Epson Research and Development Page 125

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Hardware Functional Specification S1D13504
Issue Date: 01/01/30 X19A-A-002-18
2 Bit-Per-Pixel Color Mode

Figure 12-5: 2 Bit-Per-Pixel – 4-Level Color Mode Look-Up Table Architecture

Red Look-Up Table

0
1
2
3
2-bit pixel data
4
5
6
7
8
9
A
B
C
D
E
F
Bank 0
Bank 1
Bank 2
Bank 3
Bank Select bits [1:0]
REG[27h] bits [5:4]
4-bit Red data output
Bank
Select
Logic
Entry
Select
Logic
00
01
10
11
00
01
10
11
Selected Bank

Green Look-Up Table

0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Bank 0
Bank 1
Bank 2
Bank 3
Bank Select bits [1:0]
REG[27h] bits [1:0]
4-bit Green data output
Bank
Select
Logic
Entry
Select
Logic
00
01
10
11
00
01
10
11
Selected Bank

Blue Look-Up Table

0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Bank 0
Bank 1
Bank 2
Bank 3
Bank Select bits [1:0]
REG[27h] bits [3:2]
4-bit Blue data output
Bank
Select
Logic
Entry
Select
Logic
00
01
10
11
00
01
10
11
Selected Bank