Error correction code generator, generation method of error correction code, error correction device, and error correction method

摘要

Error correction codes are generated by the respective components of an ECC block, then the codes are added so as to generate an error correction code of the ECC block as a whole. Because error correction codes have linearity, the same results can be obtained by adding the error correction codes after they are calculated separately, as the error correction code calculated as a whole ECC block. The error correction code is calculated by separating the ECC block, thereby the number of times to read/write from/to a memory can be restricted as a whole ECC block, and the amount of data to write/read to/from a memory can be reduced.