63.10.16 USART Transmit Holding Register (Default Mode)
If FIFO is enabled (FLEX_US_CR.FIFOEN=1), a byte access on FLEX_SPI_TDR writes one byte (FLEX_US_MR.MODE9=0), see FIFO Single Data Access for details.
| Name: | FLEX_US_THR (DEFAULT_MODE) |
| Offset: | 0x21C |
| Reset: | – |
| Property: | Write-only |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| Access | |||||||||
| Reset |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| TXSYNH | TXCHR[8] | ||||||||
| Access | W | W | |||||||
| Reset | – | – |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| TXCHR[7:0] | |||||||||
| Access | W | W | W | W | W | W | W | W | |
| Reset | – | – | – | – | – | – | – | – | |
Bit 15 – TXSYNH Sync Field to be Transmitted
| Value | Description |
|---|---|
| 0 | The next character sent is encoded as a data. Start frame delimiter is DATA SYNC. |
| 1 | The next character sent is encoded as a command. Start frame delimiter is COMMAND SYNC. |
Bits 8:0 – TXCHR[8:0] Character to be Transmitted
The next character to be transmitted after the current character if TXRDY is not set.