Video and Vision Processing Suite Intel® FPGA IP User Guide

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ID 683329
Date 6/26/2023
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Document Table of Contents
Document Table of Contents x
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. Bits per Color Sample Adapter Intel FPGA IP 11. Chroma Key Intel® FPGA IP 12. Chroma Resampler Intel® FPGA IP 13. Clipper Intel® FPGA IP 14. Clocked Video Input Intel® FPGA IP 15. Clocked Video to Full-Raster Converter Intel® FPGA IP 16. Clocked Video Output Intel® FPGA IP 17. Color Space Converter Intel® FPGA IP 18. Deinterlacer Intel® FPGA IP 19. FIR Filter Intel® FPGA IP 20. Frame Cleaner Intel® FPGA IP 21. Full-Raster to Clocked Video Converter Intel® FPGA IP 22. Full-Raster to Streaming Converter Intel® FPGA IP 23. Genlock Controller Intel® FPGA IP 24. Generic Crosspoint Intel® FPGA IP 25. Genlock Signal Router Intel® FPGA IP 26. Guard Bands Intel® FPGA IP 27. Interlacer Intel® FPGA IP 28. Mixer Intel® FPGA IP 29. Pixels in Parallel Converter Intel® FPGA IP 30. Scaler Intel® FPGA IP 31. Stream Cleaner Intel® FPGA IP 32. Switch Intel® FPGA IP 33. Tone Mapping Operator Intel® FPGA IP 34. Test Pattern Generator Intel® FPGA IP 35. Video and Vision Monitor Intel FPGA IP 36. Video Frame Buffer Intel® FPGA IP 37. Video Frame Reader Intel FPGA IP 38. Video Frame Writer Intel FPGA IP 39. Video Streaming FIFO Intel® FPGA IP 40. Video Timing Generator Intel® FPGA IP 41. Warp Intel® FPGA IP 42. Design Security 43. Document Revision History for Video and Vision Processing Suite User Guide
1. About the Video and Vision Processing Suite x
1.1. Video and Vision Processing IPs Features 1.2. Device Family Support 1.3. Video and Vision Processing IPs Release Information 1.4. Lite versus Full IP Variants 1.5. Glossary of Video and Vision Terminology
2. Getting Started with the Video and Vision Processing IPs x
2.1. Video and Vision Processing IP Evaluation Time-out Behavior 2.2. Generating a Video and Vision Processing IP 2.3. Simulating the Video and Vision Processing IPs
3. Video and Vision Processing IPs Functional Description x
3.1. Auxiliary Control Packets 3.2. Latency 3.3. IP Debugging Features 3.4. Stall Behavior and Error Recovery 3.5. Avalon Streaming Video Protocol Versus Intel FPGA Streaming Video Protocol
5. Video and Vision Processing IP Registers x
5.1. Video and Vision Processing IP Control Examples
7. Protocol Converter Intel® FPGA IP x
7.1. About the Protocol Converter IP 7.2. Protocol Converter IP Parameters 7.3. Protocol Converter IP Functional Description 7.4. Protocol Converter IP Interfaces 7.5. Protocol Converter IP Registers 7.6. Protocol Converter IP Software API
7.1. About the Protocol Converter IP x
7.1.1. Protocol Converter IP Performance and Resources
8. 3D LUT Intel® FPGA IP x
8.1. About the 3D LUT Intel® FPGA IP 8.2. 3D LUT IP Parameters 8.3. 3D LUT IP Block Description 8.4. 3D LUT IP Registers 8.5. 3D LUT IP Software API
8.1. About the 3D LUT Intel® FPGA IP x
8.1.1. 3D LUT IP Features 8.1.2. 3D LUT IP Performance IP and Resource Information
8.3. 3D LUT IP Block Description x
8.3.1. 3D LUT IP Interfaces 8.3.2. 3D LUT IP Latency
9. AXI-Stream Broadcaster Intel® FPGA IP x
9.1. About the AXI-Stream Broadcaster IP 9.2. AXI-Stream Broadcaster IP Parameters 9.3. AXI-Stream Broadcaster IP Interfaces
9.1. About the AXI-Stream Broadcaster IP x
9.1.1. AXI-Stream Broadcaster IP Features 9.1.2. AXI-Stream Broadcaster IP Performance and Resources
10. Bits per Color Sample Adapter Intel FPGA IP x
10.1. About the Bits per Color Sample Adapter IP 10.2. Bits per Color Sample Adapter IP Parameters 10.3. Bits per Color Sample Adapter IP Interfaces
10.1. About the Bits per Color Sample Adapter IP x
10.1.1. Bits per Color Sample Adapter IP Performance and Resources
11. Chroma Key Intel® FPGA IP x
11.1. About the Chroma Key IP 11.2. Chroma Key IP Parameters 11.3. Chroma Key IP Interfaces 11.4. Chroma Key Replacement 11.5. Chroma Key IP Registers 11.6. Chroma Key IP Software API
11.1. About the Chroma Key IP x
11.1.1. Chroma Key IP Performance and Resources
12. Chroma Resampler Intel® FPGA IP x
12.1. About the Chroma Resampler IP 12.2. Chroma Resampler IP Parameters 12.3. Chroma Resampler IP Functional Description 12.4. Chroma Resampler IP Registers 12.5. Chroma Resampler IP Software API
12.1. About the Chroma Resampler IP x
12.1.1. Chroma Resampler Performance and Resources
12.3. Chroma Resampler IP Functional Description x
12.3.1. Chroma Resampler IP Interfaces
13. Clipper Intel® FPGA IP x
13.1. About the Clipper IP 13.2. Clipper IP Parameters 13.3. Clipper IP Interfaces 13.4. Clipper IP Registers 13.5. Clipper IP Software API
13.1. About the Clipper IP x
