In {TAIL ~ the case} of a P channel device in the output driver, {HEAD ~ the blocking polarity potential} is a positive potential applied to the gate 
In
In { TAIL ~ the case } of a P channel device in the output driver , { HEAD ~ the blocking polarity potential } is a positive potential applied to the gate
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH