CX25870/871
Appendix A Scaling and I/0 Timing Register Calculations
Flicker-Free Video Encoder with Ultrascale Technology
Figure A-6. Allowable Overscan Compensation Ratios for Dual Display, 800x600 Input, PAL-BDGHI Output in 3:2 Clocking
Mode
22
20
18
16
14
12
10
8
8
10
12
14
16
18
20
22
Vertical Overscan Compensation Percentage
LEGEND
= Pixel Clock Solution
= 8-Cycle Character Clock Solution
= 9-Cycle Character Clock Solution
NOTE(S):
1. All overscan solutions on this chart can be enabled by a data master that requires no more than 8 µs of HBlank time per line.
2. Use this chart for SECAM, PAL-N, and PAL-Nc allowable overscan compensation ratios.
100381_066
100381B
Conexant
A-9
CONEXANT [ CONEXANT SYSTEMS, INC ]