13.1.1. Clipper IP Performance and Resources
14. Clocked Video Input Intel® FPGA IP x
14.1. About the Clocked Video Input IP 14.2. Initializing the Clocked Video Input IP 14.3. Clocked Video Input IP Parameters 14.4. Clocked Video Input IP Interfaces 14.5. Clocked Video Input IP Registers 14.6. Clocked Video Input IP Software API
14.1. About the Clocked Video Input IP x
14.1.1. Clocked Video Input IP Features 14.1.2. Clocked Video Input IP Performance and Resources
15. Clocked Video to Full-Raster Converter Intel® FPGA IP x
15.1. About the Clocked Video to Full-Raster Converter IP 15.2. Clocked Video to Full-Raster Converter Parameters 15.3. Clocked Video to Full-Raster Converter Block Description 15.4. Clocked Video Converter to Full-Raster IP Registers
15.1. About the Clocked Video to Full-Raster Converter IP x
15.1.1. Clocked Video to Full-Raster Converter Features 15.1.2. Clocked Video to Full-Raster Converter Performance and Resources
15.3. Clocked Video to Full-Raster Converter Block Description x
15.3.1. Clocked Video to Full-Raster Converter Interfaces
16. Clocked Video Output Intel® FPGA IP x
16.1. About the Clocked Video Output IP 16.2. Clocked Video Output IP Parameters 16.3. Clocked Video Output IP Functional Description 16.4. Clocked Video Output IP Interfaces 16.5. Clocked Video Output IP Registers 16.6. Clocked Video Output IP Software API
16.1. About the Clocked Video Output IP x
16.1.1. Clocked Video Output IP Performance and Resources 16.1.2. Clocked Video Output IP Features
17. Color Space Converter Intel® FPGA IP x
17.1. About the Color Space Converter IP 17.2. Color Space Converter IP Parameters 17.3. Color Space Converter IP Functional Description 17.4. Color Space Converter IP Registers 17.5. Color Space Converter IP Software API
17.1. About the Color Space Converter IP x
17.1.1. Color Space Converter IP Features 17.1.2. Color Space Converter IP Performance and Resources
17.3. Color Space Converter IP Functional Description x
17.3.1. Color Space Converter IP Interfaces
18. Deinterlacer Intel® FPGA IP x
18.1. About the Deinterlacer IP 18.2. Deinterlacer Parameters 18.3. Deinterlacer Interfaces 18.4. Deinterlacer IP Registers 18.5. Deinterlacer IP Software API
18.1. About the Deinterlacer IP x
18.1.1. Deinterlacer Performance and Resources
19. FIR Filter Intel® FPGA IP x
19.1. About the FIR Filter 19.2. FIR Filter Parameters 19.3. FIR Filter IP Operation 19.4. FIR Filter Interfaces 19.5. FIR Filter Registers 19.6. FIR Filter IP Software API
19.1. About the FIR Filter x
19.1.1. FIR Filter IP Performance and Resources
19.3. FIR Filter IP Operation x
19.3.1. FIR Filter Processing 19.3.2. FIR Filter Precision 19.3.3. FIR Coefficient Specification 19.3.4. FIR Filter Symmetry 19.3.5. Result to Output Data Type Conversion
19.3.4. FIR Filter Symmetry x
19.3.4.1. No Symmetry 19.3.4.2. Horizontal Symmetry 19.3.4.3. Vertical Symmetry 19.3.4.4. Horizontal and Vertical Symmetry 19.3.4.5. Diagonal Symmetry
20. Frame Cleaner Intel® FPGA IP x
20.1. About the Frame Cleaner IP 20.2. Frame Cleaner IP Parameters 20.3. Frame Cleaner IP Functional Description 20.4. Frame Cleaner IP Interfaces 20.5. Frame Cleaner IP Registers 20.6. Frame Cleaner IP Software API
20.1. About the Frame Cleaner IP x
20.1.1. Frame Cleaner IP Performance and Resources
21. Full-Raster to Clocked Video Converter Intel® FPGA IP x
21.1. About the Full-Raster to Clocked Video Converter 21.2. Full Raster to Clocked Video Converter Parameters 21.3. Full-Raster to Clocked Video Converter Block Description 21.4. Full-Raster to Clocked Video Converter Registers
21.1. About the Full-Raster to Clocked Video Converter x
21.1.1. Full-Raster to Clocked Video Converter Features 21.1.2. Full-Raster to Clocked Video Converter Performance and Resource Utilization
21.3. Full-Raster to Clocked Video Converter Block Description x
21.3.1. Full Raster to Clocked Video Converter Interfaces
22. Full-Raster to Streaming Converter Intel® FPGA IP x
22.1. About the Full-Raster to Streaming Converter IP 22.2. Full-Raster to Streaming Converter Parameters 22.3. Full-Raster to Streaming Converter Block Description
22.1. About the Full-Raster to Streaming Converter IP x
22.1.1. Full-Raster to Streaming Converter Features 22.1.2. Full-Raster to Streaming Converter Performance and Resources
22.3. Full-Raster to Streaming Converter Block Description x
22.3.1. Full-Raster to Streaming Converter Interfaces
23. Genlock Controller Intel® FPGA IP x
23.1. About the Genlock Controller IP 23.2. Genlock Controller IP Parameters 23.3. Genlock Controller IP Functional Description 23.4. Using Genlock Controller IP Software 23.5. Genlock Controller IP Registers 23.6. Genlock Controller IP Software API
23.1. About the Genlock Controller IP x
