Epson CMOS 32-Bit Single Chip Microcomputer S1C33L03 Technical Manual page 550

VII LCD CONTROLLER BLOCK: LCD CONTROLLER
(3) 4-bpp (16-color) mode
Use all entries of each look-up table. Select 16-color data from among the 4,096 colors, and write it to the
respective entries. The RGB data in entry 0 is output for pixel data "0x0", and the RGB data in entry 15 is
output for pixel data "0xF".
0x0
0x1
0x2
4-bit pixel data
0x3
:
0xE
0xF
Table 2.11 shows an example of the basic data setting.
Table 2.11 Example of Look-up-Table Settings in 4-bpp (16-Color) Mode (VGA 16-Color-Mode Compatible)
B-VII-2-16
Index
0
1
2
3
:
14
15
Index
0
1
2
3
:
14
15
Index
0
1
2
3
:
14
15
Figure 2.14 Look-up Table in 4-bpp (16-Color) Mode
Index R look-up table
0 0
1 0
2 0
3 0
4 0xA
5 0xA
6 0xA
7 0xA
8 0
9 0
10 0
11 0
12 0xF
13 0xF
14 0xF
15 0xF
Red look-up table
4-bit R data for pixel data 0x0
4-bit R data for pixel data 0x1
4-bit R data for pixel data 0x2
4-bit R data for pixel data 0x3
:
4-bit R data for pixel data 0xE
4-bit R data for pixel data 0xF
Green look-up table
4-bit G data for pixel data 0x0
4-bit G data for pixel data 0x1
4-bit G data for pixel data 0x2
4-bit G data for pixel data 0x3
:
4-bit G data for pixel data 0xE
4-bit G data for pixel data 0xF
Blue look-up table
4-bit B data for pixel data 0x0
4-bit B data for pixel data 0x1
4-bit B data for pixel data 0x2
4-bit B data for pixel data 0x3
:
4-bit B data for pixel data 0xE
4-bit B data for pixel data 0xF
G look-up table
0
0
0xA
0xA
0
0
0xA
0xA
0
0
0xF
0xF
0
0
0xF
0xF
EPSON
4-bit R display data
4-bit G display data
4-bit B display data
B look-up table
0
0xA
0
0xA
0
0xA
0
0xA
0
0xF
0
0xF
0
0xF
0
0xF
S1C33L03 FUNCTION PART