Hello,
The chapter 2.4 of snla1329.pdf(Exploring the Int Test Pattern Generation Feature of FPDLink III IVI Devices) described the pattern mode, which included full screen black/white/red/green. But I didn't find the configuration registers how to configure full screen mode. Take DS90UB948 for example, how to configure the full screen black/white pattern?
https://www.ti.com/lit/an/snla132g/snla132g.pdf
Best regards
Kailyn