Non-volatile storage device and control method thereof

Details Non-volatile storage device and control method thereof Non-volatile storage device and control method thereof

G - Physics

11

C

G11C 16/06 (2006.01) G06F 12/02 (2006.01) G11C 16/10 (2006.01) G11C 16/16 (2006.01)

Patent

CA 2474739

A memory card (100) includes: a flash memory (120) having a plurality of physical blocks (122) consisting of a plurality of pages for storing data and a page register (121) for holding data to be written into the pages, and a controller (110) which references, upon data rewrite, a valid block table (114) indicating whether a physical block (122) contains valid data, specifies an invalid block, erases it, and transfer data to be written to the page register (121) while executing the erase.

L'invention concerne une carte mémoire (100) comprenant une mémoire flash (120) dotée d'une pluralité de blocs physiques (122) constitués d'une pluralité de pages de stockage de données et d'un registre de pages (121) permettant de conserver les données à écrire dans les pages, ainsi qu'un contrôleur (110) permettant de désigner, lors d'une réécriture de données, une table de blocs valides (114) indiquant si un bloc physique (122) contient des données valides, de spécifier un bloc invalide, de l'effacer, et de transférer les données à écrire vers le registre de pages (121) pendant l'effacement.

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