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A Dynamic Continuous Signature Monitoring Technique for Reliable Microprocessors
Makoto SUGIHARA
Publication
IEICE TRANSACTIONS on Electronics
Vol.E94-C
No.4
pp.477-486
Publication Date: 2011/04/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E94.C.477
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Circuits and Design Techniques for Advanced Large Scale Integration)
Category:
Keyword:
soft error, NBTI, SEU, SET, control signal error, continuous signature monitoring, reliability, vulnerability, microprocessor,
Full Text: PDF>>
Summary:
Reliability issues such as a soft error and NBTI (negative bias temperature instability) have become a matter of concern as integrated circuits continue to shrink. It is getting more and more important to take reliability requirements into account even for consumer products. This paper presents a dynamic continuous signature monitoring (DCSM) technique for high reliable computer systems. The DCSM technique dynamically generates reference signatures as well as runtime ones during executing a program. The DCSM technique stores the generated signatures in a signature table, which is a small storage circuit in a microprocessor, unlike the conventional static continuous signature monitoring techniques and contributes to saving program or data memory space that stores the signatures. Our experiments showed that our DCSM technique protected 1.4-100.0% of executed instructions depending on the size of signature tables.
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