DIFFERENTIAL SIGNALING USING A COMMON MODE VOLTAGE MODULATION COMMON MODE DETECTION

摘要

In some embodiments, a chip includes: transmitters configured to transmit differential signals on conductors, wherein the conductors include first and second pairs of conductors, and the differential signals include first differential signals to be transmitted to the first pair of conductors and second differential signals to be transmitted to the second pair of conductors; current mode circuitry configured to selectively modulate a common mode voltage of the differential signals to communicate data; and common mode detection circuitry configured to detect changes in the common mode voltage. Furthermore, another chip includes: receivers configured to receive differential signals on conductors, wherein the conductors include first and second pairs of conductors, and the differential signals include first differential signals to be received by the first pair of conductors and second differential signals to be received by the second pair of conductors; current mode circuitry configured to selectively modulate a common mode voltage of the differential signals to communicate data; and common mode detection circuitry configured to detect changes in the common mode voltage.