{HEAD ~ A first address compare circuit} compares a received address for {TAIL ~ the first memory} with the first redundant address 
{ HEAD ~ A first address compare circuit } compares a received address for { TAIL ~ the first memory } with the first redundant address
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH