Figure 12-5: 2 Bit-Per-Pixel - 4-Level Color Mode Look-Up Table Architecture - Epson S1D13504 Technical Manual

Color graphics lcd/crt controller
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2 Bit-Per-Pixel Color Mode
2-bit pixel data
S1D13504
X19A-A-002-19
Red 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 [5:4]
Green 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 [1:0]
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]
Figure 12-5: 2 Bit-Per-Pixel
00
Selected Bank
01
Bank
Select
Logic
10
11
00
Selected Bank
01
Bank
Select
Logic
10
11
00
Selected Bank
01
Bank
Select
Logic
10
11
4-Level Color Mode Look-Up Table Architecture
Epson Research and Development
Vancouver Design Center
00
Entry
4-bit Red data output
01
Select
10
Logic
11
00
Entry
4-bit Green data output
01
Select
10
Logic
11
00
Entry
4-bit Blue data output
01
Select
10
Logic
11
Hardware Functional Specification
Issue Date: 01/11/06

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