MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 373

• Manufacturer Part Number: MC68HC908LJ12CPB
• Description: 8-bit microcontroller units
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Computer Operating Properly (COP)
20.4.5 Internal Reset
20.4.6 Reset Vector Fetch
20.4.7 COPD (COP Disable)
20.4.8 COPRS (COP Rate Select)
Technical Data
374
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
CONFIG1 register. (See
Registers
The COPRS signal reflects the state of the COP rate select bit (COPRS)
in the CONFIG1 register.
COPRS — COP Rate Select
COPD — COP Disable Bit
Reset:
Read:
Write:
COPRS selects the COP time-out period. Reset clears COPRS.
COPD disables the COP module.
1 = COP time out period = 2
0 = COP time out period = 2
1 = COP module disabled
0 = COP module enabled
COPRS
$001F
Computer Operating Properly (COP)
Bit 7
Figure 20-2. Configuration Register 1 (CONFIG1)
0
(CONFIG).)
LVISTOP LVIRSTD LVIPWRD
= Unimplemented
6
0
Figure 20-2
5
0
13
18
4
1
– 2
– 2
and
4
4
ICLK cycles
ICLK cycles
Section 5. Configuration
3
0
0
MC68HC908LJ12
SSREC
Freescale Semiconductor
2
0
STOP
1
0
—
Rev. 2.1
COPD
Bit 0
0