Incorporation of input glitches into power macromodeling

Previous research on power macromodeling has always assumed glitch-free input signals. However, in an actual operating environment, the input signals of a circuit can contain glitches, which are generated by the previous stage of circuitry. In this paper, we investigate the impact of input glitches on the power dissipation of a circuit. Specifically, we show that the frequency and average duration of input glitches are two important factors affecting the overall power consumption. Input glitches can also increase output glitching by a surprisingly large amount. We present a simple yet effective analytical power macromodeling approach incorporating the effects of input glitching. In experiments with the ISCAS-85 benchmark circuits, the average error of the proposed technique is 4.44%.

• Type: Conference
• Year: 2002
• Where: ISCAS
• Authors: Xun Liu, Marios C. Papaefthymiou
• Keywords: Hardware, Input, Input Glitches, Input Signals, ISCAS 2002