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HDMI signals

Question asked by alessandro piscozzo on May 8, 2014
Latest reply on May 11, 2014 by igorpadykov

Hi all,

the i.MX6's HDMI controller supports two signals for the CEC interface.

CEC interface is based on the "one-wire" standard and the IO pin (if drived by the controller and not by a GPIO) is "K2", (HDMI_TXDDC_CEC).

 

i.MX6 has another signal related to the CEC interface. It is placed on the "W4" and "H19" balls (is muxed). The name of the signal is: HDMI_TX_CEC_LINE

Can anyone expplain its function?

Freescale "MCIMX6Q-SMART DEVICE BOARD" ev board doesn't even connect it.

 

Thank you all!

Alessandro

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