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參數(shù)資料
| 型號： | LM1276AAA |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs |
| 中文描述： | 150 MHz的I2C兼容的RGB前置放大器512個字符OSD光盤，512個字符RAM和4 DAC的內置 |
| 文件頁數(shù)： | 47/50頁 |
| 文件大?。?/td> | 2597K |
| 代理商： | LM1276AAA |
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Attribute Table and Enhanced
Features
(Continued)
Display Window 1 to Display Window 2 Spacing
Please refer to the LM1247 datasheet for details.
Evaluation Character Fonts
The character font for evaluation of the LM1276 is shown in
Figure 19
through
Figure 26
, where each represents one of
the 8 available ROM banks. Each bank is shown with in-
creasing character address going from upper left to lower
right. The actual font will depend on customer customization
requirements.
Note that the first two character codes of the two-color font in
ROM bank 4 (0x00 and 0x01) are carried over from the
LM1237 ROM where they were reserved for the End-Of-
Screen (EOS) and End-Of-Line (EOL) codes respectively.
In the case of the LM1276, these two locations can be used
for displayable characters as long as they are not needed
when this bank is addressed from Bank Select Register 0. If
it is addressed from Bank Select Registers 1, 2 or 3, then
these two lower characters will be usable. Please see the
section “END-OF-LINE and END-OF-SCREEN CODES”.
Similarly, the first two characters in any bank, which is ad-
dressed from Bank Select Register 0 will not be usable since
those addresses will be interpreted as the EOL and EOS
codes.
20096944
FIGURE 19. ROM Bank 0 Two Color Character Font
20096945
FIGURE 20. ROM Bank 1 Two Color Character Font
L
www.national.com
47
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相關代理商/技術參數(shù) |
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| LM1279 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:110 MHz RGB Video Amplifier System with OSD |
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| LM1279DL WAF | 制造商:Texas Instruments 功能描述: |
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