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ADV7842: Input signal is HDMI or DVI?

Question asked by KevinL Employee on Oct 26, 2012
Latest reply on Mar 8, 2013 by GuenterL


When an HDMI / DVI signal is connected to the ADV7842, there are two registers which contain bits indicating the mode - HDMI or DVI.

What is the difference in these two bits and which is the proper bit to use to determine the input mode?


IO map reg 0x65, bit 3 - Raw status signal of HDMI Mode signal

0 - DVI is being received

1 - HDMI is being received


HDMI map reg 0x05, bit 7 - A readback to indicate whether the stream processed by the HDMI core is a DVI or an HDMI stream.

0 - DVI mode detected

1 - HDMI mode detected