– 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

          

          

          
