MODE=USART_EXT_CLK
USART Control A
| SWRST | Software Reset |
| ENABLE | Enable |
| MODE | Operating Mode 0 (USART_EXT_CLK): USART mode with external clock 1 (USART_INT_CLK): USART mode with internal clock 2 (SPI_SLAVE): SPI mode with external clock 3 (SPI_MASTER): SPI mode with internal clock 4 (I2C_SLAVE): I2C mode with external clock 5 (I2C_MASTER): I2C mode with internal clock |
| RUNSTDBY | Run during Standby |
| IBON | Immediate Buffer Overflow Notification |
| SAMPR | Sample |
| TXPO | Transmit Data Pinout |
| RXPO | Receive Data Pinout |
| SAMPA | Sample Adjustment |
| FORM | Frame Format |
| CMODE | Communication Mode |
| CPOL | Clock Polarity |
| DORD | Data Order |