Dalsa Xtium2-CLHS PX8 - Synchronization Signals for Variable Frame Length Acquisition; Figure 13: Line Scan, Fixed Frame, no Trigger; Figure 14: Line Scan, Fixed Frame, Edge Trigger; Figure 15: Line Scan, Fixed Frame, Level Trigger (Roll-Over to Next Frame)

Xtium2-CLHS PX8 User's Manual Xtium2-CLHS PX8 Reference • 47
Frame Valid
Grab Start
Illegal Grab Start
Figure 13: Line scan, Fixed Frame, No Trigger
Frame Valid
Trigger
T T T Ignored
Grab Start
Figure 14: Line scan, Fixed Frame, Edge Trigger
Frame Valid
Trigger
(Active High)
Grab Start
T T
T T
Frame Valid
Trigger
(Active High)
Grab Start
T
Grab Start (SapTransfer) called before trigger
Grab Start (SapTransfer) called after trigger
T
Trigger event issued at grab start
T
Figure 15: Line scan, Fixed Frame, Level Trigger (Roll-Over to Next Frame)
Synchronization Signals for Variable Frame Length Acquisition
For variable length frames, trigger ignored events are not issued
(SapAcquisition::EventExternalTriggerIgnored); a valid trigger event always initiates either a frame
start or frame end.