MC68HC908AS60MFN MOTOROLA [Motorola, Inc], MC68HC908AS60MFN Datasheet - Page 203
MC68HC908AS60MFN
Manufacturer Part Number
MC68HC908AS60MFN
Description
HCMOS Microcontroller Unit
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908AS60MFN.pdf
(454 pages)
- Current page: 203 of 454
- Download datasheet (6Mb)
14.1 Contents
14.2 Introduction
MC68HC908AS60 — Rev. 1.0
MOTOROLA
Technical Data — MC68HC908AS60
Section 14. Computer Operating Properly (COP) Module
14.2
14.3
14.4
14.4.1
14.4.2
14.4.3
14.4.4
14.4.5
14.4.6
14.4.7
14.4.8
14.5
14.6
14.7
14.8
14.8.1
14.8.2
14.9
The computer operating properly (COP) module contains a free-running
counter that generates a reset if allowed to overflow. The COP module
helps software recover from runaway code. Prevent a COP reset by
periodically clearing the COP counter.
Freescale Semiconductor, Inc.
For More Information On This Product,
Computer Operating Properly (COP) Module
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
COP Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .207
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
COP Module During Break Interrupts . . . . . . . . . . . . . . . . . . .208
CGMXCLK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205
STOP Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205
COPCTL Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Power-On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206
Internal Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Reset Vector Fetch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
COPD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
COPL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .207
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208
Go to: www.freescale.com
Technical Data
203
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