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ID:35604372
大小:1.22 MB
页数:38页
时间:2019-03-31
《AT89C51单片机毕业论文中英文资料对照外文翻译文献》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、AT89C51单片机毕业论文中英文资料对照外文翻译文献英文原文DescriptionTheAT89C51isalow-power,high-performanceCMOS8-bitmicrocomputerwith4KbytesofFlashProgrammableandErasableReadOnlyMemory(PEROM)and128bytesRAM.ThedeviceismanufacturedusingAtmel’shighdensitynonvolatilememorytechnologyandiscompatiblewiththeindus
2、trystandardMCS-51™instructionsetandpinout.Thechipcombinesaversatile8-bitCPUwithFlashonamonolithicchip,theAtmelAT89C51isapowerfulmicrocomputerwhichprovidesahighlyflexibleandcosteffectivesolutiontomanyembeddedcontrolapplications.Features:•CompatiblewithMCS-51™Products•4KBytesofIn-S
3、ystemReprogrammableFlashMemory•Endurance:1,000Write/EraseCycles•FullyStaticOperation:0Hzto24MHz•Three-LevelProgramMemoryLock•128x8-BitInternalRAM•32ProgrammableI/OLines•Two16-BitTimer/Counters•SixInterruptSources•ProgrammableSerialChannel•LowPowerIdleandPowerDownModesTheAT89C51pr
4、ovidesthefollowingstandardfeatures:4KbytesofFlash,128bytesofRAM,32I/Olines,two16-bittimer/counters,afivevectortwo-levelinterruptarchitecture,afullduplexserialport,on-chiposcillatorandclockcircuitry.Inaddition,theAT89C51isdesignedwithstaticlogicforoperationdowntozerofrequencyandsu
5、pportstwosoftwareselectablepowersavingmodes.TheIdleModestopstheCPUwhileallowingtheRAM,timer/counters,serialportandinterruptsystemtocontinuefunctioning.ThePowerDownModesavestheRAMcontentsbutfreezestheoscillatordisablingallotherchipfunctionsuntilthenexthardwarereset.BlockDiagramPin
6、Description:VCCSupplyvoltage.GNDGround.Port0Port0isan8-bitopendrainbidirectionalI/Oport.AsanoutputporteachpincansinkeightTTLinputs.Whenisarewrittentoport0pins,thepinscanbeusedashighimpedanceinputs.Port0mayalsobeconfiguredtobethemultiplexedloworderaddress/databusduringaccessestoex
7、ternalprogramanddatamemory.InthismodeP0hasinternalpullups.Port0alsoreceivesthecodebytesduringFlashprogramming,andoutputsthecodebytesduringprogramverification.Externalpullupsarerequiredduringprogramverification.Port1Port1isan8-bitbidirectionalI/Oportwithinternalpullups.ThePort1out
8、putbufferscansink/sourcefourTTLinputs.Wh
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