文档介绍：StructureandfunctionoftheMCS-51seriesStructureandfunction oftheMCS-51seriesone-puterMCS-51isanameofapieceofone- 8top-gradeone-putersofMCS-51seriesin1980afterintroducing8one-putersofMCS--puterthechipshave,suchas8051,8031,8751,80C51BH,80C31BH,etc.,position, representatives- 51serialone- one-putersystemismadeupofseveralfollowingparts:(1)Onemicroprocessorof8(CPU).(2)AtslicedatamemoryRAM(128B/256B),itusenotdeposittingnotcanreading/datathatwrite,suchasresultnotmiddleofoperation,finalresultanddatawantedtoshow,etc.(3)ProcedurememoryROM/EPRC(4KB/8KB),isusedtopreservetheprocedure,-puters,suchas8031,8032,80C,etc..(4)Four8runsidebysideI/OinterfaceP0fourP3,eachmouthcanuseasintroduction ,mayuseasexportingtoo.(5)Twotimer/counter,eachtimer/countermaysetupandcountintheway,usedtocounttotheexternalincident,cansetupintoatimingwaytoo,(universalasynchronousreceiver/transmitter (UART)),isitrealizeone-puteror one-putertousefor.(8)Stretchoscillatorandclockproducecircuit,-,CPUisacoreoftheone-puter,mandcentre,madeupofsuchpartsasarithmeticunitandcontroller,etc..Thearithmeticunitcancarryon8personsofarithmeticoperationandunitALUoflogicoperationwhileincludingone,the1storingdevicetemporariliesof8,storingdevice2temporarily,8',registerBandprocedurestateregisterPSW,,,ACCis often regardedasthetransfer stationofdatatransmission on8051inside .Thesameasgeneralmicroprocessor,