Noise analysis of on-chip flexing crossbars with a geometric model

Abstract

Recently, a new family of sparse crossbar switches, called flexing crossbars were introduced in [1] for on-chip networking. This paper describes a geometric approach that incorporates victim-aggressor noise models into the noise analysis and layout of such networks to minimize the crosstalk noise caused by the proximity of crosspoints and wires. It has been shown that flexing crossbars have less crosstalk noise than ordinary crossbars. The approach is sufficiently general enough to be applicable to other switching fabrics in which capacitive wire coupling effects dominate other noise factors.