----------------------------------------------------------- Customer Release Notes for DDR Analysis Product: DDR Analysis Version: 10.5.0 Platform: Win 10 Last Revised: Jan – 2023. ----------------------------------------------------------- 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/SX 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 Release v10.5.0: This release includes the following features compared to DDRA build 10.4.6 released in Sept 2022. a. [DDR4]: tDQS2DQ measurement updated in-line with latest spec JESD79-4C. Release v10.4.6: This release includes the following features compared to DDRA build 10.4.4 released in Jan 2022. a. [LPDDR4/4X]: Vix measurement updated in-line with latest spec 209-4D. b. [LPDDR4X]: Limits for all data-rates are updated in-line with latest spec 209-4D. c. Burst detection changes to in line with DDR-Tx. d. Report now reflects supported JEDEC specification version for all DDR and LPDDR generations. Release v10.4.4: This release includes the following features compared to DDRA build 10.3.3 released in Jan 2021. a. LPDDR4/4x: The GUI of 'Data Mask Placement' option for 'DQS Crossing' or 'Center' is deprecated. b. LPDDR4/4x: The SCPI commands related to 'Data Mask Placement' option as give below are deprecated. i. DDRA:DATAMASKPLACEMENT? ; DDRA:DATAMASKPLACEMENT DQSCROSSING ; DDRA:DATAMASKPLACEMENT CENTER c. LPDDR4X: measurement limits updated in line with latest specification JESD209-4-1A. d. LPDDR4X: updated the Data Eye reference levels. e. LPDDR4/4X: CA-Rx-Mask , Clock edge type set to "Rise" under Clock Recovery method 'Explicit Clock - Edge' f. DDR4: SRCA_Rise/Fall limits updated in line with latest specification JESD79-4C. g. DDR4-DDR3: Preamble measurements are updated. h. Updated algorithms to feed the nominal clock offset relative to data for Write-Eye-Data, CA-Rx-Mask tests as applicable. i. Clock(Diff) Measurement Group test selection or de-selection time improved up to 90%. Note: ----- User Manual is not updated for this version. Release v10.3.3: This release includes the following features compared to DDRA build 10.3.1 released in April 2020 a. DDR4 measurements and respective limits updated in line with latest specification JESD79-4C. b. DDR4 tLZ(DQS) measurement change for Read Single Ended to be in line with latest specification JESD79-4C. c. LPDDR4 measurement limits updated in line with latest specification JESD209-4C. d. DDR3\DDR3L measurement limits updated in line with latest specification JESD79-3F. e. Burst detection changes in line with DDR-Tx. f. Updated DPOJET version check to v10.3.0. Release 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 in line with DDR-Tx. Release 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. 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) 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 >= v10.12 DPOJET >= v10.4.0 ----------------------------------------------------------- 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. - 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.