Can I keep ADV748X EDID data in EDID RAM if system only provides 5V power via HDMI connector, and the other power are all power down?
If I can't keep those data with HDMI 5V, how would you suggest me to do in order to pass HDMI certification item (Test ID 8-1) which requires that EDID can be read after powering down for general case.
Thanks very much!
The data in the EDID will not be maintained in the EDID RAM if the supplies to the ADV748x are not provided. Please see Section 220.127.116.11 in the Hardware Manual:
“The E-EDID/repeater controller is…