Optimal memoryless encoding for low power off-chip data buses

Yeow Meng Chee, Charles J. Colbourn, Alan C. H. Ling
2006 Computer-Aided Design (ICCAD), IEEE International Conference on  
Off-chip buses account for a significant portion of the total system power consumed in embedded systems. Bus encoding schemes have been proposed to minimize power dissipation, but none has been demonstrated to be optimal with respect to any measure. In this paper, we give the first provably optimal and explicit (polynomial-time constructible) families of memoryless codes for minimizing bit transitions in off-chip buses. Our results imply that having access to a clock does not make a memoryless
more » ... ncoding scheme that minimizes bit transitions more powerful.
doi:10.1145/1233501.1233575 dblp:conf/iccad/CheeCL06 fatcat:5o3taqgqpffqjgcibqjrccybzq