Aaeon EMB-QM87A User Manual download pdf (Page 112)

Mini-ITX EMB-QM87A

Appendix E Electrical Specifications for I/O Ports D-8

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VOID

SIOEnterMBPnPMode(){

 IOWriteByte(SIOIndex,0x87);

}



VOID

SIOExitMBPnPMode(){

 IOWriteByte(SIOIndex,0xAA);

}



VOID

SIOSelectLDN(byteLDN){

IOWriteByte(SIOIndex,0x07);//SIOLDNRegisterOffset=0x07

 IOWriteByte(SIOData,

LDN);

}



VOID

SIOBitSet(byteLDN,byteRegister ,byteBitNum,byteValue){

 ByteTmpValue;



 SIOEnterMBPnPMode();

SIOSelectLDN(byte

LDN);

 IOWriteByte(SIOIndex,Register);

 TmpValue=IOReadByte(SIOData);

 TmpValue&=~(1<<BitNum);

 TmpValue|=(Value<<BitNum);

 IOWriteByte(SIOData,TmpValue);

 SIOExitMBPnPMode();

}



VOID

SIOByteSet(byteLDN,byteRegister,byteValue){

 SIOEnterMBPnPMode();

SIOSelectLDN(LDN);

 IOWriteByte(SIOIndex,Register);

IOWriteByte(SIOData,

Value);

SIOExitMBPnPMode();

}

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