| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent lengthening of access time even in occurrence of rewrite in a flash memory. <P>SOLUTION: The flash memory system 1 including the flash memory 2 comprises an FRAM 4 of overwritable nonvolatile memory, and management information used in management for access to the flash memory 2 is stored in the FRAM 4. An address conversion table for converting a logic address given from a host system 20 and a physical address on the flash memory 2 is stored in the FRAM 4, whereby rewrite of a part of the address conversion table on the FRAM 4 is just needed, and the access time to the flash memory 2 is never lengthened. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
