Since the activity is directly proportional to the Hamming distance, bus encoding proves to be effective in reducing the overall activity factor thereby reducing the dynamic power consumption in the system.
In the context of this article, a system can refer to anything where data is transferred from one element to another over bus (viz.
Power consumption in electronic systems is a matter of concern today for the below reasons: The dynamic power dissipated by an electronic circuit is directly proportional to the activity factor and the load capacitance as seen by the output of the logic gate.
Due to higher value of load capacitance and activity factor, in a typical system, bus power consumption can contribute up to 50% of the total power consumption.
On board, a small low power IC can be deployed in between the master and slave modules on the bus to implement the encoding and decoding functions.