Granite River Labs GRL-DP21-SINK-AN User manual

Granite River Labs
DisplayPortTM PHY 2.1 Receiver Calibration and Test
User Guide & Method of Implementation (MOI)
Using
Anritsu MP1900A BERT and High Performance Real-Time
Oscilloscope
with
GRL-DP21-SINK-AN DisplayPort 2.1 Receiver Calibration and
Test Automation Software
Published on 09 December 2022

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GRL-DP21-SINK-AN User Guide & MOI Rev. 2.5
© Granite River Labs 2022 Version 2.5, Dec 2022. Updated 12.09.2022 Page 2 of 105
DISCLAIMER
This document is provided "as is" with no warranties whatsoever, including any warranty of
merchantability, no infringement, fitness for any particular purpose, or any warranty otherwise
arising out of any proposal, specification, or sample. The GRL disclaims all liability for
infringement of proprietary rights, relating to use of information in this specification. No license,
express or implied, by estoppel or otherwise, to any intellectual property rights is granted herein.
All product names are trademarks, registered trademarks, or service marks of their respective
owners.
In no event shall VESA™or any member of VESA be liable for any direct, indirect, special,
exemplary, punitive, or consequential damages, including, without limitation, lost profits, even if
advised of the possibility of such damages.
This material is provided for reference only. VESA does not endorse any vendor’s equipment
including equipment outlined in this document.
Copyright © 2022 Granite River Labs. All rights reserved.

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TABLE OF CONTENTS
1INTRODUCTION 9
2RESOURCE REQUIREMENTS 10
2.1 EQUIPMENT REQUIREMENTS .................................................................................................. 10
2.2 SOFTWARE REQUIREMENTS.................................................................................................... 12
3INSTALLING AND SETTING UP GRL-DP21-SINK-AN SOFTWARE 13
3.1 DOWNLOAD AND SET UP GRL-DP21-SINK-AN SOFTWARE ....................................................... 13
3.1.1 On the Anritsu MP1900A BERT................................................................................. 13
3.1.2 On the PC Used for GRL Framework Installation.................................................... 14
3.2 CONFIGURE THE GRL-DP21-SINK-AN SOFTWARE BEFORE CALIBRATION AND TESTING................. 17
3.2.1 Enter Calibration/Test Session Information ........................................................... 17
3.2.2 Set Up Conditions for Calibration/Testing.............................................................. 17
3.2.3 Set Up AUX Controller for DUT Test Automation.................................................... 19
3.3 SELECT CALIBRATION/TEST ................................................................................................... 19
3.4 CONFIGURE CALIBRATION/TEST PARAMETERS........................................................................... 21
3.5 CONFIGURE CALIBRATION TARGET VALUES ............................................................................... 23
3.6 RUN CALIBRATION/TESTS...................................................................................................... 24
4SINK CALIBRATION CONNECTION SETUPS 26
4.1 PRE-CALIBRATION/TEST PROCEDURES .................................................................................... 26
4.2 CONNECTION SETUP FOR ANRITSU MP1900A BERT GENERATOR SET......................................... 26
4.3 DISPLAYPORT USB TYPE-C FIXTURE CONNECTOR PIN ASSIGNMENTS........................................... 27
4.4 STANDARD/MINI DISPLAYPORT FIXTURE CONNECTOR PIN ASSIGNMENTS ...................................... 28
4.5 CALIBRATION CONNECTION SETUPS ........................................................................................ 29
4.5.1 Calibration Setup at TP1.......................................................................................... 29
4.5.2 Calibration Setup at TP3_EQ for DisplayPort USB Type-C Mode........................... 30
4.5.3 Calibration Setup at TP3_EQ for Standard/Mini DisplayPort Mode ...................... 33
5SINK DUT COMPLIANCE TEST SETUPS 36
5.1 TEST CONNECTION SETUPS ................................................................................................... 36
5.1.1 DUT BER Compliance Test Setup at TP1 for DisplayPort USB Type-C Mode......... 36
5.1.2 DUT BER Compliance Test Setup at TP1 for Standard/Mini DisplayPort Mode .... 38
5.1.3 DUT BER Compliance Test Setup at TP3_EQ for DisplayPort USB Type-C Mode.. 40
5.1.4 DUT BER Compliance Test Setup at TP3_EQ for Standard/Mini DisplayPort Mode43
5.1.5 Margin Testing.......................................................................................................... 45

