64
Watchdog Timer Trigger
After you enable the watchdog timer, your program must write the same factor as
enabling to the watchdog register at least once every time-out period to its
previous setting. You can change the time-out period by writing another timer
factor to the watchdog register at any time, and you must trigger the watchdog
before the new time-out period in next trigger.
;-------------------------------------------------------------------------------------------------------------------
; Set Watch Dog timer to 20 second used base address 308H~309H:
; 308H- Bit 0 read state: When ‘0’ is no time out occur, ‘1’ is timer out occurred
; And write “1” is clear out status.
; 309H is timer unit: Bit1 is set to unit second and Bit2 is set to unit minute.
;-------------------------------------------------------------------------------------------------------------------
Mov
;Mov
ax,03h
ax,05h
;Select unit to Second (Bit-1) and clear time out status (Bit-0)
;Select unit to Minute (Bit-2) and clear time out status (Bit-0)
Mov
Out
dx,308h
dx,ax
Mov
Mov
Out
ax,14h
dx,309h
dx,ax
;Set timer to 20 second and enable time
; Write the same non-zero value twice to enable the timer,
Out
dx,ax
; otherwise will disable timer.
Watchdog Timer Disabled
To disable the watchdog timer, simply write a 00H to the watchdog register.
;----------------------------------------------------------------------------------------------------------
; Enter the extended function mode, interruptible double-write
;----------------------------------------------------------------------------------------------------------
Mov
dx, 309h
; Enter to extended function mode
Mov
al, 00h
Out
dx,al
Out
dx,al
Summary of Contents for TCD-N2600-C2G2-2
Page 1: ...ii TCD N2600 C2G2 2 DIN miniPC User s Guide...
Page 9: ...6...
Page 15: ...12 2U Rack Mount Kit...
Page 19: ...16 7 Connecting the Audio EAR Phone EAR Phone...
Page 37: ...34 Super IO Configuration This section describes the function of Super I O settings...
Page 71: ...68...
Page 80: ...77 145 Appendix Dimension a TCD N2600 C2G2 2 50 4 102...
Page 81: ...18 2 10 5 REF 18 REF On 35mm Din Rails EN 50022 1977 78 72 REF...
Page 82: ...37 5 REF 8 c TCD N2600 C2G2 2 5311K1 100 57 4 79 8 16 REF 75 100...
