Philips S1D13505 Manual Do Utilizador

Epson Research and Development

Page 23

Vancouver Design Center

Programming Notes and Examples

S1D13505

Issue Date: 01/02/05

X23A-G-003-07

4 bpp color

When the S1D13505 is configured for 4 bpp color mode the first 16 entries in the LUT are
used.

Each byte in the display buffer contains two adjacent pixels. The upper and lower nibbles
of the byte are used as indices into the LUT.

The following table shows LUT values that will simulate those of a VGA operating in 16
color mode.

Table 4-4: Suggested LUT Values to Simulate VGA Default 16 Color Palette

Index

Red

Green

Blue

...

= Indicates unused entries in the LUT