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AIMB-223 User Manual
Appendix A
P
rogramming
the
W
atchdog
Timer
Dec dx ; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;-----------------------------------------------------------
Dec dx ; Enable watchdog timer to be reset by mouse
Mov al,0f7h
Out dx,al
Inc dx
In al,dx
Or al,80h
Out dx,al
;-----------------------------------------------------------
Dec dx ; Lock W83627DHG-P
Mov al,0aah
Out dx,al
4.
Enable watchdog timer to be reset by keyboard
;-----------------------------------------------------------
Mov dx,2eh ; Unlock W83627DHG-P
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 ; Enable watchdog timer to be strobed reset by keyboard
Mov al,0f7h
Out dx,al
Inc dx
In al,dx
Or al,40h
Out dx,al
Summary of Contents for AIMB-223G2-S2A2E
Page 12: ...AIMB 223 User Manual xii...
Page 13: ...Chapter 1 1 General Information...
Page 30: ...AIMB 223 User Manual 18...
Page 31: ...Chapter 2 2 Connecting Peripherals...
Page 42: ...AIMB 223 User Manual 30...
Page 43: ...Chapter 3 3 BIOS Operation...
Page 59: ...Chapter 4 4 Software Introduction Service...
Page 63: ...Chapter 5 5 Chipset Software Installation Utility...
Page 66: ...AIMB 223 User Manual 54...
Page 67: ...Chapter 6 6 VGA Setup...
Page 69: ...Chapter 7 7 LAN Configuration...
Page 72: ...AIMB 223 User Manual 60...
Page 73: ...Appendix A A Programming the Watchdog Timer...