User`s manual

Genie HM Series-GigE Vision Camera Operational Reference • 53
Synchronization Timing
Genie supports two types of sensor synchronization used to align the exposure to sensor timing:
• Synchronous Mode: Exposure is synchronous to the line timing of the sensor. Exposure granularity is 1µs and
the readout can be concurrent to the exposure for the fastest possible frame rate.
• Reset Mode: Timing is reset to initiate exposure of next frame. Exposure granularity is 1µs, but readout must
be sequential to exposure, reducing the maximum achievable frame rate.
Synchronous Mode
• Synchronous mode starts the exposure period aligned to the sensor horizontal line timing and the programmable
duration steps are 1µs.
• Exposure duration is from a minimum of 56µs up to 4 sec.
• In this mode, sensor exposure and sensor readout of the previous frame's exposure occur simultaneously. This
allows operating the sensor up to its maximum frame rate.
• Any trigger received before the end of the exposure is ignored. The application can elect to receive messages
about ignored triggers. See "
Events" on page 72.
• Since the external trigger is asynchronous with the Genie horizontal line timing, the frame exposure start is
subject to 1 horizontal line jitter.
Synchronous Mode Timing example for Genie