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公开(公告)号:US10152444B1
公开(公告)日:2018-12-11
申请号:US15275314
申请日:2016-09-23
Applicant: Apple Inc.
Inventor: Alexander Naidich , David J. Redman
Abstract: Information is provided to a source device during link training regarding the state of a remote link when an intermediate device using a different protocol is connected between source and sink devices. The intermediate device includes two controllers connected by a cable, the first controller being connected to the source device and the second controller being connected to the sink device. State information regarding the remote device may be provided by a state machine that stores data to a register on the intermediate device. Based on the state of the remote link, the source device is able to generate a representation of the end to end link between the source and sink device, and to perform link training accordingly.