Fast correction of multiple soft errors in highly associative cache with CAM-based tag

Hyuk Jun Lee, Seung Cheol Kim, Eui Young Chung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Content addressable memory (CAM) is a key component to build the tag memory of a highly associative cache. As CMOS process technology scales,soft error rates (SER) in CAM cells increase significantly. Bit flipping in CAM cell leads to a false miss upon a cache access, which could be fatal from a system point of view. Previous schemes either focused on reducing the probability of soft errors or had an unbounded single soft error correction time. Compared with previous schemes, our approach completely detects and corrects multiple soft errors. The detection and correction in our scheme happens as a background process, does not interfere with concurrent cache accesses, and does not affect the performance of time-critical cache operations. In addition, we enhance the cache miss holding register structure of a non-blocking cache to avoid data corruption due to any false cache miss happening between occurrence and correction of errors.

Original languageEnglish
Title of host publicationComputer Applications for Security, Control and System Engineering - International Conferences, SecTech, CA, CES3 2012, Held in Conjunction with GST 2012, Proceedings
Pages424-431
Number of pages8
DOIs
Publication statusPublished - 2012
Event2012 Int. Conf. on SecTech 2012, 2012 Int. Conf. on Control and Automation, CA 2012 and the 2012 Int. Conf. on Circuits, Control, Communication, Electricity, Electronics, Energy, System, Signal and Simulation, Held in Conjunction with GST 2012 - Jeju Island, Korea, Republic of
Duration: 2012 Nov 282012 Dec 2

Publication series

NameCommunications in Computer and Information Science
Volume339 CCIS
ISSN (Print)1865-0929

Other

Other2012 Int. Conf. on SecTech 2012, 2012 Int. Conf. on Control and Automation, CA 2012 and the 2012 Int. Conf. on Circuits, Control, Communication, Electricity, Electronics, Energy, System, Signal and Simulation, Held in Conjunction with GST 2012
CountryKorea, Republic of
CityJeju Island
Period12/11/2812/12/2

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Mathematics(all)

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