MC68HC705MC4 Datasheet, PDF (25/99 Pages) Motorola, Inc – Microcontrollers

MC68HC705MC4 Specification Rev. 1.5
The COP watchdog timer should be disabled for applications that will use the WAIT mode
with time periods that will exceed the COP time-out period.
COP watchdog timer interactions are summarized in Table 2-3: COP Watchdog Timer
Recommendations.
Table 2-3: COP Watchdog Timer Recommendations
IF the following conditions exist:
STOP Instruction Mode
Stop Mode disabled
via Mask Option
Stop Mode disabled
via Mask Option
Stop Mode enabled
via Mask Option
WAIT Period
WAIT period less than
COP time-out
WAIT period more than
COP time-out
any length
WAIT period
THEN the
COP Watchdog Timer
should be:
Enable or disable COP
via Mask Option
Disable COP
via Mask Option
Disable COP
via Mask Option
MOTOROLA
Page 16
Section 2: Operating Modes