The program memory 420 commonly applies {TAIL ~ the selection control signal} to {HEAD ~ the second group multiplexers} 431 434 
The program memory 420 commonly applies { TAIL ~ the selection control signal } to { HEAD ~ the second group multiplexers } 431 434
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH