S1D13704 Epson Electronics America, Inc., S1D13704 Datasheet - Page 116

• Manufacturer Part Number: S1D13704
• Description: LCD Controller
• Manufacturer: Epson Electronics America, Inc.

Page 20
Color Modes
S1D13704
X26A-G-002-03
1 Bpp Color
When the S1D13704 is configured for 1 bit-per-pixel color mode, only the first two colors
from the active bank are displayed. The two entries can be set to any color but are typically
set to black and white.
Each byte in the display buffer contains 8 bits, each bit represents an individual pixel. A bit
value of "0" results in the Look-Up Table 0 value being displayed. A bit set to "1" results
in the Look-Up Table index 1 value displayed.
The following table shows the recommended values for 1 bpp on a color panel.
2 Bpp Color
When the S1D13704 is configured for 2 bit-per-pixel color mode, only the first four colors
from the active bank are displayed. The four entries can be set to any color.
Each byte in the display buffer contains 4 adjacent pixels. Each pair of bits in the byte are
used as an index into the LUT. The following table shows example values for 2 bpp color
mode.
Table 4-5: Recommended LUT Values for 1 Bpp Color Mode
Table 4-6: LUT Values for 2 Bpp Color Mode
Index
Index
00
01
02
0F
00
01
02
03
04
0F
...
...
Red
Red
0F
0F
0F
00
00
00
00
00
00
00
00
00
Normally unused entries
Normally unused entries
Green
Green
00
0F
00
00
00
00
00
0F
0F
00
00
00
Blue
Blue
0F
0F
0F
00
00
00
00
00
00
00
00
00
Epson Research and Development
Programming Notes and Examples
Vancouver Design Center
Issue Date: 01/02/12