S1D13503 Epson Electronics America, Inc., S1D13503 Datasheet - Page 128

• Manufacturer Part Number: S1D13503
• Description: S1d13503 Graphics Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Page 32
3.2.8 256 Colors (Eight Bits/Pixel in Color Mode)
S1D13503
X18A-G-002-06
When the S1D13503 has 8-bit color pixels, bits 7-5 represent the red LUT index, bits 4-2 represent the green LUT index,
and bits 1-0 represent the blue LUT index (see Figure 9, “256-Level Color Mode Look-Up Table Architecture,” on page
33). It is recommended that the three LUTs are programmed according to Table 3-5, “S1D13503 Color Look-up Table For
256 Color Mode,” on page 23, and only bank 0 were used for each of the three colors. This method results in each color
index inside the pixel to represent its respective color intensity (see Table 3-11 below).
Pixel Value
000 000 00
000 000 10
000 100 00
000 100 10
100 000 00
100 000 10
100 100 00
100 100 10
Table 3-11: Examples Of 256 Pixel Colors Using Linear LUT
(binary)
dark magenta
dark yellow
dark green
dark cyan
dark blue
dark red
Color
black
gray
Pixel Value
000 000 00
000 000 11
000 111 00
000 111 11
111 000 00
111 000 11
111 111 00
111 111 11
(binary)
Epson Research and Development
bright magenta
bright yellow
bright green
bright cyan
Programming Notes and Examples
bright blue
bright red
Color
black
white
Vancouver Design Center
Issue Date: 01/01/30