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Epson Research and Development
Vancouver Design Center
SED1352
Programming Notes and Examples
X16-BG-007-04
Issue Date: 98/10/08
Figure 3: 4-Level Gray Shade Mode Look-Up Table Architecture
0
1
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3
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b3 b2 b1 b0
I
1
I
0
Output Value to
Gray Scale Engine
4 LUTs of 4 Entries x 4 Bits
Bank Bits
B
1
, B
0
00
01
10
11
I
1
I
0
I
1
I
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I
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I
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I
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I
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LUT
Index
0
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2
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9
A
B
C
D
E
F
Display Data
(2 Bits/Pixel)
Palette 0
Palette 1
Palette 2
Palette 3