MOTOROLA
viii
MC68331
USER’S MANUAL
TABLE OF CONTENTS
(Continued)
Title
Paragraph
Page
7.3.1
7.3.2
7.3.3
7.3.4
7.4
7.4.1
7.4.2
7.5
7.5.1
7.5.2
7.5.3
7.5.4
7.5.5
7.5.6
7.6
7.7
7.8
7.8.1
7.8.2
7.8.3
7.8.3.1
7.8.3.2
7.9
7.10
7.11
7.11.1
7.11.2
Low-Power Stop Mode ...........................................................................7-3
Freeze Mode ..........................................................................................7-3
Single-Step Mode ...................................................................................7-3
Test Mode ..............................................................................................7-4
Polled and Interrupt-Driven Operation ............................................................7-4
Polled Operation .....................................................................................7-4
GPT Interrupts ........................................................................................7-5
Pin Descriptions .............................................................................................7-6
Input Capture Pins (IC[1:3]) ....................................................................7-6
Input Capture/Output Compare Pin (IC4/OC5) ......................................7-6
Output Compare Pins (OC[1:4]) .............................................................7-6
Pulse Accumulator Input Pin (PAI) .........................................................7-7
Pulse-Width Modulation (PWMA, PWMB) ..............................................7-7
Auxiliary Timer Clock Input (PCLK) ........................................................7-7
General-Purpose I/O ......................................................................................7-7
Prescaler ........................................................................................................7-8
Capture/Compare Unit ...................................................................................7-9
Timer Counter ......................................................................................7-11
Input Capture Functions .......................................................................7-11
Output Compare Functions ..................................................................7-12
Output Compare 1 ........................................................................ 7-13
Forced Output Compare .............................................................. 7-13
Input Capture 4/Output Compare 5 ..............................................................7-13
Pulse Accumulator .......................................................................................7-14
Pulse-Width Modulation Unit ........................................................................7-15
PWM Counter .......................................................................................7-16
PWM Function ......................................................................................7-17
APPENDIX A ELECTRICAL CHARACTERISTICS
APPENDIX B MECHANICAL DATA AND ORDERING INFORMATION
APPENDIX CDEVELOPMENT SUPPORT
C.1
C.2
M68MMDS1632 Modular Development System ...................................... C-1
M68MEVB1632 Modular Evaluation Board .............................................. C-2
APPENDIX D REGISTER SUMMARY
D.1
D.1.1
D.1.2
Central Processing Unit ............................................................................ D-1
CPU32 Register Model ..................................................................... D-2
— Status Register ............................................................................ D-3