Asus AAEON FWS-2276 User Manual page 70

************************************************************************************
VOID SIOEnterMBPnPMode(){
Switch(SIOIndex){
Case 0x2E:
IOWriteByte(SIOIndex, 0x87);
IOWriteByte(SIOIndex, 0x01);
IOWriteByte(SIOIndex, 0x55);
IOWriteByte(SIOIndex, 0x55);
Break;
Case 0x4E:
IOWriteByte(SIOIndex, 0x87);
IOWriteByte(SIOIndex, 0x01);
IOWriteByte(SIOIndex, 0x55);
IOWriteByte(SIOIndex, 0xAA);
Break;
}
}
VOID SIOExitMBPnPMode(){
IOWriteByte(SIOIndex, 0x02);
IOWriteByte(SIOData, 0x02);
}
VOID SIOSelectLDN(byte LDN){
IOWriteByte(SIOIndex, 0x07); // SIO LDN Register Offset = 0x07
IOWriteByte(SIOData, LDN);
}
************************************************************************************
Appendix A – Watchdog Timer Programming 58