SPLW=0, SPRDTD=0
SPI Data Control Register
| Reserved | These bits are read as 0000. The write value should be 0000. |
| SPRDTD | RSPI Receive/Transmit Data Selection 0 (0): SPDR values are read from the receive buffer 1 (1): SPDR values are read from the transmit buffer (but only if the transmit buffer is empty) |
| SPLW | SPI Word Access/Halfword Access Specification 0 (0): SPDR_HA is valid to access in halfwords 1 (1): SPDR is valid (to access in words). |
| Reserved | These bits are read as 00. The write value should be 00. |