CMODE=ASYNC, FORM=USART_FRAME_NO_PARITY, MODE=USART_EXT_CLK, RXPO=PAD0, CPOL=IDLE_LOW, DORD=MSB, TXPO=PAD0, SAMPR=16X_ARITHMETIC
USART_INT Control A
| SWRST | Software Reset |
| ENABLE | Enable |
| MODE | Operating Mode 0 (USART_EXT_CLK): USART with external clock 1 (USART_INT_CLK): USART with internal clock 2 (SPI_SLAVE): SPI in slave operation 3 (SPI_MASTER): SPI in master operation 4 (I2C_SLAVE): I2C slave operation 5 (I2C_MASTER): I2C master operation |
| RUNSTDBY | Run during Standby |
| IBON | Immediate Buffer Overflow Notification |
| TXINV | Transmit Data Invert |
| RXINV | Receive Data Invert |
| SAMPR | Sample 0 (16X_ARITHMETIC): 16x over-sampling using arithmetic baudrate generation 1 (16X_FRACTIONAL): 16x over-sampling using fractional baudrate generation 2 (8X_ARITHMETIC): 8x over-sampling using arithmetic baudrate generation 3 (8X_FRACTIONAL): 8x over-sampling using fractional baudrate generation 4 (3X_ARITHMETIC): 3x over-sampling using arithmetic baudrate generation |
| TXPO | Transmit Data Pinout 0 (PAD0): SERCOM PAD[0] is used for data transmission 3 (PAD3): SERCOM_PAD[0] is used for data transmission |
| RXPO | Receive Data Pinout 0 (PAD0): SERCOM PAD[0] is used for data reception 1 (PAD1): SERCOM PAD[1] is used for data reception 2 (PAD2): SERCOM PAD[2] is used for data reception 3 (PAD3): SERCOM PAD[3] is used for data reception |
| SAMPA | Sample Adjustment |
| FORM | Frame Format 0 (USART_FRAME_NO_PARITY): USART frame 1 (USART_FRAME_WITH_PARITY): USART frame with parity 2 (USART_FRAME_LIN_MASTER_MODE): LIN Master - Break and sync generation 4 (USART_FRAME_AUTO_BAUD_NO_PARITY): Auto-baud - break detection and auto-baud 5 (USART_FRAME_AUTO_BAUD_WITH_PARITY): Auto-baud - break detection and auto-baud with parity 7 (USART_FRAME_ISO_7816): ISO 7816 |
| CMODE | Communication Mode 0 (ASYNC): Asynchronous Communication 1 (SYNC): Synchronous Communication |
| CPOL | Clock Polarity 0 (IDLE_LOW): TxD Change:- Rising XCK edge, RxD Sample:- Falling XCK edge 1 (IDLE_HIGH): TxD Change:- Falling XCK edge, RxD Sample:- Rising XCK edge |
| DORD | Data Order 0 (MSB): MSB is transmitted first 1 (LSB): LSB is transmitted first |