Watchdog Timer Overview; Programming The Watchdog Timer - Advantech ASMB-822I User Manual

Intel e5-2600(v2) series single processor atx server board

Hide thumbs Also See for ASMB-822I:

Table of Contents

The ASMB-822I's watchdog timer can be used to monitor system software operation

and take corrective action if the software fails to function within the programmed

period. This section describes the operation of the watchdog timer and how to pro-

gram it.

A.1

Watchdog Timer Overview

The watchdog timer is built in to the super I/O controller NCT6776F. It provides the

following functions for user programming:



Can be enabled and disabled by user 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

before time-out

A.2

The I/O port address of the watchdog timer is 2E (hex) and 2F (hex). 2E (hex) is the

address port. 2F (hex) is the data port. You must first write an address value into

address port 2E (hex), and then write/read data to/from the assigned register through

data port 2F (hex).

ASMB-822I User Manual

Table of Contents