System Level Power Estimation Methodology with H.264 Decoder Prediction IP Case Study

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Provided by: Colorado State University
Topic: Hardware
Format: PDF
In this paper, the authors present a methodology to generate a hierarchy of power models for power estimation of custom hardware IP blocks, enabling a trade-off between power estimation accuracy, modeling effort and estimation speed. Their power estimation approach enables several novel system-level explorations - such as observing the effect of clock gating, and the effects of tweaking application-level parameters on system power - with an estimation accuracy that is close to the gate-level. They implemented their methodology on an H.264 video decoder prediction IP case study, created power models, and evaluated the effects of varying design parameters (e.g., clock gating, I/P frame ratios, Quantization), allowing rapid system-level power exploration of these design parameters.
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