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Device for prioritized erasure of flash memory

  • US 20080059692A1
  • Filed: 05/03/2007
  • Published: 03/06/2008
  • Est. Priority Date: 09/04/2006
  • Status: Active Grant
First Claim
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1. A non-volatile storage device having prioritized-erasure capabilities, the device comprising:

  • (a) a storage memory for storing data in the storage device, said storage memory having at least one flash unit, wherein each flash unit has a plurality of blocks; and

    (b) a storage-device controller configured;

    (i) to write said data into said plurality of blocks;

    (ii) to assign an erasure-priority to each said block, wherein said erasure-priority correlates with an erasure-priority of said data; and

    (iii) to erase said data in said each block according to said erasure-priority of said each block upon receiving an emergency-erase command.

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