a pull up unit which pulls up an output terminal of {HEAD ~ the data transfer unit} in {TAIL ~ response} to an output signal from the first logic unit 
in
a pull up unit which pulls up an output terminal of { HEAD ~ the data transfer unit } in { TAIL ~ response } to an output signal from the first logic unit
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH