The CC3235x device includes two UARTs with the following features:
- Programmable baud-rate generator allows speeds up to 3 Mbps
- Separate 16-bit × 8-bit TX and RX FIFOs to reduce CPU interrupt service loading
- Programmable FIFO length, including a 1-byte-deep operation providing conventional double-buffered interface
- FIFO trigger levels of 1/8, 1/4, 1/2, 3/4, and 7/8
- Standard asynchronous communication bits for start, stop, and parity
- Generation and detection of line-breaks
- Fully programmable serial interface characteristics:
- 5, 6, 7, or 8 data bits
- Generation and detection of even, odd, stick, or no-parity bits
- Generation of 1 or 2 stop-bits
- RTS and CTS hardware flow support
- Standard FIFO-level and End-of-Transmission interrupts
- Efficient transfers
using 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
asserted when there is space in the FIFO; burst request asserted at
programmed FIFO level
- System clock is used to generate the baud clock.