The 89EBPES12T3G2 Evaluation Board (also referred to as EB12T3G2) provides an evaluation platform for the PES12T3G2 switch. It is also a cost effective way to add a PCIe downstream port (x4) to an existing system with a limited number of PCIe downstream ports. The EB12T3G2 eval board is designed to function as an add-on card to be plugged into a x4 PCIe slot available on a motherboard hosting an appropriate root complex, microprocessor(s), and two downstream ports. The EB12T3G2 is a vehicle to test and evaluate the functionality of the PES12T3G2 chip. Customers can use this board to get a headstart on software development prior to the arrival of their own hardware. The EB12T3G2 is also used by Renesas to reproduce system-level hardware or software issues reported by customers. 


  • Hardware
    • PES12T3G2 PCIe 3 port switch
    • Upstream, Downstream Port
    • Numerous user selectable configurations set using onboard jumpers and DIP-switches
    • SMBUS Slave Interface (4 pin header)
    • SMBUS Master Interface connected to the Serial EEPROMs through I/O expander
    • “Attention” button for each downstream port to initiate a hot swap event on each port
    • Four pin connector for optional external power supply
    • Push button for Warm Reset
    • Several LEDs to display status, reset, power, “Attention”, etc.
    • One 10-pin JTAG connector (pitch 2.54 mm x 2.54 mm)
  • Software
    • Installation programs
    • GUI based application for Windows and Linux


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