SYSTEMS AND METHODS FOR RATE DETECTION FOR SOUNDWIRESM EXTENSION (SOUNDWIRE XL) CABLES

摘要

Systems and methods for rate detection for SOUNDWIRE extension (SOUNDWIRE XL) cables are disclosed. In one aspect software may be used to initiate a capability exchange between a host device and a slave device over a SOUNDWIRE XL cable. In a second exemplary aspect resistors may be associated with data lines in the slave device. Designers may encode rate information into the slave device by using different values for the elements. The host device may then sample the data lanes and determine a rate for the slave device.