MC68332
OVERVIEW
USER’S MANUAL 3-1
SECTION 3 OVERVIEW
This section contains information about the entire modular microcontroller. It lists the
features of each module, shows device functional divisions and pin assignments, sum-
marizes signal and pin functions, discusses the intermodule bus, and provides system
memory maps. Timing and electrical specifications for the entire microcontroller and
for individual modules are provided in
APPENDIX A ELECTRICAL CHARACTERIS-
TICS
. Comprehensive module register descriptions and memory maps are provided
in
APPENDIX D REGISTER SUMMARY
.
3.1 MC68332 Features
The following paragraphs highlight capabilities of each of the microcontroller modules.
Each module is discussed separately in a subsequent section of this user's manual.
3.1.1 System Integration Module (SIM)
• External Bus Support
• Programmable Chip-Select Outputs
• System Protection Logic
• Watchdog Timer, Clock Monitor, and Bus Monitor
• System Protection Logic
• System Clock Based on 32.768-kHz Crystal for Low Power Operation
• Test/Debug Submodule for Factory/User Test and Development
3.1.2 Central Processing Unit (CPU)
• Upward Object Code Compatible
• New Instructions for Controller Applications
• 32-Bit Architecture
• Virtual Memory Implementation
• Loop Mode of Instruction Execution
• Table Lookup and Interpolate Instruction
• Improved Exception Handling for Controller Applications
• Trace on Change of Flow
• Hardware Breakpoint Signal, Background Mode
• Fully Static Operation
3.1.3 Time Processor Unit (TPU)
• Dedicated Microengine Operating Independently of CPU32
• 16 Independent, Programmable Channels and Pins
• Any Channel can Perform any Time Function
• Two Timer Count Registers with Programmable Prescalers
• Selectable Channel Priority Levels
Fr
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cale S
em
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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