| 摘要 |
Disclosed is a data controller that controls the transfer of data between a host device 400 and a peripheral device 300 via a USB Type-C connector 304 of the host device. The data controller has a path controller 309, 310 that establishes signal paths between circuitry of the host device and contacts of the USB Type-C connector. The path controller operates in first and second modes. In the first mode the path controller establishes separate signal paths to each of four contacts A6, A7, B6, B7 of the USB Type-C connector and some of the established signal paths are for the transfer of analogue audio data. In the second mode the path controller establishes a pair of signal paths to only a subset of the four contacts to provide a differential digital data path. The data controller may when entering first mode determine a connection configuration for the peripheral device, the configuration indicating whether the connector is connected to a microphone or a loudspeaker. |
