TXRDY=not_ready, TXLAST=pause_on_last
Transmit Control Register 1.
| TXRDY | Transmit FIFO Preload Ready. 0 (not_ready): TX FIFO not ready to transmit preloaded data. 1 (ready): TX FIFO ready to transmit preloaded data. |
| TXLAST | Slave mode transmit last. 0 (pause_on_last): Hold SCL low after transmitting the last character in the TX FIFO until more characters are loaded. 1 (end_on_last): Release SCL after transmitting the last character in the TXT FIFO. |
| TXFIFO | Transmit FIFO Count. These bits reflect the number of bytes in the TX_FIFO. |