mc68hc908as60 Freescale Semiconductor, Inc, mc68hc908as60 Datasheet - Page 203

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mc68hc908as60

Manufacturer Part Number
mc68hc908as60
Description
Mc68hc908as60 Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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14.1 Contents
14.2 Introduction
MC68HC908AS60 — Rev. 1.0
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
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Technical Data

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