MEMORY CONTROLLER, NONVOLATILE STORAGE MODULE, ACCESS MODULE, AND NONVOLATILE STORAGE SYSTEM

摘要

When a write command is issued, new data is written into an empty physical block of a nonvolatile memory (110). Here, if data of the same logical block has been written already, the block is erased and a recording state is judged by a recording state judgment unit (126). A physical block is swapped according to the number of write processes performed. Thus, it is possible to effectively perform a swap without increasing the number of write processes in a particular region, thereby increasing the service life of a nonvolatile storage module.