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MEMORY SYSTEM AND METHOD OF CONTROLLING MEMORY SYSTEM

  • US 20150331625A1
  • Filed: 08/21/2014
  • Published: 11/19/2015
  • Est. Priority Date: 05/16/2014
  • Status: Active Grant
First Claim
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1. A memory system comprising:

  • a nonvolatile memory including a plurality of blocks, each of the blocks including a plurality of word lines, each of the word lines including a plurality of memory cells, the plurality of memory cells having a storage capacity for one or more pages; and

    a controller controlling the nonvolatile memory, whereinthe controller is configured to cyclically execute patrol read, the patrol read including reading data and testing the read data, the read data being data of pages connected to some of the word lines in each of the blocks.

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