当前位置:网站首页>Principles of Microcomputer - Introduction
Principles of Microcomputer - Introduction
2022-07-01 08:57:00 【Waves ~】
Microcomputer principle
List of articles
Preface
This series of blog is mainly to watch the teacher Yu of Xi'an University of Electronic Science and technology 2009 Recorded in 《 Microcomputer principle video 》, Curriculum CPU With 8086CPU Take as an example to explain the course !
The whole course revolves around the following control block diagram ,CPU How to receive external physical signals , And control the change of external environment according to the change of external physical signal .
External equipment and CPU Required when connected Design interface circuit , Connect the two through the interface circuit .
One 、 Composition of microcomputer system
The composition system of microcomputer is divided into hardware subsystem and software subsystem ;
1. Early computer hardware systems
The composition of the early computer hardware system is as follows :
CPU By the control unit and ALU form , There are three kinds of information in the whole hardware system , Control information ( Blue ), Data and information ( green ) And address information ( There are multiple storage units in the memory , The location of these storage units is the address information ).
Bus : A path used to transmit information . According to the information, it can be divided into data bus (DB)、 Address bus (AB) And control bus (CB)
2. Hardware composition of microcomputer system
To reduce CPU Volume , Semiconductor manufacturers quote multiplexed pins , Reduce CPU pin number .
System level bus does not Light solves the problem of pin multiplexing and separation, and also solves the problem of pin driving ability .
ROM Memory is called program memory ,RAM Memory is called data memory .
8086 There is no inside ROM and RAM, So you need a bus to mount .
Instructions — Is a kind of binary code , The process of converting a high-level language into a machine language is called compilation ;
whatever IO Equipment and CPU Communication must be set IO Interface circuit !
Such as display and CPU The connection between them needs to be through the graphics card .
IO Address of the interface :CPU To someone IO The operation of the equipment is actually to IO Interface address for operation .
8086 Yes 16 Root address line , and IO The interface circuit has only one interface , So you need to use IO Address decoding circuit . That is to use the decoding knowledge in digital electronics !
Two 、 Memory
A word is divided into low byte and high byte , The high byte is placed at the high address , The low byte is placed at the low address
边栏推荐
- 足球篮球体育比赛比分直播平台源码/app开发建设项目
- Foundation: 2 The essence of image
- Centos7 shell script one click installation of JDK, Mongo, Kafka, FTP, PostgreSQL, PostGIS, pgrouting
- Screenshot tips
- Computer tips
- Vsync+ triple cache mechanism +choreographer
- 又到年中,固定资产管理该何去何从?
- Shell脚本-字符串
- Memory size end
- R language observation log (part24) -- initialization settings
猜你喜欢
Centos7 shell script one click installation of JDK, Mongo, Kafka, FTP, PostgreSQL, PostGIS, pgrouting
How can enterprises and developers take the lead in the outbreak of cloud native landing?
Embedded Engineer Interview Question 3 Hardware
Glitch Free时钟切换技术
AVL树的理解和实现
基础:2.图像的本质
动态代理
集团公司固定资产管理的痛点和解决方案
1.jetson与摄像头的对接
How to solve the problem of fixed assets management and inventory?
随机推荐
钓鱼识别app
Shell脚本-if else语句
Glitch Free时钟切换技术
软件工程师面试刷题网站、经验方法
Shell script - positional parameters (command line parameters)
Memory size end
Shell脚本-特殊变量:Shell $#、$*、[email protected]、$?、$$
基础:3.opencv快速入门图像和视频
Football and basketball game score live broadcast platform source code /app development and construction project
嵌入式工程师面试-常问问题集
5mo3 UHI HII HII 17mn4 19Mn6 executive standard
我想知道手机注册股票开户的流程?另外,手机开户安全么?
yolov5训练可视化指标的含义
Redis source code learning (29), compressed list learning, ziplist C (II)
MD文档中插入数学公式,Typora中插入数学公式
Foundation: 3 Opencv getting started images and videos
Jetson Nano 安装TensorFlow GPU及问题解决
Shell script - definition, assignment and deletion of variables
Nacos - 配置管理
Introduction to 18mnmo4-5 steel plate executive standard and delivery status of 18mnmo4-5 steel plate, European standard steel plate 18mnmo4-5 fixed rolling