RM0090 Rev 18 511/1749
RM0090 LCD-TFT controller (LTDC)
514
16.7.25 LTDC Layerx CLUT Write Register (LTDC_LxCLUTWR)
(where x=1..2)
This register defines the CLUT address and the RGB value.
Address offset: 0xC4 + 0x80 x (Layerx -1), Layerx = 1 or 2
Reset value: 0x0000 0000
Note: The CLUT write register should only be configured during blanking period or if the layer is
disabled. The CLUT can be enabled or disabled in the LTDC_LxCR register.
The CLUT is only meaningful for L8, AL44 and AL88 pixel format.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
CLUTADD[7:0] RED[7:0]
wwwwww w w ww w w w w w w
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
GREEN[7:0] BLUE[7:0]
wwwwww w w ww w w w w w w
Bits 31:24 CLUTADD[7:0]: CLUT Address
These bits configure the CLUT address (color position within the CLUT) of each RGB
value
Bits 23:16 RED[7:0]: Red value
These bits configure the red value
Bits 15:8 GREEN[7:0]: Green value
These bits configure the green value
Bits 7:0 BLUE[7:0]: Blue value
These bits configure the blue value
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