MB86290A Datasheet, PDF (61/184 Pages) Fujitsu Component Limited. – Graphics Controller Hardware Specifications

6.1.3 Frame Buffer
For drawing, the following area must be assigned to the Graphics Memory.
The frame size (number of pixels on X span) is common for these areas.
Drawing frame
The results of drawing are contained in the graphical image data area. Both
the direct and indirect color mode are applicable.
Z buffer
nts area dr used to eliminate hidden surfaces in drawinga3D graphics. 2i
bytes/pixel of area is required.
Polygon draw flag buffer
This area is used to perform polygon drawing hidden surfaces in 3D graphics
drawing. 1bit/pixel of area is required. 1 line is aligned by byte to byte.
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