Page 13 of DS describes the PIXEL INPUT/OUTPUT FORMATTING The output section of the ADV7612 is highly flexible. The pixel output bus can support up to 36-bit 4:4:4 YCrCb or 36-bit 4:4:4 RGB. The pixel data supports both single and double data rates modes1 . In SDR mode, a 16-/20-/24-bit 4:2:2 or 24-/30-/36-bit 4:4:4 output is possible. In DDR mode, the pixel output port can be configured in an 8-/10-/12-bit 4:2:2 YCrCb or 12-bit 4:4:4 RGB. Bus rotation is supported. Table 5 to Table 8 outline the different output formats that are supported. All output modes are controlled via I2 C.
Yet Table 8, does not show the 12 bit does not show the 12-bit 4:4:4 RGB, is this data available?