Figure 11-6: 4 Bit-Per-Pixel Color Mode Data Output Path; Figure 11-7: 8 Bit-Per-Pixel Color Mode Data Output Path - Epson S1D13505 Technical Manual

Embedded ramdac lcd/crt controller
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Page 132
8 Bit-per-pixel Color Mode
8 bit-per-pixel data
from Image Buffer
15/16 Bit-per-pixel Color Modes
S1D13505
X23A-A-001-14
Red Look-Up Table 256x4
00
01
02
03
04
05
06
07
F8
F9
FA
FB
FC
FD
FE
FF
Green Look-Up Table 256x4
00
01
02
03
04
05
06
07
F8
F9
FA
FB
FC
FD
FE
FF
Blue Look-Up Table 256x4
00
01
02
03
04
05
06
07
F8
F9
FA
FB
FC
FD
FE
FF

Figure 11-7: 8 Bit-per-pixel Color Mode Data Output Path

The LUT is bypassed and the color data is directly mapped for this color mode – See "Display
Configuration" on page 124.
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
4-bit Red Data
1111 1000
1111 1001
1111 1010
1111 1011
1111 1100
1111 1101
1111 1110
1111 1111
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
4-bit Green Data
1111 1000
1111 1001
1111 1010
1111 1011
1111 1100
1111 1101
1111 1110
1111 1111
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
4-bit Blue Data
1111 1000
1111 1001
1111 1010
1111 1011
1111 1100
1111 1101
1111 1110
1111 1111
Epson Research and Development
Vancouver Design Center
Hardware Functional Specification
Issue Date: 01/02/02

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