Eurotech Appliances CPU-1461 user manual Use following code to refresh the Watch Dog

46			PC/104-Plus – CPU-1461 Module
	MOV	DX,IO_SPIO_WDT_BASE	; Timeout Period Register
	MOV	AL,DesideredTimeout	; 2..255 seconds/minutes
	OUT	DX,AL

Use following code to refresh the Watch Dog :

; Reload original Timeout...

MOV	DX,IO_SPIO_WDT_BASE
MOV	AL,DesideredTimeout	; 2..255 seconds/minutes
OUT	DX,AL

Use the following code to disable the Watch Dog (no additional refresh required):

; Set Timeout to 0 Seconds ...

MOV	DX,IO_SPIO_WDT_BASE	; Timeout Period Register
MOV	AL,0
OUT	DX,AL

•Note: for further information about the Watch Dog programming, refer to “PC87364 128-Pin LPC SuperI/O” manual by National Semiconductor.