extract VITC data from the ADV7181D

I'm trying to extract VITC data from the ADV7181D and there are some anomalies with the I2C register map.


Looking at the datasheet ADV7181D_Manual_Rev0.pdf from https://ez.analog.com/video/w/documents/760/adv7181d-design-support-files

the register at 0x0E ( ADI Control ) is defined in Table 69. The active bit is bit 5 - SUB_USR_EN.


In the document ADV7181D_ADV7181D@_ADV7341-VER.1.0c.txt also from the same source,  which contains initialization scripts the only bit of that register to be controlled is bit 7.


In the first script ##SD CVBS##:AUTODETECT CVBS IN NTSC/PAL/SECAM, 8-Bit 422 encoder, for example :

there are also register accesses in the User 1 space beyond the range of that space.

The limit of the space is 0x9C, but registers from 0xB1 to 0xF6 are accessed.


I could go on but hopefully this will whet your appetite!

Please can you explain these anomalies so I can have confidence that I have the correct documentation?