USB differential pair pin inversion | Cypress Semiconductor
USB differential pair pin inversion
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?