| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a storage device allowing load reduction of a memory. <P>SOLUTION: A control unit 46 writes a first flag into a first page of a managing block when starting writing of user data into a block for the user data, and writes a second flag into a second page different from the first page when the writing of the user data ends. The control unit 46 decides that the user data corresponding to the first flag is normally written in the block for the user data when the first flag and the second flag are written in the first page and the second page, respectively, does not perform erasure processing to the block written with the user data, and estimates that the user data corresponding to the first flag is not normally written in the block for the user data when the second flag is not written in the second page though the first flag is written in the first page. <P>COPYRIGHT: (C)2011,JPO&INPIT |
