Partial triplication of a SPARC-V8 microprocessor using fault injection

Partial triplication of a SPARC-V8 microprocessor using fault injection

We present in this paper the application of fault injection to selective hardening by triplication of a pipelined SPARC-V8 microprocessor. Fault injection is applied to identify the most sensitive flip-flops to single-event-upset and stuck-at faults of the design. The most sensitive flip-flops are r...

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Bibliographic Details
Published in:2015 IEEE 6th Latin American Symposium on Circuits & Systems (LASCAS) pp. 1 - 4
Main Authors: Bottoni, Cyril, Coeffic, Benjamin, Daveau, Jean-Marc, Naviner, Lirida, Roche, Philippe
Format: Conference Proceeding
Language:English
Published: IEEE 01-02-2015
Subjects:
Circuit faults
Logic gates
Microprocessors
Registers
Reliability
Sensitivity
Tunneling magnetoresistance
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Summary:We present in this paper the application of fault injection to selective hardening by triplication of a pipelined SPARC-V8 microprocessor. Fault injection is applied to identify the most sensitive flip-flops to single-event-upset and stuck-at faults of the design. The most sensitive flip-flops are replaced by triplicated ones during the physical implementation of the design. Selective triplication is applied to about 26% of the flip-flops of the design allowing to gain additional reliability with a low overhead and delay penalty.
DOI:10.1109/LASCAS.2015.7250415