RegEPCR
result = _Write1Register(RegEPCR, EPCROpSelect | EPCRRegRead);
result = _ReadRegister(RegEPCR, 1, &control);
result = _Write1Register(RegEPCR, control & ~EPCRRegRead);
result = _Write1Register(RegEPCR, EPCROpSelect | EPCRRegWrite);
result = _ReadRegister(RegEPCR, 1, &control);
result = _Write1Register(RegEPCR, control & ~EPCRRegWrite);