At block 440, such ECC may be written to {TAIL ~ a spare area} of NAND memory while associated information may be written to a main area of {HEAD ~ NAND memory} 
At block 440 , such ECC may be written to { TAIL ~ a spare area } of NAND memory while associated information may be written to a main area of { HEAD ~ NAND memory }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD