Visible to Intel only — GUID: vgo1439184055861
Ixiasoft
Visible to Intel only — GUID: vgo1439184055861
Ixiasoft
3.1.3. Separate Synchronization Format
The CVO IP cores create horizontal and vertical syncs and field information through their own signals. The CVO IP cores create a sample for each clock cycle on the vid_data bus. The vid_datavalid signal indicates when the vid_data video output is in an active picture period of the frame.
Signal Name | Description |
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vid_h_sync | When 1, the video is in a horizontal synchronization period. |
vid_v_sync | When 1, the video is in a vertical synchronization period. |
vid_f | When 1, the video is interlaced and in field 1. When 0, the video is either progressive or interlaced and in field 0. |
vid_h | When 1, the video is in a horizontal blanking period, (only for Clocked Video Output IP core). |
vid_v | When 1, the video is in a vertical blanking period, (only for Clocked Video Output IP core). |
vid_de | When asserted, the video is in an active picture period (not horizontal or vertical blanking). This signal must be driven for correct operation of the IP cores.
Note: Only for Clocked Video Input IP cores.
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vid_datavalid |
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The CVI IP cores only read the vid_data, vid_de, vid_h_sync, vid_v_sync, and vid_f signals when vid_datavalid is 1. This allows the CVI IP cores to support oversampling where the video clock is running at a higher rate than the pixel clock.