Asus Aaeon BOXER-6639M User Manual page 104

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SIOBitRead(byte LDN, byte Register, byte BitNum)
Boolean
Byte TmpValue;
SIOEnterMBPnPMode();
SIOSelectLDN(LDN);
IOWriteByte(SIOIndex, Register);
TmpValue = IOReadByte(SIOData);
TmpValue &= (1 << BitNum);
SIOExitMBPnPMode();
If(TmpValue == 0)
Return 0;
Return 1;
}
ConfigToOutputMode(byte LDN, byte Register, byte BitNum)
VOID
Byte TmpValue, OutputEnableReg;
OutputEnableReg = Register-1;
SIOEnterMBPnPMode();
SIOSelectLDN(LDN);
IOWriteByte(SIOIndex, OutputEnableReg);
TmpValue = IOReadByte(SIOData);
TmpValue |= (1 << BitNum);
IOWriteByte(SIOData, OutputEnableReg);
SIOExitMBPnPMode();
}
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Appendix C – Digital I/O Information
{
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