5. Each Component Function
104
BX710 series User’s Manual
* 4001h (bit4-6): Alarm out output control
---
WD_S0
R/W (Default: XXXX0000b)
WD_S1
PO2_M
PIM2
PIM1
PIM0
RESET
D6
D5
D4
D3
D2
D1
D0
D7
Figure 5.6. Alarm Out Output Control Port (4001h)
PO2_M
: 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.
Table 5.13. WD_S1, WD_S0: Alarm-out Output Status Settings
External alarm output status
WD_S1 WD_S0 When power is
turned off
When BIOS
starts
When
WDT starts
When time
expires on WDT
0 0
OFF
OFF
OFF
ON
1
0
OFF OFF ON OFF
1 1
OFF
ON
ON
OFF
0
1
OFF ON OFF ON
* 4002h: WDT control
R/W
D6
D5
D4
D3
D2
D1
D0
D7
Figure 5.7. WDT Control Port (4002h)
R : Cancels WDT stop/alarm.
Read data is undefined.
W : Start and clear the WDT
Write A5h to start and clear the WDT.
* 4003h: WDT counter
W
D6
D5
D4
D3
D2
D1
D0
D7
T6
T5
T4
T3
T2
T1
T0
T7
Figure 5.8. WDT Counter Port (4003h)
W : Writes watchdog timer count data.
Write watchdog timer counter expiration time data.
1sec
→
01h
8sec
→
08h
15sec
→
0Fh
30sec
→
1Eh
* 4004h : Event output control
---
---
R/W (Default: XXXX0000b)
---
---
WM2
WM1
WM0
RESET
D6
D5
D4
D3
D2
D1
D0
D7
Figure 5.9. Event Output Control Port (4004h)
Содержание BX710 Series
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Страница 17: ...2 System Reference 10 BX710 series User s Manual Physical Dimensions BX 710 AC5 Figure 2 1 BX 710 AC5 ...
Страница 18: ...2 System Reference BX710 series User s Manual 11 BX 710P2 AC5 Figure 2 2 BX 710P2 AC5 ...
Страница 19: ...2 System Reference 12 BX710 series User s Manual BX 710P4 AC5 Figure 2 3 BX 710P4 AC5 ...
Страница 35: ...3 Hardware Setup 28 BX710 series User s Manual ...
Страница 61: ...4 BIOS Setup 54 BX710 series User s Manual OnChip IDE Device Figure 4 9 On Chip IDE Device ...
Страница 78: ...4 BIOS Setup BX710 series User s Manual 71 Description Choice ...
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