,c8c12, 1206 cap,.22uf,16v,z5u,20% panasonic ecpu1c224ma5 c19,c20,c15 samsung cl31f224zaad vitramon vj12066224mxamt avx 12065e224mat2a 9 2 c6,c23 c cap,22uf,50v,elect nippon nace220m50v6.3x6.3tr 13 10 1 c5,c7 4x5.5can cap,4.7uf,25v,electrolitic, 20% nic nace4r7m35v4x5.5tr13 nichicon uwx1e4r7mcr1gb 11 2 c2,c3 1206 seetableonschematic avx 12065a200jat2a 12 5 c13,c14,c16 1206 cap,.1uf,50v,5% panasonic e cuv1h104kbw c17,c18 vitramon vj1206y10jxamt 13 4 c24c27 1206 cap,.01uf,50v vitramon vj1206 y103kxamt 14 1 c28 1206 cap,22uf,10v,10%,tant vishay 293d 226x9010c2t 15 2 d1,d2 sod123 diode,schottky,.5a,40v on mb r0540lt1 specialtyelect. fpchb04tt 16 1 l1 smd 22uh jwmiller pm43220m 17 1 z1 csm7 crystal,16mhz,20pf ecs ecs160205 p fox foxsd/16020/tr1k 18 1 sw1 6x3.7 momentarypushbutton panasonic evg ppba25 c&k pts635sl25sm 19 1 sw2 smd 4posdipswitch cts 2194lpst c&k sda04h0sk 20 1 j1 smd con,14pinzif jst 14festvkn 21 1 j2 smd con,4pinheader 22 1 j8 db9femaleconnector smp 317009f adamtech de09sl24 23 1 u8 sot23 lcdpowersupply linear lt1617es5 24 1 u2 ssop16 touchpanela/d burrbrown ads7846e 25 1 u4 soic8 dataflash,4mb,2.7v atmel at45db0 41bsc at45db041bsi 26 1 u1 pqfp80 amuletcontroller amulet agb64lv01 qc 27 1 u6 soj32 sram,128kx8,15ns issi is63lv102415k 28 1 u7 ssop16 rs232transceiver intersil icl3221 ca 29 1 u3 soic8 undervoltagedetector onsemi max708sesat 30 1 u13 8msop linearregulator linear lt1763cs8 31 1 u10 sot223 3.3vregulator national lm2937imp3.3 32 2 u12,u14 8msop spi,10kpot analogdevices ad5200brm10 33 1 u5 soic20 74hct541,bufferdriver st 74hct541m1r
recommended chip pad dimensions 90.945mil31.496mil 15mil 80mil 90.945mil 31.496mil
chip mechanicals 80 pqfp (14x20x2.7mm) symbol inch a 134mil max a1 10.0mil min a2 106mil nom b 15.0mil nom c 7.0mil nom d 913mil nom e 677mil nom e 31.496mil nom d1 787mil nom e1 551mil nom l 35.0mil nom l1 63.0mil nom y 4.0mil nom rev.foctober2007

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