Reduction of bus transitions with partial bus-invert coding

Abstract

The authors propose a partial bus-invert coding scheme that reduces the total number of bus transitions further than the conventional bus-invert coding. In the proposed scheme, only a selected subset of the bus lines is considered for the bus-invert coding. Experimental results show that the partial bus-invert coding reduces the number of total bus transitions by an average of 62.4%, compared to that without coding, and by an average of 39.2% compared to conventional bus-invert coding.