SWCU192 November 2021 CC1312R7 , CC1352P7 , CC2652P7 , CC2652R7
Each CC13x2x7 and CC26x2x7 UART performs the functions of parallel-to-serial and serial-to-parallel conversions. The CC13x2x7 and CC26x2x7 UART is similar in functionality to a 16C550 UART, but is not register compatible.
The UART is configured for transmit and receive through the UART Control Register (UART:CTL) TXE and RXE bits. Transmit and receive are both enabled out of reset. Before any control registers are programmed, the UART must be disabled by clearing the UART:CTL UARTEN register bit. If the UART is disabled during a transmit or receive operation, the current transaction completes before the UART stops.