11/3/95
SECTION 1: OVERVIEW
UM Rev 1
MOTOROLA
MC68349 USER'S MANUAL
iii
TABLE OF CONTENTS
Paragraph
Page
Number
Title
Number
Section 1
Overview
1.1
Features ................................................................................................ 1-2
1.2
M68300 Family...................................................................................... 1-3
1.2.1
Organization ...................................................................................... 1-3
1.2.2
Advantages........................................................................................ 1-4
1.3
CPU030 Central Processor Unit............................................................ 1-4
1.3.1
CPU32+ ............................................................................................. 1-4
1.3.2
Configurable Instruction Cache (CIC) ................................................ 1-5
1.3.3
Quad Data Memory Module (QDMM) ................................................ 1-5
1.4
On-Chip Peripherals .............................................................................. 1-5
1.4.1
Direct Memory Access Module .......................................................... 1-6
1.4.2
Serial Module..................................................................................... 1-7
1.4.3
System Integration Module ................................................................ 1-7
1.4.3.1
External Bus Interface.................................................................... 1-7
1.4.3.2
System Configuration and Protection............................................. 1-7
1.4.3.3
Clock Synthesizer .......................................................................... 1-8
1.4.3.4
Chip Select and Wait State Generation ......................................... 1-8
1.4.3.5
Interrupt Handling........................................................................... 1-8
1.4.3.6
Discrete I/O Pins ............................................................................ 1-8
1.4.3.7
IEEE 1149.1 Test Access Port....................................................... 1-8
1.5
Power Management .............................................................................. 1-8
1.6
Applications Areas................................................................................. 1-9
1.6.1
Personal Intelligent Communications ................................................ 1-9
1.6.2
Additional Application Areas .............................................................. 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 (D31–D0) ............................................................................... 2-5
2.4
Function Codes (FC3–FC0)............................................................... 2-5
2.5
Exception Control Signals ..................................................................... 2-6