LEN=B_0x0, CLUTEN=B_0x0, CKEN=B_0x0, DCBEN=B_0x0, HMEN=B_0x0
LTDC layerx control register
| LEN | layer enable 0 (B_0x0): layer disabled 1 (B_0x1): layer enabled |
| CKEN | color keying enable 0 (B_0x0): color keying disabled 1 (B_0x1): color keying enabled: if RGB matches, then the ARGB are set to 0. |
| CLUTEN | color look-up table enable 0 (B_0x0): color look-up table disabled 1 (B_0x1): color look-up table enabled |
| HMEN | horizontal mirroring enable 0 (B_0x0): mirror disabled 1 (B_0x1): mirror enabled (if so, the color frame buffer start address has to be set to the last byte of the first line, so for instance: if line is 100 pixels, 24 bpp, then address is set to 299) |
| DCBEN | default color blending enable 0 (B_0x0): blending disabled 1 (B_0x1): blending enabled |