Appendix A Scaling and I/0 Timing Register Calculations
CX25870/871
Flicker-Free Video Encoder with Ultrascale Technology
Table A-17. Overscan Values, 800 x 600 PAL-BDGHI, Character Clock-Based Controller, 8-Pixel Resolution
Controller Pixels
Total
Encoder Pixels
Active
Overscan (Percent)
Total
H_CLKI
V_LINESI
V_ACTIVEO
H_CLKO
Horizontal
Vertical
Resolution
960
750
750
785
775
750
780
760
770
745
730
755
765
740
725
720
735
715
750
250
250
239
242
250
241
247
244
252
257
249
246
254
259
261
256
263
250
1152
1104
1256
1240
1200
1248
1216
1232
1192
1168
1208
1224
1184
1160
1152
1176
1144
1248
14.53
10.81
21.61
20.60
17.95
21.10
19.03
20.08
17.40
15.70
18.49
19.56
16.84
15.12
14.53
16.27
13.93
21.10
13.19
13.19
17.01
15.97
13.19
16.32
14.24
15.28
12.50
10.76
13.54
14.58
11.81
10.07
9.38
1.34
–2.38
4.59
4.62
4.75
4.79
4.79
4.80
4.90
4.94
4.95
4.97
5.03
5.05
5.15
5.16
5.25
7.91
920
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1040
11.11
8.68
13.19
A-36
Conexant
100381B
CONEXANT [ CONEXANT SYSTEMS, INC ]
