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Method and apparatus for dynamically creating conversion tables to access a semiconductor memory device

  • US 5,963,983 A
  • Filed: 04/15/1997
  • Issued: 10/05/1999
  • Est. Priority Date: 04/15/1996
  • Status: Expired due to Fees
First Claim
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1. A semiconductor memory device comprising:

  • a nonvolatile memory which is addressable by sectors;

    an interface for receiving an access request from a host computer system to access data from said nonvolatile memory;

    a volatile memory;

    means for creating a first table in response to an access request from said host computer system representing logical-to-physical address conversion information for a page having a plurality of sectors stored in said volatile memory for converting a logical sector address into a physical sector address;

    and means for creating a second table in response to an access request from said host computer system representing logical-to-physical address conversion information for a unit having a plurality of pages stored in said volatile memory for converting a logical page number into a physical page number.

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