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MB86R02 'Jade-D' Hardware Manual V1.64
BC (Background Color)
Register
DrawBaseAddress + 484
address
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Bit field name
R/W
Initial value
This register sets the drawing frame background color. This color is used for the background color
of bitmap drawing and broken line drawing. At bitmap drawing, all bits set to "0" are drawn in the
color set at this register.
BT bit of this register allows the background color of be transparent (no drawing).
8 bit color mode:
Bit 7 to 0
BGC8 (Background 8 bit Color)
Sets the indirect color for the background (color index code)
Bit 14 to 8
Not used
Bit 15
BT (Background Transparency)
Sets the transparent mode for the background color
0
1
Bit 31 to 16
Not used
16 bit color mode:
Bit 14 to 0
BGC16 (Background 16 bit Color)
Sets 16-bit direct color (RGB) for the background
Bit 15
BT (Background Transparency)
Sets the transparent mode for the background color
0
1
Bit 31 to 16
Not used
18-226
H
Background drawn using color set for BGC field
Background not drawn (transparent)
Background drawn using color set for BGC field
Background not drawn (transparent)
BGC8/16/24
RW
0
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