SNLS543 August 2018 DS90UH949A-Q1
By default, the Pattern Generator operates in 24-bit color mode where all bits of the Red, Green, and Blue outputs are enabled. 18-bit color mode can be activated from the configuration registers (Table 10). In 18-bit mode, the 6 most significant bits (bits 7-2) of the Red, Green, and Blue outputs are enabled. The 2 least significant bits will be 0.