The latch 62 is reset by the RUN signal and is gated to receive data from the data BUS under {HEAD ~ control} of {TAIL ~ the signal} I63 
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The latch 62 is reset by the RUN signal and is gated to receive data from the data BUS under { HEAD ~ control } of { TAIL ~ the signal } I63
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH