Figure 12-7: 8 Bit-Per-Pixel - 256-Level Color Mode Look-Up Table Architecture - Epson S1D13504 Technical Manual

Page 126
8 Bit-Per-Pixel Color Mode
256 Color Data Format:
7 6 5 4 3 2 1
R2 R1 R0 G2 G1 G0 B1 B0
3-bit pixel data
3-bit pixel data
2-bit pixel data
Figure 12-7: 8 Bit-Per-Pixel
S1D13504
X19A-A-002-19
Red Look-Up Table
0
Bank 0
0
1
2
3
4
5
6
7
Bank 1
8
9
A
B
C
D
E
F
Bank Select bit
REG[27h] bit 4
Green Look-Up Table
Bank 0
0
1
2
3
4
5
6
7
Bank 1
8
9
A
B
C
D
E
F
Bank Select bit
REG[27h] bit 0
Blue Look-Up Table
Bank 0
0
1
2
3
Bank 1
4
5
6
7
Bank 2
8
9
A
B
Bank 3
C
D
E
F
Bank Select bits [1:0]
REG[27h] bits [3:2]
–
256-Level Color Mode Look-Up Table Architecture
Selected Bank
0
000
001
010
Bank
011
100
Select
101
Logic
110
111
1
Selected Bank
0
000
001
010
Bank
011
100
Select
101
Logic
110
111
1
00
Selected Bank
01
Bank
Select
Logic
10
11
Epson Research and Development
Vancouver Design Center
Entry
4-bit Red data output
Select
Logic
Entry
4-bit Green data output
Select
Logic
00
Entry
4-bit Blue data output
01
Select
10
Logic
11
Hardware Functional Specification
Issue Date: 01/11/06