We are using the ADV7510 in several products and have been noticing some errors when connecting the DVI/HDMI to external equipment. Using an input mode of RGB 4:4:4, 24 bit with separate syncs and output mode of RGB 4:4:4 a field length error is indicated on a Tektronix WFM5250 scope for 1080P60/50 but 1080P30/25 resolutions are OK. The data is send to the chip in the video timing pattern called out in the CEA-861-E spec. This doesn't make sense since the video format timing is the same for 1080P60/50 as it is for 1080P30/25. Is there a register not being set that could be causing the error to show up?
The ADV7510 is used on another product that uses 4:2:2 12 bit embedded sync and does not indicate a problem with 1080P60/50 resolutions.