Intel MCS48 User Manual page 120

APPLICATION
EXAMPLES
5.0
Introduction
5-1
5.1
Hardware Examples
5-1
Frequency Reference Options
5-1
Stand Alone 8048/8049
5-2
Stand Alone 8021
5-3
Stand Alone 8022
5-4
Multiple Interrupt
Sources
5-5
Multiple
Prioritized Interrupts
5-6
External
Program
Memory 5-7
Program
Memory
and
I/O
Expansion
5-8
Data
Memory
and
I/O
Expansion
5-9
A Three Chip System
5-10
I/O
Expansion Techniques
5-11
8049 Emulator
Circuit
5-17
General
Application
Examples
5-19
5.2
Software
Examples
5-22