Target Error and Warning Register.
| OVR | Internal FIFO overrun flag. |
| UNR | Internal FIFO underrun flag. |
| UNR_NACK | I3C or I2C mode address emitted by the IP was NACKed by the targets. |
| CONT_RX_TERM | Controller terminated read in message mode. |
| INVSTART | Invalid START. |
| SDR_PAR | SDR Parity Error. |
| TO | Timeout Error. |
| RX_UNR | Read data underrun. |
| TX_OVR | Write data overrun. |