IDT™ 89EBPES12N3 Rev. 1.0 Evaluation Board User Manual

2022-04-21

● The 89HPES12N3 switch (also referred to as PES12N3 in this manual) is a member of IDT’s PCI Express standard (PCIe) based line of products. It is a 3 port switch, with 4 serial lanes per port (x4). One upstream port is provided for connecting to the root complex (RC), and two downstream ports are available for connecting to PCIe endpoints or to another switch. More information on this device can be found in the 89HPES12N3 User Manual.
● The 89EBPES12N3 Evaluation Board (also referred to as EB12N3 in this manual) provides an evaluation platform for the PES12N3 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 EB12N3 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 and microprocessor(s). The EB12N3 is a vehicle to test and evaluate the functionality of the PES12N3 chip, and it can also play an important role for customers to get a headstart on software development while they await the arrival of their own hardware. It is also used inside IDT to reproduce system level hardware or software issues reported by customers. Figure 1.1 illustrates the functional block diagram representing the main parts of the EB12N3 board.

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2020/01/24

Rev. 1.0

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