Table of Contents
Paragraph
Number
Title
Page
Number
xii
MC68302 USER’S MANUAL
MOTOROLA
Section 7
Mechanical Data and Ordering Information
Pin Assignments......................................................................................7-1
Pin Grid Array (PGA) ...............................................................................7-1
Plastic Surface Mount (PQFP).................................................................7-2
Thin Surface Mount (TQFP).....................................................................7-3
Package Dimensions...............................................................................7-4
Pin Grid Array (PGA) ...............................................................................7-4
Plastic Surface Mount (PQFP).................................................................7-5
Thin Surface Mount (TQFP).....................................................................7-6
Ordering Information................................................................................7-7
7.1
7.1.1
7.1.2
7.1.3
7.2
7.2.1
7.2.2
7.2.3
7.3
Appendix A
SCC Performance
APpendix B
Development Tools and Support
Motorola Software Overview...................................................................B-1
Motorola Software Modules....................................................................B-1
Third-Party Software Support .................................................................B-6
In-Circuit Emulation Support...................................................................B-6
302 Family ADS System.........................................................................B-6
B.1
B.2
B.3
B.4
B.5
Appendix C
RISC Microcode from RAM
C.1
C.2
C.3
C.4
C.5
C.6
SS7 Protocol Support .............................................................................C-2
Centronics Transmission Controller........................................................C-2
Centronics Reception Controller.............................................................C-3
Profibus Controller..................................................................................C-3
Autobaud Support Package....................................................................C-3
Microcode from RAM Initialization Sequence.........................................C-4
Appendix D
MC68302 Applications
D.1
D.1.1
D.1.2
D.1.3
D.1.4
D.1.5
D.2
D.2.1
D.2.2
D.2.3
D.3
D.3.1
Minimum System Configuration..............................................................D-1
System Configuration..............................................................................D-1
Reset Circuit ...........................................................................................D-3
Memory Interface....................................................................................D-4
Memory Circuit........................................................................................D-4
Memory Timing Analysis.........................................................................D-4
Switching the External ROM and RAM Using the MC68302..................D-5
Conditions at Reset.................................................................................D-5
First Things First .....................................................................................D-5
Switching Process...................................................................................D-6
MC68302 Buffer Processing and Interrupt Handling ..............................D-7
Buffer Descriptors Definition...................................................................D-7