Crosstalk energy reduction by temporal shielding

This work proposes a novel approach to reduce coupling energy in a data bus, while guaranteeing complete elimination of crosstalk. The proposed solution is based on exploiting the redundancy introduced for implementing the shielding of bus lines, to realize a time-multiplexed scheme in which two data words are sent on the bus simultaneously. Results on a set of typical data sequences show energy savings of over 18% (on average) with respect to the original bus structure, and of over 17% (on average) with respect to a conventional shielding solution.