Hey JohnRob, thanks!!
You are right! I tested the I2C SCAN to confirm the address and communication. I think the hardware it is fine.
Works fine!! And was possible confirm the address 0x34. I use the A1 and A2 in the ground
I think have some configuration missing... I don't know..
When I change the HDMI source and turn off/on the television, I receive data in the serial monitor... But I can't receive any other message from HDMI like buttons from remote control.
I will try more and if I can't do that, I will change to HDMI CEC library for Arduino already. The guys implement a library to read CEC line directly in the I/O of Atmega.
I try this IC because have the I2C bus and interruption when the message is ready. In my mind sounds more easily.. But don't worked hahaha