MTV021 ETC-unknow, MTV021 Datasheet - Page 8

• Manufacturer Part Number: MTV021
• Description: Enhanced Super On-screen Display
• Manufacturer: ETC-unknow

CHS - Define double height character to the respective row.
CWS - Define double width character to the respective row.
3.7 Character ROM
MTV021 character ROM contains 272 built-in characters and symbols including 256 standard fonts and 16
multi-color fonts. The 256 standard fonts are located from address 0 to 255. And the 16 multi-color fonts are
located from address 240 to 255 while CFONT bit is set to “1”. Each character and symbol consists of 12x18
dots matrix. The detail pattern structures for each character and symbols are shown in “CHARACTERS AND
SYMBOLS PATTERN” on page 17.
3.8 Multi-Color Font
The color fonts comprises three different R, G, B fonts. When the code of color font is accessed, the separate
R/G/B dot pattern is output to corresponding R/G/B output. See Figure for the sample displayed color font.
Note: No black color can defined in color font, black window underline the color font can make the dots
become black in color. The detail pattern structures for each character and symbols are shown in “CHARAC-
TERS AND SYMBOLS PATTERN” on page 17.
3.9 Luminance & border generator
There are 2 shift registers included in the design which can shift out of luminance and border dots to color
encoder. The bordering and shadowing feature is configured in this block. For bordering effect, the character
will be enveloped with blackedge on four sides. For shadowing effect, the character is enveloped with
blackedge for right and bottom sides only.
TABLE 4. The Multi-Color Font Color Selection
Background Color
Magent
Yellow
Green
White
Cyan
Blue
Red
R
MYSON
TECHNOLOGY
G
R
0
0
0
0
1
1
1
1
FIGURE 5. Example of Multi-Color Font
G
B
0
0
1
1
0
0
1
1
B
0
1
0
1
0
1
0
1
8/17
MTV021 Revision 5.0 6/29/1999
Magent
Green
Cyan
Blue
MTV021