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參數(shù)資料
| 型號(hào)： | LM1247AAG/NA/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數(shù)： | 25/48頁 |
| 文件大小： | 3141K |
| 代理商： | LM1247AAG/NA/NOPB |
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Building Display Pages (Continued)
TABLE 19. Example 2 Data Transmissions (Continued)
Data Sent
Description
RAM Address
0x80
Address MSB
0x00
Use Attribute 0 for the “D”
0xC5
Character “D”
0x8006
I
2C stop condition
I
2C start condition
0xBA
LM1247 Slave Write Address
0x07
Address LSB
0x80
Address MSB
0x01
Use Attribute 1 for the “E”
0xC6
Character “E”
0x8007
I
2C stop condition
I
2C start condition
0xBA
LM1247 Slave Write Address
0x08
Address LSB
0x80
Address MSB
0x02
Use Attribute 2 for the “F”
0xC7
Character “F”
0x8008
0x01
End-of-Line (EOL) Command
0x8009
0x00
End-of-Screen (EOS) Command
0x800A
I
2C stop condition
EXAMPLE 3
A blue message on a yellow background is to be displayed which has two lines of different lengths. Three transparent skipped
lines are required between the character lines. Again, we will use 2-color characters. This is shown in Figure 27.
Notes:
The character codes used are from bank 4 of the sample font shown in Figure 29 through Figure 36. The bank select settings
from Example 1 will be used.
In order to center the first line with the second, two transparent blanks will begin the first line.
The transparent skip lines and blank characters are obtained by using attribute 0 for the SL and the two blanks, and setting
bit 4 of the Frame Control Register 1 to 0. (See Control Register Definitions section).
If instead we used attributes 8 and 9 for this example, the black would not be transparent, since transparency only operates
on black colors in the first 8 attributes.
The data shown in Table 20 is sent to the LM1247 in two I
2C transmissions.
20048442
FIGURE 27. Example 3 OSD
LM1247
www.national.com
31
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM1253AAE/NA | ON-SCREEN DISPLAY IC, PDIP28 |
| LM1267NA/NOPB | 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24 |
| LM1269NA/NOPB | 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24 |
| LM1276AAA/NA | 1 CHANNEL, VIDEO PREAMPLIFIER, PDIP28 |
| LM1279AN/NOPB | 3 CHANNEL, VIDEO AMPLIFIER, PDIP20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| LM124ADR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUADRUPLE OPERATIONAL AMPLIFIERS |
| LM124ADT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
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