Bus data encoding with coupling-driven adaptive code-book method for low power data transmission

Reducing bus power dissipation has become one of key issues for low power System on a Chip (SoC) design. In this paper we have proposed bus data encoding schemes, which reduce coupling signal transitions of bus lines along with self signal transitions, based on adaptive code-book method. Experimental results show that proposed encoding schemes reduce effective signal transitions related to power dissipation as much as 25-50% in a 16-bit bus, which indicate the proposed scheme is suitable for IPs in future SoC designs.