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ADV7180
Data Sheet
Rev. I | Page 56 of 116
Table 71.VBI Data Standards to be Decoded on Line Px (PAL) or Line Ny (NTSC)
Signal Name
Register Location
Dec Address
Hex Address
VBI_DATA_P6_N23
VDP_LINE_00F[7:4]
101
0x65
VBI_DATA_P7_N24
VDP_LINE_010[7:4]
102
0x66
VBI_DATA_P8_N25
VDP_LINE_011[7:4]
103
0x67
VBI_DATA_P9
VDP_LINE_012[7:4]
104
0x68
VBI_DATA_P10
VDP_LINE_013[7:4]
105
0x69
VBI_DATA_P11
VDP_LINE_014[7:4]
106
0x6A
VBI_DATA_P12_N10
VDP_LINE_015[7:4]
107
0x6B
VBI_DATA_P13_N11
VDP_LINE_016[7:4]
108
0x6C
VBI_DATA_P14_N12
VDP_LINE_017[7:4]
109
0x6D
VBI_DATA_P15_N13
VDP_LINE_018[7:4]
110
0x6E
VBI_DATA_P16_N14
VDP_LINE_019[7:4]
111
0x6F
VBI_DATA_P17_N15
VDP_LINE_01A[7:4]
112
0x70
VBI_DATA_P18_N16
VDP_LINE_01B[7:4]
113
0x71
VBI_DATA_P19_N17
VDP_LINE_01C[7:4]
114
0x72
VBI_DATA_P20_N18
VDP_LINE_01D[7:4]
115
0x73
VBI_DATA_P21_N19
VDP_LINE_01E[7:4]
116
0x74
VBI_DATA_P22_N20
VDP_LINE_01F[7:4]
117
0x75
VBI_DATA_P23_N21
VDP_LINE_020[7:4]
118
0x76
VBI_DATA_P24_N22
VDP_LINE_021[7:4]
119
0x77
VBI_DATA_P318
VDP_LINE_00E[3:0]
100
0x64
VBI_DATA_P319_N286
VDP_LINE_00F[3:0]
101
0x65
VBI_DATA_P320_N287
VDP_LINE_010[3:0]
102
0x66
VBI_DATA_P321_N288
VDP_LINE_011[3:0]
103
0x67
VBI_DATA_P322
VDP_LINE_012[3:0]
104
0x68
VBI_DATA_P323
VDP_LINE_013[3:0]
105
0x69
VBI_DATA_P324_N272
VDP_LINE_014[3:0]
106
0x6A
VBI_DATA_P325_N273
VDP_LINE_015[3:0]
107
0x6B
VBI_DATA_P326_N274
VDP_LINE_016[3:0]
108
0x6C
VBI_DATA_P327_N275
VDP_LINE_017[3:0]
109
0x6D
VBI_DATA_P328_N276
VDP_LINE_018[3:0]
110
0x6E
VBI_DATA_P329_N277
VDP_LINE_019[3:0]
111
0x6F
VBI_DATA_P330_N278
VDP_LINE_01A[3:0]
112
0x70
VBI_DATA_P331_N279
VDP_LINE_01B[3:0]
113
0x71
VBI_DATA_P332_N280
VDP_LINE_01C[3:0]
114
0x72
VBI_DATA_P333_N281
VDP_LINE_01D[3:0]
115
0x73
VBI_DATA_P334_N282
VDP_LINE_01E[3:0]
116
0x74
VBI_DATA_P335_N283
VDP_LINE_01F[3:0]
117
0x75
VBI_DATA_P336_N284
VDP_LINE_020[3:0]
118
0x76
VBI_DATA_P337_N285
VDP_LINE_021[3:0]
119
0x77
Note that full field detection (lines other than VBI lines) of any
standard can also be enabled by writing into the VBI_DATA_
P24_N22[3:0] and VBI_DATA_P337_N285[3:0] registers. So, if
VBI_DATA_P24_N22[3:0] is programmed with any teletext
standard, then teletext is decoded off for the entire odd field.
The corresponding register for the even field is VBI_DATA_
P337_N285[3:0].
For teletext system identification, VDP assumes that if teletext
is present in a video channel, all the teletext lines comply with a
single standard system. Therefore, the line programming using
the VBI_DATA_Px_Ny and VBI_DATA_Px registers identifies
whether the data in line is teletext; the actual standard is
identified by the VDP_TTXT_TYPE_MAN bit.
To program the VDP_TTXT_TYPE_MAN bit, the
VDP_TTXT_TYPE_MAN_ENABLE bit must be set to 1.