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Method and apparatus for grouping pages within a block

  • US 7,254,668 B1
  • Filed: 10/28/2002
  • Issued: 08/07/2007
  • Est. Priority Date: 10/28/2002
  • Status: Expired due to Fees
First Claim
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1. A memory system comprising:

  • a non-volatile memory, the non-volatile memory including a first physical block, the first physical block including a plurality of physical pages, the plurality of physical pages being grouped into a plurality of physical groups, wherein each physical group of the plurality of physical group includes two or more physical pages;

    code devices for mapping a first logical block to the first physical block, the first logical block corresponding to a plurality of logical pages grouped into a plurality of logical groups, each logical group of the plurality of logical groups including two or more logical pages;

    code devices for writing input data into a first physical page included in a first physical group of the first physical block responsive to the input data being associated with a first logical page in a first logical group of the first logical block;

    wherein the code devices for writing input data are also for writing input data into a first physical page included in a second physical group responsive to then receiving input data associated with a first logical page in a second logical group of the first logical block, and for writing input data into a second physical page in a third physical group of the first physical block responsive to then receiving input data associated with a second logical page in the first logical group;

    and further comprising;

    code devices for retrieving data from the second physical page in the third physical group and the first physical page in the first physical group responsive to a read command requesting retrieval of data from the first logical group.

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