Table 56. Recommended User Settings for PAL (see Figure 26)
Register
0x31
0x32
0x33
0x34
0x35
0x36
0x37
0xE8
0xE9
0xEA
NFTOGSIGN NTSC Field Toggle Sign, Address 0xE7[5]
Setting NFTOGSIGN to 0 delays the field transition. Set for
user manual programming.
Setting NFTOGSIGN to 1 (default) advances the field
transition. Not recommended for user programming.
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1
NFTOGSIGN
ADVANCE TOGGLE OF
FIELD BY NFTOG[4:0]
NOT VALID FOR USER
PROGRAMMING
ODD FIELD?
YES
NFTOGDELO
1
0
ADDITIONAL
DELAY BY
1 LINE
FIELD
TOGGLE
Figure 24. NTSC Field Toggle
Register Name
Vsync Field Control 1
Vsync Field Control 2
Vsync Field Control 3
Hsync Pos. Control 1
Hsync Pos. Control 2
Hsync Pos. Control 3
Polarity
PAL_V_Bit_Beg
PAL_V_Bit_End
PAL_F_Bit_Tog
Rev. B | Page 43 of 100
0
DELAY TOGGLE OF
FIELD BY NFTOG[4:0]
NO
NFTOGDELE
0
1
ADDITIONAL
DELAY BY
1 LINE
Write
0x1A
0x81
0x84
0x00
0x00
0x7D
0xA1
0x41
0x84
0x06
NFTOG[4:0] NTSC Field Toggle, Address 0xE7[4:0]
The default value of NFTOG is 00011, indicating the NTSC
field toggle position.
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.
ADV7181B
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