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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 |
| 文件頁數(shù)： | 35/48頁 |
| 文件大?。?/td> | 3141K |
| 代理商： | LM1247 |
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Control Register Definitions
(Continued)
Display Window 1 Horizontal Start Position:
HSTRT1 (0x8410)
Window 1 Horizontal Start Position
1H[7:0]
Bits 7–0
There are two possible OSD windows which can be displayed simultaneously or individually. This
register determines the horizontal start position of Window 1 in OSD pixels (not video signal
pixels). The actual position, to the right of the horizontal flyback pulse, is determined by multiplying
this register value by 4 and adding 30. Due to pipeline delays, the first usable start location is
approximately 42 OSD pixels following the horizontal flyback time. For this reason, we recommend
this register be programmed with a number larger than 2, otherwise improper operation may result.
Display Window 1 Vertical Start Position:
VSTRT1 (0x8411)
Window 1 Vertical Start Position
1V[7:0]
Bits 7–0
This register determines the Vertical start position of the Window 1 in constant-height character
lines (not video scan lines). The actual position is determined by multiplying this register value by
2. (Note: each character line is treated as a single auto-height character pixel line, so multiple scan
lines may actually be displayed in order to maintain accurate position relative to the OSD character
cell size. See the Constant Character Height Mechanism section.) This register should be set so
the entire OSD window is within the active video.
Display Window 1 Start Address:
W1STRTADRH (0x8413)
Reserved
X
X
W1STRTADRL (0x8412)
Window 1 Start Address
1AD[8:0]
X
X
X
X
X
Bits 8–0
This register determines the starting address of Display Window 1 in the Display Page RAM. The
power-on default of 0x00 starts Window 1 at the beginning of the Page Ram (0x8000). This
register is new for the LM1247 and allows Window 1 to start anywhere in the Page RAM rather
than just at 0x8000. Note that the address this points to in Page RAM must always contain the SL
code for the first line of Window 1.
These bits are reserved and should be set to zero.
Bits 15–9
Display Window 1 Column Width:
COLWIDTH1B3 (0x8417)
COLWIDTH1B2 (0x8416)
Window 1 Column Width - High Bytes
COL[31:16]
COLWIDTH1B1 (0x8415)
COLWIDTH1B0 (0x8414)
Window 1 Column Width - Low Bytes
COL[15:0]
Bits 31–0
These are the Display Window 1 Column Width 2x Enable Bits. These thirty-two bits correspond to
columns 31–0 of Display Window 1, respectively. A value of zero indicates the column will have
normal width (12 pixels). A “1” indicates the column will be twice as wide as normal (24 pixels).
For the double wide case, each Character Font pixel location will be displayed twice, in two
consecutive horizontal pixel locations. The user should note that if more than 32 display characters
are programmed to reside on a line, then all display characters after the first thirty-two will have
normal width (12 pixels).
L
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| LM1270NA | Hi-Brite 200 MHz I2C Compatible RGB Image Enhancer with Video Auto Sizing |
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| LM1279N | 110 MHz RGB Video Amplifier System with OSD |
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: |
| 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 |
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