Intel MCS48 User Manual page 6

Chapter
3
The Expanded
MCS-48™ System
3.0
Summary 3-1
3.
1
Expansion
of
Program
Memory
3-1
Instruction
Fetch Cycle
-
3-1
Extended Addressing
.
. .
3-1
Restoring Port
Information
3-2
Expansion Examples
.
. .
.
3-2
3.2
Expansion
of
Data
Memory
,.,,...,,.
3-4
Read
Write
Cycle
.3-4
Addressing
External
Memory
3-5
Examples
of
Data
Memory
Expansion
3-5
3.3
Expansion
of
Input/Output
3-5
I/O
Expander Device
3-6
Expansion
with
Standard Peripherals
3-7
Combination
Memory
and
I/O
Expanders
3-7
Expansion Examples
3-8
3.4
Multi-Chip
MCS-48** Systems
3-9
3.5
Bank
Switching
.....
3-10
3.6 Control Signal
Summary
3-11
3.7 Port Characteristics
3-11
Chapter
4
Instruction
Set
4.0
Introduction
4-1
Data Transfers
4-1
Accumulator Operations
4-2
Register
Operations
4-2
Flags
4-2
Branch
Instructions
4-2
Subroutines
4-3
Timer
Instructions
—
4-3
Control
4-3
input/Output Instructions
4-4
4.
1
instruction
Set Description
4-4
Summary
4-5
Symbols and Abbreviations
4-8
Alphabetic
Listings
by
Mnemonic
4-9
Chapter 5
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
II