3 functional description, Functional description, Cop block diagram – Freescale Semiconductor MC68HC08KH12 User Manual
Page 208: Cop i/o port register summary, Table 13-1. cop i/o port register summary
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MC68HC(7)08KH12
—
Rev. 1.1
208
Freescale Semiconductor
13.3 Functional Description
shows the structure of the COP module.
Figure 13-1. COP Block Diagram
COPCTL WRITE
CGMXCLK
RESET VECTOR FETCH
RESET CIRCUIT
RESET STATUS REGISTER
INTERNAL RESET SOURCES
12-BIT SIM COUNTER
CL
EAR ALL STAGES
6-BIT COP COUNTER
COP DISABLE
RESET
COPCTL WRITE
CLEAR
COP MODULE
COPEN (FROM SIM)
COP COUNTER
COP CLOCK
COP T
IMEOUT
STOP INSTRUCTION
(COPD FROM CONFIG)
COP RATE SEL
(COPRS FROM CONFIG)
CLEAR
ST
AGES 5
–12
Table 13-1. COP I/O Port Register Summary
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
$001F
Configuration Register
(CONFIG)
†
Read:
0
0
0
0
SSREC COPRS
STOP
COPD
Write:
Reset:
0
0
0
0
0
0
0
0
$FFFF
COP Control Register
(COPCTL)
Read:
Low byte of reset vector
Write:
Clear COP counter
Reset:
Unaffected by reset
† One-time writable register
= Unimplemented