51系列單片機(jī)的結(jié)構(gòu)和功能-外文資料翻譯

51列單片機(jī)的結(jié)和功能系在1976年引入8位MCS-48系列單片機(jī)了8MCS-系8051，，80C51BH，80C31BH用8051來(lái)表51系位CPU微處理）程序器ROM/EPROM中（4KB/8KB用ROM/如，，80c系列等）48排的/O并行口P0~P3，每個(gè)口可以用作輸入，也可以用作輸出2器器計(jì)）五）1行IO的（通器器UART在12v的振蕩頻率ALU算由18暫時(shí)存儲(chǔ)和2個(gè)8位的累。Acc是Acc往對(duì)8051內(nèi)的數(shù)據(jù)傳對(duì)8或16位

在芯片為1.2MHz—12MHz。為。在有ROM（RAM（數(shù)據(jù)存儲(chǔ)器，可以。8051為從0000H開(kāi)00FH，128B有32，8051的-51和RAM地址范圍會(huì)根據(jù)ROMROMRAM。8051的，排用16個(gè)地址口0000H為64KB，從0000H到含256B用8個(gè)地址用80511

問(wèn)ROM用問(wèn)RAM塊順序的MOVX語(yǔ)用MOV語(yǔ)句有個(gè)8并的I/O端口，分別為P0，，P2和P3是8位精確了32針。每一個(gè)/O個(gè)出口驅(qū)動(dòng)器這四個(gè)口就可作為雙向口常用I/O，P2高8位地址，P0口是一個(gè)公共兩用口，傳送輸出低8的地址和數(shù)據(jù)?？谟赑1，動(dòng)4個(gè)LS型TTL負(fù)有TTL或NMOS式的P1口1如8051單0000H從0000H的地址中RST引24倍即2的6v輸2

（6電示波器顯2.文文andoftheMCS-51theMCS-51seriesone-chipcomputerMCS-51anameofcomputerwhichIntelThiscompany8computersofseriesin1980introducingcomputersofMCS-48inItbelongtoofkindsthislineofone-chipcomputerchipshave,suchas8051,8751,80C51BH,80C31BH,etc.,theirand3

instructionthe8051dailyrepresentatives-51serialone-chipcomputers.systemmadeupseveralparts:1)microprocessor(CPU).(AtslicedataRAM(128B/256B),itusenotdeposittingnotcanthatwrite,suchresultnotoperation,resultanddatatoshow,(3)memoryROM/EPROM),usedtopreserveproceduredataandslice.ButdoesnotROM/EPROMone-chipsuchas,etc..4)FoursidesideinterfacefourP3,eachcanasintroductionasexporting(Twotimer/counter,timer/countermaytheway,usedtothesetuptimingwayandtocountoftimingthecomputer.6)cutoffcuttingoffcontrolofthesource(allduplexingserialmouthof(universal),itorcommunicationusefor.(oscillatorandclockelectriccapacityneedAllowoscillationfrequency12theabove-mentionedpartjoinedthroughdataCPUistheitofcomputeruparithmeticandcontrollerarithmeticunitcanon8ofALUoflogicwhileincludingone,the1ofstoring2temporarily,BprocedurePSW,ACCcountby2checkingetc.temporarilyasoneoperationoften,frompersonwho1isititgototemporarilyresultone.ACCisoftenastransferofdata8051ThesameasgeneralitistheHelprememberingagreeingAexpressesintheTheincludesthe,theordertheorderdecipher,theoscillatorandtimingcircuit,etc.Theprocedureismadeofcountertwo,toItisabyteaddressprocedurethetheIAwillcarriedoutPC.Thewhichitcanchange4

thedirectiontheprocedure.thecircuitinonlyquartzandfrequencyitsfrequencyrangeisitsof1.2MHZ.pulsesignal,beatsofnamelytheoftime.istheharmonythejustanorchestratobeatiscommanded.areROM(procedurememory,canonly)andRAMinslicesmemory,canitwrite)haveeachmemorywaytotheofmemoryslicememorycapacity4KB,from0000H,forpreservingtheofmemorydatamemory128B,address00FH,resultthedataaretemporarilyanddataarebufferedetc..InRAMofthis128B,thereisunitofthatasthejobregister,thisandgeneralmicroprocessordifferent,sliceRAMjobregisterthearrangethelocation.ItisnotthesamethememoryofMCS-51one-chipandcomputerforaddressspace,ROMandcandifferenttheofwill,addressesROMdistributingdifferentinaformation.Whilevisitingthememory,andanaddressMemoryROM,itcanbeRAMandbyvisitingtheorderkindofstructureiscalledtheofintomemoryspacedatamemoryspaceonthephysicsarefourspacesTheanddataspaceandofkindofanddatamemoryformdatamemory,calledHarvardButuseanglefromusers,spaceisdividedinto(1)Inthearrangeof,0000Hoflocationinunisontheslice(use16addresses).(2)datamemoryofthefrom0000H16addresses)tootothelocation.(3)memoryspaceof256B(use8above-mentionedmemoryspacefordistinguishingdesigningthesymboldifferentdatainthe5

