to read the set values and {HEAD ~ image data} out of first address space of said storage unit using {TAIL ~ direct memory access} 
to read the set values and { HEAD ~ image data } out of first address space of said storage unit using { TAIL ~ direct memory access }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL