User`s manual

3: DISPLAY BUFFER
2-10 EPSON S1D13504 PROGRAMMING NOTES
AND EXAMPLES (S19A-G-002-06)
The following table shows the recommended values for obtaining a Black-and-White mode while on
a color panel.
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.
4 bpp Color
In 4 bpp color mode, the LUT is limited to a single 16 entry bank per color. The LUT bank select
bits have no effect in this mode.
The following table is a recommended set of data values to simulate the 16 colors in a VGA. The
second recommendation for this mode is to program the register values to data values equalling the
register number. (i.e. R[0] = 0, G[0]=0, B[0]=0, R[1]=1 ... R[F]=0Fh ...)
8 bpp Color
In 8 bpp color mode, pixel bits [7:5] represent the red LUT index, bits [4:2] represent the green LUT
index, and bits [1:0] represent the blue LUT index. It is recommended that the three LUTs are pro-
grammed according to the following format:
Table 3-8 Recommended LUT Values for 1 bpp Color Mode
Address Red Green Blue Address Red Green Blue
00 00 00 00 08 00 00 00
01 0F 0F 0F 09 00 00 00
02 00 00 00 0A 00 00 00
03 00 00 00 0B 00 00 00
04 00 00 00 0C 00 00 00
05 00 00 00 0D 00 00 00
06 00 00 00 0E 00 00 00
07 00 00 00 0F 00 00 00
Table 3-9 Recommended LUT Values for 2 bpp Color Mode
Address Red Green Blue Address Red Green Blue
00 00 00 00 08 07 07 07
01 03 03 03 09 05 05 05
02 05 05 05 0A 03 03 03
03 07 07 07 0B 00 00 00
04 00 00 00 0C 0F 0F 0F
05 0A 0A 0A 0D 0D 0D 0D
06 0D 0D 0D 0E 0A 0A 0A
07 0F 0F 0F 0F 00 00 00
Table 3-10 Recommended LUT Values to Simulate VGA Default 16 Color Palette
Address Red Green Blue Address Red Green Blue
00 00 00 00 08 00 00 00
01 00 00 0A 09 00 00 0F
02 00 0A 00 0A 00 0F 00
03 00 0A 0A 0B 00 0F 0F
04 0A 00 00 0C 0F 00 00
05 0A 00 0A 0D 0F 00 0F
06 0A 0A 00 0E 0F 0F 00
07 0A 0A 0A 0F 0F 0F 0F
Table 3-11 Recommended LUT Values For 8 bpp Color Mode
Address Red Green Blue
00 00 00 00
01 03 03 05
02 05 05 0A
03 07 07 0F
04 09 09 bank 1
05 0B 0B bank 1
06 0D 0D bank 1
07 0F 0F bank 1