Page 122 Epson Research and Development
Vancouver Design Center
S1D13504 Hardware Functional Specification
X19A-A-002-18 Issue Date: 01/01/30
12 Look-Up Table Architecture
The following depictions 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.
12.1 Gray Shade Display Modes
1 Bit-Per-Pixel Mode
Figure 12-1: 1 Bit-Per-Pixel
–
2-Level Gray-Shade Mode Look-Up Table Architecture
Table 12-1: Look-Up Table Configurations
Display Mode 4-Bit Wide Look-Up Table
RED GREEN BLUE
Black & White
1 bank of 2 entries
4-level gray 4 banks of 4 entries
16-level gray 1 bank of 16 entries
2 color 1 bank of 2 entries 1 bank of 2 entries 1 bank of 2 entries
4 color 4 banks of 4 entries 4 banks of 4 entries 4 banks of 4 entries
16 color 1 bank of 16 entries 1 bank of 16 entries 1 bank of 16 entries
256 color 2 banks of 8 entries 2 banks of 8 entries 4 banks of 4 entries
Indicates the look-up table is not used for that display mode
Green Look-Up Table
0
1
1-bit pixel data
4-bit display data output
Entry
Select
Logic
0
1
