An address sequencer provides a sequence of {HEAD ~ addresses} to {TAIL ~ the image buffer} and to a response memory 
An address sequencer provides a sequence of { HEAD ~ addresses } to { TAIL ~ the image buffer } and to a response memory
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH