Contec IPC Series User Manual page 73

5. Each Component Function
* 4001h (bit4-6): Alarm out output control
D7 D6
--- WD_S1
Figure 5.6. Alarm Out Output Control Port (4001h)
PO2_M :
Table 5.21. WD_S1, WD_S0: Alarm-out Output Status Settings
WD_S1
0
1
1
0
* 4002h: WDT control
D7
Figure 5.7. WDT Control Port (4002h)
R
W
68
D5 D4 D3
WD_S0 PO2_M RESET
PO PO2/WDT pin output setting
0 : Set the RAS connector's PO2/WDT(12) signal to PO2
(general-purpose output).
1 : Set the RAS connector's PO2/WDT(12) signal to
alarm out.
WD_S0 When power is
turned off
0 OFF
0 OFF
1 OFF
1 OFF
D6 D5
: Cancels WDT stop/alarm.
Read data is undefined.
: Start and clear the WDT
Write A5h to start and clear the WDT.
D2 D1
D0
PIM2 PIM1 PIM0
External alarm output status
When BIOS
starts
*1 *1
OFF
OFF
ON
ON
D4 D3 D2
R/W (default: XXXX0000b)
When When time
WDT starts expires on WDT
OFF ON
ON OFF
ON OFF
OFF ON
D1 D0
R/W
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