ST STM32L496 Series, Application Note, Page: 15 / 22

DocID029937 Rev 2 15/22
AN4943 New DMA2D features to support Intel 8080 displays
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Figure 6. 16bpp over 8-bit interface color coding
•
24bpp (16.7million colors) and 18bpp (262k colors) over 8-bit interface.
Figure 7 shows the pixel color coding for 24bpp over an 8-bit bus interface.
Figure 7. 24bpp over 8-bit interface color coding
Note: The 18bpp displays have the same color coding except that in case of 18bpp, R/G/B[6:0]
are placed in the most significant bits of the bus (D[7:2]) and data lines D0 and D1 are
ignored.
MSv48348V1
1 2 3 4
Transfer
number
D7
D6
D5
D4
D3
D2
D1
D0
R0 [4]
R0 [3]
R0 [2]
R0 [1]
R0 [0]
G0 [5]
G0 [4]
G0 [3]
G0 [2]
G0 [1]
G0 [0]
B0 [4]
B0 [3]
B0 [2]
B0 [1]
B0 [0]
R1 [4]
R1 [3]
R1 [2]
R1 [1]
R1 [0]
G1 [5]
G1 [4]
G1 [3]
G1 [2]
G1 [1]
G1 [0]
B1 [4]
B1 [3]
B1 [2]
B1 [1]
B1 [0]
Pixel 0 Pixel 1
Green component
Red component
Blue component
MSv48349V1
B0 [7]
B0 [6]
B0 [5]
B0 [4]
B0 [3]
B0 [2]
B0 [1]
B0 [0]
G0 [7]
G0 [6]
G0 [5]
G0 [4]
G0 [3]
G0 [2]
G0 [1]
G0 [0]
R0 [7]
R0 [6]
R0 [5]
R0 [4]
R0 [3]
R0 [2]
R0 [1]
R0 [0]
1
2
3
4
Transfer
number
R1 [7]
R1 [6]
R1 [5]
R1 [4]
R1 [3]
R1 [2]
R1 [1]
R1 [0]
D7
D6
D5
D4
D3
D2
D1
D0
Pixel 0 Pixel 1
Green component
Red component
Blue component