NONVOLATILE MEMORY, MEMORY CONTROLLER, NONVOLATILE MEMORY ACCESSING METHOD, AND PROGRAM

PROBLEM TO BE SOLVED: To provide a nonvolatile memory made of memory cells accessible in units of a byte and permitting ECC processing in units of an optimal data size for required access, a memory controller, a nonvolatile memory accessing method, and a program.SOLUTION: Disclosed herein is a nonvolatile memory including: a nonvolatile memory cell device including at least a nonvolatile memory cell array accessible in units of a word and further accessible with a fixed latency in a first access mode and with a variable latency in a second access mode; a first ECC processing part configured in a first access path and to perform error detection and correction using an ECC on the data output from the memory cell array in the first access mode; and a second ECC processing part configured in a second access path and to perform error detection and correction using the ECC on the data output from the memory cell array in the second access mode.