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Soft error mitigation in cache memories of embedded systems by means of a protected scheme

Zarandi, H. R ; Sharif University of Technology | 2005

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  1. Type of Document: Article
  2. DOI: 10.1007/11572329_11
  3. Publisher: 2005
  4. Abstract:
  5. The size and speed of SRAM caches of embedded systems are increasing in response to demands for higher performance. However, the SRAM caches are vulnerable to soft errors originated from energetic nuclear particles or electrical sources. This paper proposes a new protected cache scheme, which provides high performance as well as high fault detection coverage. In this scheme, the cache space is divided into sets of different sizes. Here, the length of tag fields associated to each set is unique and is different from the other sets. The other remained bits of tags are used for protecting the tag using a fault detection scheme e.g., generalized parity. This leads to protect the cache without compromising performance and area with respect to the similar one, fully associative cache. The results obtained from simulating some standard trace files reveal that the proposed scheme exhibits a performance near to fully associative cache but achieves a considerable fault detection coverage which is suitable to be used in the dependable computing. © Springer-Verlag Berlin Heidelberg 2005
  6. Keywords:
  7. Electrical sources ; Energetic nuclear particles ; Error mitigation ; Fault detection ; Computer simulation ; Elementary particles ; Embedded systems ; Error analysis ; Fault tolerant computer systems ; Static random access storage ; Buffer storage
  8. Source: 2nd Latin-American Symposium on Dependable Computing, LADC 2005, Salvador, 25 October 2005 through 28 October 2005 ; Volume 3747 LNCS , 2005 , Pages 121-130 ; 03029743 (ISSN); 3540295720 (ISBN); 9783540295723 (ISBN)
  9. URL: https://link.springer.com/chapter/10.1007/11572329_11