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METHODS AND DEVICES FOR AVOIDING LOWER PAGE CORRUPTION IN DATA STORAGE DEVICES

  • US 20140133220A1
  • Filed: 11/13/2012
  • Published: 05/15/2014
  • Est. Priority Date: 11/13/2012
  • Status: Active Grant
First Claim
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1. A data storage device, comprising:

  • a plurality of Multi-Level Cell (MLC) non-volatile memory devices comprising a plurality of lower pages and a corresponding plurality of higher-order pages;

    a controller coupled to the plurality of MLC non-volatile memory devices and configured to write data to and read data from the plurality of lower pages and the corresponding plurality of higher-order pages; and

    a buffer coupled to the controller;

    wherein the controller is configured to;

    accumulate data to be written to the MLC non-volatile memory devices;

    allocate space in the buffer and write the accumulated data to the allocated space in the buffer;

    write at least a portion of the accumulated data in a lower page of the MLC non-volatile memory devices; and

    de-allocate space in the buffer that stores data written to the lower page when all higher-order pages corresponding to the lower page have been written in the MLC non-volatile memory devices.

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