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TUSB542: TUSB542 AC Termination / TUSB321 Pin Usage / Schematic review

Stephen Swearingen
Prodigy 50 points
Part Number: TUSB542
Other Parts Discussed in Thread: TUSB321,

Hello,

I have read quite a few post regarding TUSB542 and TUSB321, but still have some questions.

Schematic is attached to hopefully clarify (still work in progress).

Configuration:

  • My board has an SoC and has the USB 3.0 port configured as a device port.
  • I am using the TUSB542 in UFP mode.
  • I am using the TUSB321 as the CC controller.
    • DS does not have any specific UFP example.
    • DS does not explicitly states what to do with some of the pins when in UFP mode

Questions/Request

  1. Can you verify the AC termination for the SS lines  please.
    1. Reference: e2e.ti.com/.../3428609
  2. Can you verify the TUSB321 pins are okay to leave unconnected in UFP mode.

Regards,
Steve