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ADV7604: internal EDID and “Hot Plug Detect (HPD)”

Question asked by Sasa on Aug 29, 2011
Latest reply on Apr 4, 2012 by Sasa

Hi!

 

Specification of HDMI state:

An HDMI Sink shall not assert high voltage level on its Hot Plug Detect pin when the E-EDID is not available for reading …, even if the Sink is powered-off or in standby.

 

How can I know about ready for reading internal EDID?

That is, when will be prepared data in internal RAM by EDID/Repeater controller and how can I know about this that I can assert right level on HPD?

 

How is deciding this problem in “Power-down Mode 0” (pin “PWRDNB”=0)?

 

Alexandr

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