Defines available interval types.
| Member | Value | Description | 
|---|---|---|
| eCrdnEventIntervalTypeUnknown | -1 | Unknown or unsupported interval types. | 
| eCrdnEventIntervalTypeFixed | 0 | Interval defined between two explicitly specified start and stop times. | 
| eCrdnEventIntervalTypeFixedDuration | 1 | Interval of fixed duration specified using start and stop offsets relative to specified reference time instant. | 
| eCrdnEventIntervalTypeBetweenTimeInstants | 2 | Interval between specified start and stop time instants. | 
| eCrdnEventIntervalTypeFromIntervalList | 3 | Interval created from specified interval list by using one of several selection methods. | 
| eCrdnEventIntervalTypeScaled | 4 | Interval defined by scaling original interval using either absolute or relative scale. | 
| eCrdnEventIntervalTypeSignaled | 5 | Determines an interval recorded at a target clock location by performing signal transmission. | 
| eCrdnEventIntervalTypeTimeOffset | 6 | Interval defined by shifting specified reference interval by fixed time offset. | 
| eCrdnEventIntervalTypeSmartInterval | 7 | A smart interval. | 





