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About the STDI_INTLCD of ADV7441A

Question asked by harmony on Jan 17, 2017
Latest reply on Jan 17, 2017 by harmony

Hi all, I'm now using ADV7441A to recognize the input video(include the resolution and the video interface of HDMI/YPbPr/VGA/CVBS).

I use the one-shot detect mode of STDI to recognize the video interface, but question comes when I read the STDI parameters (FCL/BL/LCVS/LCF/INTLCD) to recognize the resolution. The problem is the INTLCD. According to the HW handbook, when STDI_DVALID=1, all the five parameters is valid. But INTLCD sometimes is error, when input is YPbPr video. And INTLCD will be error especially when in NTSC/PAL of YPbPr Video. How do I to resolve this problem?