23.1.1. Genlock Controller IP Performance and Resources
23.3. Genlock Controller IP Functional Description x
23.3.1. Genlock Controller IP Interfaces
23.4. Using Genlock Controller IP Software x
23.4.1. Achieving Genlock Controller Free Running (for Initialization or from Lock to Reference Clock N) 23.4.2. Locking to Reference Clock N (from Genlock Controller IP free running) 23.4.3. Setting the VCXO hold over 23.4.4. Restarting the Genlock Controller IP 23.4.5. Locking to Reference Clock N New (from Locking to Reference Clock N Old) 23.4.6. Changing to Reference Clock or VCXO Base Frequencies (switch between p50 and p59.94 video formats and vice-versa) 23.4.7. Disturbing a Reference Clock (a cable pull)
24. Generic Crosspoint Intel® FPGA IP x
24.1. About the Generic Crosspoint IP 24.2. Generic Crosspoint IP Parameters 24.3. Generic Crosspoint IP Interfaces 24.4. Generic Crosspoint IP Registers 24.5. Generic Crosspoint IP Software API
24.1. About the Generic Crosspoint IP x
24.1.1. Generic Crosspoint IP Features 24.1.2. Generic Crosspoint Performance and Resources
25. Genlock Signal Router Intel® FPGA IP x
25.1. About the Genlock Signal Router IP 25.2. Genlock Signal Router IP Parameters 25.3. Genlock Signal Router IP Interfaces 25.4. Genlock Signal Router IP Registers 25.5. Genlock Signal Router IP Software API
25.1. About the Genlock Signal Router IP x
25.1.1. Genlock Signal Router IP Features 25.1.2. Genlock Signal Router IP Performance and Resources
26. Guard Bands Intel® FPGA IP x
26.1. About the Guard Bands IP 26.2. Guard Bands IP Parameters 26.3. Guard Bands IP Interfaces 26.4. Guard Bands IP Registers 26.5. Guard Bands IP Software API
26.1. About the Guard Bands IP x
26.1.1. Guard Bands IP Performance and Resources
27. Interlacer Intel® FPGA IP x
27.1. About the Interlacer IP 27.2. Interlacer IP Parameters 27.3. Interlacer IP Functional Description 27.4. Interlacer IP Registers 27.5. Interlacer IP Software API
27.1. About the Interlacer IP x
27.1.1. Interlacer IP Performance and Resources
27.3. Interlacer IP Functional Description x
27.3.1. Interlacer IP Interfaces
28. Mixer Intel® FPGA IP x
28.1. About the Mixer IP 28.2. Mixer IP Parameters 28.3. Mixer IP Functional Description 28.4. Mixer IP Registers 28.5. Mixer IP Software API
28.1. About the Mixer IP x
28.1.1. Mixer IP Performance and Resources
28.3. Mixer IP Functional Description x
28.3.1. Mixer IP Interfaces
29. Pixels in Parallel Converter Intel® FPGA IP x
29.1. About the Pixels in Parallel Converter IP 29.2. Pixels in Parallel Converter IP Parameters 29.3. Pixels in Parallel Converter Interfaces 29.4. Pixels in Parallel Converter Registers 29.5. Pixels in Parallel Converter IP Software API
29.1. About the Pixels in Parallel Converter IP x
29.1.1. Pixels in Parallel Converter IP Performance and Resources
30. Scaler Intel® FPGA IP x
30.1. About the Scaler 30.2. Scaler IP Parameters 30.3. Scaler IP Functional Description 30.4. Scaler IP Registers 30.5. Scaler IP Software API
30.1. About the Scaler x
30.1.1. Scaler IP Performance and Resources
30.2. Scaler IP Parameters x
30.2.1. Scaler Maximum Resolution
30.3. Scaler IP Functional Description x
30.3.1. Coefficient Selection 30.3.2. Coefficient Quantization 30.3.3. Filter Behavior at Edge Boundaries 30.3.4. Partial Frame Scaling 30.3.5. 422 and 420 Chroma Sampled Data Scaling 30.3.6. Scaler IP Interfaces
30.3.1. Coefficient Selection x
30.3.1.1. Updating Scaler IP Runtime Coefficients
31. Stream Cleaner Intel® FPGA IP x
31.1. About the Stream Cleaner IP 31.2. Stream Cleaner IP Parameters 31.3. Stream Cleaner IP Functional Description
31.1. About the Stream Cleaner IP x
31.1.1. Stream Cleaner IP Performance and Resources
31.3. Stream Cleaner IP Functional Description x
31.3.1. Stream Cleaner IP Interfaces
32. Switch Intel® FPGA IP x
32.1. About the Switch IP 32.2. Switch IP Parameters 32.3. Switch IP Functional Description 32.4. Switch IP Registers 32.5. Switch IP Software API
32.1. About the Switch IP x
32.1.1. Switch IP Performance and Resources
32.3. Switch IP Functional Description x
32.3.1. Switch IP Latency 32.3.2. Switch IP Interfaces
33. Tone Mapping Operator Intel® FPGA IP x
33.1. About the Tone Mapping Operator IP 33.2. TMO IP Parameters 33.3. TMO IP Block Description 33.4. TMO IP Registers 33.5. TMO IP Software API
33.1. About the Tone Mapping Operator IP x
33.1.1. TMO IP Features 33.1.2. TMO IP Performance and Resource Utilization
33.3. TMO IP Block Description x
33.3.1. TMO IP Interfaces 33.3.2. TMO IP Latency
34. Test Pattern Generator Intel® FPGA IP x
34.1. About the Test Pattern Generator IP 34.2. Test Pattern Generator IP Parameters 34.3. Test Pattern Generator IP Functional Description 34.4. Test Pattern Generator IP Registers 34.5. Test Pattern Generator IP Software API
