OPERATING A MEMORY UNIT
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United States of America Patent
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Issued Date -
May 26, 2016
app pub date -
Jul 31, 2013
filing date -
Jul 31, 2013
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Abstract
A method for operating a memory unit is disclosed. The method includes encoding data from a cache line divided in a plurality of groups and generating a plurality of codewords. The method further includes storing the LED data for the cache line combined with the data of the cache line retrieved from a first portion of the codewords across a plurality of chips in the memory unit to create a first tier of protection. The method also includes storing the GEC data for the cache line retrieved from a second portion of the codewords across the plurality of chips to create a second tier of protection for the cache line. The method also includes receiving information corresponding to the first tier of protection, determining whether an error exists in the data of the cache line, decoding the data of the cache line, and outputting the data of the cache line at the controller.
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