adv7188 Analog Devices, Inc., adv7188 Datasheet - Page 59

• Manufacturer Part Number: adv7188
• Description: Multiformat Sdtv Video Decoder With Fast Switch Overlay Support
• Manufacturer: Analog Devices, Inc.

Table 74. Framing Code Sequence for Different VBI Standards
VBI Standard
TTXT_SYSTEM_A (PAL)
TTXT_SYSTEM_B (PAL)
TTXT_SYSTEM_B (NTSC)
TTXT_SYSTEM_C (PAL and NTSC)
TTXT_SYSTEM_D (PAL and NTSC)
VPS (PAL)
VITC (NTSC and PAL)
WSS (PAL)
Gemstar 1× (NTSC)
Gemstar 2× (NTSC)
CC (NTSC and PAL)
CGMS (NTSC)
Table 75. Total User Data-Words for Different VBI Standards
VBI Standard
TTXT_SYSTEM_A (PAL)
TTXT_SYSTEM_B (PAL)
TTXT_SYSTEM_B (NTSC)
TTXT_SYSTEM_C (PAL and NTSC)
TTXT_SYSTEM_D (PAL and NTSC)
VPS (PAL)
VITC (NTSC and PAL)
WSS (PAL)
Gemstar 1× (NTSC)
Gemstar 2× (NTSC)
CC (NTSC and PAL)
CGMS (NTSC)
1
The first four UDWs are always the identification word.
Length in Bits
8
8
8
8
8
16
1
24
3
11
3
1
ADF Mode
00 (nibble mode)
01, 10 (byte mode)
00 (nibble mode)
01, 10 (byte mode)
00 (nibble mode)
01, 10 (byte mode)
00 (nibble mode)
01, 10 (byte mode)
00 (nibble mode)
01, 10 (byte mode)
00 (nibble mode)
01, 10 (byte mode)
00 (nibble mode)
01, 10 (byte mode)
00 (nibble mode)
01, 10 (byte mode)
00 (nibble mode)
01, 10 (byte mode)
00 (nibble mode)
01, 10 (byte mode)
00 (nibble mode)
01, 10 (byte mode)
00 (nibble mode)
01, 10 (byte mode)
Error-Free Framing Code Bits
(In Order of Transmission )
11100111
11100100
11100100
11100111
11100101
10001010100011001
0
000111100011110000011111
001
1001 1011 101
001
0
Rev. A | Page 59 of 112
1
Framing Code
UDWs
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
VBI Data-
Words
74
37
84
42
68
34
66
33
68
34
26
13
18
9
4
2
4
2
8
4
4
2
6
3 + 3
Error-Free Framing Code Reported by
VDP (In Reverse Order of Transmission )
11100111
00100111
00100111
11100111
10100111
1001100101010001
0
111110000011110001111000
100
101 1101 1001
100
0
Number of
Padding Words
0
0
2
3
2
3
0
2
2
3
0
0
0
0
2
3
2
3
2
1
2
3
0
2
Total UDWs
84
44
96
52
80
44
76
42
80
44
36
20
28
16
16
12
16
12
20
12
16
12
16
12
ADV7188