A method of changing an operating performance point of an integrated circuit including detecting a need to change the operating performance point of the integrated circuit to a new operating performance point. The method also includes changing a voltage of the integrated circuit to correspond with the new operating performance point, changing a maximal receiver clock frequency value to correspond with the new operating performance point, exporting the maximal receiver clock frequency value to a distant integrated circuit, and receiving an acknowledgement of the changed maximal receiver clock frequency value from the distant integrated circuit.