A method and system for operating a communication circuit during periods of reduced energy consumption are disclosed. Data may be transmitted over a communication link from a first device to a second device in a low-power state. The data may be used by the second device to update coefficients and/or synchronize the receiver of the second device to a transmitter of the first device, thereby enabling a more efficient or rapid transition from the low-power state to an active state. A transmitter of the first device and a receiver of the second device may be activated before transmission of the data and deactivated after transmission of the data. In this manner, a receiver of the second device may be refreshed to enable a more efficient transition from the low-power state to an active state.