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Altera_Forum
Honored Contributor
14 years agoSync signal of VIP Clocked Video Input
Hey guys, Just one quick question about the sync signals of Clocked Video Input megacore: The manual said vid_h_sync should be set to 1 when video is in horizontal synchronization period. ...
Altera_Forum
Honored Contributor
14 years agovid_h_sync is only referring to the horizontal synchronization period and not the blanking period.
If you read the section on Separate Synchronization Format it hints that vid_h_sync is strictly the horizontal synchronization period, and does not include the blanking periods. This can be seen further through the timing diagram, where the h_sync pulse is asserted between the two vid_datavalid sections. The vid_datavalid indicating active picture period. The documentation could be more explicit on this.