I use the ADV7844 for a product. Now, the output of the product is correct(ADV7844 TO ADV7511 the Tv dispaly normal), but I can't read the infoFrame in the 7C Map, there is no AVI infoFrame. I read the IO-40 60 = 07 this indicate that the adv7844 had received the infoFrame, but I read the address 7C it all 0, why? which register should i config?
(changed "can" to can't based on customer response)