Also, an eleventh FF is included in {HEAD ~ the memory controller} to receive the output signal of {TAIL ~ the third multiplexer} 
Also , an eleventh FF is included in { HEAD ~ the memory controller } to receive the output signal of { TAIL ~ the third multiplexer }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL