Memory controller
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United States of America Patent
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Nov 14, 2017
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app pub date -
Sep 5, 2014
filing date -
Jun 13, 2011
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Abstract
An ECC circuit can operate in a plurality of error correction modes with different correcting capabilities for data stored in a memory. The ECC circuit calculates a syndrome with respect to information data in accordance with an error correction mode set by a control part and adds a syndrome of a fixed length in which dummy bits are added to the calculated syndrome, to the information data. When code data is read out, the ECC circuit performs a correction process on the code data by using the syndrome included in the code data.
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