Correcting data in a memory

摘要

Methods of correcting data in a memory, and memories adapted to correct data, include prioritizing error correction of the read data in response to locations and likely states of known bad or questionable data positions of a segment of a memory array selected for reading.

主权项

1. A memory comprising:
a memory array containing a plurality of memory cells arranged into a plurality of segments; and a record of locations and likely states of known bad or questionable data positions in the plurality of segments; wherein the memory is adapted to read data and associated ECC codes from a selected segment of the memory array, and to error check the read data utilizing the associated ECC codes; and wherein the memory is adapted, when the error check detects an error in the read data, to prioritize error correction of the read data in response to the locations and likely states of the known bad or questionable data positions of the selected segment.