5 Replies Latest reply on Jun 12, 2013 8:12 AM by prajith.cheerakkoda

    USB differential pair pin inversion

    maciej.przybysz

      Hi,

         

      I've read in one of the app notes that I could swap differencial pair polarity (N -> P, P -> N). I assume that this applies only to pairs of Tx and Rx, right? Or D+ and D- could also be swapped?

         

      I think that D+/D- can't be swapped becouse one pair polarity must be known to negotiate another two. Am I right?

         

      Or maybe polarity inversion is not desirable even on Tx/Rx pairs?

         

       

         

      Best regerds,

         

      MP