Axiomtek ICO300 - Manual (Page 57)

ICO300 Series U ser’s Manual
WATCHDOG TIMER 49
APPENDIX A
WATCHDOG TIMER
About Watchdog Timer
After the system stops working for a while, it can be auto-reset by the watchdog timer. The
integrated watchdog timer can be set up in the system reset mode by program.
How to Use Watchdog Timer
The following example enables configuration using debug tool.
Enable WDT

Enable configuration:
O 2E 87 ; Un-lock super I/O
O 2E 87

Select logic device:
O 2E 07
O 2F 08

WDT device enable:
O 2E 30
O 2F 01

Set timer unit:
O 2E F0
O 2F 00 ; (00: Sec; 08:Minute)

Set base timer:
O 2E F1
O 2F 0A ; Set reset time (where 0A (hex) = 10sec)