Epson Research and Development

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11 Look-Up Table Architecture

The following figures are intended to show the display data output path only.

Note

When Video Data Invert is enabled the video data is inverted after the Look-Up Table.

11.1 Monochrome Modes

The green Look-Up Table (LUT) is used for all monochrome modes.

1 Bit-per-pixel Monochrome mode

Green Look-Up Table 256x4

 

 

00

 

 

 

 

 

0

4-bit Gray Data

 

 

 

 

 

 

 

 

 

 

01

 

 

 

 

 

1

 

 

 

 

 

 

 

02

 

 

 

 

 

 

 

FC

FD

FE

FF

1bit-per-pixel data from Display Buffer

= unused Look-Up Table entries

Figure 11-1: 1 Bit-per-pixel Monochrome Mode Data Output Path

2 Bit-per-pixel Monochrome Mode

Green Look-Up Table 256x4

 

 

 

00

 

 

 

 

 

 

00

4-bit Gray Data

01

 

 

 

 

 

 

01

 

 

 

 

 

 

 

02

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

03

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

04

 

 

 

 

 

 

 

FC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FD

 

 

 

 

 

 

 

 

 

FE

 

 

 

 

 

 

 

 

 

FF

 

 

 

 

 

 

 

 

 

2bit-per-pixel data from Display Buffer

= unused Look-Up Table entries

Figure 11-2: 2 Bit-per-pixel Monochrome Mode Data Output Path

Hardware Functional Specification

S1D13705

Issue Date: 02/02/01

X27A-A-001-10

Page 77
Image 77
Epson S1D13705 Look-Up Table Architecture, Monochrome Modes, Green Look-Up Table LUT is used for all monochrome modes