POWER MANAGEMENT BASED ON SELF-SYNCHRONIZATION OF CLOCKS

A host and one or more devices can communicate with each other using signals that couple communication data with power. The host can transmit the coupled data and the other device can decouple the communication data from the power. Further, the receiving device can replicate the transmitted communication signal without digital signal processing. The host and the devices can communicate with each other using a data frame in which one of the devices initially generates a first portion of the data frame and transmits the first portion, and the other device subsequently generates and transmits a second portion of the data frame. The data frame may include one or more frame sync data used to calibrate and align clock signals from clock circuits. Systems and methods for identifying data when a system is unaware of the protocol are also shown.