A Bus Encoding Method for Crosstalk and Power Reduction in RC Coupled VLSI Interconnects

A Bus Encoding Method for Crosstalk and Power Reduction in RC Coupled VLSI Interconnects

S.K.Verma1 and B.K.Kaushik2

1Department of Computer Science and Engineering, G. B. Pant Engineering College, Pauri-Garhwal, INDIA

2Department of Electronics and Computer Engineering, Indian Institute of Technology, Roorkee, INDIA

ABSTRACT

The performance factors such as propagation delay, power dissipation and crosstalk in RC modelled interconnects are major design issues for the System on-chip (SoC) designs in current Deep Submicron (DSM) era. The crosstalk effect is a consequence of coupling and switching activities that is encountered when there is a transition as compared to previous state of wire and or when there are transitions in adjacent wires. Therefore, minimization or elimination of switching and coupling activities is crucial in enhancing the performance of SoC designs. There are several methods for the reduction of power dissipation, crosstalk and delay. The encoding method is most effective and popular method for enhancing the behaviour of on-chip buses. This paper proposes encoding scheme to achieve overall reduction in transitions. The reduction in transition improves the performance in terms of reduced power dissipation, coupling activity and delay in on-chip buses. This encoding method is implemented using VHDL. The result evidently demonstrates reduction in transitions which consequently improves the overall performance of on-chip buses.

Keywords

Coupling, VLSI, SoC, Bus Encoding, Interconnects 

Original Source Link : http://aircconline.com/vlsics/V3N2/3212vlsics03.pdf

http://airccse.org/journal/vlsi/vol3.html