topic HDMI signals in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/HDMI-signals/m-p/312283#M40884 <HTML><HEAD></HEAD><BODY><P>Hi all,</P><P>the i.MX6's HDMI controller supports two signals for the CEC interface.</P><P><STRONG>CEC interface</STRONG> is based on the "<STRONG>one-wire</STRONG>" standard and the IO pin (if drived by the controller and not by a GPIO) is "K2", (<STRONG>HDMI_TXDDC_CEC</STRONG>).</P><P></P><P>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: <STRONG>HDMI_TX_CEC_LINE</STRONG></P><P><SPAN style="text-decoration: underline; font-size: 12pt;"><STRONG>Can anyone expplain its function?</STRONG></SPAN></P><P>Freescale "MCIMX6Q-SMART DEVICE BOARD" ev board doesn't even connect it.</P><P></P><P>Thank you all!</P><P>Alessandro</P></BODY></HTML> Thu, 08 May 2014 08:26:36 GMT pscz 2014-05-08T08:26:36Z HDMI signals https://community.nxp.com/t5/i-MX-Processors/HDMI-signals/m-p/312283#M40884 <HTML><HEAD></HEAD><BODY><P>Hi all,</P><P>the i.MX6's HDMI controller supports two signals for the CEC interface.</P><P><STRONG>CEC interface</STRONG> is based on the "<STRONG>one-wire</STRONG>" standard and the IO pin (if drived by the controller and not by a GPIO) is "K2", (<STRONG>HDMI_TXDDC_CEC</STRONG>).</P><P></P><P>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: <STRONG>HDMI_TX_CEC_LINE</STRONG></P><P><SPAN style="text-decoration: underline; font-size: 12pt;"><STRONG>Can anyone expplain its function?</STRONG></SPAN></P><P>Freescale "MCIMX6Q-SMART DEVICE BOARD" ev board doesn't even connect it.</P><P></P><P>Thank you all!</P><P>Alessandro</P></BODY></HTML> Thu, 08 May 2014 08:26:36 GMT https://community.nxp.com/t5/i-MX-Processors/HDMI-signals/m-p/312283#M40884 pscz 2014-05-08T08:26:36Z Re: HDMI signals https://community.nxp.com/t5/i-MX-Processors/HDMI-signals/m-p/312284#M40885 <HTML><HEAD></HEAD><BODY><P>Hi allessandro</P><P></P><P>HDMI_TXDDC_CEC (K2) is dedicated HDMI ground signal, so it is just</P><P>grounded on i.MX6 side. More details you can read in HDMI specification.</P><P></P><P>Best regards</P><P>chip</P><P>-----------------------------------------------------------------------------------------------------------------------</P><P>Note: If this post answers your question, please click the Correct Answer button. Thank you!</P><P>-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Mon, 12 May 2014 02:20:05 GMT https://community.nxp.com/t5/i-MX-Processors/HDMI-signals/m-p/312284#M40885 igorpadykov 2014-05-12T02:20:05Z