SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
The palette RAM is a programmable cross reference table that maps a small set of input codes into a larger set of output codes. For active matrix displays, the palette RAM programmed in the LCD is used only for color source images. For passive matrix displays, the palette RAM is used for both grayscale and color source images. For color components, the passive matrix mode only supports, 4 bits per color component. One, two, three, and eight bit per pixel (bpp) source images always use the palette. Twelve, 16, and 24 bits per pixel do not use the palette RAM, since raw data transfers occur.
The LCD palette RAM uses a 12-bit output code such that there is a possibility of 4096 color options to choose from. Depending on the bpp frame storage of palette RAM, two, four, 16, or 256 palette colors can be stored in the palette RAM.