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Using AUX pin in HD3SS215 for switching CEC and Ultility signal

Other Parts Discussed in Thread: HD3SS215, TS3USB221, HD3SS215EVM, TMDS181

I am working on a project using HD3SS215 for switching HDMI signal. 
I realize the AUX pin is not needed, while there is no pin for CEC and Ultility signal for HDMI 2.0 Standard.
I wonder if I can use AUX pins (AUXp and AUXn) for switching CEC and Ultility signal?
If can, how I configure these pins to do that? If not, could I use the TS3USB221 to switch these signals?

Thanks and best regards,