public byte Read()
{
if (com == null)
{
return(0);
}
return((byte)com.ReadByte()); // fixme
}
public byte ReadRegister(byte addr)
{
switch (addr)
{
case UARTDATA:
{
byte data;
if (_attachedDevice.ReadByte(out data))
{
return(data);
}
return(0);
}
case UARTSTAT:
return((byte)((_attachedDevice.WasReceived() ? 1 : 0) << 7 | (_attachedDevice.IsSending() ? 1 : 0) << 6));
default:
throw new Exception("UART: Reading invalid register " + addr);
}
}