SPRUJ17I March 2022 – August 2025 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
To select a mode, set the UART_MDR1[2:0] MODE_SELECT bit field (see Table 13-87).
| Value | Mode |
|---|---|
| 0x0: | UART 16× mode |
| 0x1: | SIR mode |
| 0x2: | UART 16× auto-baud |
| 0x3: | UART 13× mode |
| 0x4: | MIR mode |
| 0x5: | FIR mode |
| 0x6: | CIR mode |
| 0x7: | Disable (default state) |
MODE_SELECT is effective when the module is in operational mode (see Section 13.1.4.4.7.1, Register Access Modes).
To select a RS-485 mode, set the UART_MDR3[4] DIR_EN bit field to 0x1.