SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-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.
When the DSS0_OVR_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 |