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Page 20 Epson Research and Development
Vancouver Design Center
S1D13705 Programming Notes and Examples
X27A-G-002-03 Issue Date: 02/01/22
8 bpp color
When the S1D13705 is configured for 8 bpp color mode the entire Look-Up Table is used
to display images. Each of the LUT entries may be set to any of the 4096 possible colors.
Each byte in the display buffer represents one pixels. The byte value is used directly as an
index into one of the 256 LUT entries. A display memory byte with a value of 00h will
display the color contained in the first Look-Up Table entry while a display memory byte
of FFh will display a color formed byte the two hundred and fifty sixth Look-Up Table
entry.
The following table depicts LUT values which approximate the VGA default 256 color
palette.
Table 4-4: Suggested LUT Values to Simulate VGA Default 256 Color Palette
Index R G B Index R G B Index R G B Index R G B
00 00 00 00 40 F0 70 70 80 30 30 70 C0 00 40 00
01 00 00 A0 41 F0 90 70 81 40 30 70 C1 00 40 10
02 00 A0 00 42 F0 B0 70 82 50 30 70 C2 00 40 20
03 00 A0 A0 43 F0 D0 70 83 60 30 70 C3 00 40 30
04 A0 00 00 44 F0 F0 70 84 70 30 70 C4 00 40 40
05 A0 00 A0 45 D0 F0 70 85 70 30 60 C5 00 30 40
06 A0 50 00 46 B0 F0 70 86 70 30 50 C6 00 20 40
07 A0 A0 A0 47 90 F0 70 87 70 30 40 C7 00 10 40
08 50 50 50 48 70 F0 70 88 70 30 30 C8 20 20 40
09 50 50 F0 49 70 F0 90 89 70 40 30 C9 20 20 40
0A 50 F0 50 4A 70 F0 B0 8A 70 50 30 CA 30 20 40
0B 50 F0 F0 4B 70 F0 D0 8B 70 60 30 CB 30 20 40
0C F0 50 50 4C 70 F0 F0 8C 70 70 30 CC 40 20 40
0D F0 50 F0 4D 70 D0 F0 8D 60 70 30 CD 40 20 30
0E F0 F0 50 4E 70 B0 F0 8E 50 70 30 CE 40 20 30
0F F0 F0 F0 4F 70 90 F0 8F 40 70 30 CF 40 20 20
10 00 00 00 50 B0 B0 F0 90 30 70 30 D0 40 20 20
11 10 10 10 51 C0 B0 F0 91 30 70 40 D1 40 20 20
12 20 20 20 52 D0 B0 F0 92 30 70 50 D2 40 30 20
13 20 20 20 53 E0 B0 F0 93 30 70 60 D3 40 30 20
14 30 30 30 54 F0 B0 F0 94 30 70 70 D4 40 40 20
15 40 40 40 55 F0 B0 E0 95 30 60 70 D5 30 40 20
16 50 50 50 56 F0 B0 D0 96 30 50 70 D6 30 40 20
17 60 60 60 57 F0 B0 C0 97 30 40 70 D7 20 40 20
18 70 70 70 58 F0 B0 B0 98 50 50 70 D8 20 40 20
19 80 80 80 59 F0 C0 B0 99 50 50 70 D9 20 40 20
1A 90 90 90 5A F0 D0 B0 9A 60 50 70 DA 20 40 30
1B A0 A0 A0 5B F0 E0 B0 9B 60 50 70 DB 20 40 30