SED1354 Datasheet, PDF (133/472 Pages) Epson Company – Color Graphics LCD/CRT Controller

Epson Research and Development
Vancouver Design Center
Page 125
2 Bit-Per-Pixel Color Mode
2-bit pixel data
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
00
01
Bank
Select
Logic
10
11
Bank Select bits [1:0]
REG[27h] bits [5:4]
Green Look-Up Table
Bank 0
0
1
2
00
3
Bank 1
4
5
6
01
7
Bank
Bank 2
8
9
A
B
Select
Logic
10
Bank 3
C
D
E
11
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
00
01
Bank
Select
Logic
10
11
Bank Select bits [1:0]
REG[27h] bits [3:2]
Selected Bank
00
01
10
11
Entry
Select
Logic
4-bit Red data output
Selected Bank
00
01
10
11
Entry
Select
Logic
4-bit Green data output
Selected Bank
00
01
10
11
Entry
Select
Logic
4-bit Blue data output
Figure 12-5: 2 Bit-Per-Pixel – 4-Level Color Mode Look-Up Table Architecture
Hardware Functional Specification
Issue Date: 99/05/18
SED1354
X19A-A-002-16