Abstract
This paper presents an extended high-level model for logic power estimation of multipliers and adders implemented in FPGAs in the presence of glitching and correlation. The model is based on an analytical computation of the switching activity produced in the component and the FPGA implementation details of the component structure. It is extended to consider operands of different word-lengths, both zero-mean and non-zero mean signals, and the glitching produced inside the component, taking into account the sign nature of the autocorrelation coefficients of the components’ inputs. The number of simulations needed for the model characterization is extremely small and can be reduced to only two. As the final power model is analytical, it is capable of providing power estimates in miliseconds. The results show that the mean relative error is within 10% of low-level power estimates given by the XPower tool.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Clarke, J.A., Gaffar, A.A., Constantinides, G.A., Cheung, P.Y.K.: Fast word-level power models for synthesis of FPGA-based arithmetic. In: Proc. ISCAS, pp. 1299–1302 (2006)
Gupta, S., Najm, F.N.: Power Modeling for High Level Power Estimation. IEEE Trans. VLSI Syst. 8, 18–29 (2000)
Helms, D., Schmidt, E., Schulz, A., Stammermann, A., Nebel, W.: An improved power macro-model for arithmetic datapath components. In: Hochet, B., Acosta, A.J., Bellido, M.J. (eds.) PATMOS 2002. LNCS, vol. 2451, pp. 16–24. Springer, Heidelberg (2002)
Jochens, G., Kruse, L., Schmidt, E., Nebel, W.: A New Parameterizable Power Macro-Model for Datapath Components. In: DATE 1999, pp. 29–36 (1999)
Jevtic, R., Carreras, C., Caffarena, G.: Switching activity models for power estimation in FPGA multipliers. In: Diniz, P.C., Marques, E., Bertels, K., Fernandes, M.M., Cardoso, J.M.P. (eds.) ARC 2007. LNCS, vol. 4419, pp. 201–213. Springer, Heidelberg (2007)
Landman, P., Rabaey, J.: Architectural Power Analysis: The dual bit type method. IEEE Trans. On VLSI Systems 3(2), 173–187 (1995)
Ramprasad, S., Shanbhag, N.R., Hajj, I.N.: Analytical Estimation of Signal Transition Activity from Word-Level Statistics. IEEE Trans. On Computer-Aided Design of Integrated Circuits and Systems 16(7), 718–733 (1997)
Shang, L., Jha, N.K.: High-level Power Modeling of CPLDs and FPGAs. In: Proc. of the Int. Conf. on Comp. Design, pp. 46–53. IEEE Computer Society, Los Alamitos (2001)
Xilinx Inc., http://www.xilinx.com
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Jevtic, R., Carreras, C. (2009). Analytical High-Level Power Model for LUT-Based Components. In: Svensson, L., Monteiro, J. (eds) Integrated Circuit and System Design. Power and Timing Modeling, Optimization and Simulation. PATMOS 2008. Lecture Notes in Computer Science, vol 5349. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-95948-9_37
Download citation
DOI: https://doi.org/10.1007/978-3-540-95948-9_37
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-95947-2
Online ISBN: 978-3-540-95948-9
eBook Packages: Computer ScienceComputer Science (R0)