Title
Runtime slack-deficit detection for a low-voltage DCT circuit
Abstract
We present a deployment strategy for Error (slack-deficit) Detection Sequential (EDS) circuits to monitor non-critical paths of application systems at the clock falling edges, requiring neither buffer insertions nor extra clocks. The proposed strategy is applied to an FPGA-based Discrete Cosine Transform (DCT) unit together with EDS and Dynamic Voltage Scaling (DVS) circuits as a proof of concept. It is able to speculatively and accurately detect slack-deficits due to dynamic process, voltage and temperature (PVT) variations and correspondingly adjust the supply voltage. When processing realistic input data and operating at the same frequency as a highly-optimized baseline DCT implementation, our design produces equivalent outputs and incurs a 0.3% logic element overhead and 3.5% maximum frequency degradation, but saves up to 16.5% energy.
Year
DOI
Venue
2015
10.1109/MWSCAS.2015.7282186
Midwest Symposium on Circuits and Systems Conference Proceedings
Keywords
Field
DocType
radiation detectors,field programmable gate arrays
Dynamic voltage scaling,Particle detector,Computer science,Discrete cosine transform,Voltage,Field-programmable gate array,Electronic engineering,Proof of concept,Low voltage,Electronic circuit
Conference
ISSN
Citations 
PageRank 
1548-3746
0
0.34
References 
Authors
6
4
Name
Order
Citations
PageRank
Yaoqiang Li111.05
Pierce I.-Jen Chuang211.38
Andrew A. Kennings318618.56
Manoj Sachdev466988.45