Could you state what HDMI version being supported on ADV748x series?
"HDMI 1.4 specifications" can be found on ADV748x Hardware manual but support HDMI version is not stated on datasheet and webpage like ADV7611/7612(both 1.4a).
Did you refer this thread HDMI version of ADV7611 and ADV748x ?
I believe that it supports HDMI version 1.4b as per hardware reference.
Let me check with part specialist and confirm you.
I believe that the HDMI revision is not published to stay in-line with HDMI branding guidelines.
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