Epson S1D13504 ユーザーズマニュアル
Page 20
Epson Research and Development
Vancouver Design Center
S1D13504
Programming Notes and Examples
X19A-G-002-07
Issue Date: 01/02/01
This recommended palette assumes that you are using only bank 0 of the three color components.
By programming in the above fashion the following colors will result:
By programming in the above fashion the following colors will result:
15 bpp Color
Since the Look-Up Table is bypassed in this mode, the LUT programming is unimportant. The
colors on the display are derived from only the top 4 bits of each color combination. Resulting in a
maximum of 2
colors on the display are derived from only the top 4 bits of each color combination. Resulting in a
maximum of 2
12
=4096 colors.
16 bpp Color
Since the Look-Up Table is bypassed in this mode, the LUT programming is unimportant. The
colors on the display are derived from only the top 4 bits of each color combination. Resulting in a
maximum of 2
colors on the display are derived from only the top 4 bits of each color combination. Resulting in a
maximum of 2
12
=4096 colors.
Gray Shade Modes
In gray shade mode, the S1D13504 treats the Green LUT as a 16 position, 4 bit wide monochrome
LUT. Depending on the selected pixel size, this LUT will provide from 1 to 4 banks.
LUT. Depending on the selected pixel size, this LUT will provide from 1 to 4 banks.
1 bpp Gray Shade
The S1D13504 has no true Black-and-White mode. 1 bpp Gray consists of a single bank of two
entries. For Black-and-White mode, the LUT entry must be programmed as such:
entries. For Black-and-White mode, the LUT entry must be programmed as such:
.
Table 3-12: Examples of 256 Pixel Colors Using Linear LUT
Pixel Value
(binary)
Color
Pixel Value
(binary)
Color
000 000 00
black
000 000 00
black
000 000 10
dark blue
000 000 11
bright blue
000 100 00
dark green
000 111 00
bright green
000 100 10
dark cyan
000 111 11
bright cyan
100 000 00
dark red
111 000 00
bright red
100 000 10
dark magenta
111 000 11
bright magenta
100 100 00
dark yellow
111 111 00
bright yellow
100 100 10
gray
111 111 11
white
Table 3-13: Recommended LUT Values for 1 bpp Gray Shades
Index
(hex)
Look-Up Table
Data
(hex)
00
00
01
0F