CX25870/871
Appendix A Scaling and I/0 Timing Register Calculations
Flicker-Free Video Encoder with Ultrascale Technology
Table A-22. Overscan Values 1024 x 768 NTSC, Pixel-Based Controller, 1-Pixel Resolution, >1.50 µs. Hblank (2 of 4)
Graphics Controller
Total
Encoder Pixels
Overscan (Percent)
Active
Total
H_CLKI
V_LINESI
V_ACTIVEO
H_CLKO
Horizontal
Vertical
Delta
1155
1152
1150
1190
1150
1149
1197
1197
1197
1197
1200
1200
1195
1146
1145
1200
1197
1143
1200
1200
1140
1140
1200
1137
1205
1134
1135
1134
1134
1134
1134
960
1050
945
210
192
214
214
200
192
197
207
218
202
196
200
214
192
214
209
213
192
205
214
214
192
219
192
214
197
214
213
202
192
207
1408
1536
1380
1428
1472
1532
1558
1482
1406
1520
1568
1536
1434
1528
1374
1472
1444
1524
1504
1440
1368
1520
1408
1516
1446
1476
1362
1368
1440
1512
1404
12.22
19.53
10.44
13.45
16.03
19.32
20.67
16.6
13.58
20.99
11.93
11.93
17.7
-1.36
-1.45
-1.5
945
1.51
-1.66
-1.66
1.74
1.79
1.8
1008
1050
1025
975
20.99
18.93
14.81
10.29
16.87
19.34
17.7
925
12.09
18.69
21.18
19.53
13.81
19.11
10.05
16.03
14.41
18.9
1000
1029
1008
945
1.81
1.83
1.84
1.88
-1.88
-1.89
2.04
2.06
-2.09
2.18
2.23
-2.28
-2.3
11.93
20.99
11.93
13.99
12.35
20.99
15.64
11.93
11.93
20.99
9.88
1050
945
966
950
1050
987
17.82
14.17
9.65
945
945
1050
924
18.69
12.22
18.47
14.52
16.26
9.25
2.34
-2.52
2.59
-2.67
-2.68
-2.69
-2.7
1050
945
20.99
11.93
18.93
11.93
12.35
16.87
20.99
14.81
1025
945
950
9.65
1000
1050
975
14.17
18.26
11.97
-2.73
-2.85
100381B
Conexant
A-43
CONEXANT [ CONEXANT SYSTEMS, INC ]
