MC68HC908AP16CFA MOTOROLA [Motorola, Inc], MC68HC908AP16CFA Datasheet - Page 397

• Manufacturer Part Number: MC68HC908AP16CFA
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

21.3.3 COPCTL Write
21.3.4 Power-On Reset
21.3.5 Internal Reset
21.3.6 Reset Vector Fetch
21.3.7 COPD (COP Disable)
MC68HC908AP Family — Rev. 2.5
MOTOROLA
Writing any value to the COP control register (COPCTL) (see
Control
of the prescaler. Reading the COP control register returns the low byte
of the reset vector.
The power-on reset (POR) circuit clears the COP prescaler 4096 ICLK
cycles after power-up.
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
(CONFIG1).)
Freescale Semiconductor, Inc.
For More Information On This Product,
Register) clears the COP counter and clears bits 12 through 5
Go to: www.freescale.com
Figure 21-2 . Configuration Register 1
Computer Operating Properly (COP)
21.4 COP
Data Sheet
I/O Signals
397