The pump up circuit may be configured to generate a pump up signal in {HEAD ~ response} to the data signal, and {TAIL ~ the control signal} 
to
The pump up circuit may be configured to generate a pump up signal in { HEAD ~ response } to the data signal , and { TAIL ~ the control signal }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL