adv7188 Analog Devices, Inc., adv7188 Datasheet - Page 75

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

To retrieve closed caption data services on PAL (Line 335),
GDECEL [14] must be set.
The default value of GDECEL [15:0] is 0x0000. This setting
instructs the decoder not to attempt to decode Gemstar or CC
data from any line in the even field. The user should only enable
Gemstar slicing on lines where VBI data is expected.
Table 94. NTSC Line Enable Bits and
Corresponding Line Numbering
line [3:0]
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Line Number
(ITU-R BT.470)
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
273 (10)
274 (11)
275 (12)
276 (13)
277 (14)
278 (15)
279 (16)
280 (17)
281 (18)
282 (19)
283 (20)
284 (21)
285 (22)
286 (23)
287 (24)
288 (25)
Enable Bit
GDECOL [0]
GDECOL [1]
GDECOL [2]
GDECOL [3]
GDECOL [4]
GDECOL [5]
GDECOL [6]
GDECOL [7]
GDECOL [8]
GDECOL [9]
GDECOL [10]
GDECOL [11]
GDECOL [12]
GDECOL [13]
GDECOL [14]
GDECOL [15]
GDECEL [0]
GDECEL [1]
GDECEL [2]
GDECEL [3]
GDECEL [4]
GDECEL [5]
GDECEL [6]
GDECEL [7]
GDECEL [8]
GDECEL [9]
GDECEL [10]
GDECEL [11]
GDECEL [12]
GDECEL [13]
GDECEL [14]
GDECEL [15]
Comment
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar or CC
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar
Gemstar or CC
Gemstar
Gemstar
Gemstar
Gemstar
Rev. A | Page 75 of 112
Table 95. PAL Line Enable Bits and
Corresponding Line Numbering
Line [3:0]
12
13
14
15
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
10
11
1
As indicated by the bold rows, two standards can use the same line for VBI
data.
Line Number
(ITU-R BT.470)
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
321 (8)
322 (9)
323 (10)
324 (11)
325 (12)
326 (13)
327 (14)
328 (15)
329 (16)
330 (17)
331 (18)
332 (19)
333 (20)
334 (21)
335 (22)
336 (23)
Enable Bit
GDECOL [0]
GDECOL [1]
GDECOL [2]
GDECOL [3]
GDECOL [4]
GDECOL [5]
GDECOL [6]
GDECOL [7]
GDECOL [8]
GDECOL [9]
GDECOL [10]
GDECOL [11]
GDECOL [12]
GDECOL [13]
GDECOL [14]
GDECOL [15]
GDECEL [0]
GDECEL [1]
GDECEL [2]
GDECEL [3]
GDECEL [4]
GDECEL [5]
GDECEL [6]
GDECEL [7]
GDECEL [8]
GDECEL [9]
GDECEL [10]
GDECEL [11]
GDECEL [12]
GDECEL [13]
GDECEL [14]
GDECEL [15]
1
Comment
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
CC
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
Not valid
CC
Not valid
ADV7188