QPHY-MIPI-DPHY MIPI D-PHY Serial Data Operator’s Manual Revision A – October, 2010 Relating to the Following Release Versions: Software Option Rev. 6.3 MIPI D-PHY Script Rev. 1.0 Style Sheet Rev. 1.
LeCroy Corporation 700 Chestnut Ridge Road Chestnut Ridge, NY, 10977-6499 Tel: (845) 578-6020, Fax: (845) 578 5985 Internet: www.lecroy.com © 2009 by LeCroy Corporation. All rights reserved. LeCroy and other product or brand names are trademarks or requested trademarks of their respective holders. Information in this publication supersedes all earlier versions. Specifications are subject to change without notice.
QPHY-MIPI-DPHY Software Option TABLE OF CONTENTS INTRODUCTION ........................................................................................................................ 6 Compatibility ............................................................................................................................................................... 6 SETUP AND INSTALLATION ................................................................................................... 6 Required Equipment ......
ZID termination values for LP (in Ohms) .................................................................................................................. 24 Dp Filename ............................................................................................................................................................. 24 Dn Filename .............................................................................................................................................................
QPHY-MIPI-DPHY Software Option FIGURES Figure 1 - UNH-IOL Reference Termination Board ................................................................................................ 7 Figure 2 – UNH-IOL MIPI D-PHY TLIS Board ......................................................................................................... 7 Figure 3 - UNH-IOL MIPI D-PHY/CSI/DSI Probing Board ......................................................................................
INTRODUCTION QPHY-MIPI-DPHY is a software package designed to capture, analyze, and report measurements in conformance with MIPI Alliance Specification for D-PHY version 1.00.00. Compatibility QPHY-MIPI-DPHY is a software option compatible with the following LeCroy X-Stream oscilloscopes: WavePro 735Zi (4x20GS/s, 2x40GS/s) and higher bandwidth equivalents SDA 7Zi and DDA 7Zi models are also supported WaveMaster 804Zi (4x40 GS/s, 2x80GS/s) and higher bandwidth equivalents.
QPHY-MIPI-DPHY Software Option Figure 1 - UNH-IOL Reference Termination Board Figure 2 – UNH-IOL MIPI D-PHY TLIS Board 918841 Rev A 7
Figure 3 - UNH-IOL MIPI D-PHY/CSI/DSI Probing Board 8 918841 Rev A
QPHY-MIPI-DPHY Software Option Figure 4 - UNH-IOL SMA Alignment Jig 918841 Rev A 9
QUALIPHY COMPLIANCE TEST PLATFORM QualiPHY is LeCroy’s unique compliance test framework which leads the user through the compliance tests. QualiPHY displays connection diagrams to ensure tests run properly, automates the oscilloscope setup, and generates full compliance reports. QualiPHY makes MIPI D-PHY compliance testing easy and fast. The QualiPHY software application automates the test and report generation.
QPHY-MIPI-DPHY Software Option See the QualiPHY Operator’s Manual for more information on how to use the QualiPHY framework.
Oscilloscope Option Key Installation An option key must be purchased to enable the QPHY-MIPI-DPHY option. Call LeCroy Customer Support to place an order and receive the code. The software option SDA2 is also required. Enter the key and enable the purchased option as follows: 1. From the oscilloscope menu select Utilities Utilities Setup... 2. Select the Options tab and click the Add Key button. 3. Enter the Key Code using the on-screen keyboard. 4.
QPHY-MIPI-DPHY Software Option QualiPHY is now ready to control the oscilloscope.
QualiPHY tests the oscilloscope connection after clicking the Start button. The system prompts you if there is a connection problem. QualiPHY’s Scope Selector function can also be used to verify the connection. Please refer to the QualiPHY Operator’s Manual for explanations on how to use Scope Selector and other QualiPHY functions. Accessing the QPHY-MIPI-DPHY Software using QualiPHY This topic provides a basic overview of QualiPHY’s capabilities.
QPHY-MIPI-DPHY Software Option 4. Click the Configuration button in the QualiPHY main menu: 5. Select a configuration from the pop-up menu: Figure 8 - QualiPHY configuration selection menu 6. Click Start. 7. Follow the pop-up window prompts.
Customizing QualiPHY The predefined configurations in the Configuration screen cannot be modified. However, you can create your own test configurations by copying one of the standard test configurations and making modifications. A description of the test is also shown in the description field when selected.
QPHY-MIPI-DPHY Software Option Creating Custom Configurations Beginning with any of the pre-loaded configurations, 1. Click on the Test Selector tab to change what tests you would like to be included in your new configuration. 2. Click on the Variable Setup tab to change the variables for your new configuration. 3. Click on the Limits tab to change which limit set should be used for your new configuration See QualiPHY Manual for more information 4.
Figure 10 - Variable Setup and Limits Manager windows 18 918841 Rev A
QPHY-MIPI-DPHY Software Option QPHY-MIPI-DPHY OPERATION After pressing Start in the QualiPHY menu, the software instructs how to set up the test using pop-up connection diagrams and dialog boxes. QualiPHY also instructs how to properly configure the Product Under Test (PUT) to change test signal modes (when necessary).
QPHY-MIPI-DPHY TEST CONFIGURATIONS Configurations include variable settings and limit sets as well, not just test selections. See the QPHY-MIPI-DPHY Variables section for a description of each variable value and its default value. Dp-Dn-CLKp-CLKn LP tests (4 Probes) This configuration will run all of the LP tests. The limit set in use is Default. All of the variables are set to their default settings. Dp-Dn-CLKp-CLKn HS tests (4 Probes) This configuration will run all of the HS tests.
