MC68HC08AZ60ACFU MOTOROLA [Motorola, Inc], MC68HC08AZ60ACFU Datasheet - Page 192

• Manufacturer Part Number: MC68HC08AZ60ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Computer Operating Properly (COP)
13.4.3 COPCTL Write
13.4.4 Power-On Reset
13.4.5 Internal Reset
13.4.6 Reset Vector Fetch
13.4.7 COPD (COP Disable)
13.4.8 COPRS (COP Rate Select)
Advance Information
192
Writing any value to the COP control register (COPCTL) (see COP
Control Register (COPCTL) on page 193), clears the COP counter and
clears bits 12 – 4 of the COP prescaler. Reading the COP control
register returns the reset vector.
The power-on reset (POR) circuit clears the COP prescaler 4096
CGMXCLK 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
mask option register (MORA). See Mask Options.
The COPRS signal reflects the state of the COP rate select bit, COPRS
in the MORA register (see
Computer Operating Properly (COP)
Figure 10-1
on page 168).
MC68HC08AZ60A — Rev 0.0
MOTOROLA