93
AIMB-221 User Manual
Appendix A
P
rogramming
the
W
atchdog
Timer
Dec dx
; Set second as counting unit
Mov
al,0f5h
Out
dx,al
Inc
dx
In
al,dx
And al,not 08h
Out
dx,al
;-----------------------------------------------------------
Dec dx
; Set timeout interval as 10 seconds and start counting
Mov
al,0f6h
Out
dx,al
Inc
dx
Mov
al,10
Out
dx,al
;-----------------------------------------------------------
Dec dx
; lock W83627HF
Mov
al,0aah
Out
dx,al
Enable watchdog timer and set 5 minutes as the timeout interval
;-----------------------------------------------------------
Mov dx,2eh ; unlock W83627HF
Mov al,87h
Out dx,al
Out dx,al
;-----------------------------------------------------------
Mov al,07h ; Select registers of watchdog timer
Out
dx,al
Inc
dx
Mov
al,08h
Out
dx,al
;-----------------------------------------------------------
Dec dx
; Enable the function of watchdog timer
Mov
al,30h
Out
dx,al
Inc
dx
Mov
al,01h
Out
dx,al
;-----------------------------------------------------------
Dec dx
; Set minute as counting unit
Mov
al,0f5h
Out
dx, al
Inc
dx
In
al,dx
Or al, 08h
Out
dx,al
Summary of Contents for AIMB-221
Page 11: ...Chapter 1 1 Hardware Configuration...
Page 25: ...Chapter 2 2 Connecting Peripherals...
Page 30: ...AIMB 221 User Manual 20 2 4 Front Panel Connectors JFP1 JFP2 JFP3...
Page 38: ...AIMB 221 User Manual 28 2 9 Parallel Port LPT1...
Page 52: ...AIMB 221 User Manual 42 2 21 Serial ATA Interface SATA1 SATA2 SATA3 SATA4...
Page 57: ...47 AIMB 221 User Manual Chapter 2 Connecting Peripherals 2 24 LVDS...
Page 60: ...AIMB 221 User Manual 50...
Page 61: ...Chapter 3 3 Award BIOS Setup...
Page 80: ...AIMB 221 User Manual 70...
Page 81: ...Chapter 4 4 Chipset Software Installation Utility and VGA Setup...
Page 91: ...Chapter 5 5 LAN Configuration...
Page 95: ...Chapter 6 6 AC97 Audio Setup...
Page 98: ...AIMB 221 User Manual 88...
Page 99: ...Appendix A A Programming the Watchdog Timer...
Page 107: ...97 AIMB 221 User Manual Appendix A Programming the Watchdog Timer...