Genie Nano-CL Series™ Operational Reference • 43Synchronous Exposure AlignmentExposure is synchronous to the internal timing of the sensor. The readout is concurrent to theexposure for the fastest possible frame rate.When a valid trigger is received and the Exposure Time is shorter than the readout period, theExposure Start event is latched in the previous frame’s readout. That is; the Exposure Start Eventis delayed and is initiated when the actual exposure starts such that the exposure ends andreadout begins as soon as the previous readout has completed.• The programmable exposure duration is in 1μs steps.• Exposure duration is from a camera sensor specific minimum (in μs) up to 16 sec.• Any trigger received before the start of frame readout is ignored and generates an invalid frametrigger event.Reset Exposure AlignmentSensor timing is reset to initiate exposure when a valid trigger is received. Readout is sequential toexposure, reducing the maximum achievable frame rates. That is, a trigger received duringexposure or readout is ignored since data would be lost by performing a reset.Sensor Exposure Timing: OnSemi Python ModelsNano cameras with OnSemi sensors have general timing characteristics as described below.Trigger Characteristics: Start of ExposureExternalTrigger InputInput propagation Delay (see Input Signals Electrical Specifications)Internal Trigger Control<< Exposure Active >>Start of Exposure Detailsfor Nano Models using OnSemi Pythonrising edge activeInternal Delay (exposureAlignment = Reset or Synchronous With No Overlap)Internal Delay (exposureAlignment = Synchronous With Overlap)Additional triggered exposure mode features and timing specific to OnSemi sensors are describedin the I/O Controls Category.See model specific sections for explicit timing values.
