PCIe chip solution(OXFORD OXPCIe958 chip)
and Pericom PI7C9X111 Bridge Chip

•  Four full-duplex asynchronous channels
•  8 Port serial breakout cable from one VHDCI interface

•  Automated in-Band, Xon/Xoff flow control

•  Full 128-byte receiver and transmitter FIFOs, fully adjustable IRQ trigger levels and automated flow-control

•  Includes both low and full profile brackets

•  IRQ sharing saves resources and eliminates conflicts

•  Labeled DB9 connectors reduce confusing with setting COM ports

•  Parity Support: None, Odd, Even, Space, Mark

•  PCI Bus specification 2.2 and Power management 1.0 compliant

•  Supports 4,5,6,7,8 Data Bits, and 1, 1.5, 2 Stop Bits