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參數(shù)資料
| 型號： | KS0119 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | Multimedia Video(帶傳統(tǒng)RAM-DAC功能的NTSC編碼器) |
| 中文描述： | 多媒體視頻（帶傳統(tǒng)的RAM - DAC的功能的NTSC制式編碼器） |
| 文件頁數(shù)： | 21/47頁 |
| 文件大?。?/td> | 311K |
| 代理商： | KS0119 |
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KS0119 Data Sheet
MULTIMEDIA VIDEO
ELECTRONICS
PAGE 21 OF 50
070595
6. COLOR PALETTE RAM, OVERLAY LOOKUP TABLE, AND PIXEL MASK REGISTER
The KS0119 contains a Color Palette RAM, an Overlay Lookup Table, and a Pixel Mask Register. They can be
accessed through the host interface.
6.1. Accessing the Color Palette RAM
The Color Palette RAM is organized as 3 256x8 arrays. From the programmer’s point of view, there are 256 entries;
each entry has 3 bytes. To write to the Color Palette RAM, the entry offset is written to the Color Palette Write Index
register, then three bytes, in the order of R, G, and B, are written to the Color Palette Data register. If consecutive
entries are to be written, only the first offset address needs to be written to the Color Palette Write Index register. It
is important to note that writing to the Color Palette Data register should always consist of multiples of three bytes.
Unpredictable result will occur if this is not strictly followed.
Reading the Color Palette RAM is similar to writing the Color Palette RAM except the entry offset is written to the
Color Palette Read Index register.
The Color Palette RAM is located at the center of the RGB path. There is no bypass path. Consequently, for 24-bit
true color inputs even though the translations are not required the Color Palette RAM still needs to be loaded.
6.2. 6-Bit Color Palette Mode
The KS0119 also supports 6-bit color palette mode. When this mode is selected by setting
Command
Register
bit
3 to 0, only the 6 LSB’s for each color entry are loaded into the corresponding color palette register. Internally, the
6 LSB’s are shifted to the MSB positions with the 2 LSB’s padded with 0’s. When reading from the palette RAM, the
two MSB’s must be ignored.
6.3. High Color and Pseudo Color Input Lookup Address.
The high color and pseudo color inputs pass through a formatter, which expands the inputs to a full 24 bits according
to Table 7. For inputs with R, G, and B components less than 8 bits, the LSB’s are padded with 0’s. The outputs of
the formatter, after passing through the pixel mask filter, become the color palette table addresses.
6.4. Overlay Lookup Table
Four overlay input bits address the Overlay Lookup Table. If the overlay input is non-zero, overlay data will be
displayed. The Overlay Look Up Table contains 15 entries, and each entry has three bytes, in the order of R, G, and
B. The entry offset starts from 1 instead of 0. The access method for the Overlay Lookup Table is the same as that
for the Color Palette RAM.
Table 7: RGB Input Formatter Conversion Table
Mode
Video Input
<msb..lsb>
Color Lookup Table Input
<msb..lsb>
Byte 2
Byte 1
Byte 0
1
R<7:0>:G<7:0>:B<7:0>
R<7:0>
G<7:0>
B<7:0>
2
R<4:0>:G<5:0>:B<4:0>
R<4:0>000
G<5:0>00
B<4:0>000
3
R<5:0>:G<5:0>:B<3:0>
R<5:0>00
G<5:0>00
B<3:0>0000
4
R<4:0>:G<4:0>:B<4:0>
R<4:0>000
G<4:0>000
B<4:0>000
5 and 6
P<7:0>
P<7:0>
P<7:0>
P<7:0>
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| KS0122 | MULTISTANDARD VIDEO DECODER |
| KS0123 | DIGITAL VIDEO ENCODER |
| KS0125 | Multi-standard Video Encoder(多標準視頻編碼器) |
| KS0164 | Multimedia Audio(波表合成芯片) |
| KS0165 | Multimedia Audio(波表合成芯片) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KS0122 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MULTISTANDARD VIDEO DECODER |
| KS0123 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:DIGITAL VIDEO ENCODER |
| KS0127 | 制造商:Samsung SDI 功能描述:Digital video encoder & decoder |
| KS0127B | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MULTISTANDARD VIDEO DECODER/SCALER |
| KS-01Q-01 | 功能描述:SWITCH PUSH SPST-NO 0.01A 35V RoHS:是 類別:開關(guān) >> 按鈕 系列:KS, LAMB 標準包裝:1 系列:A16 類型:標準，發(fā)光式 電路:雙刀雙擲 開關(guān)功能:開-瞬時 額定電流:5A（AC） 額定電壓 - AC:125V 額定電壓 - DC:- 觸動器類型:方形，按鈕 顏色 - 致動器/蓋:黃 發(fā)光類型，顏色:LED，黃 發(fā)光電壓:12 VDC 安裝類型:前面板安裝 端接類型:焊接，快速連接 - 0.110"（2.8mm） 防護等級:IP65 - 防塵/防油/防水 特點:- 面板切口尺寸:圓形 - 直徑 16.00mm 包裝:散裝 工作溫度:-10°C ~ 55°C 機械壽命:2,000,000 次循環(huán) 電氣壽命:100,000 次循環(huán) 其它名稱:A165LAYM12D2 |
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