MC68HC908RF2 Datasheet, PDF (164/254 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Computer Operating Properly Module (COP)
11.2 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
periodically clearing the COP counter.
11.3 Functional Description
CGMXCLK
12-BIT COP PRESCALER
STOP INSTRUCTION
INTERNAL RESET SOURCES
RESET VECTOR FETCH
COPCTL WRITE
COPD FROM CONFIG
RESET
COPCTL WRITE
COPRS FROM CONFIG
6-BIT COP COUNTER
CLEAR COP
COUNTER
RESET
RESET STATUS
REGISTER
Figure 11-1. COP Block Diagram
Advance Information
164
Computer Operating Properly Module (COP)
MC68HC908RF2 — Rev. 1
MOTOROLA