ADAPTATION TO 3-PHASE SIGNAL SWAP WITHIN A TRIO

摘要

Systems, methods and apparatus are described that facilitate transmission of data, particularly between two devices within an electronic apparatus. Two Integrated Circuit (IC) devices may be collocated in an electronic apparatus and communicatively coupled through a 3-wire, 3-phase interface. A data transfer method operational on a first of the two or more devices includes determining presence of a misalignment of the 3-wire communication link involving two or more wires, and inverting a first bit of a 3-bit symbol encoded in a transition of signaling state of the 3-wire communication link when the misalignment of the 3-wire communication link is determined to affect phase relationships between two or more signals carried on the three wires, such that inverting the first bit corrects the phase relationships between the two or more signals. A version of the 3-phase signal may be communicated in a different phase state through each of three wires.

主权项

1. A data transfer method operational on a device configured for communicating using a 3-phase signal transmitted over a 3-wire communication link, comprising:
determining presence of a misalignment of the 3-wire communication link involving two or more wires, wherein the 3-phase signal must be transmitted on all wires of the 3-wire communication link in different phases; and inverting a first bit of a 3-bit symbol corresponding to a transition of signaling state of the 3-wire communication link when the misalignment of the 3-wire communication link is determined to affect phase relationships between two or more signals carried on the 3-wire communication link, wherein inverting the first bit reverses an effect of the misalignment of the 3-wire communication link, and wherein the 3-bit symbol includes bits representative of whether there is a flip, a rotation or a polarity change in the 3-phase signal transmitted in a current symbol transmission interval with respect to an immediately preceding symbol transmission interval.