![background image](http://html.mh-extra.com/html/advantech/ags-913-series/ags-913-series_user-manual_2858130098.webp)
AGS-913 Series User Manual
88
The AGS-913’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 hardware monitor NCT7904D. It provides the fol-
lowing 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
Programming the Watchdog Timer
The Watch Dog timer programming steps as below:
1.
Set Bank0 CR[E1h] Bit0 to 1 to enable Soft Watch Dog.
2.
Set Bank0 CR[E3h] Timeout timer for Soft Watch Dog.
3.
Set Bank0 CR[E0h] to 55h to enable Soft Watch Dog Timer. Set to AAh will dis-
able Soft Watch Dog Timer.
4.
The Soft Watch Dog will start count down.
5.
When the timer that we set to CR[E3h] is timeout , WDTRST# will issue low
pulse signal.
6.
The Bank0 CR[E2h] is Watch Dog Status Register for reading.
Summary of Contents for AGS-913 Series
Page 11: ...Chapter 1 1 Overview ...
Page 21: ...Chapter 2 2 Setting up ...
Page 43: ...Chapter 3 3 AMI BIOS ...
Page 50: ...AGS 913 Series User Manual 40 3 2 2 3 H W Monitor ...
Page 58: ...AGS 913 Series User Manual 48 3 2 3 Intel RC Setup 3 2 3 1 Processor Configuration ...
Page 66: ...AGS 913 Series User Manual 56 3 2 3 5 IIO Configuration ...
Page 82: ...AGS 913 Series User Manual 72 3 2 5 Security ...
Page 85: ...Chapter 4 4 Chipset Software Installation Utility ...
Page 88: ...AGS 913 Series User Manual 78 2 Click setup to execute program ...
Page 89: ...Chapter 5 5 VGA Setup ...
Page 91: ...Chapter 6 6 LAN Configuration SATA RAID AHCI USB 3 0 Setup ...
Page 96: ...AGS 913 Series User Manual 86 ...
Page 97: ...Appendix A A Programming the Watchdog Timer ...
Page 99: ...89 AGS 913 Series User Manual Appendix A Programming the Watchdog Timer ...