mc68hc908ld64 Freescale Semiconductor, Inc, mc68hc908ld64 Datasheet - Page 332

• Manufacturer Part Number: mc68hc908ld64
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Computer Operating Properly (COP)
22.4.5 Internal Reset
22.4.6 Reset Vector Fetch
22.4.7 COPD (COP Disable)
22.4.8 COPRS (COP Rate Select)
Data Sheet
332
Address:
An internal reset clears the COP prescaler and the COP counter.
A reset vector fetch occurs when the vector address appears on the data
bus. A reset vector fetch clears the COP prescaler.
The COPD signal reflects the state of the COP disable bit (COPD) in the
CONFIG register. (See
The COPRS signal reflects the state of the COP rate select bit (COPRS)
in the CONFIG register. (See
COPRS — COP Rate Select Bit
COPD — COP Disable Bit
Reset:
Read:
Write:
COPRS selects the COP timeout period. Reset clears COPRS.
COPD disables the COP module.
1 = COP timeout period is 2
0 = COP timeout period is 2
1 = COP module disabled
0 = COP module enabled
$001F
Computer Operating Properly (COP)
Bit 7
0
0
Figure 22-2. Configuration Register (CONFIG)
= Unimplemented
6
0
0
Figure
5
0
0
Figure
22-2.)
13
18
4
0
0
– 2
– 2
22-2.)
4
4
SSREC
OSCXCLK cycles
OSCXCLK cycles
3
0
MC68HC908LD64
COPRS
Freescale Semiconductor
2
0
STOP
1
0
—
Rev. 3.0
COPD
Bit 0
0