DDR Analysis Memory Interface Electrical Verification and ... 20-%20sml.pdfآ  DDR Analysis Memory Interface

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  • DDR Analysis Memory Interface Electrical Verification and Debug Solution Printable Application Help

    *P077023110* 077-0231-10

  • DDR Analysis Memory Interface Electrical Verification and Debug Solution Printable Application Help

    www.tektronix.com 077-0231-10

  • Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specifications and price change privileges reserved.

    TEKTRONIX and TEK are registered trademarks of Tektronix, Inc. 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:

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  • Table of Contents Welcome ............................................................................................................................................................. xi

    Introduction to the application Related documentation .................................................................................................................................. 1 Conventions ................................................................................................................................................... 1 Technical support ........................................................................................................................................... 2 Customer feedback ........................................................................................................................................ 2

    Getting started Product description ........................................................................................................................................ 5 DDRA prerequisites ....................................................................................................................................... 6 Requirements and restrictions ....................................................................................................................... 6 Supported probes ........................................................................................................................................... 6 Installing the application ................................................................................................................................. 7 About DDRA ................................................................................................................................................... 8

    Operating basics About basic operations ................................................................................................................................... 9

    Starting the application ............................................................................................................................. 9 Menu controls ........................................................................................................................................... 9 Virtual keypad ........................................................................................................................................... 9 Tips on the DDRA user interface ............................................................................................................ 10

    Basic oscilloscope functions ........................................................................................................................ 11 Application directories ............................................................................................................................ 11 File name extensions ............................................................................................................................. 11 Returning to the application .................................................................................................................... 11 Control panel .......................................................................................................................................... 11

    Saving and recalling setups ......................................................................................................................... 12 Saving a setup ........................................................................................................................................ 12 Recalling a saved setup ......................................................................................................................... 12 Recalling the default setup ..................................................................................................................... 13

    Search and mark .......................................................................................................................................... 13 Limits ............................................................................................................................................................ 14 Dynamic limits .............................................................................................................................................. 15

    DDR Analysis Printable Application Help i

  • Setting up DDR for analysis ......................................................................................................................... 16 DDR standards and their measurements ............................................................................................... 16 Derating .................................................................................................................................................. 25 About DDR analysis ............................................................................................................................... 28 Step 1: Generation rate and levels ......................................................................................................... 28 Step 2: Interposer filter ........................................................................................................................... 31 Step 3: Measurements and sources ....................................................................................................... 33 Step 4: Burst detection method .............................................................................................................. 38 Step 5: Burst detection settings .............................................................................................................. 42 Step 6:Thresholds and scaling ............................................................................................................... 42 DQ-DQS phase alignment ...................................................................................................................... 44 Chip select latency + DQ-DQS phase alignment ................................................................................... 46 Logic state + burst latency ...................................................................................................................... 47 Visual search .......................................................................................................................................... 50 Measurement levels ............................................................................................................................... 53 Hints ....................................................................................................................................................... 54 Results as statistics ................................................................................................................................ 54 Plots ....................................................................................................................................................... 55 Reports ................................................................................................................................................... 55 Switching between the DDRA and DPOJET applications ...................................................................... 55 Salient features of MSO-DDRA integration ............................................................................................ 56

    Tutorial Introduction to the tutorial ............................................................................................................................. 57 Setting up the oscilloscope .......................................................................................................................... 57 Starting the application ................................................................................................................................. 57 Waveform files ............................................................................................................................................. 57 Recalling a waveform file ............................................................................................................................. 57 Taking a measurement ................................................................................................................................ 58

    Parameters About parameters ......................................................................................................................................... 61 Ste