AXIOMTEK SBC817, User Manual

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SBC81700 VIA V4 SBC User’s Manual
Watchdog Timer
58
Watchdog Timer
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
↓
Set WDT Function:
O
2E 29
O 2F 20
↓
Activate WDT: O 2E 30
O 2F 01
↓
Set base timer: O 2E F4
O 2F M; M=00, 01, 02…FF (Hex), Value=0 to 255
↓
WDT counting
↓
Re-set timer: O 2E F4
O 2F M; M=00, 01, 02…FF
↓
IF No re-set timer : WDT time-out, generate RESET
IF to disable WDT O 2E 30
O 2F 00; Can be disable at any time