MC68HC908AZ32ACFU MOTOROLA [Motorola, Inc], MC68HC908AZ32ACFU Datasheet - Page 187
MC68HC908AZ32ACFU
Manufacturer Part Number
MC68HC908AZ32ACFU
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908AZ32ACFU.pdf
(468 pages)
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Advance Information — 68HC908AZ32A
13.1 Contents
13.2 Introduction
68HC908AZ32A — Rev 0.0
MOTOROLA
Section 13. Computer Operating Properly (COP)
13.2
13.3
13.4
13.4.1
13.4.2
13.4.3
13.4.4
13.4.5
13.4.6
13.4.7
13.4.8
13.5
13.6
13.7
13.8
13.8.1
13.8.2
13.9
The 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,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
COP Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .191
COP Module During Break Interrupts . . . . . . . . . . . . . . . . . . . 192
Computer Operating Properly (COP)
CGMXCLK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
STOP Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
COPCTL Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Power-On Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Internal Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Reset Vector Fetch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
COPD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
COPRS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Go to: www.freescale.com
Advance Information
187
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