MB90098A Datasheet, PDF (27/43 Pages) Fujitsu Component Limited. – On-Screen Display Controller

MB90098A
[Function]
This function controls the transparent color.
[Additional Information]
• The transparent color code (TC3-TC0) may be set to any desired color code, and the transparent color control
set to On (TC = 1) so that any display area of the specified color will be rendered invisible. Areas of the specified
color will be output as the underlying layer display.
• Command 6-3 (Graphic color control)
15 14 13 12 11 10 9
0 1 1 0 1 1 GF
876543210
GC GF3 GF2 GF1 GF0 GC3 GC2 GC1 GC0
GF : Graphic color border color replacement control
(0 : Off, 1 : On)
GC : Graphic color character color replacement control
(0 : Off, 1 : On)
GF3-GF0 : Border color replacement color code (16 colors)
GC3-GC0 : Character color replacement color code (16 colors)
[Function]
This function replaces a specified color in graphic characters with a character color or border color in the display.
[Additional information]
• The graphic character display color is fixed and registered in font ROM. This command can be used to replace
any specified graphic character display color with the border color or character color.
• Any desired color in a graphic character (specified by the GF3-GF0 bits) can be replaced by the border color
(LF3-LF0) set in the row control data setting 1 command (command 3) .
• Any desired color in a graphic character (specified by the GC3-GC0 bits) can be replaced by the character
color (MC3-MC0) set in the character data setting 1 command (command 1) .
• If the graphic color border color replacement control is on (GF bit = 1) and the transparent color control is on
(TC bit = 1 in command 6-2) , and also the graphic color border color replacement color code is the same as
the transparent color code (TC3-0 in command 6-2) , the border color replacement has priority.
• If the graphic color border color replacement control is on (GF bit = 1) and the transparent color control is on
(TC bit = 1 in command 6-2) , and also the border color of the border color replacement color code (LF3-LF0
in command 3) is the same as the transparent color code (TC3-0 in command 6-2) , the color will be transparent
and the lower layer color will be displayed.
• If the graphic color character color replacement control is on (GC bit = 1) and the transparent color control is
on (TC bit = 1 in command 6-2) , and also the graphic color character color replacement color code is the
same as the transparent color code (TC3-0 in command 6-2) , the character color replacement has priority.
• If the graphic color character color replacement control is on (GC bit = 1) and the transparent color control is
on (TC bit = 1 in command 6-2) , and also the characterer color of the characterer color replacement color
code (MC3-MC0 in command 1) is the same as the transparent color code (TC3-0 in command 6-2) , the color
will be transparent the the lower layer color will be displayed.
• If the graphic color character color replacement control is on (GC bit = 1) and the graphic color border color
replacement control is on (GF bit = 1) , the character color replacement color code (GC3-GC0 bits) and border
color replacement color code (GF3-GF0 bits) should be set to different colors.
(Caution)
• This command applies only to the color of main screen graphic characters. It has no affect on the color of
sprite characters of screen background character dot colors.
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