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How can I make sure the ADV7482 is powered up?

Question asked by BobZhang on May 10, 2017
Latest reply on May 11, 2017 by GuenterL

Now, I want to control the ADV7482 chip through I2C, and I am sure that the I2C IO Map write address of ADV7482 is 0xE0, because the ALSB pin is logic 0. But When I start up my system and try to write registers through I2C, my I2C analyzer always notes me the ADV7482 is NACK. So I want to know I can I know the chip is already powered up.