QPHY-MIPI-DPHY Software Option QPHY-MIPI-DPHY VARIABLES DUT bit rate in High-Speed mode in Mbps This variable is used to set the oscilloscope timebase and sampling rate, see Clock Period Per Screen Division for more explanation. The default value is 500 Mbps. Note from the MIPI Specification The actual maximum achievable bit rate in High-Speed mode is determined by the performance of transmitter, receiver and interconnect implementations. Therefore, the maximum bit rate is not specified in this document.
Waveform Path This variable allows the user to specify the path on the oscilloscope to save/recall waveforms. When not in Demo Mode and Save acquired waveforms is enabled, the waveforms will be saved in this folder. When set to Demo Mode or Use stored trace for pixel clock measure, saved waveforms should be available in this folder. The default value for this variable is D:\Waveforms\MIPIDPHY. Use Stored Waveforms This variable allows the user to run the selected tests on previously saved waveforms.
QPHY-MIPI-DPHY Software Option Data Lanes This variable allows the user to specify the Data Lane(s) tested. Any subset of D0,D1,D2,D3 is accepted. User should set all Data Lanes the DUT implements for a complete validation. The default value is D0. XX Channel Gain This variable allows the user to manually specify the vertical scale in V/div for XX. XX can be Dp, Dn, CLKp or CLKn. The default value is 0 which indicates auto-scale.
CLKp HS Filename This variable allows the user to specify the name of the CLKp saved waveform to test. This is only used when Use Saved Waveforms is set to Yes and Trace Name Format is set to "Custom". CLKn HS Filename This variable allows the user to specify the name of the CLKn saved waveform to test. This is only used when Use Saved Waveforms is set to Yes and Trace Name Format is set to "Custom".
QPHY-MIPI-DPHY Software Option A Lane enters the Reverse High-Speed Data Transmission mode by means of a Link Turnaround procedure as specified in section 5.5. Reverse Data Transmission is not source-synchronous; the Clock signal is driven by the Master side while the Data Lane is driven by the Slave side. The Slave Side transmitter shall send one data bit every two periods of the received Clock signal.
QPHY-MIPI-DPHY TEST DESCRIPTIONS The test descriptions for the QPHY-MIPI-DPHY tests can be found in the MIPI Alliance Test Program D-PHY th Physical Layer Conformance Test Suite Version 1.00. As of October 4 , 2010 this document can be found at the following address which is accessible to members of the MIPI Alliance only: https://members.mipi.org/mipi-testing/files/UNH-IOL/UNH-IOL%20Test%20Suite%20Documents/DPHY/MIPI_DPHY_Conformance_Test_Suite_(v1.00).
QPHY-MIPI-DPHY Software Option LP Tests oVOH / VOL (Clock and Data) oTRLP / TFLP (Clock and Data) oMaximum Slew Rate (Clock and Data) oMinimum Slew Rate (Clock and Data) oMinimum Rising 400-700 (Clock and Data) oMinimum Rising 700-930 (Clock and Data) oTLP-Pulse-Tx (Data Only) oTLP-Per-Tx (Data Only) 918841 Rev A 27
HS (High Speed) Tests BRIEF HS CLOCK TO DATA TIMING TEST DESCRIPTIONS Name Purpose FirstBit To verify that the DUT HS Clock is properly aligned to the payload data signaling. TCLK-PRE To verify that the time that the HS clock is driven prior to an associated Data Lane beginning the transition from LP to HS mode (TCLK-PRE), is greater than the minimum required value.
QPHY-MIPI-DPHY Software Option BRIEF HS CLOCK TIMING TEST DESCRIPTIONS Name Purpose TLP-01 To verify that the duration (TLPX) of the final Clock Lane LP-01 state immediately before HS transmission is greater than the minimum conformant value. TCLK-PREPARE To verify that the time that the DUT Clock Lane transmitter drives LP-00 (TCLK-PREPARE) prior to driving TCLK-ZERO when entering HS mode, is within the conformance limits.
BRIEF HS LEVEL TEST DESCRIPTIONS Name Purpose VOD-DATA-1 VOD-DATA-0 VOD-CLK-1 To verify that the Differential Voltages (VOD(0) and VOD(1)) of the DUT Data & Clock Lanes HS transmitter are within the conformance limits. VOD-CLK-0 VOHHS-Dp VOHHS-Dn VOHHS-CLKp To verify that the Single-Ended Output High Voltages (VOHHS(DP) and VOHHS(DN)) of the DUT Data & Clock Lanes HS transmitter are less than the maximum conformance limit.
QPHY-MIPI-DPHY Software Option BRIEF LP RISE & FALL TEST DESCRIPTIONS Name Purpose TRLP-Dp TRLP-Dn TRLP-CLKp To verify that the 15%-85% Rise Time (TRLP) of the DUT’s Data & Clock Lanes LP transmitter is within the conformance limits. TRLP-CLKn TFLP-Dp TFLP-Dn TFLP-CLKp To verify that the 15%-85% Fall Time (TFLP) of the DUT’s Data & Clock Lanes LP transmitter is within the conformance limits.
BRIEF LP SLEW RATE TEST DESCRIPTIONS Name Purpose SR-MAX-Dp SR-MAX-Dn SR-MAX-CLKp SR-MAX-CLKn SR-FALL-MIN-Dp SR-FALL-MIN-Dn SR-FALL-MIN-CLKp SR-FALL-MIN-CLKn SR-RISE-400-700-MIN-Dp To verify that the Slew Rate (δV/δtSR) of the DUT’s Data & Clock Lanes LP transmitter is within the conformance limits, for specific capacitive loading conditions.
