Please let me know about I2C of ADV7611.
NACK is returned when IO, Address 0xFF=1 MAIN_RESET is written.
(please refer to attachnment)
Above is not done at the other register.
HARDWARE USER'S GUIDE (UG-180) describes that read/write through I2C is done after 5ms from reset by input pin.
But, there is not any description about MAIN_RESET.
1 Pleaes let me know the theory of operation which returns NACK immediately after MAIN_RESET 1:Applies main I2C reset
2 If there is any document about return of NACK , please give me it.