MB86294 Datasheet, PDF (62/305 Pages) Fujitsu Component Limited. – Grraphiics Controller specifications

FUJITSU LIMITED
PRELIMINARY and CONFIDENTIAL
6.3 D i s p la y C o l o r
Color data is displayed in the following modes:
Indirect color (8 bits/pixel)
In this mode, the index of the palette RAM is displayed. Data is converted to image data consisting of
6 bits for R, G, and B via the palette RAM and is then displayed.
Direct color (16 bits/pixel)
Each level of R, G, and B is represented using 5 bits.
Direct color (24 bits/pixel)
Each level of R, G, and B is represented using 8 bits.
YCbCr color (16 bits/pixel)
In this mode, image data is displayed with YCbCr = 4:2:2. Data is converted to image data consisting
of 8 bits for R, G, and B using the operation circuit and is then displayed.
The display colors for each layer are shown below.
Layer
L0
L1
L2
L3
L4
L5
Compatibility mode
Extended mode
Direct color (16, 24), Indirect color (P0)
Direct color (16, 24), Indirect color (P0)
Direct color (16, 24), Indirect color (P1), YCbCr Direct color (16, 24), Indirect color (P1), YCbCr
Direct color (16, 24), Indirect color (P1)
Direct color (16, 24), Indirect color (P2)
Direct color (16, 24), Indirect color (P1)
Direct color (16, 24), Indirect color (P3)
Direct color (16, 24), Indirect color (P1)
Direct color (16, 24)
Direct color (16, 24), Indirect color (P1)
Direct color (16, 24)
“Pn” stands for the corresponding palette RAM. Four palettes are used as follows:
Palette 0 (P0)
This palette corresponds to the C-layer palette for previous products. This palette is used for the L0
layer. This palette can also be used for the cursor.
Palette 1 (P1)
This palette corresponds to the M/B layer palette for previous products. In the compatibility mode, this
palette is common to layers L1 to 5. In the extended mode, this palette is dedicated to the L1 layer.
Palette 2 (P2)
This palette is dedicated to the L2 layer. This palette can be used only for the extended mode.
Palette 3 (P3)
This palette is dedicated to the L2 layer. This palette can be used only for the extended mode.
MB86294/294S CORAL_LB
Graphics Controller
62
Specifications Rev. 1.0