1 Reply Latest reply on Sep 17, 2018 10:49 AM by Intel Corporation

    What to do with USB 3.0 ID pin?


      I'm working on designing simple front I/O board that connects to a motherboard. There is a standard connector in the "Intel Internal Connector And Cable Specification" that give a pin-out table of the internal motherboard connector. I have verified that my motherboard matches this.

      The one thing I am confused about at the moment is the purpose and function of the "ID" pin included in the header.

      enter image description here

      Obviously, this forms part of some overcurrent protection circuit, but I have no idea what I'm supposed to do with it.

      Am I just supposed to ground it? Leave it floating? Put some sort of current shunt on it? Have my own over current detection circuit and use this pin to signal over current events?