A Fault-Tolerant Cache System of Automotive Vision Processor Complying With ISO26262

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With fluctuating voltage, widening operating temperature, and increasing clock frequency, cache systems are becoming increasingly susceptible to transient errors. Error correction code (ECC) is an attractive approach for transient error detection and correction. However, redundant memory for ECC has a significant impact on cost and increases the transient error rates. This brief presents a fault-tolerant cache system of automotive vision processors. The cache system has the small redundant memory and decreases the transient error rates with the proposed mechanism, which increases the error recovery rate and is considered with data cache characteristics. Also, the cache system is analyzed complying with ISO26262. As a result, thanks to 80% reduction of error traps caused by the cache system at the automotive vision processor’s variable fault-tolerant policy, compared to the cache system of the state-of-art vision processors for automotive.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2016-12
Language
English
Article Type
Article
Citation

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v.63, no.12, pp.1146 - 1150

ISSN
1549-7747
DOI
10.1109/TCSII.2016.2620997
URI
http://hdl.handle.net/10203/214383
Appears in Collection
EE-Journal Papers(저널논문)
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