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Non-volatile memory control

  • US 7,215,580 B2
  • Filed: 06/14/2004
  • Issued: 05/08/2007
  • Est. Priority Date: 09/28/2001
  • Status: Active Grant
First Claim
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1. A method for use in a memory system having a non-volatile memory and a controller for limiting the number of non-volatile memory arrays, within the non-volatile memory, from a plurality of available arrays accessed at one time, the method comprising:

  • implementing a pipelining sequence for transferring data to and from the non-volatile memory arrays;

    before accessing any array, checking the number of currently active arrays against an allowed limit; and

    waiting for the at least one of the arrays to complete before initiating the transfer to and from a further array,thereby controlling flash memory accesses in a memory system configured to use concurrent operation in different flash memory arrays and allowing performance to be changed easily in systems supporting concurrent flash operations in different Flash arrays.

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