34.1. About the Test Pattern Generator IP x
34.1.1. Test Pattern Generator IP Performance and Resources
34.3. Test Pattern Generator IP Functional Description x
34.3.1. Test Pattern Generator IP Interfaces
35. Video and Vision Monitor Intel FPGA IP x
35.1. About the Video and Vision Monitor IP 35.2. Video and Vision Monitor IP Parameters 35.3. Video and Vision Monitor IP Functional Description 35.4. Video and Vision Monitor IP Registers 35.5. Video and Vision Monitor Software API
35.1. About the Video and Vision Monitor IP x
35.1.1. Video and Vision Monitor IP Performance and Resources
35.3. Video and Vision Monitor IP Functional Description x
35.3.1. Video and Vision Monitor IP Interfaces
36. Video Frame Buffer Intel® FPGA IP x
36.1. About the Video Frame Buffer IP 36.2. Video Frame Buffer IP Parameters 36.3. Video Frame Buffer IP Functional Description 36.4. Video Frame Buffer IP Registers 36.5. Video Frame Buffer IP Software API
36.1. About the Video Frame Buffer IP x
36.1.1. Video Frame Buffer Performance and Resources
36.3. Video Frame Buffer IP Functional Description x
36.3.1. Video Frame Buffer IP Interfaces
37. Video Frame Reader Intel FPGA IP x
37.1. About the Video Frame Reader IP 37.2. Video Frame Reader IP Parameters 37.3. Video Frame Reader IP Functional Description 37.4. Video Frame Reader IP Registers 37.5. Video Frame Reader IP Software API
37.1. About the Video Frame Reader IP x
37.1.1. Video Frame Reader IP Performance and Resources
37.3. Video Frame Reader IP Functional Description x
37.3.1. Video Frame Reader IP Interfaces
38. Video Frame Writer Intel FPGA IP x
38.1. About the Video Buffer Writer IP 38.2. Video Frame Writer IP Parameters 38.3. Video Frame Writer IP Functional Description 38.4. Video Frame Writer IP Registers 38.5. Video Frame Writer IP Software API
38.1. About the Video Buffer Writer IP x
38.1.1. Video Frame Writer IP Performance and Resources
38.3. Video Frame Writer IP Functional Description x
38.3.1. Video Frame Writer IP Interfaces
39. Video Streaming FIFO Intel® FPGA IP x
39.1. About the Video Streaming FIFO IP 39.2. Video Streaming FIFO IP Parameters 39.3. Video Streaming FIFO IP Interfaces
39.1. About the Video Streaming FIFO IP x
39.1.1. Video Streaming FIFO IP Performance and Resources
40. Video Timing Generator Intel® FPGA IP x
40.1. About the Video Timing Generator IP 40.2. Video Timing Generator IP Parameters 40.3. Video Timing Generator IP Functional Description 40.4. Video Timing Generator IP Interfaces 40.5. Video Timing Generator IP Registers 40.6. Video Timing Generator IP Software API
40.1. About the Video Timing Generator IP x
40.1.1. Video Timing Generator IP Features 40.1.2. Video Timing Generator IP Performance and Resources
41. Warp Intel® FPGA IP x
41.1. About the Warp IP 41.2. Warp IP Parameters 41.3. Warp IP Block Description 41.4. Warp IP Registers 41.5. Warp IP Software API
41.1. About the Warp IP x
41.1.1. Warp IP Features 41.1.2. Warp IP Performance and Resource Utilization
41.3. Warp IP Block Description x
41.3.1. Block Cache Tool 41.3.2. Warp IP Interfaces 41.3.3. Warp IP Latency 41.3.4. External Memory for Warp IP
41.5. Warp IP Software API x
41.5.1. Using Warp IP Software 41.5.2. Warp IP Software Code Examples
42. Design Security x
42.1. Memory Subsystems 42.2. Considering Design Security
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. Bits per Color Sample Adapter Intel FPGA IP
11. Chroma Key Intel® FPGA IP
12. Chroma Resampler Intel® FPGA IP
13. Clipper Intel® FPGA IP
14. Clocked Video Input Intel® FPGA IP
15. Clocked Video to Full-Raster Converter Intel® FPGA IP
16. Clocked Video Output Intel® FPGA IP
17. Color Space Converter Intel® FPGA IP
18. Deinterlacer Intel® FPGA IP
19. FIR Filter Intel® FPGA IP
20. Frame Cleaner Intel® FPGA IP
21. Full-Raster to Clocked Video Converter Intel® FPGA IP
22. Full-Raster to Streaming Converter Intel® FPGA IP
23. Genlock Controller Intel® FPGA IP
24. Generic Crosspoint Intel® FPGA IP
25. Genlock Signal Router Intel® FPGA IP
26. Guard Bands Intel® FPGA IP
27. Interlacer Intel® FPGA IP
28. Mixer Intel® FPGA IP
29. Pixels in Parallel Converter Intel® FPGA IP
30. Scaler Intel® FPGA IP
31. Stream Cleaner Intel® FPGA IP
32. Switch Intel® FPGA IP
33. Tone Mapping Operator Intel® FPGA IP
34. Test Pattern Generator Intel® FPGA IP
35. Video and Vision Monitor Intel FPGA IP
36. Video Frame Buffer Intel® FPGA IP
37. Video Frame Reader Intel FPGA IP
38. Video Frame Writer Intel FPGA IP
39. Video Streaming FIFO Intel® FPGA IP
40. Video Timing Generator Intel® FPGA IP
41. Warp Intel® FPGA IP
42. Design Security
43. Document Revision History for Video and Vision Processing Suite User Guide

