User manual

TPC-1570H Series User Manual 60
Appendix C Watchdog Timer
Programming
C.1 Overview
The TPC-1570H cards’ watchdog timer can be used to monitor system
software operation and take corrective action if the software fails to func-
tion after the programmed period. This section describes the operation of
the watchdog timer, and how to program it.
The watchdog timer is built into the super I/O controller W83627HF. It
provides the following functions for user programming:
• Can be enabled and disabled by user's program.
• Timer can be set from 1 to 255 seconds or 1 to 255 minutes.
• Generates an interrupt or resets signal if the software fails to reset the
timer after time-out.