外文原文
Structure and function of the MCS-51 series
Structure and function of the MCS-51 series one-chip computer MCS-51 is a name of a piece of one-chip computer series which Intel Company produces. This company introduced 8 top-grade one-chip computers of MCS-51 series in 1980 after introducing 8 one-chip computers of MCS-48 series in 1976. It belong to a lot of kinds this line of one-chip computer the chips have,such as 8051, 8031, 8751, 80C51BH, 80C31BH,etc., their basic composition, basic performance and instruction system are all the same. 8051 daily representatives- 51 serial one-chip computers .
An one-chip computer system is made up of several following parts: ( 1) One microprocessor of 8 (CPU). ( 2) At slice data memory RAM (128B/256B),it use not depositting not can reading /data that write, such as result not middle of operation, final result and data wanted to show, etc. ( 3) Procedure memory ROM/EPROM (4KB/8KB ), is used to preserve the procedure , some initial data and form in slice. But does not take ROM/EPROM within some one-chip computers, such as 8031 , 8032, 80C ,etc.. ( 4) Four 8 run side by side I/O interface P0 four P3, each mouth can use as introduction , may use as exporting too. ( 5) Two timer / counter, each timer / counter may set up and count in the way, used to count to the external incident, can set up into a timing way too, and can according to count or result of timing realize the control of the computer. ( 6) Five cut off cutting off the control system of the source . ( 7) One all duplexing serial I/O mouth of UART (universal asynchronous receiver/transmitter (UART) ), is it realize one-chip computer or one-chip computer and serial communication of computer to use for. ( 8) Stretch oscillator and clock produce circuit, quartz crystal finely tune electric capacity need outer. Allow oscillation frequency as 12 megahertas now at most. Every the above-mentioned part was joined through the inside data bus .Among them, CPU is a core of the one-chip computer, it is the control of the computer and command centre, made up of such parts as ……
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51系列單片機(jī)的功能和結(jié)構(gòu)
結(jié)構(gòu)和功能的監(jiān)控監(jiān)-51系列之一--計(jì)算機(jī)芯片監(jiān)控監(jiān)-51名是一幅一個(gè)電腦晶片,英特爾公司生產(chǎn)系列. 這家公司推出8級(jí)一個(gè)計(jì)算機(jī)芯片監(jiān)控監(jiān)-51系列之后,于1980年8引入一個(gè)計(jì)算機(jī)芯片監(jiān)控監(jiān),于1976年48系列.。它屬于這一類型很多行一個(gè)芯片的電腦芯片都如8051、8031、8751、80c51bh,80c31bh等,其基本組成、性能和基本教學(xué)制度,都是一樣的. 8051每日代表-51系列之一--電腦晶片 有一個(gè)芯片的計(jì)算機(jī)系統(tǒng)是由以下幾個(gè)方面: (1)18微處理器(CPU). (2)在切片數(shù)據(jù)存儲(chǔ)羊(128B/256B),使用可以不讀書不數(shù)據(jù)寫如因經(jīng)營不中,最后結(jié)果要和數(shù)據(jù)顯示等. (3)存儲(chǔ)器存儲(chǔ)程序/可擦寫可編程只讀存儲(chǔ)器(4KB/8KB),用于保存程序和數(shù)據(jù),初步形成片. 但并不存儲(chǔ)器/可擦寫可編程只讀存儲(chǔ)器在一些人的電腦芯片,如8031、8032、80c等. （4)經(jīng)營的84并肩一/四OP0P3接口,每口可以用作介紹,也可以用作輸出. (5)兩個(gè)定時(shí)/柜臺(tái),每個(gè)計(jì)時(shí)器/柜臺(tái)可設(shè)立和計(jì)算的方法,用來計(jì)算的外部事件,可以建立成一個(gè)時(shí)間的方式也可以和根據(jù)計(jì)算結(jié)果或時(shí)間實(shí)現(xiàn)控制的計(jì)算(六)五切斷切斷源頭上控制系統(tǒng). (七)各一序I/O口UART(異步接收世界/發(fā)送(UART)),它是實(shí)現(xiàn)一個(gè)計(jì)算機(jī)芯片和一個(gè)計(jì)算機(jī)芯片和通訊系列電腦上使用. (8)強(qiáng)、時(shí)鐘振蕩器電路生產(chǎn)、水晶石英細(xì)調(diào)需要外部電容. 為使振動(dòng)頻率目前最. 每上述地區(qū)內(nèi)的數(shù)據(jù)是通過加入單片機(jī).
其中,CPU的核心是一個(gè)電腦芯片,它是計(jì)算機(jī)和指揮控制中心等部分組成,運(yùn)算器和控制等. 運(yùn)算器的可攜帶8人計(jì)算a經(jīng)營單位的經(jīng)營邏輯,其中,1temporarilies存儲(chǔ)裝置8、暫時(shí)貯存器2、8的行政協(xié)調(diào)會(huì)累積裝置、B、注冊(cè)登記程序國有PSW等. 累積計(jì)200人,行政協(xié)調(diào)委員會(huì)結(jié)束對(duì)進(jìn)入檢查. 暫時(shí)運(yùn)作往往是來自一店經(jīng)營者,這是經(jīng)營下去,使計(jì)暫時(shí)經(jīng)營成果和行政協(xié)調(diào)會(huì). 此外,行政協(xié)調(diào)會(huì)經(jīng)常被視為轉(zhuǎn)運(yùn)站,在8051年的數(shù)據(jù)傳輸. 一般微處理器一樣,是繁忙登記. 幫助大家,表示了贊同的命令. 控制程序包括柜臺(tái)命令詳解,振蕩器電路和時(shí)間等. 程序相當(dāng)于16. 這是一個(gè)字節(jié)地址位的程序,其實(shí),內(nèi)容是未來IA將進(jìn)行PC. 修改的內(nèi)容,它可以改變方向,進(jìn)行程序. 在8051…………
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