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參數(shù)資料
| 型號： | LM1236 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 150 MHz I2C Compatible RGB Preamplifier with Internal 254 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254字符OSD光盤，512個字符RAM和4 DAC的內(nèi)置 |
| 文件頁數(shù)： | 34/43頁 |
| 文件大?。?/td> | 1898K |
| 代理商： | LM1236 |
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Control Register Definitions
(Continued)
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 254 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 254 ROM characters truncated to 16 bits (modulo 65535). All devices
with the same masked ROM will have the same checksum.
Display Window 1 Horizontal Start Address:
HSTRT1 (0x8410)
Window 1 Horizontal Start Location
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 Address:
VSTRT1 (0x8411)
Window 1 Vertical Start Address
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
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM1236AAA/NA | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 254 Character OSD ROM, 512 Character RAM and 4 DACs |
| LM1237 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 254 Character OSD and 4 DACs |
| LM1237_04 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 254 Character OSD and 4 DACs |
| LM1237AAF/NA | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 254 Character OSD and 4 DACs |
| LM1237BAAF/NA | 功能描述:IC PREAMP CMOS 150MHZ 24-DIP RoHS:是 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 |
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