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Replacing ADV7189 by ADV7189B: VBI transparancy?


We replaced the ADV7189 video decoder by the ADV7189B. Now the VBI data (teletext in PAL signal) on the SD output is not correct any more. Do we need to change particular register settings to make the decoder transparent to VBI data? Is there also a changeover document available?

We already enabled the VBI_EN bit to make sure that the VBI data is passed through with only a minimum amount of filtering. Also we enabled the BL_C_VBI bit to ensure the chroma will be blanked during VBI.

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