1. 8051 Supplement

2. Table of Content
Topic
Color
Microcontroller? Microprocessor?

3. Microcontroller? Microprocessor?
Definition
A processor implemented in a single IC chip.
(A single-chip CPU)
A computer in a chip HW
Only the CPU
CPU, RAM, ROM, Timer, interrupt control, serial interface, parallel interface,
Application
CPU of a microcomputer
Small system for control-oriented activities
Instruction
Processing intensive
* Control intensive: (control of inputs and outputs)
* Bit-oriented operation available: set/clear, logic operation , conditional branching on individual bits
Mackenzie, p.10

4. Microcontroller? Microprocessor?
I/O device
I/O device
Serial interface
Parallel interface
Timers
Interrupt control
CPU
RAM
ROM
ALU
Mackenzie, p.11
Registers CU
The processor
A microprocessor, if implemented in a single chip
A microcontroller, if implemented in a single chip
A microcomputer system

5. Microcontroller? Microprocessor?
Microcomputer
Minicomputer
Mainframe computer
Complexity
CPU
Single chip
In multiple chips
In multiple circuit boards
Single-user single-task
Multiuser multitasking system
Example
IBM PC, Apple Macintosh
Mackenzie, p.9