MB86290A Datasheet, PDF (52/184 Pages) Fujitsu Component Limited. – Graphics Controller Hardware Specifications

5.5 Processing Flow for Display Data
Processing such as layer overlapping (superimposing) and chroma key is
performed as follows:
M-layer
B-layer W-layer
ML-layer Trans-
parent Color
Color
Overlap by
Priority
MR-layer Trans-
parent Color
Color
Pallet
for M&B
Cursor0
Cursor1 C-layer
Overlap by
Priority
Pallet
for C
C-layer
Trans-
parent Color
Cursor Over-
lap Mode
Color
Cursor Trans-
parent Color
Color
bitpixel ^Select
Select _bitpixel
Overlap by
Priority
Blend
Blend Mode
Blend Ratio
Blend Enable ^Select
C-layer
Select
Chroma Key
Mode
DAC
Compare _{Key Color}
Analog RGB GV output
output
Fig. 5.1 Display data processing flow
ML-layer Transparent Color
Specifies transparent color code for left side of M layer
The color code corresponding to the transparent color is used to output
transparent image data for the lower layer.
ML-layer Transparent Color
Specifies transparent color code for right side of M layer
The color code corresponding to the transparent color is used to output
transparent image data for the lower layer.
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