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Methods of operating a memory system that include outputting a data pattern from a sector allocation table to a host if a logical sector is indicated as being erased

  • US 9,032,134 B2
  • Filed: 03/12/2012
  • Issued: 05/12/2015
  • Est. Priority Date: 09/28/2001
  • Status: Active Grant
First Claim
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1. A method of operating a memory system, comprising:

  • receiving a read command from a host, wherein the read command is associated with a logical sector of a memory;

    determining whether the logical sector of the memory is indicated as being erased in a sector allocation table; and

    when the logical sector of the memory is indicated as being erased, generating a sector of data from a data pattern in the sector allocation table and outputting the generated sector of data to the host;

    wherein the generated sector of data is an original sector of data intended to be written to the logical sector of the memory in response to a write command and the data pattern is a portion of the original sector of data.

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