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