| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To extend the life of a nonvolatile storage device using a nonvolatile memory by preventing a failure of the nonvolatile memory. <P>SOLUTION: The nonvolatile storage device comprises the nonvolatile memory having a plurality of physical blocks and a controller. The controller selects a plurality of physical blocks from the nonvolatile memory as first reservation blocks, makes any one of the first reservation blocks store a first table showing the correlation between a logic address inputted and the physical address of the nonvolatile memory, and makes the nonvolatile memory store a second table showing the physical addresses of the first reservation blocks. When writing is performed to the nonvolatile memory, the controller rewrites the first table, and makes a block different from the one which stored the first table before rewriting of the first reservation blocks store the rewritten first table. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
