MC68HC08AS32A Datasheet, PDF (118/296 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Computer Operating Properly (COP)
CGMXCLK
SIM
12-BIT SIM COUNTER
SIM RESET CIRCUIT
SIM RESET STATUS REGISTER
STOP INSTRUCTION
INTERNAL RESET SOURCES⁽¹⁾
RESET VECTOR FETCH
COPCTL WRITE
COPEN (FROM SIM)
COPD (FROM MORA)
RESET
COPCTL WRITE
COPS
COP MODULE
6-BIT COP COUNTER
CLEAR
COP COUNTER
1. See 14.3.2 Active Resets from Internal Sources.
Figure 6-1. COP Block Diagram
6.3 I/O Signals
The following paragraphs describe the signals shown in Figure 6-1.
6.3.1 CGMXCLK
CGMXCLK is the crystal oscillator output signal. CGMXCLK frequency is equal to
the crystal frequency.
6.3.2 STOP Instruction
The STOP instruction clears the SIM counter.
Data Sheet
118
Computer Operating Properly (COP)
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MC68HC08AS32A — Rev. 1
MOTOROLA