The controller of the CC13x2x7 and
CC26x2x7
device platform includes a UART with the following features:
- Programmable baud-rate generator allowing speeds up to 3 Mbps
- Separate 32 × 8 transmit (TX) and 32 × 12 receive (RX) first-in first-out (FIFO) buffers to reduce CPU interrupt service loading
- Programmable FIFO length, including 1-byte deep operation providing conventional double-buffered interface
- FIFO trigger levels of ⅛, ¼, ½, ¾, and ⅞
- Standard asynchronous communication bits for start, stop, and parity
- Line-break generation and detection
- Fully programmable serial interface characteristics:
- 5, 6, 7, or 8 data bits
- Even, odd, stick, or no parity bit generation and detection
- 1 or 2 stop-bit generation
- Support for modem control functions CTS and RTS
- Independent masking of the TX FIFO, RX FIFO RX time-out, modem status, and error conditions
- Standard FIFO-level and end-of-transmission interrupts
- Efficient transfers using micro direct memory access controller (μDMA):
- Separate channels for transmit and receive
- Receive single request asserted when data is in the FIFO; burst request asserted at programmed FIFO level
- Transmit single request is asserted when there is space in the FIFO; burst request is asserted at programmed FIFO level
- Programmable hardware flow control