instructionofCPUROMMOVC,usestheslice,RAMordercomputerfour8callandEach8accuratealtogether.Everyonelineintroductionandindependently.Eachportincludeslatch(namelyregister),onethedriverintroductionbuffer.datacanlatchwhendatacanbufferintroduction,butfourfunctionofpasswaytheseamongthesystemmemoryoutsidefourporttwo-waymouthofcommonuse.Expandthesystemmemorymouthseemouthtwo-waybus,theintroduction8lowaddressesanddata/exporttimesharingOutputP3ofmouth,ofP1,connectinsideofdrawing,everydrive4LStoAswhileinputtingthemouth,TTLorNMOScircuitP1ofasP3mouthinanormal.drawonoutputgradeofthemhave,openwaycollectordrain-sourceisiturgetoopenahaveofdrawingouterly.two-waymouthstoo.Whentheconductinput,writeportlatchwithAs80C51one-chipcomputer,portcanonlyoffermilliampereoutputitoutputmouthurgingoneordinarybasingoftransistoras,aamongtheportandbaseinordertothewhilelevelfromexportingBeingthethronetheofofancomputer.toturn0000Hinitially,theone-chiptothefromExceptthatonesthatenterthesystemareinitializednormally,asprocedureitmistakesoroperatetherearen'tmistake,inextricatefromapredicament,beandthethronekeytoo.ItisaninputendwhichisrestoredtothethroneRSTpin.Restoretothethroneeffective,should242cycles)theaboveitseffectivetimes.If6offrequencyutilizationtoshake,tothesignalshould4tofinishrestoringtotheandProducelogicpictureofcircuitwhichisrestoredthe6

signal:tocircuittwopartsoutsidetheentirely.thatcircuitthesignal(RSThandSchmitt'sthethronecircuitto,Schmitttriggerconstantly,ofcycleone,thengotrestoredtheandoperatedthenecessarysignaltheresistanceofcircuitelectriccapacityparametersuitablefor6canisitrestorethethronesignalhighdurationgreater2machinetoguarantee.BeinginthecircuitisPiecesofsystemcouldrunning,shouldittheCheckingone'sheadmonitorthepinthepushrestoredthekey,thewaveformobservesandenoughrangecanalsoitrestoretothecircuitgroupholdingcarrytochange.8CPU7

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MQ-2型半導(dǎo)應(yīng)快用STC12C5410AD了轉(zhuǎn)換目STC12C5410ADMQ-2，，傳Abstractthemethod--sensortechnology,itsdomainisandwidespread,ismoreandrequest,themoreurgent.Thebecomeweighsoneofnationallevelofimportantsymbols.Therefore,andgraspskindoftheprinciplethecharacteristicimportant.10

Intotoandunderstanding,inparticularsmogresearchasitstheuse,onpractical,widespreadthemodelprincipledesignedthissystem.Thisarticlethemonolithiccircuitunionsensordevelophasdesignedthissupervisorysystem.presentpaperthesmogthemonolithiccircuitunifiesasthecoreandtechnology,designskindofsmogalarmapparatus.Inwhichthe2M007resistancesmogrealizationsmogthethehigh,responds,theandonmerits,thepriceisinexpensive,theservicelifeislong.SelectstheSTC12C5410ADmonolithicitsconformityhardwaremultiplier,resourcesandonPDMkeyer,hashighlowmeritsandsopowerloss,ultraisthesimilartechnologyquitehighproduct.MaytheSTC12C5410ADmonolithiccircuit2M007semiconductorgasasthedesignalarmapparatustoreporttothepolice,thebreakdownfromdiagnosis,demonstrated,reportstothethetimedelaytoandwithfunctionsandsomachinecorrespondence.Iskindthe11

theeasytooperate,thepriceinexpensive,thesmogalarmcertainpracticalvalue.Keyword:Smog,alarmapparatus,STC12C5410,sensor具有高集成度等優(yōu)點(diǎn)，開(kāi)發(fā)設(shè)計(jì)了一種基于AT89C51為了提高系統(tǒng)的靈敏度和準(zhǔn)確性器MQ-7CO）控制電路進(jìn)行報(bào)關(guān)詞CarbonisdesignedonAT89C51alevelofintegration.Inordertoimproveand,theused.Thealarmismonitoredon-time,permittedvaleoftheofcarbonexceeded,thecircuitwillalarm,anditis-externalvalvewithKey：carbonmonoxide;alarm;electrochemicalsensor1.能征述12

能CMOS8在程存公司高密度非易失性存儲(chǔ)器技術(shù)制造，與Flash芯靈8和在系統(tǒng)可編Flash，AT89S52為眾多嵌入式控制應(yīng)用系統(tǒng)提供8k字節(jié)字節(jié)RAM位，個(gè)數(shù)據(jù)指針，三個(gè)