Omap 3530 have three UARTs and Omap 3730 (DM3730) have four UARTs. Omap UART peripheral use four signals:
- *UART TX: Transmit signal.<br>- *UART RX: Receive signal.<br>- *UART RTS: Ready to send, used in RS485 and hardware flow control. <br>- *UART CTS: Clear to send, used in RS485 and hardware flow control.<br> <br>
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.
'''NOTE:''' UART4 (avaliable in DM3730) is not avaliable in IGEPv2. But IGEP COM MODULE can use it, it is avaliable on:<br>
- *gpmc_wait3/uart4_rx - J8 pin: UART4 Receive data (input) - *gpmc_wait2/uart4_tx - K8 pin: UART4 Transmit data (output) <br>
More information:
