SPRUJB3C March 2024 – November 2025 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
Each overlay manager supports a simple internal color bar insertion in each display output path to enable testing of display output interface without using the frame buffer data from the memory.
The colors are: White, Yellow, Cyan, Green, Magenta, Red, Blue, Black, as shown in below. These make three primary colors, three secondary colors, white, and black.
Figure 12-549 DISPC Overlay Internal Color
BarWhen the DSS_OVR1_CONFIG[1] COLORBAREN register bit is set to 1, the overlay output data is replaced by the predefined ARGB48 color bar data.
When color bar mode is used, the color space conversion matrix should be appropriately programmed, so that it can convert the full-range RGB to the desired color format.
| Color | G | B | R |
|---|---|---|---|
| White | 0xFFF | 0xFFF | 0xFFF |
| Yellow | 0xFFF | 0 | 0xFFF |
| Cyan | 0xFFF | 0xFFF | 0 |
| Green | 0xFFF | 0 | 0 |
| Magenta | 0 | 0xFFF | 0xFFF |
| Red | 0 | 0 | 0xFFF |
| Blue | 0 | 0xFFF | 0 |
| Black | 0 | 0 | 0 |