Functional Analysis of Circuits Under Timing Variations

Conference: edaWorkshop 12 - Workshop 2012 - Electronic Design Automation (EDA)
05/08/2012 - 05/09/2012 at Hannover, Germany

Proceedings: edaWorkshop 12

Pages: 6Language: englishTyp: PDF

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Mehdi, Dehbashi (Institute of Computer Science, University of Bremen, 28359 Bremen, Germany)
Görschwin, Fey (Institute of Space Systems, German Aerospace Center, 28359 Bremen, Germany)
Kaushik, Roy; Anand, Raghunathan (School of Electrical and Computer Eng., Purdue University, West Lafayette, IN)

This paper presents a methodology to model and analyze the functional behavior of logic circuits under timing variations. In the framework, first a Time Accurate Model (TAM) of the circuit is constructed. The TAMrepresents the behavior of the circuit in the functional domain under a discrete time model. Afterwards, Variation Logic is inserted to apply the timing variation delays. Moreover, the circuit TAM is enhanced by Time Control (TC) logic to model the circuit frequency.We apply the proposed methodology to analyze a circuit or an approximated circuit under timing variations as well as to analyze a circuit under timing-induced errors for approximate computing.