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ADV7623 Color Space Configuration Question

Question asked by ChrisO on Aug 13, 2013
Latest reply on Oct 6, 2013 by ChrisO

Hello guys.  I’d really appreciate some help with my ADV7623 color space configuration.

 

When I have TX Main Map - register Y1Y0[1:0] (0x55) configured as YCbCr 4:4:4 and my HDMI color bar generator (i.e. source) is configured to output color space YUV444 the sink video looks good.  When I switch the HDMI color bar generator to output YUV422 or RGB the sink screen colors are very wrong (see attached images). 

 

When I change TX Main Map - register Y1Y0[1:0] (0x55) to YCbCr 4:2:2 or RGB to match my HDMI color bar generator YUV 422 or RGB then my sink color is good.

 

So how/when do I know what to set TX Main Map - register Y1Y0[1:0] (0x55) to?  I can watch RX HDMI Map - register HDMI_COLORSPACE[3:0] 0x53 but it returns 0010 YUV_601 for BOTH my HDMI color bar generator YUV444 or YUV422.

 

What is the proper process for configuring color space?  This is one of only two outstanding issues left on our project! 

 

Thanks!

 

- Chris

 

 

Good color bars with YUV444 source and register Y1Y0[1:0] (0x55) set to YCbCr 4:4:4

yuv444 source input.jpg

 

 

Bad color bars with YUV422 source and register Y1Y0[1:0] (0x55) set to YCbCr 4:4:4

yuv442 source input.jpg

 

 

Bad color bars with YUV422 source and register Y1Y0[1:0] (0x55) set to RGB

rgb source input.jpg

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