LOW POWER SERIAL COMMUNICATION WITH MODIFIED DUTY CYCLE OF THE DATA LINE

摘要

Disclosed is a low power serial communication with modified duty cycle of the data line is disclosed. A novel communication method for devices with internal pull-up resistors is disclosed. The data transmitted during the communication is transmitted with a set duty cycle. The duty cycle value could be varied based on requirements of current consumption and data being transmitted. Hence according to the capacities and clock frequencies on which both the communicating devices work the duty cycle can be varied. The present invention provides that with 30% duty cycle, there is a reduced current consumption during 70% of bit time period. Hence a substantial amount of power is saved. Especially in cases where there are large number of logic ‘0’ to be transmitted, this method saves power which can be really useful in power critical application like battery operated devices.