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- UART TX: Transmit signal.<br>- UART RX: Receive signal.<br>- UART RTS: Ready to send, used in RS485 and unidirectional communication. <br>- UART CTS: Clear to send, used in RS485 and unidirectional communication.<br>
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Some Omap UART caracteristics:
- 64-byte FIFO for receiver and 64-byte FIFO for transmitter<br> - Programmable interrupt trigger levels for FIFOs<br> - Configurable data format<br> - Data bit: 5, 6, 7, or 8 bits<br> - Parity bit: Even, odd, none<br> - Stop-bit: 1, 1.5, 2 bit(s)<br> - Flow control: Hardware (RTS/CTS) or software (XON/XOFF)<br> - Supports [http://en.wikipedia.org/wiki/Direct_memory_access DMA ] Mode for all UARTs.<br> - The speed transmion data is mesured in bauds per second, for example Kernel console params uses 115200 bps (equivalent to 14 Kbytes per second). The speed can set up from 300 bauds to 3686400 bauds.
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