Accurate estimation of combinational circuit activity
Huzefa Mehta, Manjit Borah, Robert Michael Owens, M.J. Irwin · 1995
Several techniques to estimate power consumption o f a combinational circuit using probabilistic methods have been proposed.However none of these techniques take i n to account circuit activity when two o r more inputs change simultaneously or when glitching occurs.A formulation is presented in this paper which includes signal correlation and multiple gate input switching.Work is also presented in estimating the glitching contribution to the switching activity.Results obtained from benchmarks and test circuits show v ery good accuracy when compared to actual activities as measured by SPICE and IRSIM.