The 89HP0504P (QFN2) Repeater cabling evaluation kit is a set of 2-boards designed to allow testing of PCIe2 cabled and mux/demux applications. There is a host interface board and endpoint interface board which can be connected via cable.
The host side board is installed into a desktop PC, workstation or server. Using the Repeaters mux/demux function, one PCIe lane can be routed to either the PCIe cable connector, or to a PCIe slot connector.
The endpoint side board also uses the Repeaters mux/demux feature to route the PCIe cable connection to either a 1-lane PCIe slot, or to a set of SMA connectors for attaching a lab instrument.
A 1-lane adapter card such as Ethernet or USB3 can be plugged into the PCIe slot of either card, as determined by the muxing modes. A 4-lane, PCIe standard Molex iPass cable is needed for making the cable connections. Only 1-lane is actively used. Note that Renesas does not include cables with this kit, which the user must provide at a length suitable for the application.
Both boards provide a USB-to-I2C bridge circuit which allows convenient connection to a PC for accessing the Repeaters control and status registers via Renesas’s Repeater configuration utility for Windows (GUI). The Repeaters receiver, transmitter, and many other device configuration parameters can be adjusted with the GUI to provide optimum operating margins. An on-board serial-EEPROM allows configuration code to be stored and automatically reloaded into the repeater for later re-use.