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TUSB1002: TX/RX positive and negative connections.

Kengo.Y
Guru 10615 points
Part Number: TUSB1002

Hi team,

Is it possible to connect P and N of TXx/RXx in reverse?
The customer needs to swap P and N in the wiring layout.

Sincerely.
Kengo.
  • +1
    TI__Guru**** 153841 points

    Kengo-san

    Polarity swapping is supported by the USB3 spec as a way to ease the board layout. The SSTX and SSRX pairs can be swapped and during SuperSpeed handshake, training sequences TSEQ are sent and the D10.2 symbol is used to detect if lane polarity inversion is done (refer to section 6.4.2 of the USB 3.0 spec).

    Thanks

    David