Blade - A Timing Violation Resilient Asynchronous Design Template

This paper proposes a novel asynchronous design template, Blade, that uses single-rail logic , a reconfigurable delay line, and error detecting latc hes to reliably detect and recover from timing violations due to pr ocess variations and delay faults of single event upsets. The template employs a novel speculative handshaking paradigm th at improves average-case performance by taking advanta ge of the fact that errors occur with low probability. We wi ll analytically compares the performance of this templ ate with both traditional synchronous designs and the stateofhe-art synchronous resiliency strategy Bubble Razor. Our r esults demonstrate the potential benefit of our approach a s well as provide insight into how asynchronous designs shoul d be optimized to achieve these benefits. Keywords—Resilient design, variability, performance an alysis.