Stackmemory(堆叠记忆体).PPT

8051 Microcontroller 莊博景 IPAS pjjuang@ia.ee.ccu.edu.tw Target What you will know… What is microcontroller (ex.8051) How to control a 8 bit processor Computer architecture and organization Timer, Interrupt, I/O, UART of 8051 Some skills for microcontroller Syllabus Class1 8051 introduction Keil C Class2 I/O 、7seg、Scan、Keyboard Class3 Interrupt、Timer Class4 UART、LCD Control Class5 LED array、PWM、AD/DA、Additional remark Grade 10% Attendance 30% Exercise and Homework 60% Lab (Demo、Code、Presentation) class 1 8051 introduction Keil C Introduction What is microcontroller ?(這是我從某網頁抄來的…) The simplest computer processor is used as the brain of the future system. Depending on the taste of the manufacturer, a bit of memory, a few A/D converters, timers, input/output lines etc. All that is placed in some of the standard packages. A simple software able to control it all and which everyone can easily learn about has been developed. Introduction (Cont.) 所以，你可以想像microcontroller是什麼嗎？ Powerful and carefully chosen electronics embedded in the microcontrollers Very low prices enable them to be embedded in such devices Prior knowledge is hardly needed for programming. Introduction (Cont.) 還好有維基百科… CPU and Microcontroller CPU and Microcontroller A smaller computer On-chip RAM, ROM, I/O ports... Example：Motorola’s 6811, Intel’s 8051, Zilog’s Z8 and PIC 16X CPU v.s. Microcontroller The structure of microcomputer CPU Two typical components of a CPU are the following: The arithmetic logic unit (ALU), which performs arithmetic (math operation: add, subtract, multiply, divide ) and logical operations (and、or、not etc.) The control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary. Communicate through the bus to send the data to CPU 匯流排(BUS)種類 Memory Unit The Memory Unit is the part of the computer that holds data and instructions for processing When we load software from a floppy disk, hard d