23.5. Genlock Controller IP Registers

The IP allows runtime configuration of parameters via Avalon memory-mapped processor register interface.
Table 366.   Genlock Controller IP Registers
Offset Register Access Description
Parameterization Registers
0x000 VID PID RO

Read this register to retrieve clocked video input product ID. This register always returns 0x6FA7_0170.

0x004 Version number RO Read this register to retrieve the version information for the Intel Quartus release that Intel uses to build this IP.

0x008 to

0x00C

Reserved - Reserved register area.
0x010 CPU clock frequency RO Read this register to retrieve the value for the CPU clock frequency in Hz.
0x014 Number of reference clock RO Read this register to retrieve the value for the number of input reference clocks used by this IP.
0x018 Difference value delta size RO Read this value to retrieve the value for the number of bits this IP uses to calculate the phase or frequency error between two samples.
0x01C Difference value size RO Read this value to retrieve the value for the number of bits this IP uses to calculate the phase or frequency error
0x020 Sample period counter size RO Read this register to retrieve the number of bits this IP uses to generate a sample period counter
0x024 LPF to DAC LSB position RO Read this register to retrieve the position of the LSBs that the IP ignores to calculate the error.
0x028 DAC resolution RO Read this register to retrieve the number of bits this IP uses to set the DAC resolution logic
0x02C PWM Output Clock Divider Value RO Read this register to retrieve the exact value used to divide the clock generating the PWM output pulse
0x030 Derivative enable RO Read this register to check if the derivate logic for this IP is on
0x034 LPF Mode RO Read this register to retrieve the exact mode of operation for the low pass filter
0x038 Proportional gain mode RO Read this register to retrieve the exact mode of operation for the proportional gain
0x03C Integral gain mode RO Read this register to retrieve the exact mode of operation for the integral gain
0x040 Derivative gain mode RO Read this register to retrieve the exact mode of operation for the derivative gain
0x044 VCXO Lock Confidence Counter Size RO Read this register to retrieve the number of bits this IP uses to generate a confidence lock counter
0x048 Enable Debug RO Read this register to check if the debugging logic for this IP is on
Core Specific Registers
0x148 PFD Control RW This register configures the phase and frequency detector logic
0x14C PFD Status RO This register provides debug information about the phase and frequency detector logic
0x150 LPF Control 1 RW This register configures the LPF logic
0x154 LPF Control 2 RW This register configures the LPF logic
0x158 LPF Status RO This register provides debug information about the LPF logic
0x15C DAC Control RW This register configures the DAC control logic
0x160 DAC Status RO This register provides debug information about the DAC control logic
0x164 LPF Control 3 RW This register configures the LPF logic
0x168 Clock Debug Status 1 RO This register provides debug information about the VCXO clock frequency
0x16C Clock Debug Status 2 RO This register provides debug information about the Ref0 clock frequency
0x170 Clock Debug Status 3 RO This register provides debug information about the Ref1 clock frequency
0x174 Clock Debug Status 4 RO This register provides debug information about the Ref2 clock frequency
0x178 Clock Debug Status 5 RO This register provides debug information about the Ref3 clock frequency
0x17C PFD Debug Status RO This register provides debug information about the PFD accumulated error
0x180 Profiler Control RW This register configures the genclok profiler
0x184 Profiler Error Mapping 1 RW This register allows define a genlock profile error region
0x188 Profiler Error Mapping 2 RW This register allows define a genlock profile error region
0x18C Profiler Pixel Counter RO This register provides pixel count information gathered by the genlock profiler module
0x190 Profiler Jitter Sample RO This register provides jitter information gathered by the genlock profiler module
0x194 Profiler Statistics RO This register provides statistics information gathered by the genlock profiler module
0x198 to 0x1A0 Reserved - Reserved register area
0x1A4 Tx Rx Ref0 Clock Ratio RW If Ref0 clock frequency is greater than VCXO clock frequency, this register sets the ratio between the two clocks. Otherwise set this register to 1.0
0x1A8 Tx Rx Ref1 Clock Ratio RW If Ref1 clock frequency is greater than VCXO clock frequency, this register sets the ratio between the two clocks. Otherwise set this register to 1.0
0x1AC Tx Rx Ref2 Clock Ratio RW If Ref2 clock frequency is greater than VCXO clock frequency, this register sets the ratio between the two clocks. Otherwise set this register to 1.0
0x1B0 Tx Rx Ref3 Clock Ratio RW If Ref3 clock frequency is greater than VCXO clock frequency, this register sets the ratio between the two clocks. Otherwise set this register to 1.0
0x1B4 Tx Rx VCXO Clock Ratio RW If VCXO clock frequency is greater than reference clock frequency, this register sets the ratio between the two clocks. Otherwise set this register to 1.0

