单片机英文参考文献.docx

单片机英文参考文献.docx

《单片机英文参考文献.docx》由会员分享，可在线阅读，更多相关《单片机英文参考文献.docx（5页珍藏版）》请在冰豆网上搜索。

单片机英文参考文献

StructureandfunctionoftheMCS-51series

StructureandfunctionoftheMCS-51seriesone—chipcomputerMCS-51isanameofapieceofone-chipcomputerserieswhichIntelCompanyproduces.Thiscompanyintroduced8top—gradeone-chipcomputersofMCS—51seriesin1980afterintroducing8one—chipcomputersofMCS-48seriesin1976。

Itbelongtoalotofkindsthislineofone-chipcomputerthechipshave,suchas8051，8031，8751,80C51BH,80C31BH，etc。

theirbasiccomposition，basicperformanceandinstructionsystemareallthesame.8051dailyrepresentatives-51serialone-chipcomputers。

Anone—chipcomputersystemismadeupofseveralfollowingparts：

（1）Onemicroprocessorof8（CPU）。

（2）AtslicedatamemoryRAM（128B/256B）,itusenotdeposittingnotcanreading/datathatwrite,suchasresultnotmiddleofoperation，finalresultanddatawantedtoshow，etc。

（3）ProcedurememoryROM/EPROM（4KB/8KB），isusedtopreservetheprocedure,someinitialdataandforminslice。

ButdoesnottakeROM/EPROMwithinsomeone—chipcomputers,suchas8031,8032，80C,etc.。

（4）Four8runsidebysideI/OinterfaceP0fourP3，eachmouthcanuseasintroduction，mayuseasexportingtoo.（5）Twotimer/counter,eachtimer/countermaysetupandcountintheway，usedtocounttotheexternalincident,cansetupintoatimingwaytoo,andcanaccordingtocountorresultoftimingrealizethecontrolofthecomputer.（6）Fivecutoffcuttingoffthecontrolsystemofthesource。

（7）OneallduplexingserialI/OmouthofUART（universalasynchronousreceiver/transmitter（UART））,isitrealizeone-chipcomputerorone—chipcomputerandserialcommunicationofcomputertousefor.（8）Stretchoscillatorandclockproducecircuit，quartzcrystalfinelytuneelectriccapacityneedouter。

Allowoscillationfrequencyas12megahertasnowatmost。

Everytheabove-mentionedpartwasjoinedthroughtheinsidedatabus.Amongthem,CPUisacoreoftheone—chipcomputer，itisthecontrolofthecomputerandcommandcentre，madeupofsuchpartsasarithmeticunitandcontroller，etc。

.Thearithmeticunitcancarryon8personsofarithmeticoperationandunitALUoflogicoperationwhileincludingone,the1storingdevicetemporariliesof8，storingdevice2temporarily，8’saccumulationdeviceACC，registerBandprocedurestateregisterPSW,etc.PersonwhoaccumulateACCcountby2inputendsenteredofcheckingetc.temporarilyasoneoperationoften,comefrompersonwhostore1operationisitisitmakeoperationtogoontocounttemporarily,operationresultandloopbackACCwithanotherone.Inaddition,ACCisoftenregardedasthetransferstationofdatatransmissionon8051inside.Thesameasgeneralmicroprocessor，itisthebusiestregister。

HelprememberingthatagreeingwithAexpressesintheorder.Thecontrollerincludestheprocedurecounter，theorderisdepositted，theorderdecipher，theoscillatorandtimingcircuit，etc.Theprocedurecounterismadeupofcounterof8fortwo，amountsto16.Itisabyteaddresscounteroftheprocedureinfact，thecontentisthenextIAthatwillcarriedoutinPC.Thecontentwhichchangesitcanchangethedirectionthattheprocedurecarriesout。

Shakethecircuitin8051one—chipcomputers，onlyneedouterquartzcrystalandfrequencytofinelytunetheelectriccapacity,itsfrequencyrangeisits12MHZof1.2MHZ.Thispulsesignal，as8051basicbeatsofworking，namelytheminimumunitoftime.8051isthesameasothercomputers,theworkinharmonyunderthecontrolofthebasicbeat，justlikeanorchestraaccordingtothebeatplaythatiscommanded。

ThereareROM（procedurememory,canonlyread）andRAMin8051slices（datamemory，canisitcanwrite）twotoread，theyhaveeachindependentmemoryaddressspace，disposewaytobethesamewithgeneralmemoryofcomputer。

Procedure8051memoryand8751sliceprocedurememorycapacity4KB，addressbeginfrom0000H,usedforpreservingtheprocedureandformconstant.Data8051-87518031ofmemorydatamemory128B，addressfalse00FH，useformiddleresulttodepositoperation,thedataarestoredtemporarilyandthedataarebufferedetc。

。

InRAMofthis128B,thereisunitof32bytesesthatcanbeappointedasthejobregister，thisandgeneralmicroprocessorisdifferent，8051sliceRAMandjobregisterrankoneformationthesametoarrangethelocation.ItisnotverythesamethatthememoryofMCS-51seriesone-chipcomputerandgeneralcomputerdisposesthewayinaddition。

Generalcomputerforfirstaddressspace，ROMandRAMcanarrangeindifferentspacewithintherangeofthisaddressatwill,namelytheaddressesofROMandRAM,withdistributingdifferentaddressspaceinaformation.Whilevisitingthememory，correspondingandonlyanaddressMemoryunit，canROM，itcanbeRAMtoo，andbyvisitingtheordersimilarly.ThiskindofmemorystructureiscalledthestructureofPrinceton。

