Epson S1D13706 Technical Manual page 183

Embedded memory lcd controller
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Epson Research and Development
Vancouver Design Center
Table 4-7: Suggested LUT Values to Simulate VGA Default 16 Color Palette
Programming Notes and Examples
Issue Date: 01/02/23
4 bpp color
When the S1D13706 is configured for 4 bpp color mode the first 16 entries in the LUT are
used. Each byte in the display buffer contains two adjacent pixels. The upper and lower
nibbles of the byte are used as indices into the LUT.
The following table shows LUT values that simulate those of a VGA operating in 16 color
mode.
Index
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
...
FF
= Indicates unused entries in the LUT
Red
Green
00
00
80
00
00
80
80
80
00
00
80
00
00
80
C0
C0
80
80
FC
00
00
FC
FC
FC
00
00
FC
00
00
FC
FC
FC
00
00
00
00
00
00
Blue
00
00
00
00
80
80
80
C0
80
00
00
00
FC
FC
FC
FC
00
00
00
X31B-G-003-03
Page 23
S1D13706

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