Register Bit Descriptions

Table 367.   PFD Control
Bits Name Description
0 Enable
  • ‘1’ enables the PFD error value e(t) outputs that drive the LPF Inputs.
  • ‘0’ produces no output but the internal counters still run and hence an algorithm restart sequence is required before use. Enable should be the last bit to transition in this register.
3:2 Ref Clock Switch Selection

Determines the reference clock for VCXO tracking:

  • 00=ref0_clk (default)
  • 01=ref1_clk
  • 10=ref2_clk
  • 11=ref3_clk

Clock selection should only select clocks that exist in the design and ideally are running.
7:4 Ref Clock Reset

A 4-bit wide vector where each bit corresponds to an input reference clock (bit 4 = ref0_clk and bit 7 = ref3_clk). A 1 puts that reference places clock counter into reset and out of reset when you write, with bit 12 before you enable the PFD.

12 VCXO Clock Reset

A ‘1’ puts the VCXO clock counter into reset and out of reset when you write ‘0’. Set this bit when you reset the corresponding Ref Clock Reset required for tracking against.

31:16 Output Update Period MSBS

Defines the top 16 MSB of the output update period counter. The LSB are defined by the C_ERR_UPDATE_BITS at build and is the duration of error updates from the PFD to the LPF (and subsequently the DAC).

Set up this value before you use the Enable bit.

Table 368.   PFD Status
Bits Name Description
3:0 Ref Clock Running

A 4 bits vector where each bit corresponds to an input reference clock (bit 0 = ref0_clk and bit 3 = ref3_clk) to indicate that the reference clock appears to be running. Running is based on samples the IP takes against the VCXO clock. If C_ENABLE_DEBUG>0, further clock measure registers are available.

7:4 Ref Clock Stopped

A 4 bits vector where each bit corresponds to an input reference clock (bit 0 = ref0_clk and bit 3 = ref3_clk) to indicate that the reference clock stops changing over the sampling period. These bits are sticky and only reset following an algorithm restart sequence.

If the clock that dies is the current selected reference clock, the PFD does not update any further error changes to the LPF. The IP requires a restart sequence using either another reference clock or the same reference clock if it returns. The output disabled status is indicated in bit 9.

8 Overflow

Indicates an overflow in the difference between the internal tracking counters. An overflow is a serious error and the VCXO can be tracking anywhere. This bit only resets after a restart.

9 Output Disabled

Indicates that the output is currently disabled because of the reference clock dying. The IP makes no further updates to the LPF. This bit only clears following an algorithm restart sequence.

10 diff_diff_value Output Overflow

This output value is smaller than the internal value you use. Indicates an overflow if the smaller value saturates. Consider increasing C_ERR_VAL_BITS. This bit only resets after an algorithm restart.

11 (diff_diff_value – last diff_diff_value) Output Overflow

This output value is smaller than the internal value. Indicates an overflow if the smaller value saturates. Consider increasing C_ERR_VAL_BITS. This bit only resets after a restart.

Table 369.  Profiler Control
Bits Name Description
15:8

Reference Jitter Value

This value defines a genlock region equal to +/- number of pixels, where a SOF signal is allowed to jitter before the frame is outside the genlock region
6:4 GPO Clock Divider

This register defines the sample rate at which the IP updates the GPO with a new value.

  • ‘4’ = every ¼ of a second
  • ‘2’ = every ½ a second
  • Other values = every second
0 Reset Frame Counter Reset the frame counter register.
Table 370.  Profiler GPO Error Mapping 1
Bits Name Description
31:16

GPO Error Region 2

This value defines the upper bound for the first GPO error mapping region.

This value also defines the lower bound for the second GPO error mapping region.
15:0 GPO Error Region 1

This value defines the lower bound for the first GPO error mapping region.

This value defines the upper bound for the GPO genlock mapping region.
Table 371.  Profiler Error Mapping 2
Bits Name Description
31:16

GPO Error Region 4

This value defines the upper bound for the third GPO error mapping region.

This value defines the lower bound for the fourth GPO error mapping region.
15:0 GPO Error Region 3

This value defines the lower bound for the third GPO error mapping region.

This value defines the upper bound for the second GPO error mapping region
Table 372.  Profiler Pixels Counter
Bits Name Description
31:0 Total Pixels per Frame Count of number of pixels per input frame
Table 373.  Profiler Jitter Sample
Bits Name Description
31:16

SOF Delay

Count of number of pixels between receive and transmit SOF signals
15:0 Jitter Counter Count of number of pixels between two consecutives SOF pulses
Table 374.  Profiler Statistics
Bits Name Description
31:0 Bad Frames Counter

Count of frames that are outside the predefined genlock region set using the Reference Jitter Value

Table 375.   LPF Control 1
Bits Name Description
0 Enable
  • 1 enables the LPF.
  • 0 keeps it in reset.

You can enable the LPF anytime if the PFD is not enabled as no input values enter the LPF.
1 Integral Accumulator Reset Disable

If the DAC output reaches its maximum value (in either positive or negative direction), it automatically resets the Integral to the reset value as defined in LPF Control 2 register. Writing 1 to this bit stops the automatic reset, which may be useful for debugging.

