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參數(shù)資料
| 型號： | LM1246NA |
| 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(nèi)置 |
| 文件頁數(shù)： | 33/51頁 |
| 文件大?。?/td> | 2794K |
| 代理商： | LM1246NA |
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Building Display Pages
(Continued)
TABLE 21. Two Byte Communication Mode
ATTRIBUTE Byte
CC[8]
X
0
1
ATT[3:0]
TABLE 22. Sequence of Transmitted Bytes
HALF RANDOM ADDRESS MODE
The Half Random Address mode allows different attribute and character codes to be sent within one transmission in the same
way as the Two Byte Communication mode. The entire 512-character Page ROM is fully accessible in this mode, without the need
to stop and restart transmission. The advantage of Half Random Addressing over the Two Byte mode is that the Page RAM
addresses do not have to be written to in a sequential order. However, the Page RAM addresses cannot be entirely random, as
they must be within one half of the Page RAM. A new transmission must be restarted to switch to another half of the Page RAM.
The Page RAM address is not automatically incremented in this mode. This mode is very useful for modifying character codes
and attributes in the first 256 locations of the Page RAM. The attribute byte is shown in
Table 23. Half Random Address Mode
,
and the sequence of transmitted bytes is shown in
Table 24. Sequence of Transmitted Bytes
. Either another LSB address &
attribute & character code or a STOP must follow after each character code.
TABLE 23. Half Random Address Mode
ATTRIBUTE Byte
CC[8]
X
1
0
ATT[3:0]
TABLE 24. Sequence of Transmitted Bytes
FULL RANDOM ADDRESS MODE
The Full RandomAddress mode is very similar to the Half RandomAddress mode. However, the advantage is that the Page RAM
addresses can now be entirely random. There is no longer a restriction to only one half of the Page RAM. The Page RAM address
is not automatically incremented in this mode. This is very useful for modifying character codes and attributes anywhere in the
Page RAM without starting a new transmission sequence. The Full Random Address mode is the most flexible mode of
transmission. The attribute byte is shown in
Table 25. Full Random Address Mode
, and the sequence of transmitted bytes is
shown in
Table 26. Sequence of Transmitted Bytes
. Either another LSB address & MSB address & attribute & character code or
a STOP must follow after each character code.
TABLE 25. Full Random Address Mode
ATTRIBUTE Byte
CC[8]
X
1
1
ATT[3:0]
TABLE 26. Sequence of Transmitted Bytes
Control Register Definitions
OSD INTERFACE REGISTERS
Frame Control Register 1:
FRMCTRL1 (0x8400)
Fade
i/o
trans
FEN
TD
autosize
ASZEN
clear
CDPR
win2
D2E
win1
D1E
OSD
OsE
HTD
L
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相關(guān)代理商/技術(shù)參數(shù) |
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| LM1247 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs |
| LM1247AAG/NA | 功能描述:IC PREAMP CMOS 150MHZ 24DIP RoHS:否 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標準包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| LM1247DMC/NA | 制造商:Texas Instruments 功能描述: |
| LM124A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low Power Quad Operational Amplifiers |
| LM124AD | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW POWER QUAD OPERATIONAL AMPLIFIERS |
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