不揮発性記憶装置及びその書き込み判定方法

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that it becomes the same as the entire deletion completion though the deletion of a physical page is not completed for data after error correction is performed after power interruption immediately after starting write to the physical page and determination as the state that write is normally performed is erroneously made. <P>SOLUTION: When writing the data to a nonvolatile memory, a write mark is surely written simultaneously. Information is read for each of a plurality of write units included in a unit block and the error correction of the read information is performed by an error correction function. Then, a write state for each write unit is determined on the basis of the read information of the write mark. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

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