2 Lock Loss Confidence Count Enable

This bit turns on the confidence counter for detection loss of lock. The IP gains lock when the lock confidence counter reaches its maximum value (C_LOCK_CNT_SIZE) and the IP sees successive no errors. However, a single error causes loss of lock immediately. Enabling this bit allows you to use the same confidence counter for indicating loss of lock. The IP indicates only if it reaches its minimum value of zero loss of. Hence lock status changes only when the extremes of the confidence counter are hit.

7:3 Lock Status LSB Position

By default, the IP allows 1 LSB bit change that does not change the lock status. You can increase the number of LSB bits by up to 31 (to 32 LSB) using these register bits. If the LSB position exceeds the size of the error value (C_CLK_DIV_BITS for diff_val in Phase mode, or C_ERR_VAL_BITS for diff_diff_val in Frequency mode), no amount of error causes the IP to lose lock.

17:16 Locked Status Control

Controls how the IP derives the Locked Status in the LPF Status Register.

00 = Frequency mode. Diff_Diff_Val Input is very small. The IP allows 1 LSB change and still indicates lock. You can increase the LSB position by up to a further 3 positions (to 4) using bits 31:30. Increase when you see larger error values because of larger sampling windows or jittery input.

01 = Phase mode. Diff_Val Input is very small. The IP allows 1 LSB change and still indicates lock. You can increase the LSB position by up to a further 3 positions (to 4) using bits 31:30.

  • 10 = Reserved.
  • 11 = Reserved.
18 I Mode

Defines the integral mode.

  • ‘0’ for Frequency mode where the integral part of the filter performs I = Sum of (I Gain * Diff_Diff_Val)
  • ‘1’ for Phase mode where the integral part of the filter performs I = Sum of (I Gain * Diff_Val)
19 P Mode

Defines the proportional mode

  • ‘0’ for Frequency mode where the proportional part of the filter performs P = P Gain * Diff_Diff_Val
  • ‘1’ for Phase mode where the proportional part of the filter performs P = P Gain * Diff_Val
24 D Mode

Defines the differential mode.

  • ‘0’ for Frequency mode where the differential part of the filter performs D = D Gain * (Diff_Diff_Val – last Diff_Diff_Val)
  • ‘1’ for Phase mode where the differential part of the filter performs D = D Gain * Diff_Diff_Val
25 Negative I Gain

Inverts the sign of the 2’s complement input error. A positive input turns negative and vise-versa for the integral gain. Select this value after selecting I Mode.

26 Negative P Gain

Inverts the sign of the 2’s complement input error A positive input turns negative and vise-versa for the proportional gain. Select this value after selecting P Mode.

27 Negative D Gain

Inverts the sign of the 2’s complement input error. A positive input turns negative and vise-versa for the differential gain. Select this value after selecting D Mode.

28 I Gain Fraction

This bit reverses the direction of the I Gain powers of 2 shift, producing fractions of gain, instead of whole number gain.

29 Reset DAC Saturation Status

Setting high clears any latched DAC Saturation status as indicated in the LPF Status register. You must return this bit low.

Table 376.   LPF Control 2
Bits Name Description
31:0 Integral Accumulator Reset Value

Value the IP loads into the 32 LSBs of the integral accumulator at reset or if it is reset by saturation (if on).

If the internal integral size is greater than 31 bits, the IP uses the MSB of this register as a sign extend.
Table 377.   LPF Status
Bits Name Description
0 Locked

Indicates when the error from the PFD reduces to a very small amount indicating locked status.
1 Integral Overflow

Indicates that an overflow in the integral accumulator is occurring and is reaching its maximum positive or negative value. It remains at that value until reset as part of a restart (refer to Software Usage). This bit indicates a serious error and the VCXO can be tracking anywhere.

2 DAC Saturated

Indicates that the DAC value output from the filter reaches its maximum positive or negative value. It automatically resets the Integral accumulator to its reset value unless you disable it using the LPF Control 1 register bit 1. This bit remains set until you clear it using bit 29 in the LPF Control 1 register.

Table 378.   DAC Control
Bits Name Description
0 Output Enable

‘0’ Outputs High Impedance on the VCXO Driver Pin. ‘1’ enables the DAC to drive the pin. Avoid contention before enabling the DAC and any HW I2C writes in advance.

3:1 DAC Output Data Select

Controls the PWM output via binary offset input value:

  • 000 = sets mid value and VCXO sits at mid frequency
  • 001 = uses value input from LPF Output (converted from 2’s complement, which is just inverted MSB).
  • 010 = sets largest negative value and slowest VCXO frequency
  • 011 = sets largest positive value and fastest VCXO frequency
  • 100 = Use CPU value bits 31:8
  • 101 – 111 = Reserved
4 Hold

Hold value and do not update anymore. Only valid for DAC Output Data Select = 001.

5 Output Force Low

When set, the IP forces the PWM output low and ignores the output mode. Output Force High has a higher priority.

6 Output Force High

When set, the IP forces the PWM output high and ignores the output mode. This bit takes priority over Output Force Low.

7 Output Clock Divide Disable

By default, the IP sets the output clock rate of the DAC control pin using the build time parameter C_DAC_CLK_DIV.

