Freescale Semiconductor MC68HC08KH12 - Manual (Page 212)

Advance Information MC68HC(7)08KH12 — Rev. 1.1
212 Freescale Semiconductor
13.8 Low-Power Modes
The WAIT and STOP instructions put the MCU in low-power
consumption standby modes.
13.8.1 Wait Mode
The COP continues to operate during wait mode. To prevent a COP
reset during wait mode, periodically clear the COP counter in a CPU
interrupt routine.
13.8.2 Stop Mode
Stop mode turns off the CGMXCLK input to the COP and clears the SIM
counter. Service the COP immediately before entering or after exiting
stop mode to ensure a full COP timeout period after entering or exiting
stop mode.
13.9 COP Module During Break Mode
The COP is disabled during a break interrupt when V
DD
+ V
HI
is present
on the RST pin.