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參數(shù)資料
| 型號(hào)： | TVP5020CPFP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 顏色信號(hào)轉(zhuǎn)換 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP80 |
| 封裝： | POWERPAD, PLASTIC, HTQFP-80 |
| 文件頁數(shù)： | 71/87頁 |
| 文件大?。?/td> | 394K |
| 代理商： | TVP5020CPFP |
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2.15.34 Sync Pattern Register
VIP address
1A3
VMI address
A3
I2C address
A3
7
6
5
4
3
2
1
0
Framing code[7:0]
NOTE:
The custom sync option is only valid for NABTS or WST messages; closed caption
always uses the EIA standard start bit pattern.
If the custom sync bit is set in the control register, the sync comparator uses the contents of the sync pattern
register as the bit pattern for the teletext framing code. Otherwise, the default sync patterns are used.
Relative to the sync pattern register, incoming bits are shifted in MSB first. To illustrate; the default WST
framing code would be specified as 0xE4 and the default NABTS framing code would be specified as 0xE7
(although the MSB vs LSB is ambiguous for the latter).
2.15.35 Teletext FIFO
VIP address
1B0
VMI address
B0
I2C address
B0
7
6
5
4
3
2
1
0
Teletext data FIFO [7:0]
Reading this location returns 1 byte from the FIFO that stores teletext transactions. If the FIFO is empty, a
read will return the same value as the previous read. The micro must know the number of bytes per
transaction. The transaction length depends on whether the data is NABTS, WST-NTSC, or WST-PAL.
2.15.36 Closed Caption Data
VIP address
1B1 – 1B2
VMI address
B1 – B2
I2C address
B1 – B2
Address
7
6
5
4
3
2
1
0
B1
Odd field closed caption data [7:0]
B2
Even field closed caption data [7:0]
There are two registers reserved for closed-caption data. Since closed-caption data always contains two
bytes per transaction, each register must be read twice. The first read returns the first byte of the message,
the second read returns the second byte. Further reads return the first byte until new data is received.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TVP5020 | COLOR SIGNAL DECODER, PQFP80 |
| TVP5022 | COLOR SIGNAL DECODER, PQFP80 |
| TVP5031PFP | COLOR SIGNAL DECODER, PQFP80 |
| TVP5040CPFP | COLOR SIGNAL DECODER, PQFP80 |
| TVP5040PFP | COLOR SIGNAL DECODER, PQFP80 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TVP5020PFC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| TVP5020TQFP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:NTSC/PAL VIDEO DECODER |
| TVP5021PFP | 功能描述:視頻 IC NTSC/PAL DIGITAL VIDEO DECODER RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TVP5021PFPG4 | 功能描述:視頻 IC NTSC/PAL DIGITAL VIDEO DECODER RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TVP5031 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:NTSC/PAL VIDEO DECODER |
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