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Method and apparatus for automatically scrubbing ECC errors in memory via hardware

  • US 6,101,614 A
  • Filed: 10/21/1997
  • Issued: 08/08/2000
  • Est. Priority Date: 05/24/1994
  • Status: Expired due to Term
First Claim
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1. In a memory controller, a method comprising:

  • reading data from an address in memory indicated by a memory read request that is queued in a request queue of a memory controller;

    detecting that the data has a correctable error;

    tagging the memory read request in the request queue to indicate that the data has a correctable error;

    correcting the correctable error in the data to generate corrected data; and

    writing the corrected data back to the address in memory indicated by the tagged memory read request before retiring the tagged memory read request from the request queue.

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