A new parameterizable power macro-model for datapath components

von Cölln (Jochens), Gerd and Kruse, Lars and Schmidt, Eike and Nebel, Wolfgang
We propose a novel power macro-model which is based on the Hamming-distance of two consecutive input vectors and additional information on the module structure. The model is parameterizable in terms of input bit-widths and can be applied to a wide variety of datapath components. The good trade-off between estimation accuracy, model complexity and flexibility makes the model attractive for power analysis and optimization tasks on a high level of abstraction. Furthermore, a new approach is presented, that allows to calculate the average Hamming-distance distribution of an input data stream. It will be demon-strated, that the application of Hamming-distance distri-butions, instead of only average values, improves the estimation accuracy for a number of typical DSP-modules and data streams.
01 / 1999
DATE 1999, Design, Automation and Test in Europe Conference and Exhibition. - Los Alamitos, Californien
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