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6TEST RESULTS AND REPORTS USING GRL-DP21-SINK-AN 47
6.1.1 DUT Information....................................................................................................... 48
6.1.2 Results Summary Table ........................................................................................... 48
6.1.3 Calibration & Test Result Details ............................................................................. 50
6.2 DELETE TEST RESULTS .......................................................................................................... 51
7SAVING AND LOADING TEST SESSIONS 52
8APPENDIX A: MANUAL CTS SINK CALIBRATION AND TEST PROCEDURE 53
8.1 CALIBRATE RECEIVER STRESSED EYE FOR UHBR 10 (10.0 GBIT/S) AT TP1................................... 53
8.1.1 Set Up Oscilloscope ................................................................................................. 59
8.1.2 Record ISI Measurements ........................................................................................ 63
8.2 CALIBRATE AND SAVE FOR UHBR 10 (10.0 GBIT/S) RECEIVER AT TP3_EQ................................... 78
8.3 CALIBRATE AND SAVE FOR UHBR 13.5 (13.5 GBIT/S) RECEIVER AT TP1....................................... 83
8.3.1 Set Up Oscilloscope ................................................................................................. 83
8.3.2 Record ISI Measurements ........................................................................................ 85
8.4 CALIBRATE AND SAVE FOR UHBR 13.5 (13.5GBIT/S) RECEIVER AT TP3_EQ ................................ 87
8.5 CALIBRATE AND SAVE FOR UHBR 20 (20.0 GBIT/S) RECEIVER AT TP1.......................................... 92
8.5.1 Set Up Oscilloscope ................................................................................................. 92
8.5.2 Record ISI Measurements ........................................................................................ 94
8.6 CALIBRATE AND SAVE FOR UHBR 20 (20.0 GBIT/S) RECEIVER AT TP3_EQ................................... 96
9APPENDIX B: CONNECTING KEYSIGHT OSCILLOSCOPE TO PC 102
10 APPENDIX C: CONNECTING TEKTRONIX OSCILLOSCOPE TO PC 104

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List of Figures
Figure 1. Turn on Miscellaneous System.............................................................................................14
Figure 2. Select and Launch GRL Framework .....................................................................................14
Figure 3. Start DisplayPort Sink Test 2.1 Application .........................................................................15
Figure 4. See License Details................................................................................................................15
Figure 5. Check License for Installed Application...............................................................................15
Figure 6. Connect Instruments with GRL Software.............................................................................16
Figure 7. Session Info Page ..................................................................................................................17
Figure 8. Select Lane Under Tests .......................................................................................................18
Figure 9. Select Test Points..................................................................................................................18
Figure 10. Select Data Rates ................................................................................................................18
Figure 11. Select SJ Frequencies.........................................................................................................19
Figure 12. Select Aux Controller ..........................................................................................................19
Figure 13. Calibration Selection ..........................................................................................................20
Figure 14. Tests Selection ....................................................................................................................20
Figure 15. Parameters Configuration Page .........................................................................................21
Figure 16. Calibration Overwrite..........................................................................................................24
Figure 17. Run Tests Page....................................................................................................................24
Figure 18. Connection Setup for MP1900A BERT Generator Set Modules .........................................26
Figure 19. DisplayPort USB Type-C Receptacle Fixture Connector Pin Assignments .......................27
Figure 20. DisplayPort USB Type-C Plug Fixture Connector Pin Assignments ..................................27
Figure 21. Standard/Mini DisplayPort Receptacle Fixture Connector Pin Assignments...................28
Figure 22. Standard/Mini DisplayPort Plug Fixture Connector Pin Assignments..............................28
Figure 23. Typical TP1 Sink Calibration Setup....................................................................................29
Figure 24. Setup for TP3_EQ Calibration at 10G for DisplayPort USB Type-C Mode.........................30
Figure 25. Setup for TP3_EQ Calibration at 13.5G for DisplayPort USB Type-C Mode......................31
Figure 26. Setup for TP3_EQ Calibration at 20G for DisplayPort USB Type-C Mode.........................32
Figure 27. Setup for TP3_EQ Calibration at 10G for Standard/Mini DisplayPort Mode.....................33
Figure 28. Setup for TP3_EQ Calibration at 13.5G for Standard/Mini DisplayPort Mode..................34
Figure 29. Setup for TP3_EQ Calibration at 20G for Standard/Mini DisplayPort Mode.....................35
Figure 30. BER Compliance Test Setup for DP Sink DUT at TP1 for DisplayPort USB Type-C Mode.36
Figure 31. BER Compliance Test Setup for DP Sink DUT at TP1 for Standard/Mini DisplayPort Mode
........................................................................................................................................................38
Figure 32. DisplayPort USB Type-C Mode BER Compliance Test Setup for DP Sink DUT at TP3_EQ at
10G .................................................................................................................................................40

