6. Watch-Dog-Timer (WDT) Setting
SPC-8520-LA, SPC-8521-LA
39
;------------------------------------------
;Exit the extended function mode
;------------------------------------------
MOV DX,2EH
MOV AL,AAH
OUT DX,AL
;================================
;<WDT START : counter set and a start >
;================================
;---------------------------------------------
;Enter the extended function mode
;---------------------------------------------
MOV DX,2EH
MOV AL,87H
OUT DX,AL
OUT DX,AL
;------------------------------------------------
;Select logical device WDT(number 8)
;------------------------------------------------
MOV DX,2EH
MOV AL,07H
OUT DX,AL
MOV DX,2FH
MOV AL,08H
OUT DX,AL
;------------------------------------------------------
;Set time of WDT and start to count down
;------------------------------------------------------
MOV DX,2EH
MOV AL,F6H
OUT DX,AL
MOV DX,2FH
;----------------------------------------------------------------------------------
;The data of an example is 15 seconds.(01H=1sec.- FFH=255sec.)
MOV AL,0FH ; 0FH = 15Sec.
;-----------------------------------------------------------------------------------
OUT DX,AL
;-----------------------------------
;Exit the extended function mode
;-----------------------------------
MOV DX,2EH
MOV AL,AAH
OUT DX,AL
Summary of Contents for SPC-8520-LA
Page 7: ...vi SPC 8520 LA SPC 8521 LA...
Page 13: ...1 Introduction 6 SPC 8520 LA SPC 8521 LA...
Page 19: ...2 System Reference 12 SPC 8520 LA SPC 8521 LA...
Page 41: ...4 Jumper Setting 34 SPC 8520 LA SPC 8521 LA...
Page 43: ...5 Board Resources 36 SPC 8520 LA SPC 8521 LA...
Page 76: ...7 BIOS Setup SPC 8520 LA SPC 8521 LA 69 Description Choice...
