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SMSC LAN91C111 32/16/8-Bit Three-In-One Fast Ethernet Controller
SMSC AN 9.6 47 Revision 1.0 (08-14-08)
APPLICATION NOTE
{
if (Data & 0x8000)
{ WriteOneToPhy;}
else
{ WriteZeroToPhy;}
Data <<= 1;
}
outport(0x308, 0x3330);
return;
}
int ReadMDI()
{
int i;
BankSelect(3);
outport(0x308, 0x3330);
outport(0x308, 0x3334);
i = inport(0x308);
outport(0x308, 0x3330);
if (i & 0x0002)
{ return 1; }
else
{ return 0; }
}
int ReadFromPhyReg(char RegNo)
{
int Data=0, binvalue, j;
BankSelect(3);
//Write atleast 32 1's to Synchronize the interface.
for (int i=0; i<=31; i++)
{
outport(0x308, 0x3339);
outport(0x308, 0x333D);
}
//Start bits <01>
WriteZeroToPhy
WriteOneToPhy
//Read command bits <10>
WriteOneToPhy
WriteZeroToPhy
//Phy Address, which is 00000 (MSBit first)
WriteZeroToPhy
WriteZeroToPhy