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TPS65988: Titan ridge output ports

Part Number: TPS65988

Hi team,

On the Intel titan ridge reference design, it shows that TR have one PCIe Gen 3, one DP and one USB3.1 Gen 2 output as below shows:

if there is a docking which have two hub (one gen 1, 4 port hub/ one gen 2, 4 port hub),

How to design relative position between hub and titan ridge?

Is it possible that two hubs all connect to TR's USB3.1 gen 2 output or one of the hub have to connect to TR's PCIe output?

It would be very appreciated if you could provide an brief block diagram to demonstrate the solution.

Best regards,

Jamie Tseng

  • Hi Jamie,

    I am looking into your query, I'll have someone revert back to you witnin a day or two.

    Thanks,
    Rahul
  • Hi Jamie,

    There are three options.

    1. You can connect the USB3.1 gen2 to the output of the USB2 muxes and U0_SSTX/RX from the ridge and cascade the gen1 hub from one of the downstream ports from the gen2 hub
    2. You can put the gen2 hub on the PCIe with a bridge and use the output of the USB2 muxes and U0_SSTX/RX from the ridge for the gen1 hub
    3. Or you could try the gen2 hub on the PCIe and cascade the gen1 hub

    Jacob