AXIOMTEK SBC86620 Series, User Manual

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SBC86620 AMD
®
Geode GX3 Mini ITX Board User’s Manual
Watchdog Timer
63
A p p e n d i x A
Watchdog Timer
Watchdog Timer Setting
The watchdog timer makes the system auto-reset while it stops to work
for a period. The integrated watchdog timer can be setup as system
reset mode by program.
Using the Watchdog Function
Start
↓
Un-Lock WDT:
O 2E 87 ; Un-lock super I/O
O 2E 87 ; Un-lock super I/O
↓
Select Logic device:
O 2E 07
O 2F 08
↓
Activate WDT:
O 2E 30
O 2F 01
↓
Set Second or Minute :
O 2E F5
O 2F N N=00 or 08(See below table)
↓
Set base timer :
O 2E F6
O 2F M=00,01,02,…FF(Hex) ,Value=0 to 255
↓
WDT counting re-set timer :
O 2E F6
O 2F M ; M=00,01,02,…FF(See below table)