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參數(shù)資料
| 型號： | TVP5147M1IPFPRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP80 |
| 封裝： | PLASTIC, HTQFP-80 |
| 文件頁數(shù)： | 80/108頁 |
| 文件大小： | 937K |
| 代理商： | TVP5147M1IPFPRQ1 |
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www.ti.com
SLES140F – JULY 2005 – REVISED DECEMBER 2010
Table 2-87. VDP TTX Filter and Mask Register
Subaddress
B1h
B2h
B3h
B4h
B5h
B6h
B7h
B8h
B9h
BAh
Default
00h
Subaddress
7
6
5
4
3
2
1
0
B1h
Filter 1 Mask 1
Filter 1 Pattern 1
B2h
Filter 1 Mask 2
Filter 1 Pattern 2
B3h
Filter 1 Mask 3
Filter 1 Pattern 3
B4h
Filter 1 Mask 4
Filter 1 Pattern 4
B5h
Filter 1 Mask 5
Filter 1 Pattern 5
B6h
Filter 2 Mask 1
Filter 2 Pattern 1
B7h
Filter 2 Mask 2
Filter 2 Pattern 2
B8h
Filter 2 Mask 3
Filter 2 Pattern 3
B9h
Filter 2 Mask 4
Filter 2 Pattern 4
BAh
Filter 2 Mask 5
Filter 2 Pattern 5
For an NABTS system, the packet prefix consists of five bytes. Each byte contains 4 data bits (D[3:0]) interlaced with 4 Hamming protection
bits (H[3:0]):
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
D[3]
H[3]
D[2]
H[2]
D[1]
H[1]
D[0]
H[0]
Only the data portion D[3:0] from each byte is applied to a teletext filter function with corresponding pattern bits P[3:0] and mask bits M[3:0].
The filter ignores hamming protection bits.
For a WST system (PAL or NTSC), the packet prefix consists of two bytes. The two bytes contain three bits of magazine number (M[2:0])
and five bits of row address (R[4:0]), interlaced with eight Hamming protection bits H[7:0]:
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R[0]
H[3]
M[2]
H[2]
M[1]
H[1]
M[0]
H[0]
R[4]
H[7]
R[3]
H[6]
R[2]
H[5]
R[1]
H[4]
The mask bits enable filtering using the corresponding bit in the pattern register. For example, a 1 in the LSB of mask 1 means that the filter
module must compare the LSB of nibble 1 in the pattern register to the first data bit on the transaction. If these match, then a true result is
returned. A 0 in a bit of mask means that the filter module must ignore that data bit of the transaction. If all 0s are programmed in the mask
bits, then the filter matches all patterns returning a true result (default 00h).
Copyright 2005–2010, Texas Instruments Incorporated
Functional Description
73
Product Folder Link(s): TVP5147M1
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TVP5147M1PFP | 功能描述:視頻 IC 10B High Qual S-Chip Dig Vid 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 |
| TVP5147M1PFP | 制造商:Texas Instruments 功能描述:; Resolution (Bits):10; Supply Current:5 |
| TVP5147M1PFP_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:NTSC/PAL/SECAM 2 X 10-Bit Digital Video Decoder With Macrovision Detection, YPbPr Inputs, and 5-Line Comb Filter |
| TVP5147M1PFPG4 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:NTSC/PAL/SECAM 2 X 10-Bit Digital Video Decoder With Macrovision Detection, YPbPr Inputs, and 5-Line Comb Filter |
| TVP5147M1PFPR | 功能描述:視頻 IC 10B Hi Qual Sgl-Chip Dig Vid Dec 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 |
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