參數(shù)資料
型號: ADV7183B
廠商: Analog Devices, Inc.
英文描述: Multiformat SDTV Video Decoder
中文描述: 標清多格式視頻解碼器
文件頁數(shù): 44/100頁
文件大?。?/td> 844K
代理商: ADV7183B
ADV7183B
NFTOG[4:0] NTSC Field Toggle, Address 0xE7[4:0]
The default value of NFTOG is 00011, indicating the NTSC
Field toggle position.
Rev. B | Page 44 of 100
For all NTSC/PAL Field timing controls, both the F bit in the
AV code and the Field signal on the FIELD pin are modified.
Table 57. Recommended User Settings for PAL (see
219H
Figure 27)
Register
Register Name
0x31
Vsync Field Control 1
0x32
Vsync Field Control 2
0x33
Vsync Field Control 3
0x34
Hsync Pos. Control 1
0x35
Hsync Pos. Control 2
0x36
Hsync Pos. Control 3
0x37
Polarity
0xE8
PAL_V_Bit_Beg
0xE9
PAL_V_Bit_End
0xEA
PAL_F_Bit_Tog
Write
0x1A
0x81
0x84
0x00
0x00
0x7D
0x29
0x41
0x84
0x06
FIELD 1
OUTPUT
VIDEO
H
V
F
622
623
624
625
1
2
3
4
5
6
7
8
9
10
22
23
24
PVBEG[4:0] = 0x5
PVEND[4:0] = 0x4
PFTOG[4:0] = 0x3
FIELD 2
314
OUTPUT
VIDEO
H
V
F
PVBEG[4:0] = 0x5
PVEND[4:0] = 0x4
PFTOG[4:0] = 0x3
Figure 26. PAL Default (BT.656). The Polarity of H, V, and F is Embedded in the Data.
FIELD 1
310
311
312
313
315
316
317
318
319
320
321
322
335
336
337
0
622
623
624
625
1
2
3
4
5
6
7
8
9
10
11
23
24
310
311
312
313
314
315
316
317
318
319
320
321
322
323
336
337
PVBEG[4:0] = 0x1
PVEND[4:0] = 0x4
PFTOG[4:0] = 0x6
FIELD 2
OUTPUT
VIDEO
FIELD
OUTPUT
HS
OUTPUT
VS
OUTPUT
OUTPUT
VIDEO
FIELD
OUTPUT
HS
OUTPUT
VS
OUTPUT
PVBEG[4:0] = 0x1
PVEND[4:0] = 0x4
PFTOG[4:0] = 0x6
0
Figure 27. PAL Typical Vsync/Field Positions Using Register Writes in
220H
Table 57
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