Tvone C3-440, Manual

Page: 176 / 225

168 Resolution Editor Guide
3. When you have modified the Front Porch as desired, click the Update button at the
bottom of the window to commit changes and return to the Resolution Editor.
Default
0
Notes
The valid range of values is 1 to 2000.
For a valid Custom Resolution, you must configure this property to a value within the valid
range. To calculate the
Vertical Front Porch , Vertical Sync Pulse and Vertical Back
Porch for an interlaced resolution, double the value of the even field. Interlacing standards
are designed this way in order to present the values in a similar format to Progressive
values.
Interlaced Custom Resolutions require that the Vertical Front Porch is twice the even field.
For example, a Vertical Front Porch of 6 gives:
Odd field:3.5
Even field:3
In the CORIOdiscover Resolution Editor, the
Pixel Clock is not affected by any changes to
the Vertical Front Porch . However, the Vertical Frequency read-only field varies based on
Vertical Front Porch changes.