9 Replies Latest reply on Jul 3, 2020 8:32 AM by GaK_4661021

    CX3 custom board: USB-3.0 enumeration issue

    GaK_4661021

      Hi,

       

      We have developed custom hardware based on CX3. We are unable to enumerate our hardware on USB-3.0. We have USB-3.0 pin connection as below,

      CX3       --- Connector Micro-B

      SSRXM --- Pin9(SSRX-)

      SSRXP ---  Pin10(SSRX+)

      SSTXP ---  Pin7(SSTX+)

      SSTXM ---  Pin6(SSTX-)

       

      I have read in one KBA(USB Differential Pair Pin Inversion - KBA218753 ) that pin inversion is recommended for SSRXM and SSRXP but in our design, it is not followed as you can see above pin mapping. What could be the issue in our case?