Efficient estimation of dynamic power consumption under a real delay model

Abstract

In CMOS circuits, glitches account for a sizable part of the total power consumption. In this paper, we present a fast and memory efficient power estimation technique for cmos circuits which estimates the power consumed due to the glitches. Our technique is based on the notion of tagged transition waveforms. In particular, we approximate the correlation between transition waveforms for two signal lines by the correlation between the steady state values of these lines. We obtain an order of magnitude speed up over an exact method with an average error of only 1%. 1 Introduction With recent advances in microelectronic technology, smaller devices are now possible allowing more functionality on an integrated circuit (ic). Portable applications have shifted from conventional low performance products such as wristwatches and calculators to high throughput and computationally intensive products such as notebook computers and personal digital assistants. The new applications require high spe...