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Is there an explanation of the undocumented register values listed in the ADV7280-M example script(ADV7280M_Cust-VER.4.1.txt)?

Question asked by jgaiser on Jun 9, 2017
Latest reply on Jun 13, 2017 by JeyasudhaMuthuPerumal

I'm looking at ADV7280M_Cust-VER.4.1.txt and there are writes to bit 7 of register 0x0E:


:AUTODETECT CVBS Single Ended In Ain 3, MIPI Out:
delay 10 ;
42 0F 00 ; Exit Power Down Mode
42 00 02 ; INSEL = CVBS in on Ain 3
42 0E 80 ; ADI Required Write


Is there an explanation of what this write is for?  The ADV7280/ADV7281/ADV7282/ADV7283 Hardware Reference Manual shows bit 7 is reserved.  Can you please explain the purpose of this bit?