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Figure 33. DisplayPort USB Type-C Mode BER Compliance Test Setup for DP Sink DUT at TP3_EQ at
13.5G and 20G................................................................................................................................42
Figure 34. Standard/Mini DisplayPort Mode BER Compliance Test Setup for DP Sink DUT at
TP3_EQ at 10G ...............................................................................................................................43
Figure 35. Standard/Mini DisplayPort Mode BER Compliance Test Setup for DP Sink DUT at
TP3_EQ at 13.5G and 20G..............................................................................................................45
Figure 36. Margin Test Configuration..................................................................................................46
Figure 37. Sink Margin Test Selection .................................................................................................46
Figure 38. Report Results Page............................................................................................................47
Figure 39. DUT Information .................................................................................................................48
Figure 40. Results Summary Table Example.......................................................................................49
Figure 41. Calibration/Test Result Details Example ...........................................................................51
Figure 42. Delete Individual Calibration/Test Results Example.........................................................51
Figure 43. Saving and Loading Calibration and Test Sessions...........................................................52
Figure 44. Jitter Clock Source Setting .................................................................................................54
Figure 45. PPG Misc2 Settings..............................................................................................................55
Figure 46. Pattern Setting ....................................................................................................................56
Figure 47. PPG Emphasis Setting.........................................................................................................57
Figure 48. SSC Setup ............................................................................................................................57
Figure 49. DATA+ Amplitude Setting ...................................................................................................57
Figure 50. CM Setting ...........................................................................................................................58
Figure 51. Oscilloscope Vertical and Horizontal Setup ......................................................................59
Figure 52. Oscilloscope Clock Recovery Setup ...................................................................................60
Figure 53. Oscilloscope Jitter Setup....................................................................................................62
Figure 54. ISI Measurement Preset Table............................................................................................63
Figure 55. 4Tap Emphasis CH1 Interface.............................................................................................64
Figure 56. Optimized Preset (Minimum DDJpp) Measurement On Keysight Scope..........................65
Figure 57. Optimized Preset (Minimum DDJpp) Measurement On Tektronix Scope........................65
Figure 58. Calibration to Phase Match On Keysight Scope.................................................................66
Figure 59. Calibration to Phase Match On Tektronix Scope...............................................................66
Figure 60. Calibrate ACCM....................................................................................................................67
Figure 61. Calibrate ACCM Peak-to-Peak Amplitude ..........................................................................68
Figure 62. Jitter Amplitudes.................................................................................................................69
Figure 63. Calibrate RJ Amplitude #1 ..................................................................................................70
Figure 64. Calibrate RJ Amplitude #2 On Keysight Scope ..................................................................71

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Figure 65. Calibrate RJ Amplitude #2 On Tektronix Scope.................................................................71
Figure 66. Calibrate SJ Amplitude #1 ..................................................................................................72
Figure 67. Calibrate SJ Amplitude #2 On Keysight Scope ..................................................................73
Figure 68. Calibrate SJ Amplitude #2 On Tektronix Scope.................................................................73
Figure 69. TJ Measurement On Keysight Scope..................................................................................74
Figure 70. TJ Measurement On Tektronix Scope................................................................................75
Figure 71. Eye Amplitude .....................................................................................................................76
Figure 72. Eye Mask On Keysight Scope ..............................................................................................77
Figure 73. Eye Mask On Tektronix Scope.............................................................................................77
Figure 74. DC Gain Setting ...................................................................................................................79
Figure 75. DFE Setting..........................................................................................................................80
Figure 76. Eye Amplitude .....................................................................................................................81
Figure 77. DFE Setting..........................................................................................................................89
Figure 78. Eye Amplitude .....................................................................................................................90
Figure 79. Eye Amplitude Measurements............................................................................................91
Figure 80. DC Gain Setting ...................................................................................................................97
Figure 81. DFE Setting..........................................................................................................................98
Figure 82. Eye Amplitude .....................................................................................................................99
Figure 83. Eye Amplitude Measurements..........................................................................................100
Figure 84. Keysight Connection Expert .............................................................................................102
Figure 85. Oscilloscope’s VISA Address .............................................................................................103
Figure 86. OpenChoice Instrument Manager In Start Menu.............................................................104
Figure 87. OpenChoice Instrument Manager Menu ..........................................................................105

