參數(shù)資料
型號(hào)： LM1247
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(gè)字符OSD光盤，512個(gè)字符RAM和4 DAC的內(nèi)置
文件頁(yè)數(shù)： 28/48頁(yè)
文件大?。?/td> 3141K
代理商： LM1247
Building Display Pages
(Continued)
Notes:
The black background is Color 0 and the gray foreground is Color 1 which we will store in two-color attribute location 5 at
0x8454–0x8457.
The Enhanced Feature portion will be set to Normal (no blinking, shadowing or button boxes, etc.)
The character codes for “A”, “B”, etc. are from bank 4 of the sample font shown in
Figure 29
through
Figure 36
.
For this example, bank 4 is selected by Bank Select Register 0, and therefore the two upper bits of the character codes are
both 0.
The data shown in
Table 18
is sent to the LM1247 in two transmissions, one for the attribute and one for the Page data. Also,
additional data will need to be sent to position the OSD window and turn it on.
Every line must begin with an AC and an SL code. The first location addressed by the Window 1 Start Address register must
always be contain the SL for the first line of display window
#
1.
Every line except the last line of a display window must end with an EOL code. The character immediately after an EOL is
always the SL value for the next line, unless the window contains just one line.
The last code in a display window must be an EOS character. The EOS must NOT follow an EOL character.
The attributes that are associated with EOL and EOS characters are not used, so it is most efficient just to allow them to be
the same value as the attribute associated with the previous display characters.
See the Microcontroller Interface Section for I
2
C compatible start, stop and addressing information.
TABLE 18. Example 1 Data Transmissions
Data Sent
Description
RAM Address
I
2
C start condition
LM1247 Slave Write Address
Two-color attribute location 5 address LSB
Two-color attribute location 5 address MSB
Attribute Byte 1 of 4
Attribute Byte 2 of 4
Attribute Byte 3 of 4
Attribute Byte 4 of 4
I
2
C stop condition
0xBA
0x54
0x84
0x00
0xDA
0x02
0x00
Background (Color 0): Red = 000b, Green = 000b and
Blue = 000b.
Foreground (Color 1): Red = 101b, Green = 101b, Blue
= 101b, and Enhanced Feature = 0000b.
8454
8455
8456
8457
I
2
C start condition
LM1247 Slave Write Address
Address LSB
Address MSB
Use Attribute 5 for the following characters
Skip 0 lines code
Character “A”
Character “B”
0xBA
0x00
0x80
0x05
0x00
0x02
0x03
8000
8001
8002
20048440
FIGURE 25. Example 1 OSD
L
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28
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，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:
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LM124AD 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW POWER QUAD OPERATIONAL AMPLIFIERS
LM124ADR 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUADRUPLE OPERATIONAL AMPLIFIERS
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