Referring to video driver event

DoxyGen/simulation/src/Ref_video.txt

@@ -55,7 +55,7 @@ The execution flow for video input on channel 0 is explained in the diagram belo
  7. With step 6 completed, a loop of frame reading is started:
     - A frame is read from the file, and is prepared according to the stream configuration (with crop/resize and color change operations done in the vsi_video_server.py).
     - The processed frame data is copied to the DMA buffer.
-    - \ref VideoDrv_GetStatus checks if the frame buffer is full, meaning that a complete frame was transferred to the FVP memory. An approach with VSI interrupt check can be used as well.
+    - \ref VideoDrv_GetStatus checks if the frame buffer is full, meaning that a complete frame was transferred to the FVP memory. An approach with asynchronous video driver event \ref VIDEO_DRV_EVENT_FRAME can be used as well.
     - When video buffer is filled, we can extract the frame from it using \ref VideoDrv_GetFrameBuf() .
     - Obtained frame can be now passed to the processing algorithm (for example for object detection).
     - Release the frame with \ref VideoDrv_ReleaseFrame to enable reception of the next frame.