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TMDS1204: VIO

Jeff YANG
Mastermind 7865 points
Part Number: TMDS1204

Hi,

Regarding TMDS1204 pins 24 and 25, they have internal pull-ups. I would like to inquire if pins 24 and 25 are internally connected to VIO. Is the power supply for VIO generated internally by TMDS1204, or does it need to be supplied externally? If an external supply is required, can it be connected to 3.3V, or are there any restrictions? This is because HDMI_DDC_SDA_POL and HDMI_DDC_SCL_POL are connected to a 3.3V power source on the HOST side. Therefore, if VIO operates at 1.8V, there will be a voltage level mismatch with the HOST's 3.3V voltage.

Thanks!