Title
On the Effects of Permanent Faults in QDI Circuits - A Quantitative Perspective
Abstract
With their event-driven nature, quasi-delay-insensitive (QDI) asynchronous circuits offer a compelling fail-stop behavior along with an inherent 100 % permanent fault detection coverage. In fact, permanent faults break the handshake, pushing the circuit into deadlock. In this paper we give quantitative results for the relative occurrence of the different effects that can manifest in a QDI circuit due to permanent faults. We study in which and how many cases the state of the circuit gets corrupted before reaching the deadlock. This behavior diagnosis enables us to identify the cases in which the circuit can go back to operating normally if a (self-) repair process were to take place. This investigation is conducted through extensive fault injection experiments in a chosen circuit simulation. Stuck-at faults are injected on a gate-level VHDL model of the circuit, with a wide coverage of parameters.
Year
DOI
Venue
2020
10.1109/ICCD50377.2020.00080
2020 IEEE 38th International Conference on Computer Design (ICCD)
Keywords
DocType
ISSN
permanent faults,QDI circuits,fault injection
Conference
1063-6404
ISBN
Citations 
PageRank 
978-1-7281-9711-1
0
0.34
References 
Authors
7
2
Name
Order
Citations
PageRank
Raghda El Shehaby100.68
Andreas Steininger201.01