Error-correction coding in CMOS RAM resistant to the effect of single nuclear particles

Error-correction coding in CMOS RAM resistant to the effect of single nuclear particles Coders/decoders that are used in RAM to enhance the data storage reliability on exposure to single nuclear particles are analyzed. If the numbers of check bits are equal, a Hsiao decoder has a lower signal propagation delay than a decoder of the modified Hamming code. A decoder of the extended Hsiao code with additional check bits has the lowest delay among all decoders. When Hsiao decoders with units with a truncated correction circuit, a symmetrically simplified circuit for error vector calculation, and a circuit forming the error signal without the use of the error vector are used in RAM, the critical path lengths and the occupied chip area may be reduced if the detection of triple errors is excluded. The equal efficiency of Richter decoders and coders/decoders obtained through optimization based on genetic algorithms is substantiated for SEC-DAEC codes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Microelectronics Springer Journals

Error-correction coding in CMOS RAM resistant to the effect of single nuclear particles

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Publisher
Pleiades Publishing
Copyright
Copyright © 2015 by Pleiades Publishing, Ltd.
Subject
Engineering; Electrical Engineering
ISSN
1063-7397
eISSN
1608-3415
D.O.I.
10.1134/S1063739715050091
Publisher site
See Article on Publisher Site

Abstract

Coders/decoders that are used in RAM to enhance the data storage reliability on exposure to single nuclear particles are analyzed. If the numbers of check bits are equal, a Hsiao decoder has a lower signal propagation delay than a decoder of the modified Hamming code. A decoder of the extended Hsiao code with additional check bits has the lowest delay among all decoders. When Hsiao decoders with units with a truncated correction circuit, a symmetrically simplified circuit for error vector calculation, and a circuit forming the error signal without the use of the error vector are used in RAM, the critical path lengths and the occupied chip area may be reduced if the detection of triple errors is excluded. The equal efficiency of Richter decoders and coders/decoders obtained through optimization based on genetic algorithms is substantiated for SEC-DAEC codes.

Journal

Russian MicroelectronicsSpringer Journals

Published: Sep 2, 2015

References

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