Devices and methods for providing concurrent superspeed communication and four-lane displayport communication via a USB type-C receptacle
In some embodiments, the present disclosure provides techniques for concurrently exchanging USB 2.0 information, SuperSpeed information, and four lanes of DisplayPort information via a single USB Type-C connection. In some embodiments, this may be accomplished in part by multiplexing signals such as the USB 2.0 signals and the DisplayPort AUX signal to fewer than a standard number of conductors in order to free up other conductors for the third and fourth lanes of DisplayPort information. In some embodiments, a standard USB Type-C receptacle, plug, and cable are used. In some embodiments, a modified receptacle, plug, and/or cable are provided.
1. A cable, comprising:
a plug having pins compliant with a USB Type-C plug standard; and
wires compliant with a USB Type-C wiring standard except for the side band use (SBU) wires;
wherein the SBU wires are configured to carry a DisplayPort main link lane signal or a combined USB 2.0 and DisplayPort AUX signal.
2. The cable of claim 1 , wherein the SBU wires are replaced with a shielded differential pair.
3. The cable of claim 1 , wherein the SBU wires are replaced with an unshielded twisted pair.
4. The cable of claim 1 , wherein the SBU wires are replaced with wires having a wire gauge between 26-30 AWG.
5. A cable comprising:
at least one plug and a plurality of wires;
wherein the at least one plug has a shape configured to mate with a USB Type-C receptacle;
wherein the at least one plug includes twenty-four pins configured to mate with twenty-four corresponding pins of the USB Type-C receptacle;
wherein the twenty-four pins of the at least one plug include:
twenty-two pins compliant with a USB Type-C plug standard, wherein the twenty-two pins include a first pair of USB 2.0 pins; and
two pins that are not compliant with the USB Type-C plug standard, wherein the two pins include a second pair of USB 2.0 pins that are electrically separated from the first pair of USB 2.0 pins; and
wherein the first pair of USB 2.0 pins are configured to carry a first data signal while the second pair of USB 2.0 pins concurrently carry a second data signal.
6. The cable of claim 5 , wherein SBU wires of the plurality of wires do not comply with the USB Type-C wiring standard.
7. The cable of claim 6 , wherein the SBU wires are a shielded differential pair.
8. The cable of claim 6 , wherein the SBU wires are an unshielded twisted pair.
9. The cable of claim 6 , wherein the SBU wires are wires having a wire gauge of 26-30 AWG.
10. The cable of claim 6 , wherein the SBU wires are configured to carry a DisplayPort lane signal or a combined USB 2.0 and DisplayPort AUX signal.
11. The cable of claim 5 , wherein the plurality of wires are compliant with a USB Type-C wiring standard except for an extra twisted pair of wires coupled to the second pair of USB 2.0 pins.
12. The cable of claim 5 , wherein the first data signal is a first DisplayPort lane and the second data signal is a second DisplayPort lane.