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