11/2/95
SECTION 1: OVERVIEW
UM Rev 1
Freescale Semiconductor, Inc.
TABLE OF CONTENTS
Paragraph
Number
Page
Number
Title
Section 1
Device Overview
1.1
M68300 Family..................................................................................................1-2
Organization..................................................................................................1-3
Advantages....................................................................................................1-3
Central Processor Unit.....................................................................................1-3
CPU32............................................................................................................1-4
Background Debug Mode...........................................................................1-4
On-Chip Peripherals ........................................................................................1-5
System Integration Module.........................................................................1-5
External Bus Interface..............................................................................1-5
System Configuration and Protection...................................................1-6
Clock Synthesizer.....................................................................................1-6
Chip Select and Wait State Generation...............................................1-6
Interrupt Handling.....................................................................................1-6
Discrete I/O Pins........................................................................................1-6
IEEE 1149.1 Test Access Port................................................................1-7
Direct Memory Access Module...................................................................1-7
Serial Module................................................................................................1-7
Timer Modules...............................................................................................1-8
Power Consumption Management................................................................1-8
Physical..............................................................................................................1-9
Compact Disc-Interactive................................................................................1-9
More Information...............................................................................................1-10
1.1.1
1.1.2
1.2
1.2.1
1.2.2
1.3
1.3.1
1.3.1.1
1.3.1.2
1.3.1.3
1.3.1.4
1.3.1.5
1.3.1.6
1.3.1.7
1.3.2
1.3.3
1.3.4
1.4
1.5
1.6
1.7
Section 2
Signal Descriptions
2.1
2.2
2.2.1
2.2.2
2.3
2.4
2.5
2.6
Signal Index.......................................................................................................2-2
Address Bus.......................................................................................................2-4
Address Bus (A23–A0)................................................................................2-4
Address Bus (A31–A24)..............................................................................2-4
Data Bus (D15–D0)..........................................................................................2-4
Function Codes (FC3–FC0)............................................................................2-5
Chip Selects (CS3–CS0) ................................................................................2-5
Interrupt Request Level (IRQ7, IRQ6, IRQ5, IRQ3) ...................................2-6
MOTOROLA
MC68340 USER'S MANUAL
iii
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