S5D0127X01 Datasheet, PDF (35/96 Pages) Samsung semiconductor – MULTISTANDARD VIDEO DECODER/SCALER

S5D0127X01 Data Sheet
MULTIMEDIA VIDEO
VBCVBS
0
0
1
1
Table 8: VBI Data Output Mode (VBILn != 0)
VBINSRT
0
1
0
1
Output Mode
The VBI data is available via the internal registers CCDAT1 and
CCDAT2. Only the last 2 extracted bytes are stored in these
registers. Thus, this mode is only useful for extraction of Closed
Caption data.
This mode enables output of the sliced VBI data.
This mode enables output of direct data from the ADC.
This mode is invalid.
The S5D0127X01 adds an additional output mode and flexibility to vary the modes from line to line. If VBCVBS=0
and VBINSRT=1 S5D0127X01 will output sliced data on enabled lines. By setting VBIMID to 1, any line for which
VBIL=3 will output raw ADC data instead of WSS or CGMS. This mode allows a mixture of sliced and raw data.
This can be used to output raw data from a teletext line and sliced data from a closed caption line.
1.7.3. Select Individual Lines Enabled for VBI Processing
The S5D0127X01 allows programmable selection of processing for the various video lines. For example
Teletext/Intercast data can be sliced for lines 14 - 17, and closed caption for line 21.
Each 2-bit register VBIL0 through VBIL15 defines how a specific VBI line is processed. As can be seen in Figure
36 for 60 Hz and Figure 37 for 50 Hz video, the following alignments exist:
VBIL
number
VBIL0
VBIL1
VBIL2
VBIL3
VBIL4
VBIL5
VBIL6
VBIL7
VBIL8
VBIL9
VBIL10
VBIL11
VBIL12
VBIL13
VBIL14
VBIL15
Table 9: VBI Line(s) Selection
Line Number That the VBIL Processing command applies to
(Assuming ODDOS=1)
Odd Field Even Field Odd Field
Even Field
60 Hz
60 Hz
50 Hz
50Hz
All Lines
All Lines
Except 10-24 Except
273-287
All lines
All lines Except
Except 7-21 320 - 334
9&10
272&273
6&7
319&320
11
274
8
321
12
275
9
322
13
276
10
323
14
277
11
324
15
278
12
325
16
279
13
326
17
280
14
327
18
281
15
328
19
282
16
329
20
283
17
330
21
284
18
331
22
285
19
332
23
286
20
333
24&25
287&288
21&22
334&335
ELECTRONICS
Modified on May/04/2000
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