User`s manual

EP850 All-In-One EPIC Board User’s Manual
Watchdog Timer
58
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 00
Set WDT Funtion :
O 2E 2B
O 2F C0
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 F4
O 2F M ; M=00,01,02,…FF(See below table)
↓
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