Aaeon EMB-QM87A Manual do Utilizador descarregar pdf (Página 88)

Mini-ITX EMB-QM87A

Appendix A Programming the Watchdog Timer A-6

A.1 Watchdog Timer Initial Program

Table1:SuperIOrelativeregistertable

 DefaultValue Note

Index 0x2E(Note1)

SIOMBPnPModeIndexRegister

0x2Eor0x4E

Data 0x2F(Note2)

SIOMBPnPModeDataRegister

0x2For0x4F

Table2:Watchdogrelativeregistertable

 LDN Register BitNum Value Note

TimerCounter 0x07(Note3) 0xF6(Note4)  (Note24)

Timeofwatchdogtimer

(0~255)

Thisregisterisbyteaccess

CountingUnit 0x07(Note5) 0xF5(Note6) 3(Note7) 0(Note8)

Selecttimeunit.

0:second

1:minute

WatchdogEnable 0x07(Note9) 0xF5(Note10) 5(Note11) 1(Note12)

0:Disable

1:Enable

TimeoutStatus 0x07(Note13) 0xF5(Note14) 6(Note15) 1 1:Cleartimeoutstatus

OutputMode 0x07(Note16) 0xF5(Note17) 4(Note18) 1(Note19)

SelectWDTRST#outputmode

0:level

1:pulse

WDTRSToutput 0x07(Note20) 0xFA(Note21) 0(Note22) 1(Note23)

Enable/Disable

timeoutoutputviaWDTRST#

0:Disable

1:Enable

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Aaeon EMB-QM87A Manual do Utilizador Página 88