Perfect 3-Limited-Weight Code for Low Power I/O

Abstract

Codes for low power I/O reduce the number of 1's transmitted over the bus at the expense of overhead (encoding and decoding) and an increase in the number of bus lines and/or bus cycles. We propose treating special cases of Limited-Weight Codes (LWC) as duals of block Error Corecting Codes (ECC). This enables the algoritlunic generation of a LWC based on its dual ECC and is a fundamentally novel way of encoding for low power I/O. We also propose a perfect 3-LWC as dual to the Golay binary ECC which shows good power savings for heavily loaded buses. © Springer-Verlag 2004 References.