----------------------------------------------------------- Customer Release Notes for DDR Analysis Product: DDR Analysis Version: 10.3.1 Platform: Win 10 Last Revised: May – 2020. ----------------------------------------------------------- Contents of this Readme file: 1. DDR Analysis Overview 2. What is New in this Release 3. System Requirements 4. Known Limitations / Problems 5. Notes 6. Contacting Tektronix ----------------------------------------------------------- 1. DDR Analysis Overview DDR Analysis is a standard specific solution tool for Tektronix Performance Digital Oscilloscopes (DPO/DSA/MSO 5K/7K/70K B/C/D/DX series). DDR Analysis requires Jitter and Eye Diagram Analysis Tool (Opt.DJA) and the advanced Search and Mark capability (Opt. ASM). ----------------------------------------------------------- 2. What is New in this release 1. Latest v10.3.1: This release includes the following features compared to DDRA build 10.3.0 released in February 2020 a. Burst detection changes to inline with DDR-Tx. 2. Latest v10.3.0: This release includes the following features compared to DDRA build 10.2.0 released in Oct/Nov 2019 a. Enhancements and Defect fixes related to LPDDR4: i. Updated tWPST measurement as per spec revision "JESD209-4B". ii. Updated DDRARXMask measurement under Address/Command, Clock edge type set to "BOTH" under Clock Recovery method 'Explicit Clock - Edge'. iii. Improvement to tDQS2DQ algorithms for automatic calculation of tDQS2DQ value. b. Enhancements and Defect fixes related to DDR4: i. Updated tWPRE measurement as per spec revision "JESD79-4B". ii. Updated Vix_DQS_Ratio measurement limits as per Spec Rev JESD79-4B. iii. Fixed the Report generation issue with waveform screenshots. iv. Fixed VIX Cumulative issue: VIX_DQS measurement gives incorrect result during FREE RUN. v. Fixed first time run failure of VIX_DQS: Execute only Vix_DQS measurements in the first instance will result in value as '0' vi. Fixed first time run failure of VIX_CLK: Execute only Vix_Clk measurements in the first instance will result in value as '0' / Error. c. Enhancements and Defect fixes related to DDR3L: i. Updated limits for tIH (base) for 1066MT/s. 3. Previous Release v10.2.0: This release includes the following features compared to DDRA build 10.1.4.4 released in April 2018 a. Enhancements and Defect fixes related to LPDDR4: i. Supports 'Auto Burst Detection' for differential signals with mid-reference value set to 0V. ii. LPDDR4 - Autoset types should be Min Max base top method for data eye measurement. iii. Mask will be placed at the center of the DQ Eye plot. iv. Enhanced the tDQS2DQ and burst marking algorithms for LPDDR4 v. Support mask margin (left/right/top/bottom) measurements and tDIVW, vDIVW measurements in PI mode. 1. SCPI Commands to extract the results are given below: a. DDRA:MASKMARGIN b. DDRA:MASKMARGINTIME c. DDRA:MASKMARGINVOLTAGE vi. updated the VIX measurements to spec JESD209-4B version. vii. limits in-line with latest spec revision "JESD209-4B" viii. Added support for 'Data Mask Placement' for LPDDR4 and LPDDR4x. 1. SCPI Commands to select the 'Data Mask Placement' between DQS-Crossing / Center are given below: a. DDRA:DATAMASKPLACEMENT? query returns CENTER or DQSCROSSING b. DDRA:DATAMASKPLACEMENT DQSCROSSING sets 'DQS crossing' as data mask placement. c. DDRA:DATAMASKPLACEMENT CENTER sets 'Center' as data mask placement. b. Updated limits for tCH/tCL(DDR2-400/533) 4. Previous Release v10.1.4.4: This release includes the following major features compared to DDRA build 10.1.3 released in April 2017 a. Address/command Eye width measurement is added for DDR4. b. A bug has been fixed in recalling LPDDR4 configuration file. c. A bug has been fixed in saving the report with screenshots. d. A bug fix for consistent DDR4 burst marks across Auto and Manual voltage reference levels. For more detailed information of DDRA features please refer Online Help. ------------------------------------------------------------ 3. System Requirements To use the DDRA application Opt. ASM (Advanced Search and Mark Tool) and DPOJET Advanced (Opt. DJA) are required. TekScope Firmware v10.10 and above (Win10) DPOJET v10.0.11 and above (Win10) ----------------------------------------------------------- 4. Known Limitations / Problems - For some of the DDRA measurement names, the measurement name reflected in DPOJET plots-panel is standard DPOJET measurement name instead of DDRA standard specific name. - DDRA application needs to be re-installed after the installation of TekScope. - For LPDDR4 ASM to work, at least one isolated burst should be present in the entire acquisition. - In some scenario, the algorithm may not distinguish properly between WRITE bursts and READ bursts with toggle preamble and extended postamble. ---------------------------------------------------------- 5. Notes - The DDRA installer will copy all the filter files present in 'C:\Users\Public\Filters' to 'C:\Users\Public\Filters_Backup' - The TekScope must be relaunched for the changes in filter.xml to take effect - Ensure that there is a valid waveform on Math before clicking on Single or Run button ----------------------------------------------------------- 6. Contacting Tektronix Tektronix, Inc. 14150 SW Karl Braun Drive P.O. Box 500 Beaverton, OR 97077 USA For product information, sales, service, and technical support: In North America, call 1-800-833-9200. Worldwide, visit www.tektronix.com to find contacts in your area.