Epson S1D13504 ユーザーズマニュアル

Epson Research and Development

Page 19

Vancouver Design Center

Programming Notes and Examples

S1D13504

Issue Date: 01/02/01

X19A-G-002-07

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
programmed according to the following format:

Table 3-10: Recommended LUT Values to Simulate VGA Default 16 Color Palette

Address

Red

Green

Blue

Address

Red

Green

Blue

Table 3-11: Recommended LUT Values For 8 bpp Color Mode

Address

Red

Green

Blue

bank 1