簡(jiǎn)談51單片機(jī)外文翻譯

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1、簡(jiǎn)談51單片機(jī)外文翻譯簡(jiǎn)談51單片機(jī)外文翻譯導(dǎo)讀：51單片機(jī)外文翻譯..vectortanceCMOS8-bitmicroputermableanderasablereadonlymemory(PEROM).ThedeviceismanufacturedusingATMEL’shigh-densitynonvolatilememorytechnologyandispatibleonolithicchip,theATMELAT89C51isapoicroputeranyembeddedcontrolapplications.描述AT89C51是一個(gè)低電壓，高性能CMOS8位單片機(jī)帶有4

2、K字節(jié)的可反復(fù)擦寫(xiě)的程序存儲(chǔ)器（PENROM）。這種設(shè)備采用ATMEL公司的高密度、不容易丟失存儲(chǔ)技術(shù)生產(chǎn)，并且能夠與MCS-51系列的單片機(jī)兼容。片內(nèi)含有8位處理器和閃爍存儲(chǔ)單元，有較強(qiáng)的功能的ATMELAT89C51單片機(jī)提供了一個(gè)高度靈活和成本效益的解決許多嵌入式控制方案。FunctioncharacteristicTheAT89C51providesthefolloer/counters,afivevectortwo-levelinterruptarchitecture,afullduplexserialport,on-chiposcillatorandclockcircui

3、try.Inaddition,theAT89C51isdesignedwithstaticlogicforoperationdowntozerofrequencyandsupportstwosoftwareselect345678910簡(jiǎn)談51單片機(jī)外文翻譯導(dǎo)讀：51單片機(jī)外文翻譯..D：Ground.Port0：Port0isan8-bitopen-drainbi-directionalI/Oport.Asanoutputport,eachpincansinkeightTTLinputs.odestopstheCPUer/counters,serialportandinterrup

4、tsystemtocontinuefunctioning.ThePopedanceinputs.Port0mayalsobeconfiguredtobethemultiplexedloanddatamemory.InthismodeP0hasinternalpullups.Port0alsoreceivesthecodebytesduringFlashprogramming,andoutputsthecodebytesduringprogramverification.Externalpullupsarerequiredduringprogramverification.引腳描述VC

5、C：電源電壓GND：地P0口：P0口是一組8位漏極開(kāi)路雙向I/O口.作為輸出口時(shí)，每一個(gè)管腳都能夠驅(qū)動(dòng)8個(gè)T345678910簡(jiǎn)談51單片機(jī)外文翻譯導(dǎo)讀：51單片機(jī)外文翻譯..TTLinputs.ingandverification.P1口：P1口一個(gè)8位雙向I/O口帶內(nèi)部上拉電阻，P1的輸出緩沖級(jí)可驅(qū)動(dòng)4個(gè)TTL輸入。對(duì)端口寫(xiě)“1s”，通過(guò)內(nèi)部的電阻把端口拉到高電平.可作為輸入口,因?yàn)閮?nèi)部有電阻，某個(gè)引腳被外部信號(hào)拉低時(shí)輸出一個(gè)電流。閃爍編程時(shí)和程序校驗(yàn)時(shí)，P1口接收低8位地址。-4-Port2Port2isan8-bitbi-directionalI/Oportitsthehig

6、h-orderaddressbyteduringfetchesfromexternalprogrammemoryandduringaccessestoexternaldatamemorythatuse16345678910簡(jiǎn)談51單片機(jī)外文翻譯導(dǎo)讀：51單片機(jī)外文翻譯..1”時(shí)，它們被內(nèi)部電阻拉到高電平并可作為輸入端時(shí)，被外部拉低的P3口將用電阻輸出電流。P3口除了作為一般的I/O口外，更12345678910-bitaddresses.Inthisapplication,itusesstronginternalpullupsitting1s.Duringaccessestoexte

7、rnaldatamemorythatuse8-bitaddresses,Port2emitsthecontentsoftheP2SpecialFunctionRegister.Port2alsoreceivesthehigh-orderaddressbitsandsomecontrolsignalsduringFlashprogrammingandverification.P2口：P2口是一個(gè)內(nèi)部帶有上拉電阻的8位雙向I/O口，P2的輸出緩沖級(jí)可驅(qū)動(dòng)4個(gè)T