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Flash memory accessed using only the logical address

  • US 5,987,563 A
  • Filed: 12/10/1998
  • Issued: 11/16/1999
  • Est. Priority Date: 02/20/1992
  • Status: Expired due to Term
First Claim
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1. A method of controlling a non-volatile memory having a plurality of blocks, said memory being erased by a minimum unit of one block, said method comprising the steps of:

  • (a) dividing each of the blocks of the memory into a plurality of sectors, each of said sectors including a storage portion for storing at least a logical address of the sector, and a data part for storing data; and

    (b) accessing a desired sector of the memory by specifying the logical address of the desired sector, comparing the specified logical address with said logical address stored in each of the sectors, and detecting a sector which has a logical address matching the specified logical address.

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