If this bit is 1, the build time divide is disabled, and the output clock rate runs at full speed (which is half the VCXO frequency).

31:8 CPU DAC Output Data Value

Only available if DAC Output Data Select = 100. Value must be offset binary range to the size of the DAC output as in the DAC Status Register. 2’s complement to offset binary conversion is invert MSB.

Examples (assuming 24bit DAC size):

  • 0x000000 sets largest negative value and slowest VCXO frequency
  • 0xFFFFFF sets largest positive value and fastest VCXO frequency
  • 0x800000 sets the mid value and the VCXO sets at its mid frequency
Table 379.   DAC Status
Bits Name Description
23:0 Current DAC Output Data Value

Current offset binary range number that the DAC produces.
Table 380.   LPF Control 3
Bits Name Description
7:0 I Gain

Integral Gain. Provides powers of 2 shifts to the input error value e(t) (2’s complement positive or negative number). The IP adds or subtracts this value into the Integrator before adding it to the final output sum. Valid values are 0 to 15 where 0 means that the IP does not use the integral in the control value to the DAC.

Example: Gain set to 7, gives 2^(7-1) = 64 i.e. the input e(t) is multiplied by 64.

The input error value the IP uses depends on the I Mode bit and is either Diff_Val for Phase Mode or Diff_Diff_Val for Frequency Mode.

You can invert the gain such that in the example above the input can be multiplied by -64. You invert the gain with the Negative I Gain Mode bit.

Modes may not be available because of build parameters even though the bits remain persistent in this control register. Identify build time parameters using the LPF Status register.

15:8 P Gain

Proportional gain. Provides powers of 2 shifts to the input error value e(t) (2’s complement positive or negative number). The IP adds or subtracts this value to the final output sum. Valid values 0 to 15 where 0 means that IP does not use the in the control value to the DAC.

Example: Gain set to 7, gives 2^(7-1) = 64 i.e. the input e(t) is multiplied by 64.

The Input Error Value depends on the P Mode bit and is either Diff_Val for Phase Mode or Diff_Diff_Val for Frequency Mode.

You can invert the gain such that in the example above the input can be multiplied by -64. Set the gain using the Negative P Gain Mode bit.

Additionally, changes the gain shift (left or right) using the I Gain Fraction bit. Right Shifts produce fractional power of 2, which are useful after locking to reduce jitter caused by changes in the input error.

Modes may not be available because of build parameters even though the bits remain persistent in this control register. Use the LPF Status register to identify build time parameters.

23:16 D Gain

Derivative gain. Provides powers of 2 shifts to the input error value e(t) (2’s complement positive or negative number). The IP adds or subtracts this value to the final output sum. Valid values 0 to 15 where 0 means that the derivative is not used in the control value to the DAC.

Example: Gain set to 7, gives 2^(7-1) = 64 i.e. the input e(t) is multiplied by 64.

The input error value depends on the D Mode bit and is either Diff_Diff_Val for Phase Mode or (Diff_Diff_Val – last Diff_Diff_Val) for Frequency Mode.

You can invert the gain such that in the example above the input can be multiplied by -64. Set this gain using the Negative D Gain Mode bit.

Modes may not be available because of build parameters even though the bits remain persistent in this control register. Use the LPF Status register to identify build time parameters.

Table 381.   Clock Debug Status 1
Bits Name Description
31:0 VCXO Clock Measure

Count of clock ticks over 1 second. Zero indicates clock not running. Spurious counts indicate unstable clock. Stable clocks may deviate by a couple of counts because of frequency of CPU clock used to measure against and metastability.

Table 382.   Clock Debug Status 2 to 5
Bits Name Description
31:0 Ref 0-3 Clock Measure

Count of clock ticks over 1 second. Zero indicates clock not running. Spurious counts could indicate unstable clock. Stable clocks may deviate by a couple of counts because of frequency of CPU clock the IP uses to measure against and metastability.

Table 383.   PFD Debug Status
Bits Name Description
31:0 Current e(t)

This value indicates the current internal e(t) value (PFD counter difference value Diff_Val) that represents the continuous error difference value. It is a 2’s complement value representing positive and negative numbers indicating which counter (reference clock or VCXO clock) is ahead.

For Frequency Mode, the error value should trend to a value and remain there. Although it may oscillate around the trend value and drift slowly over time.

For Phase Mode, the error value should reduce to zero and remain there. Although it may oscillate +/- 1. It should not drift over time.

Table 384.   TxRx VCXO Clock Ratio
Bits Name Description
26:22 VCXO Integer number part

Sets the integer part of the clock ratio value. For example, if the clock ratio value is 8.750, this field needs to be set to 8.

21:0 VCXO Fractional number part

Sets the fractional part of the clock ratio value. For example, if the clock ratio value is 8.750, this field needs to be set to (2^22) * (0.750). The 2^22 multiplying factor is because of this IP using 22 bits to represent the fractional part in a fixed-point format.

Table 385.   TxRx Ref 0-3 Clock Ratio
Bits Name Description
26:22 Ref 0-3 Integer number part

Sets the integer part of the clock ratio value. For example, if the clock ratio value is 8.750, this field needs to be set to 8.

21:0 Ref 0-3 Fractional number part

Sets the fractional part of the clock ratio value. For example, if the clock ratio value is 8.750, this field needs to be set to (2^22) * (0.750). The 2^22 multiplying factor is because of this IP using 22 bits to represent the fractional part in a fixed-point format.

Level Two Title