參數(shù)資料
型號： 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個字符OSD光盤，512個字符RAM和4 DAC的內置
文件頁數(shù)： 34/48頁
文件大?。?/td> 3141K
代理商： LM1247
Control Register Definitions
(Continued)
Bits 6–0
This register determines the duration of the vertical blanking signal in scan lines. When vertical blanking is
enabled, it is recommended that this register be set to a number greater than 0x0A.
Reserved. This bit should be set to zero.
Bit 7
Character Height Register:
CHARHTCTRL (0x8404)
CH[7:0]
Bits 7–0
This register determines the OSD character height as described in the section Constant Character Height
Mechanism. The values of this register is equal to the approximate number of OSD height compensated lines
required on the screen, divided by 4. This value is not exact due to the approximation used in scaling the
character.
Example: If approximately 384 OSD lines are required on the screen (regardless of the number of scan lines)
then the Character Height Control Register is programmed with 81 (0x51).
Enhanced Feature Register 1:
Button Box Highlight Color
BBHLCTRLB1 (0x8406)
Reserved
X
X
BBHLCTRLB0 (0x8405)
Highlight - Red
R[2:0]
Highlight - Green
G[2:0]
Highlight - Blue
B[2:0]
X
X
X
X
X
Bits 8–0
Bits 15–9
These determine the button box highlight color.
Reserved. These bits should be set to zero.
Enhanced Feature Register 2:
Button Box Lowlight Color
BBLLCTRLB1 (0x8408)
Reserved
X
X
BBLLCTRLB0 (0x8407)
Lowlight - Red
R[2:0]
Lowlight - Green
G[2:0]
Lowlight - Blue
B[2:0]
X
X
X
X
X
Bits 8–0
Bits 15–9
These determine the button box lowlight color.
Reserved. These bits should be set to zero.
Enhanced Feature Register 3:
Heavy Button Box Lowlight/Shading/Shadow
CHSDWCTRLB1 (0x840A)
Reserved
X
X
CHSDWCTRLB0 (0x8409)
Shadow - Red
R[2:0]
Shadow - Green
G[2:0]
Shadow - Blue
B[2:0]
X
X
X
X
X
Bits 8–0
Bits 15–9
These registers determine the heavy button box lowlight, shading or shadow color.
Reserved. These bits should be set to zero.
ROM Signature Control Register:
ROMSIGCTRL (0x840D)
Reserved
X
check
CRS
X
X
X
X
X
X
Bit 0
This controls the calculation of the ROM signature. Setting this bit causes the ROM to be read
sequentially and a 16-bit checksum calculated over the 256 characters. The sum, modulo 65535,
is stored in the ROM Signature Data Register, and this bit is then automatically cleared.
Reserved. These should be set to zero.
Bits 7–1
ROM Signature Data:
ROMSIGDATAB1 (0x840F)
ROMSIGDATAB0 (0x840E)
16 Bit Checksum
CRC[15:0]
Bits 15–0
This is the checksum of the 256 ROM characters truncated to 16 bits (modulo 65535). All devices
with the same masked ROM will have the same checksum.
L
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相關PDF資料
PDF描述
LM1270 Hi-Brite 200 MHz I2C Compatible RGB Image Enhancer with Video Auto Sizing
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LM1270NA Hi-Brite 200 MHz I2C Compatible RGB Image Enhancer with Video Auto Sizing
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相關代理商/技術參數(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:- 產品變化通告:Product Discontinuation 07/Mar/2011 標準包裝:3,000 系列:OMNITUNE™ 類型:調諧器 應用: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 供應商設備封裝: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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