SED1354 Datasheet, PDF (158/472 Pages) Epson Company – Color Graphics LCD/CRT Controller

Page 18
Color Modes
Epson Research and Development
Vancouver Design Center
In color mode, the SED1354 supports three, 16 position, 4 bit wide color LUTs (red, green, and
blue). Depending on the selected pixel size, these LUTs will provide from 1 to 4 banks.
1 bpp Color
In 1 bpp color mode, the LUT is limited to a single 2 entry bank per color. The LUT bank select bits
have no effect in this mode.
The following table shows the recommended values for obtaining a Black-and-White mode while
on a color panel.
Address
00
01
02
03
04
05
06
07
Table 3-8: Recommended LUT Values for 1 bpp Color Mode
Red
Green
Blue
00
00
00
0F
0F
0F
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
Address
Red
08
00
09
00
0A
00
0B
00
0C
00
0D
00
0E
00
0F
00
Green
00
00
00
00
00
00
00
00
Blue
00
00
00
00
00
00
00
00
2 bpp Color
In 2 bpp color mode, the 16 LUT entries are divided into four separate 4 entry banks per color.
The following table demonstrates recommended LUT data values which produce Bank 0 = low
intensity, Bank 1 = high intensity, Bank 2 = inverted low intensity, Bank 3 = inverted high intensity.
Address
00
01
02
03
04
05
06
07
Table 3-9: Recommended LUT Values for 2 bpp Color Mode
Red
Green
Blue
00
00
00
03
03
03
05
05
05
07
07
07
00
00
00
0A
0A
0A
0D
0D
0D
0F
0F
0F
Address
Red
08
07
09
05
0A
03
0B
00
0C
0F
0D
0D
0E
0A
0F
00
Green
07
05
03
00
0F
0D
0A
00
Blue
07
05
03
00
0F
0D
0A
00
SED1354
X19A-G-002-06
Programming Notes and Examples
Issue Date: 98/10/28