Visible to Intel only — GUID: nle1657031228094
Ixiasoft
1. About the Video and Vision Processing Suite
2. Getting Started with the Video and Vision Processing IPs
3. Video and Vision Processing IPs Functional Description
4. Video and Vision Processing IP Interfaces
5. Video and Vision Processing IP Registers
6. Video and Vision Processing IPs Software Programming Model
7. Protocol Converter Intel® FPGA IP
8. 3D LUT Intel® FPGA IP
9. AXI-Stream Broadcaster Intel® FPGA IP
10. Chroma Resampler Intel® FPGA IP
11. Clipper Intel® FPGA IP
12. Clocked Video Input Intel® FPGA IP
13. Clocked Video to Full-Raster Converter Intel® FPGA IP
14. Clocked Video Output Intel® FPGA IP
15. Color Space Converter Intel® FPGA IP
16. Deinterlacer Intel® FPGA IP
17. FIR Filter Intel® FPGA IP
18. Frame Cleaner Intel® FPGA IP
19. Full-Raster to Clocked Video Converter Intel® FPGA IP
20. Full-Raster to Streaming Converter Intel® FPGA IP
21. Generic Crosspoint Intel® FPGA IP
22. Genlock Signal Router Intel® FPGA IP
23. Guard Bands Intel® FPGA IP
24. Mixer Intel® FPGA IP
25. Pixels in Parallel Converter Intel® FPGA IP
26. Scaler Intel® FPGA IP
27. Tone Mapping Operator Intel® FPGA IP
28. Test Pattern Generator Intel® FPGA IP
29. Video Frame Buffer Intel® FPGA IP
30. Video Streaming FIFO Intel® FPGA IP
31. Video Timing Generator Intel® FPGA IP
32. Warp Intel® FPGA IP
33. Design Security
34. Document Revision History for Video and Vision Processing Suite User Guide
Visible to Intel only — GUID: nle1657031228094
Ixiasoft
12.2. Initializing the Clocked Video Input IP
The IP provides an Avalon memory-mapped interface, which you can use as a control interface to configure the IP. Initially, the IP is disabled and does not transmit any data or video. However, the Clocked Video Input IP still detects the format of the clocked video input and accepts data on the input video interface.
To start the output of the IP:
- Write a 1 to control register bit 0 to enable the clocked video input block
- Write a 1 to control register bit 4 to enable Vsync and Hsync auto-polarity detection.
- Optionally, write a 1 to control register bit 3 to enable the frame cleaner logic.
- Write the expected output video height and width values to ref_lock_cfg1 register. The IP only starts transmitting video on the output interface when the values on ref_lock_cfg1 matches the values on registers active_line_count and total_line_count.
- Write the expected number of frames and output video lines values to ref_lock_cfg2 register. The IP only starts transmitting video on the output interface when the values on ref_lock_cfg2 are matched.
- Alternatively, if you write zeros to ref_lock_cfg1 and ref_lock_cfg2, the IP does not try to match any specific output video resolution values and immediately produces video.
- Optionally, set the values for each of the color planes that the frame cleaner use to do the padding on the output video frame in case a cable is pulled.
- Read status register bit 4. When this bit is 1, the IP starts transmitting video. The transmission starts on the next start of frame boundary.