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FLASH SUBSYSTEM ORGANIZED INTO PAIRS OF UPPER AND LOWER PAGE LOCATIONS

  • US 20150067449A1
  • Filed: 11/11/2014
  • Published: 03/05/2015
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A memory system comprising:

  • a flash subsystem organized into pairs of upper and lower page locations, an upper and lower page location pair for saving a page of data; and

    a flash controller coupled to the flash subsystem and responsive to a page of data made of a pair of upper page and lower page, the flash controller operable to generate split segments from the upper page and the lower page pair, the split segments each including split data, the flash controller further operable to compute redundancy associated with the split data and to program the split data of the upper page into an upper page location and a corresponding split data of the lower page into a lower page location, the flash controller further operable to program the computed redundancy into the upper page location or the lower page location.

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