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List of Tables
Table 1. Equipment Requirements –Systems ....................................................................................10
Table 2. Equipment Requirements –Accessories...............................................................................10
Table 3. Equipment Requirements –Connection Cables...................................................................11
Table 4. Calibration/Test Parameters Description .............................................................................21
Table 5. Oscilloscope Vertical and Horizontal Setup..........................................................................59
Table 6. Oscilloscope Clock Recovery Setup ......................................................................................60
Table 7. Oscilloscope ACCM Setup ......................................................................................................61
Table 8. Oscilloscope Jitter Setup.......................................................................................................61
Table 9. Oscilloscope Eye Diagram Vertical Setup .............................................................................63
Table 10. DC Gain Settings...................................................................................................................78
Table 11. Oscilloscope Vertical and Horizontal Setup........................................................................83
Table 12. Oscilloscope Clock Recovery Setup ....................................................................................84
Table 13. Oscilloscope ACCM Setup ....................................................................................................84
Table 14. Oscilloscope Jitter Setup.....................................................................................................85
Table 15. Oscilloscope Eye Diagram Vertical Setup ...........................................................................85
Table 16. DC Gain Settings...................................................................................................................87
Table 17. Oscilloscope Vertical and Horizontal Setup........................................................................92
Table 18. Oscilloscope Clock Recovery Setup ....................................................................................93
Table 19. Oscilloscope ACCM Setup ....................................................................................................93
Table 20. Oscilloscope Jitter Setup.....................................................................................................94
Table 21. Oscilloscope Eye Diagram Vertical Setup ...........................................................................94
Table 22. DC Gain Settings...................................................................................................................96

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1Introduction
This User Guide & MOI describes the procedures to perform DisplayPort 2.1 Sink (or Receiver)
calibration and tests of the VESA DisplayPort Logo Compliance Program using the Anritsu
MP1900A BERT and High Performance Real-Time Oscilloscopes in conformance with the
DisplayPort PHY 2.1 Compliance Test Specification (CTS). Sink tests are required to qualify a Sink
product or silicon building block for Logo certification and listing on the DP Integrators List.
This User Guide & MOI explains how to set up and use the GRL-DP21-SINK-AN software to
automate receiver calibration and compliance testing for DisplayPort 2.1 Sink conformance. The
GRL-DP21-SINK-AN software is used with the Anritsu MP1900A BERT for testing DisplayPort
receivers per the Jitter Tolerance requirements of the DisplayPort PHY CTS and DisplayPort over
USB Type-C® CTS respectively.
The GRL-DP21-SINK-AN software automates stressed signal calibration and jitter tolerance testing
at the following DisplayPort data rates‒UHBR 10 (10.0 Gbit/s per lane), UHBR 13.5 (13.5 Gbit/s per
lane) & UHBR 20 (20.0 Gbit/s per lane) and supports USB Type-C and standard DisplayPort sink
device-under-tests (DUT’s). For link training, compliance, and margin testing through DPCD
registers, the software provides automation control using a compatible DisplayPort AUX
controller.
The following are the main topics covered by this User Guide & MOI:
1. Equipment required for calibration and testing.
2. GRL-DP21-SINK-AN software setup for calibration and test automation.
3. Manual DisplayPort PHY CTS Sink calibration and test methodology.

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2Resource Requirements
2.1 Equipment Requirements
TABLE 1. EQUIPMENT REQUIREMENTS –SYSTEMS
System
Qty.
Description
Key Specification
Requirement
GRL-DP21-
SINK-AN
1
Granite River Labs DisplayPort 2.1 Sink Compliance Calibration & Test Automation
Software for the Anritsu MP1900A BERT –www.graniteriverlabs.com (Support >
Download Center)
–with Node Locked License to single Oscilloscope/PC OS
Anritsu
MP1900A BERT
1
MP1900A Signal Quality Analyzer, with following
modules:
•MU181000A/B 12.5 GHz Synthesizer
•MU181500B Jitter Modulation Source
•MU195020A 21G/32G bit/s SI Pulse Pattern
Generator
•MU195050A Noise Generator
•Option STR for stress
generation
•Proper test patterns [a]
Real-time
Oscilloscope [b]
1
Keysight (InfiniiSim / EZ-JIT / Serial Data Analysis /
Serial Data Equalization) Oscilloscope
Or
Tektronix DPO/MSO70000DX or 70000SX Series
Oscilloscope with DPOJET (Jitter and Eye Analysis)
software
> 16 GHz bandwidth [c]
[a] MP1900A DisplayPort patterns are distributed with GRL-DP21-SINKAN software and are installed during
installation process.
[b] Infiniium / DPOJET setup files and SDLA filters are distributed with the GRL-DP14-SINKAN software and are
installed during installation process.
[c] For UHBR 13.5 / UHBR 20 data rates, at least 21 GHz of oscilloscope bandwidth is required.
TABLE 2. EQUIPMENT REQUIREMENTS –ACCESSORIES
Accessory
Qty.
Description
Key Specification Requirement
TP1 Plug Test Fixture
1
Test Point 1 DisplayPort USB Type-
C Plug Test Fixture
1
Test Point 1 Standard/Mini
DisplayPort Plug Test Fixture