SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
This section describes the pixel data bus and shows timing diagrams of transactions and synchronizations.
Figure 11-24 through Figure 11-27 show the pixel data bus, depending on the use of 12-, 16-, 18-, or 24-pixel data output pins.
In the Active matrix display type, one pixel per pixel clock is displayed.
Active matrix displays bypass the STN dithering logic block and the output FIFO. Each line represents one pixel.
Figure 11-24 through Figure 11-27 show 12-, 16-, 18-, and 24-bit active matrix displays, respectively.
Table 11-55 summarizes the mapping of RGB color components to DSS output data signals, with corresponding settings of DISPC_CONTROLo[9:8] TFTDATALINES register bit-field.
Color Assignment | 12-bit Output Mode | 16-bit Output Mode | 18-bit Output Mode | 24-bit Output Mode |
---|---|---|---|---|
TFTDATALINES=00b | TFTDATALINES=01b | TFTDATALINES=10b | TFTDATALINES=11b | |
Red 7 (MS bit) | - | - | - | voutX_d23(1) |
Red 6 | - | - | - | voutX_d22 |
Red 5 | - | - | voutX_d17 | voutX_d21 |
Red 4 | - | voutX_d15 | voutX_d16 | voutX_d20 |
Red 3 | voutX_d11 | voutX_d14 | voutX_d15 | voutX_d19 |
Red 2 | voutX_d10 | voutX_d13 | voutX_d14 | voutX_d18 |
Red 1 | voutX_d9 | voutX_d12 | voutX_d13 | voutX_d17 |
Red 0 | voutX_d8 | voutX_d11 | voutX_d12 | voutX_d16 |
Green 7 | - | - | - | voutX_d15 |
Green 6 | - | - | - | voutX_d14 |
Green 5 | - | voutX_d10 | voutX_d11 | voutX_d13 |
Green 4 | - | voutX_d9 | voutX_d10 | voutX_d12 |
Green 3 | voutX_d7 | voutX_d8 | voutX_d9 | voutX_d11 |
Green 2 | voutX_d6 | voutX_d7 | voutX_d8 | voutX_d10 |
Green 1 | voutX_d5 | voutX_d6 | voutX_d7 | voutX_d9 |
Green 0 | voutX_d4 | voutX_d5 | voutX_d6 | voutX_d8 |
Blue 7 | - | - | - | voutX_d7 |
Blue 6 | - | - | - | voutX_d6 |
Blue 5 | - | - | voutX_d5 | voutX_d5 |
Blue 4 | - | voutX_d4 | voutX_d4 | voutX_d4 |
Blue 3 | voutX_d3 | voutX_d3 | voutX_d3 | voutX_d3 |
Blue 2 | voutX_d2 | voutX_d2 | voutX_d2 | voutX_d2 |
Blue 1 | voutX_d1 | voutX_d1 | voutX_d1 | voutX_d1 |
Blue 0 (LS bit) | voutX_d0 | voutX_d0 | voutX_d0 | voutX_d0 |