Asus AAEON FWS-2272 User Manual page 71

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VOID SIOEnterMBPnPMode(){
Switch(SIOIndex){
Case 0x2E:
IOWriteByte(SIOIndex, 0x87);
IOWriteByte(SIOIndex, 0x01);
Case 0x4E:
IOWriteByte(SIOIndex, 0x87);
IOWriteByte(SIOIndex, 0x01);
Break;
}
}
VOID SIOExitMBPnPMode(){
IOWriteByte(SIOIndex, 0x02);
IOWriteByte(SIOData, 0x02);
}
VOID SIOSelectLDN(byte LDN){
IOWriteByte(SIOIndex, 0x07);
IOWriteByte(SIOData, LDN);
}
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Appendix A – Watchdog Timer Programming
IOWriteByte(SIOIndex, 0x55);
IOWriteByte(SIOIndex, 0x55);
Break;
IOWriteByte(SIOIndex, 0x55);
IOWriteByte(SIOIndex, 0xAA);
// SIO LDN Register Offset = 0x07
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