– 256Byte TX/RX FIFOs
– Dedicated two Control Pins for RS422 and RS485 Bus Auto Control
– Data Rate up to 5.3Mbps
– Global Interrupt and Interrupt Vector Processing
– H/W and S/W Flow Control (Auto-RTS/CTS and Xon/Xoff)
– Expandable up to 32 ports without any glue logics in the MIO Bus