The VBUS signal may be connected to logic to change {HEAD ~ the polarity} of {TAIL ~ the enable signal} 
The VBUS signal may be connected to logic to change { HEAD ~ the polarity } of { TAIL ~ the enable signal }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL