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HDCP Specification v1.1 Amendment for HDCP-GVIF Revision 1.0

3.1.3 AVMUTE GVIF-HDCP extends CNTx signaling in order to indicate AVMUTE state. Additional CNT4 and CNT5 are used during window of opportunity described in Appendix D.

4. Authentication Error Message Report In the automotive entertainment system, host controller may watch the existence of authentication protocol errors in the individual HDCP-GVIF transmitter and receiver. When an authentication protocol error in either HDCP-GVIF transmitter or receiver is reported to the attached local controller, then local controller forwards the error message to the host controller via automotive network. And host controller instructs the most upstream HDCP-GVIF transmitter to execute appropriate treatment such as re-authentication.

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