Abstract: A receiver receives data using a restricted transition 2-out-of-4 encoding protocol that prohibits a transition from one encoding back to the same encoding, thereby ensuring that at least two signals change every transition. One encoding is assigned a meaning of “repeat”, thereby ensuring that it is possible to transmit the same value repeatedly, and another encoding is assigned a meaning of “invert”, thereby ensuring that is possible to transmit complement values repeatedly. The receiver driver includes a link differential receiver, a link receiver detector, a link receiver clock recovery unit, a link receiver valid data extender, and a link receiver decoder. A pair of signals carrying data encoded with the protocol are provided to the link differential receiver, which in turn asserts exactly one of six encoding signals that are provided to the link receiver detector.