Calculation methods of new circuit activity measure for low power modeling

Calculation procedures for the gate driving way probability - the new measure of a circuit activity, developed for low power modeling - are presented in this paper. The new model of power dissipation, using the measure, has improved estimation accuracy. Moreover, it allows developing of new methods for low power design. The gate driving way can be easy calculated using logic simulations, but it is time-consuming method. So, the authors propose efficient and fast calculation procedures. The versatile algorithm for any circuit has been developed as well as very fast one for two-level circuits only. Results of new algorithms using were compared for a set of MCNC benchmark circuits.