User’s Manual

PE200U Series 79
Watchdog timer Implementation Default Timeout
POST Watchdog Timer
This Watchdog Timer is for recovering
the system from crashes during BIOS
takeover to OS. After system BIOS
takeover, the BIOS will stop the HW
watchdog timer and start the POST
watchdog timer on the same hardware
watchdog circuit.
NOTE: T he default setting for the
BIOS item is set to enabled.
The timeout value is
determined by the
BIOS settings.
*OS Watchdog Timer
No implementation. User needs to
write software in OS to keep updating
the watchdog timer to prevent it from
timing out. The application is executed
on payload.
NOTE: Please refer to the
section 4.9.3 Watchdog
Timer Programming for more
information.
N/A