單片機相關(guān)外文翻譯-- mcs -51系列單片機的功能和結(jié)構(gòu)

1、<p>　　本 科 生 畢 業(yè) 論 文（外文翻譯）</p><p>　　譯文名稱： MCS -51系列單片機的功能和結(jié)構(gòu) </p><p>　　專 業(yè)： 自動化 </p><p>　　班 次： </p><p>　　學(xué) 員

2、： </p><p>　　指導(dǎo)教員： </p><p>　　評 閱 人： </p><p>　　完成時間：2010年11月30 日</p><p>　　Structure and fu

3、nction of the MCS-51 series</p><p>　　Structure and function of the MCS-51 series one-chip computer is a name of a piece of one-chip computer series which Intel Company produces. This company introduced 8 top

4、-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, 80C5

5、1BH, 80C31BH,etc., their basic composition, basic performance and instruction system are all the same. 8051 da</p><p>　　An one-chip computer system is made up of several following parts: ( 1) One microproces

6、sor 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

7、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) F</p><p>　　Ther

8、e 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 independent memory address space, dispose way to be the same with general memory of com

9、puter. Procedure 8051 memory and 8751 slice procedure memory capacity 4KB, address begin from 0000H, used for preserving the procedure and form constant. Data 8051- 8751 8031 of memory data memory 128B, address false 00F

10、H, use for middle result to deposit operation, the data </p><p>　　8051 one-chip computer have four 8 walk abreast I/O port, call P0, P1, P2 and P3. Each port is 8 accurate two-way mouths, accounts for 32 pin

11、s altogether. Every one I/O line can be used as introduction and exported independently. Each port includes a latch (namely special function register ), one exports the driver and a introduction buffer . Make data can la

12、tch when outputting, data can buffer when making introduction , but four function of passway these self-same. Expand among the system of me</p><p>　　The circuit of 8051 one-chip computers and four I/O ports

13、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 designing the peripheral logical circuit of one-chip computer to some extent.

14、Load ability and interface of port have certain requirement, because output grade, P0 of mouth and P1 end output, P3 of mouth grade different at structure, so, the load ability and interface of its door demand to have no

15、th</p><p>　　Output grade , P3 of mouth , P1 of P1 , connect with inside have load resistance of drawing , every one of they can drive 4 Model LS TTL load to output. As while inputting the mouth, any TTL or N

16、MOS 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 open a way collector too or drain-source resistance is it urge to open a way, do

17、 not need to have the resistance of drawing outerly . Mouths are all accurate two-way</p><p>　　Restore to the throne the circuit and include two parts outside in the chip entirely. Outside that circuit produ

18、ce to restore to the throne signal (RST ) hand over to Schmitt's trigger, restore to the throne circuit sample to output , Schmitt of trigger constantly in each S5P2 , machine of cycle in having one more , then just

19、got and restored to the throne and operated the necessary signal insidly. Restore to the throne resistance of circuit generally, electric capacity parameter suitable for 6 </p><p>　　MCS -51系列單片機的功能和結(jié)構(gòu)</p&

20、gt;<p>　　MCS - 51系列單片機具有一個單芯片電腦的結(jié)構(gòu)和功能，它是英特爾公司生產(chǎn)的系列產(chǎn)品的名稱。這家公司在1976年推出后，引進8位單芯片的MCS - 48系列計算機后于1980年推出的8位的MCS - 51系列單芯片計算機。諸如此類的單芯片電腦有很多種，如8051，8031，8751，80C51BH，80C31BH等，其基本組成，基本性能和指令系統(tǒng)都是相同的。 8051是51系列單芯片電腦的代表。 &#

21、160;   一個單芯片的計算機系統(tǒng)由以下幾個部分組成：（1）一個8位的微處理器（CPU）。（2）片內(nèi)數(shù)據(jù)存儲器RAM（128B/256B），它只讀/寫數(shù)據(jù)，如結(jié)果不在操作過程中，最終結(jié)果要顯示數(shù)據(jù)（3）程序存儲器ROM/ EPROM（4KB/8KB），是用來保存程序，一些初步的數(shù)據(jù)和切片的形式。但一些單芯片電腦沒有考慮ROM / EPROM，如8031，8032，80C51等等。（4）4個8路運行的I /