Publication Type:

Conference Proceedings


2012 3rd International Conference on Computing, Communication and Networking Technologies, ICCCNT 2012, Coimbatore, Tamilnadu (2012)

Accession Number:




Communication, Electric power supplies to apparatus, Embedded systems, Estimation, FPGA circuits, Gate delays, Large circuits, Logic synthesis, Look up table, Loss of accuracy, Low power chip, Low power electronics, Low-power design, Power estimations, Power modeling, Probabilistic approaches, Probabilistic methods, Rate estimation, Spatial correlations, Statistical parameters, Technical needs, Time simulations, toggle rate, Topological order, vectorless


The interest in low power chips and systems are driven by both business and technical needs. Since power estimation is the foremost step in any low power design, this work concentrates on developing a technique that estimates the toggle rates for circuits implemented on a 4 input LUT based FPGA. Basically there are two methods of power estimation namely simulation based and probabilistic approach. Simulation based approach is more accurate that the later, but this method is computationally very expensive, practically impossible for large circuits. So, probabilistic method is a solution for this problem. They require only one time simulation and hence they are faster. This advantage is available at the cost of loss of accuracy. So this work focuses on improving the accuracy of probabilistic approach by incorporating more statistical parameters related to toggle rate estimation. This approach is tested on a set of MCNC circuits. The ABC logic synthesis system is used for LUT mapping. This method does a power modeling of FPGA circuits under spatial correlation by computing the transitions at each LUT by processing them in topological order. Gate Delays are also considered in this approach. © 2012 IEEE.


cited By (since 1996)0; Conference of org.apache.xalan.xsltc.dom.DOMAdapter@42e59cee ; Conference Date: org.apache.xalan.xsltc.dom.DOMAdapter@70a1ef91 Through org.apache.xalan.xsltc.dom.DOMAdapter@1777525c; Conference Code:95198

Cite this Research Publication

P. Ja Anju and Ramesh S. R., “Toggle rate estimation technique for FPGA circuits considering spatial correlation”, 2012 3rd International Conference on Computing, Communication and Networking Technologies, ICCCNT 2012. Coimbatore, Tamilnadu, 2012.