Aaeon 32.1840.921-00, Руководство пользователя

Страница: 80 / 97

Appendix A – Watchdog Timer Programming 67
Fan
les
s E
mb
ed
ded
Bo
x
PC
BO
XE
R-
6951
-A01
-1
01
0 /
3
2.1
84
0.9
21
-00
************************************************************************************
VOID SIOEnterMBPnPMode(){
IOWriteByte(SIOIndex, 0x87);
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();
}
************************************************************************************