8051memoriesaredividedintoprocedurememoryspaceanddatamemoryspaceonthephysicsstructure,therearefourmemoryspacesinall：

Theprocedurestoresinoneanddatamemoryspaceoutsidedatamemoryandoneinprocedurememoryspaceandoneoutsideone,thestructureformsofthiskindofproceduredeviceanddatamemoryseparatedformdatamemory,calledHarvardstructure.Butusetheanglefromusers,8051memoryaddressspaceisdividedintothreekinds：

（1）Intheslice,arrangeblocksofFFFFH，0000Hoflocation,inunisonoutsidetheslice（use16addresses）。

（2）Thedatamemoryaddressspaceoutsideoneof64KB,theaddressisarrangedfrom0000H64KBFFFFH（with16addresses）tootothelocation.（3）Datamemoryaddressspaceof256B（use8addresses）。

Threeabove-mentionedmemoryspaceaddressesoverlap,fordistinguishinganddesigningtheordersymbolofdifferentdatatransmissionintheinstructionsystemof8051:

CPUvisitslice，ROMorderspendMOVC，visitblockRAMorderusesMOVXoutsidetheslice，RAMorderusesMOVtovisitinslice。

8051one-chipcomputerhavefour8walkabreastI/Oport，callP0，P1,P2andP3.Eachportis8accuratetwo-waymouths,accountsfor32pinsaltogether.EveryoneI/Olinecanbeusedasintroductionandexportedindependently。

Eachportincludesalatch（namelyspecialfunctionregister）,oneexportsthedriverandaintroductionbuffer.Makedatacanlatchwhenoutputting,datacanbufferwhenmakingintroduction，butfourfunctionofpasswaytheseself—same.fourportthesemayserveasaccuratetwo—waymouthofI/Oincommonuse。

Expandamongthesystemofmemoryoutsidehavingslice，P2mouthseehigh8addressoff;P0mouthisatwo-waybus，sendtheintroductionof8lowaddressesanddata/exportintimesharing

Outputgrade，P3ofmouth,P1ofmouth，connectwithinsidehaveloadresistanceofdrawing,everyoneoftheycandrive4ModelLSTTLloadtooutput.Aswhileinputtingthemouth，anyTTLorNMOScircuitcandriveP1of8051one—chipcomputersasP3mouthinanormalway.Becausedrawresistanceonoutputgradeofthemhave,canopenawaycollectortooordrain—sourceresistanceisiturgetoopenaway，donotneedtohavetheresistanceofdrawingouterly。

Mouthsareallaccuratetwo-waymouthstoo。

Whentheconductisinput,mustwritethecorrespondingportlatchwith1first。

Asto80C51one-chipcomputer,portcanonlyoffermilliampereofoutputelectriccurrents,isitoutputmouthgowhenurgingoneordinarybasingoftransistortoregardas，shouldcontactaresistanceamongtheportandtransistorbase，inordertotheelectricitywhilerestrainingthehighlevelfromexportingP1~P3Beingrestoredtothethroneistheoperationofinitializingofanone—chipcomputer。

ItsmainfunctionistoturnPCinto0000Hinitially,maketheone—chipcomputerbegintoholdtheconductprocedurefromunit0000H。

Exceptthattheonesthatenterthesystemareinitializednormally,asbecauseprocedureoperateitmakemistakesoroperatetherearen'tmistake，inordertoextricateoneselffromapredicament,needtobepressedandrestoredtothethronethekeyrestartingtoo.Itisaninputendwhichisrestoredtothethronethesignalin8051ChinaRSTpin.Restoretothethronesignalhighleveleffective，shouldsustain24shakecycle（namely2machinecycles）theaboveitseffectivetimes.If6offrequencyofutilizationbrillianttoshake，restoretothethronesignaldurationshouldexceed4delicatetofinishrestoringtothethroneandoperating.Producethelogicpictureofcircuitwhichisrestoredtothethronethesignal：

Restoretothethronethecircuitandincludetwopartsoutsideinthechipentirely。

Outsidethatcircuitproducetorestoretothethronesignal（RST）handovertoSchmitt’strigger,restoretothethronecircuitsampletooutput，SchmittoftriggerconstantlyineachS5P2，machineofcycleinhavingonemore，thenjustgotandrestoredtothethroneandoperatedthenecessarysignalinsidly。

Restoretothethroneresistanceofcircuitgenerally,electriccapacityparametersuitablefor6brillianttoshake,canisitrestoretothethronesignalhighleveldurationgreaterthan2machinecyclestoguarantee。

Beingrestoredtothethroneinthecircuitissimple，itsfunctionisveryimportant.Piecesofone-chipcomputersystemcouldnormalrunning，shouldfirstcheckitcanrestoretothethronenotsucceeding。

Checkingandcanpopone'sheadandmonitorthepinwiththeoscillographtentatively,pushandisrestoredtothethronethekey,thewaveformthatobservesandhasenoughrangeisexported（instantaneous），canalsothroughisitrestoretothethronecircuitgroupholdingvaluecarryontheexperimenttochange.

译文

51系列单片机的功能和结构

MCS51电脑芯片的结构和功能。

MSC51是因特尔公司生产的一系列电脑芯片的名称.这家公司在1976年推出了一款8级的电脑芯片MCS48