According to some embodiments, a method and system are provided to initiate communication at an integrated circuit that is electrically coupled to a plurality of voltage regulators, determine a slowest one of the plurality of voltage regulators that is electrically coupled to the processor, transmit address information to the plurality of voltage regulators that are electrically coupled to the processor at a first speed associated with the slowest one of the plurality of voltage regulators, determine a second speed associated with a voltage regulator to which the address information is associated, and transmit a second portion of the packet at the second speed associated with the voltage regulator to which the address information is associated.