Aaeon EPIC-QM77, Manual, Page: 139 / 139

E P I C B o a r d E P I C - Q M 7 7
Appendix D Electrical Specifications for I/O Ports
D-13
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Boolean
SIOBitRead(byte LDN, byte Register, byte BitNum)
{
Byte TmpValue;
SIOEnterMBPnPMode();
SIOSelectLDN(LDN);
IOWriteByte(SIOIndex, Register);
TmpValue = IOReadByte(SIOData);
TmpValue &= (1 << BitNum);
SIOExitMBPnPMode();
If(TmpValue == 0)
Return 0;
Return 1;
}
VOID
ConfigToOutputMode(byte LDN, byte Register, byte BitNum)
{
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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