S1D13704 Epson Electronics America, Inc., S1D13704 Datasheet - Page 79

• Manufacturer Part Number: S1D13704
• Description: LCD Controller
• Manufacturer: Epson Electronics America, Inc.

Epson Research and Development
Vancouver Design Center
11 Look-Up Table Architecture
11.1 Gray Shade Display Modes
2-Level Gray Shade Mode
Hardware Functional Specification
Issue Date: 02/02/01
REG[16h] bits [3:2]
1-bit pixel data
Green Bank Select
Figure 11-1: 2-Level Gray-Shade Mode Look-Up Table Architecture
The following figures are 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.
Display Mode
16-level gray
2-level gray
4-level gray
256 color
16 color
2 color
4 color
Green Look-Up Table
0
1
2
3
6
7
4
5
Table 11-1: Look-Up Table Configurations
Indicates the Look-Up Table is not used for that display mode
1 bank of 16
4 banks of 4
2 banks of 8
4 bank of 2
RED
Bank
Select
Logic
4-bit wide Look-Up Table
1 bank of 16
1 bank of 16
2 banks of 8
4 banks of 2
4 banks of 4
4 banks of 4
4 bank of 2
4-bit display data output
GREEN
See Section 10
2 Gray Data Format:
A0 A1 A2 A3 A4 A5 A6 A7
7
6
5
4 banks of 4
1 bank of 16
4 banks of 4
4
4 bank of 2
BLUE
3
X26A-A-001-06
2
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