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[ADV7511W] HPD assart timing and power-supply of TMDS/DDC line's pull-up.

Question asked by Tamu on Sep 19, 2013
Latest reply on Sep 26, 2013 by Tamu

Hello.

 

I have questions about ADV7511W.

Please tell me about HPD assart timing and power-supply of TMDS/DDC line's pull-up.

 

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Question 1:
There is following description on ADV7511W HARDWARE USER'S GUIDE P.40.
"6.7.1 Power Supply Sequencing
There is no required sequence for turning on or turning off the power domains; all should be fully powered up or down within 1 second of the others."

 

How about HPD assart timing?
Does ADV7511W have required sequence or time between power-up and HPD assart timing?
(For example, HPD must be assarted after enough time from power-up of the device. etc.
HPD must not be assarted before power-up of the device. etc.)

 

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Question 2:
How about power-supply of TMDS/DDC line's pull-up?
Does ADV7511W have required sequence or time between power-up of TMDS/DDC line's pull-up and power-up of the device?
(For example, TMDS/DDC line's pull-up must not be supplied before power-up of the device. etc.)

 

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Thank you!
Best regards.
Tamu

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