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MB87P2020 Datasheet, PDF (129/356 Pages) Fujitsu Component Limited. – Colour LCD/CRT/TV Controller
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Video Interface Controller
2.2 Data format in Video RAM (SDRAM)
Figure 2-2 shows the physical placement of all supported video color formats within a layer. These formats
are equal to those of Graphic Processing Unit (GPU) and Pixel Processor (PP) so that video input PP draw-
ings can be mixed within one layer. Of course a drawing will be overwritten with the input video picture
but nonoverlapping merging of drawing and video is possible. Be also aware of layer synchronization be-
tween VIC and GPU; either only one layer is taken for synchronization or the drawing is copied on all two
or three layers with help of MemCP command. If only one of two/three layers contains the drawing you will
see a flicker on display output.
VIC performs a format mapping from video input format according to figure 2-1 to the Lavender/Jasmine
internal format according to figure 2-2 for a given color depth. Note that some color formats are not sup-
ported by Lavender. Table 2-1 gives an overview on available formats for both display controllers.
Y0
U0
V0
Y0
R0
G0
R0
G0
B0
R0
G0
B0
X
V0
Y0
U0
X
V0
Y0
U0
Y1
V0
Y2
U2
U0
B0
R1
---
XXXXXXXX
---
XXXXXXXX
G1
B1
V1
R1
R2
Y1
G1
G2
B2
R1
G1
B1
R2
G2
B2
X
X
V1
Y1
U1
V2
Y2
U2
X
X
V1
Y1
U1
V2
Y2
U2
Y3
YUV 422
U1 16 bit
YUV 444
24 bit
B1
RGB 888
24 bit
R3 G3
RGB 565
16 bit
R3 G3
RGB 555
16 bit
V3 Y3
YUV 555
16 bit
V3 Y3
YUV 655
16 bit
32 bit
Figure 2-2: Different color formats in video RAM
Note: RGB --> VYU
Table 2-1: Supported Video color formats for Lavender and Jasmine
Format
YUV422
YUV444
RGB888
RGB565
Lavender
grayscale
grayscale
yes
yes
Jasmine
yes
yes
yes
yes
Comment
Lavender does not contain a YUV to
RGB conversation therefore this for-
mat is converted to grayscale with
256 steps.
Lavender does not contain a YUV to
RGB conversation therefore this for-
mat is converted to grayscale with
256 steps.
VIC Description
Page 129
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