MB86296 Datasheet, PDF (77/352 Pages) Fujitsu Component Limited. – PCI Graphics Controller Specification

FUJITSU LIMITED PRELIMINARY AND CONFIDENTIAL
7.3 Display Color
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 isthen displayed.
The display colors for each layer are shown below.
Layer
Compatibility mode
Extended mode
L0 Direct color (16, 24), Indirect color (P0)
Direct color (16, 24), Indirect color (P0)
L1 Direct color (16, 24), Indirect color (P1), YCbCr Direct color (16, 24), Indirect color (P1), YCbCr
L2 Direct color (16, 24), Indirect color (P1)
Direct color (16, 24), Indirect color (P2)
L3 Direct color (16, 24), Indirect color (P1)
Direct color (16, 24), Indirect color (P3)
L4 Direct color (16, 24), Indirect color (P1)
Direct color (16, 24)
L5 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 L3 layer. This palette can be used only for the extended mode.
MB86296S <Coral-PA>
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Specification Manual Rev0.1