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