EasyManuals Logo
Home>Motorola>Controller>MC68HC908AB32

Motorola MC68HC908AB32 User Manual

Motorola MC68HC908AB32
392 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #353 background imageLoading...
Page #353 background image
MC68HC908AB32 — Rev. 1.0 Technical Data
MOTOROLA Computer Operating Properly (COP) 353
Technical Data — MC68HC908AB32
Section 20. Computer Operating Properly (COP)
20.1 Contents
20.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .353
20.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .354
20.4 I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355
20.4.1 CGMXCLK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355
20.4.2 STOP Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355
20.4.3 COPCTL Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355
20.4.4 Power-On Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355
20.4.5 Internal Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .356
20.4.6 Reset Vector Fetch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .356
20.4.7 COPD (COP Disable). . . . . . . . . . . . . . . . . . . . . . . . . . . . .356
20.4.8 COPRS (COP Rate Select) . . . . . . . . . . . . . . . . . . . . . . . .356
20.5 COP Control Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .357
20.6 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .357
20.7 Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .357
20.8 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .357
20.8.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .358
20.8.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .358
20.9 COP Module During Break Mode. . . . . . . . . . . . . . . . . . . . . .358
20.2 Introduction
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
clearing the COP counter periodically. The COP module can be disabled
through the COPD bit in configuration register 1 (CONFIG1).

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Motorola MC68HC908AB32 and is the answer not in the manual?

Motorola MC68HC908AB32 Specifications

General IconGeneral
BrandMotorola
ModelMC68HC908AB32
CategoryController
LanguageEnglish

Related product manuals