Supports RS232, RS485 & RS422 modes (For RS485 and RS422, external adapter required)Bi-directional speeds from 50 bps to 16 Mbps/PortFull Serial modem controlSupports Hardware, Software flow control5, 6, 7, 8 and 9-bit Serial format supportEven, Odd, None, space & Mark parity supportedCustom BAUD Rates supported with external clock or by programming internal PLLOn Chip 256 Byte depth FIFOs in Transmit, Receive path of each Serial PortSupports remote wake up and power management featuresSerial Port transceiver shutdown supportSupports Slow IrDA on all Serial Ports IEEE1284