Epson S1D13504 ユーザーズマニュアル
Epson Research and Development
Page 123
Vancouver Design Center
Hardware Functional Specification
S1D13504
Issue Date: 01/01/30
X19A-A-002-18
2 Bit-Per-Pixel Mode
Figure 12-2: 2 Bit-Per-Pixel
–
4-Level Gray-Shade Mode Look-Up Table Architecture
4 Bit-Per-Pixel Mode
Figure 12-3: 4 Bit-Per-Pixel
–
16-Level Gray-Shade Mode Look-Up Table Architecture
Note: the above depiction is intended to show the display data output path only. The CPU R/W access to the individual
Look-Up Tables is not affected by the various “banking” configurations.
Look-Up Tables is not affected by the various “banking” configurations.
Green Look-Up Table
0
1
2
3
2
3
2-bit pixel data
4
5
6
7
5
6
7
8
9
A
B
9
A
B
C
D
E
F
E
F
Bank 0
Bank 1
Bank 2
Bank 3
Bank Select bits [1:0]
REG[27h] bits [1:0]
4-bit display data output
Bank
Select
Logic
Entry
Select
Logic
Select
Logic
00
01
10
11
00
01
10
11
01
10
11
Selected Bank
4-bit pixel data
4-bit display data output
Green Look-Up Table
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Entry
Select
Logic
0000
0001
0010
0011
0100
0101
0110
0111
1000
0001
0010
0011
0100
0101
0110
0111
1000
1010
1011
1011
1001
1100
1101
1110
1111
1101
1110
1111