DFI NP951-B16C - Manual (Page 122)

122
A
Watchdog Timer
NEWIODELAY
mov dx, SuperIo_DAT_Port
in al, dx
NEWIODELAY
endM
mSuperio_LDN_Select Macro LDN
mSuperio_Set_Reg 07h, LDN
endM
mSuperio_Set_Reg Macro RegIndex, SetValue
mov dx, SuperIo_CFG_Port
mov al, RegIndex
out dx, al
NEWIODELAY
mov dx, SuperIo_DAT_Port
mov al, SetValue
out dx, al
NEWIODELAY
endM
NEWIODELAY Macro
out 0EBh, al ;Dummy I/O output for delay
endM
.code
start:
call W83627Hx_WDT
mov ah, 4ch
int 21h
W83627Hx_WDT Proc near
;LDN8
;CRF5[3] :RW 0/1 = WDTO Second/Minute
;CRF5[2] :RW 0/1 = Keyboard Reset Low/High when WDTO Timeout
;CRF6[7:0]:RW 00h = Disable , 01h~0FFh = 1~255 Sec/Min.
;CRF7[7] :RW 0/1 = Disable/Enable Mouse interrupt reset WDTO counting.
;CRF7[6] :RW 0/1 = Disable/Enable Keyboard interrupt reset WDTO counting.
;CRF7[5] :WO 1 = Force WDTO time out(Auto clear).
;CRF7[4] :RW 0/1 = WDTO time status TimeOut/Counting.
;CRF7[3:0]:RW 0~7 = Low IRQ for WDTO (Typical is 2, means SMI).
mSuperio_Enter_Config
mSuperio_LDN_Select 08h