基于单片机的交通灯控制系统单片机毕业论文外文文献翻译及原文Word格式.docx

基于单片机的交通灯控制系统单片机毕业论文外文文献翻译及原文Word格式.docx

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外文文献翻译

文献、资料中文题目：

基于单片机的交通灯控制系统

文献、资料英文题目：

Structureandfunction

oftheMCS-51series

文献、资料来源：

文献、资料发表（出版）日期：

院（部）：

专业：

通信工程

班级：

姓名：

学号：

指导教师：

翻译日期：

2017.02.14

毕业设计文献资料翻译

（原文及译文）

原文名称：

StructureandfunctionoftheMCS-51series

课题名称：

基于单片机的交通灯控制系统

StructureandfunctionoftheMCS-51seriesone-chipcomputerMCS-51isanameofapieceofone-chipcomputerserieswhichIntelCompanyproduces.Thiscompanyintroduced8top-gradeone-chipcomputersofMCS-51seriesin1980afterintroducing8one-chipcomputersofMCS-48seriesin1976.Itbelongtoalotofkindsthislineofone-chipcomputerthechipshave,suchas8051,8031,8751,80C51BH,80C31BH,etc.,theirbasiccomposition,basicperformanceandinstructionsystemareallthesame.8051dailyrepresentatives-51serialone-chipcomputers.

Aone-chipcomputersystemismadeupofseveralfollowingparts:

（1）Onemicroprocessorof8（CPU）.

（2）AtslicedatamemoryRAM（128B/256B）,itusenotdepositingnotcanreading/datathatwrite,suchasresultnotmiddleofoperation,finalresultanddatawantedtoshow,etc.（3）ProcedurememoryROM/EPROM（4KB/8KB）,isusedtopreservetheprocedure,someinitialdataandforminslice.ButdoesnottakeROM/EPROMwithinsomeone-chipcomputers,suchas8031,8032.（4）Four8runsidebysideI/OinterfaceP0fourP3,eachmouthcanuseasintroduction,mayuseasexportingtoo.（5）Twotimer/counter,eachtimer/countermaysetupandcountintheway,usedtocounttotheexternalincident,cansetupintoatimingwaytoo,andcanaccordingtocountorresultoftimingrealizethecontrolofthecomputer.（6）Fivecutoffcuttingoffthecontrolsystemofthesource.（7）OneallduplexserialI/OmouthofUART（universalasynchronousreceiver/transmitter（UART））,isitrealizeone-chipcomputerorone-chipcomputerandserialcommunicationofcomputertousefor.（8）Stretchoscillatorandclockproducecircuit,quartzcrystalfinelytuneelectriccapacityneedouter.Allowoscillationfrequencyas12megahertznowatmost.Everytheabove-mentionedpartwasjoinedthroughtheinsidedatabus.Amongthem,CPUisacoreoftheone-chipcomputer,itisthecontrolofthecomputerandcommandcentre,madeupofsuchpartsasarithmeticunitandcontroller,etc..Thearithmeticunitcancarryon8personsofarithmeticoperationandunitALUoflogicoperationwhileincludingone,the1storingdevicetemporariesof8,storingdevice2temporarily,8'

saccumulationdeviceACC,registerBandprocedurestateregisterPSW,etc.PersonwhoaccumulateACCcountby2inputendsenteredofcheckingetc.temporarilyasoneoperationoften,comefrompersonwhostore1operationisitisitmakeoperationtogoontocounttemporarily,operationresultandloopbackACCwithanotherone.Inaddition,ACCisoftenregardedasthetransferstationofdatatransmissionon8051inside.Thesameasgeneralmicroprocessor,itisthebusiestregister.Helprememberingthatagreeingwithaexpressintheorder.Thecontrollerincludestheprocedurecounter,theorderisdeposited,theorderdeciphering,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,usingformiddleresulttodepositoperation,thedataarestoredtemporarilyandthedataarebuffered.InRAMofthis128B,thereisunitof32bytesthatcanbeappointedasthejobregister,thisandgeneralmicroprocessorisdifferent,8051sliceRAMandjobregisterrankoneformationthesametoarrangethelocation.ItisnotverythesamethatthememoryofMCS-51seriesone-chipcomputerandgeneralcomputerdisposesthewayinaddition.Generalcomputerforfirstaddressspace,R