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S5D4100X Datasheet(PDF) 34 Page - Samsung semiconductor

Part No. S5D4100X
Description  Digital Interface Including Scaler, Image Enhancement
Download  94 Pages
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Maker  SAMSUNG [Samsung semiconductor]
Homepage  http://www.samsung.com/Products/Semiconductor
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S5D4100X Datasheet(HTML) 34 Page - Samsung semiconductor

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DATASHEET
S5D4100X
34
5.9.8 Multi-Colored Font (MCF) control
OSD displays icons in multi-color. 8 (3-bit) or 4 (2-bit) multi-color fonts are available. Each multi-colored font
consists of 3 colors attribute RAM fonts as shown in the following figure. The three fonts make a multi-colored font
with the OR operation. Accessing a multi-colored font is performed via addressing of the first font.
MCF starts from the point of font number 1 to the point in which Register N_MCF (0x0109[6:0]) becomes tripled
(MCF_SEL = 0) or doubled (MCF_SEL = 1).
If Register N_MCF is 4, font numbers 1 ~ 4 are R, 5 ~ 8 are G, and 9 ~ 12 are B-color fonts. The multi-colored
font can be accessed via addressing of 1~4.
For example, if Register N_MCF is 3, and the display RAM addresses 1, MCF uses 1 for the first font, 4 for the
second font, and 7 for the third font.
A pixel from each of the three fonts make a CHAR part via the OR operation. The three pixels are used as the
selection [2:0] for Registers LUT1~LUT7.
If the pixels are "000", the color of Register LUT0 is recognized as the raster, rather than the color of Register
LUT0, and the attribute of the first font raster color is used. In other words, one of the 16 LUTs can be selected.
If the G/B-color font is accessed instead of MCF R-color font, it is not recognized as MCF, but the Standard Font
(SF) is used.
7
4
1
B
Masked data of mulit-color font : Font Number 1
Displayed font : Font Number 1
1
1
0
LUT4
LUT6
LUT2
LUT3
LUT1
LUT7
Figure 24. OSD Multicolor Font Structure


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