精品文檔

。

1

歡迎下載

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,

總結

以上是生活随笔為你收集整理的单片机外文参考文献期刊_单片机-英文参考文献的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。