外文翻譯--51系列單片機(jī)的功能和結(jié)構(gòu)

1、<p><b>　　附錄二 外文翻譯</b></p><p>　　Structure and function of the MCS-51 series</p><p>　　Structure and function of the MCS51 series one-chip computer is a name of a piece of one-chip

2、 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

3、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 dai</p><p>　　An one-chi

4、p 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

5、 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

6、 computers, such as 8031 , 8032, 80C ,etc.. ( 4) F</p><p>　　There are ROM (procedure memory , can only read ) and RAM in 8051 slices (data memory, can is it can write ) two to read, they have each independen

7、t memory address space, dispose way to be the same with general memory of computer. Procedure 8051 memory and 8751 slice procedure memory capacity 4KB, address begin from 0000H, used for preserving the procedure and form

8、 constant. Data 8051- 8751 8031 of memory data memory 128B, address false 00FH, use for middle result to deposit operation, the data </p><p>　　8051 one-chip computer have four 8 walk abreast I/O port, call P

9、0, P1, P2 and P3. Each port is 8 accurate two-way mouths, accounts for 32 pins altogether. Every one I/O line can be used as introduction and exported independently. Each port includes a latch (namely special function re

10、gister ), one exports the driver and a introduction buffer . Make data can latch when outputting, data can buffer when making introduction , but four function of passway these self-same. Expand among the system of me<

11、/p><p>　　The circuit of 8051 one-chip computers and four I/O ports is very ingenious in design. Familiar with I/O port logical circuit, not only help to use ports correctly and rationally, and will inspire to d

12、esigning the peripheral logical circuit of one-chip computer to some extent. Load ability and interface of port have certain requirement, because output grade, P0 of mouth and P1 end output, P3 of mouth grade different a

13、t structure, so, the load ability and interface of its door demand to have noth</p><p>　　Output grade , P3 of mouth , P1 of P1 , connect with inside have load resistance of drawing , every one of they can dr

14、ive 4 Model LS TTL load to output. As while inputting the mouth, any TTL or NMOS circuit can drive P1 of 8051 one-chip computers as P3 mouth in a normal way . Because draw resistance on output grade of them have, can ope

15、n a way collector too or drain-source resistance is it urge to open a way, do not need to have the resistance of drawing outerly . Mouths are all accurate two-way</p><p>　　Restore to the throne the circuit a

16、nd include two parts outside in the chip entirely. Outside that circuit produce to restore to the throne signal (RST ) hand over to Schmitt's trigger, restore to the throne circuit sample to output , Schmitt of trigg

17、er constantly in each S5P2 , machine of cycle in having one more , then just got and restored to the throne and operated the necessary signal insidly. Restore to the throne resistance of circuit generally, electric capac

18、ity parameter suitable for 6 </p><p><b>　　中文翻譯：</b></p><p>　　51系列單片機(jī)的功能和結(jié)構(gòu)</p><p>　　MCS 51系列單片機(jī)是一個(gè)具有電腦的結(jié)構(gòu)和功能的單芯片，它是英特爾公司生產(chǎn)的系列產(chǎn)品。英特爾在1976年推出單片機(jī)后，先引進(jìn)8位單芯片的MCS-48系列計(jì)算機(jī)，后于19

19、80年推出8位的MCS-51系列單片機(jī)。諸如此類的單片機(jī)有很多種，如8051，8031，8751，80C51BH，80C31BH等，它們的基本組成，基本性能和指令系統(tǒng)都是相同的。其中8051是51系列單片機(jī)的代表。   一個(gè)單片機(jī)系統(tǒng)由以下幾個(gè)部分組成：（1）一個(gè)8位的微處理器（CPU）。（2）片內(nèi)數(shù)據(jù)存儲(chǔ)器RAM（128B/256B），它只讀/寫(xiě)數(shù)據(jù)，如結(jié)果不在操作過(guò)程中，最終結(jié)果要顯示數(shù)據(jù)（3）程序存儲(chǔ)器ROM

20、/ EPROM（4KB/8KB），是用來(lái)保存程序，一些初步的數(shù)據(jù)和切片的形式。但一些單片沒(méi)有考慮ROM/EPROM，如8031，8032，80C51等等。（4）4個(gè)8位的I/O接口，P0，P1,P2,P3，它們可以用作入口，也可以用作出口。（5）兩個(gè)定時(shí)/計(jì)數(shù)器，每個(gè)定時(shí)/計(jì)數(shù)器可設(shè)置定時(shí)和計(jì)數(shù)的方式，用來(lái)計(jì)數(shù)外部事件，可以設(shè)置成定時(shí)方式也可以根據(jù)計(jì)算結(jié)果或定時(shí)控制實(shí)現(xiàn)計(jì)算機(jī)。（6）5個(gè)中斷一個(gè)全雙工串行的</p><

21、;p>　　址虛假00FH，中層結(jié)果存入操作使用，數(shù)據(jù)存儲(chǔ)和數(shù)據(jù)是暫時(shí)緩沖等。在這128B條內(nèi)存，有32 字節(jié)，可以作為工作寄存器使用，這和一般的微處理器是不同的，8051片RAM和登記形成的同一級(jí)到安排的位置。這不是很相同的，MCS - 51系列內(nèi)存的單芯片計(jì)算機(jī)和通用計(jì)算機(jī)作主除了道路。通用計(jì)算機(jī)的第一個(gè)地址空間，ROM和RAM，可安排在不同的空間在這個(gè)范圍內(nèi)的地址范圍，即ROM和RAM地址的形成與分布在不同的地址空間。在訪問(wèn)內(nèi)

22、存，相應(yīng)的，只有一個(gè)地址的內(nèi)存單元，可以用外部存儲(chǔ)，也可以內(nèi)存，并通過(guò)訪問(wèn)順序與此類似。這種內(nèi)存結(jié)構(gòu)的一種被稱為普林斯頓結(jié)構(gòu)。 8051記憶分為程序存儲(chǔ)器空間和數(shù)據(jù)存儲(chǔ)空間的物理結(jié)構(gòu)上劃分，有四個(gè)在所有的記憶體空間：在1和數(shù)據(jù)外部數(shù)據(jù)存儲(chǔ)器和程序存儲(chǔ)器空間之一，一組在外面一個(gè)內(nèi)存空間的程序商店，結(jié)構(gòu)這一種形式的程序和數(shù)據(jù)存儲(chǔ)器器件數(shù)據(jù)存儲(chǔ)器分開(kāi)的形式，稱為哈佛結(jié)構(gòu)。但是，從用戶使用，8051的內(nèi)存地址空間分為三種：分為（1）片內(nèi)，（使用