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Tessent MemoryBIST User’s Manual
For Use with Tessent
®
Shell
Software Version 2019.1
March 2019
Document Revision 12
© 2015-2019 Mentor Graphics Corporation
All rights reserved.
This document contains information that is proprietary to Mentor Graphics Corporation. The original recipient of this
document may duplicate this document in whole or in part for internal business purposes only, provided that this entire
notice appears in all copies. In duplicating any part of this document, the recipient agrees to make every reasonable
effort to prevent the unauthorized use and distribution of the proprietary information.
This document is for information and instruction purposes. Mentor Graphics reserves the right to make
changes in specifications and other information contained in this publication without prior notice, and the
reader should, in all cases, consult Mentor Graphics to determine whether any changes have been
made.
The terms and conditions governing the sale and licensing of Mentor Graphics products are set forth in
written agreements between Mentor Graphics and its customers. No representation or other affirmation
of fact contained in this publication shall be deemed to be a warranty or give rise to any liability of Mentor
Graphics whatsoever.
MENTOR GRAPHICS MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE.
MENTOR GRAPHICS SHALL NOT BE LIABLE FOR ANY INCIDENTAL, INDIRECT, SPECIAL, OR
CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT NOT LIMITED TO LOST PROFITS)
ARISING OUT OF OR RELATED TO THIS PUBLICATION OR THE INFORMATION CONTAINED IN IT,
EVEN IF MENTOR GRAPHICS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
U.S. GOVERNMENT LICENSE RIGHTS: The software and documentation were developed entirely at
private expense and are commercial computer software and commercial computer software
documentation within the meaning of the applicable acquisition regulations. Accordingly, pursuant to
FAR 48 CFR 12.212 and DFARS 48 CFR 227.7202, use, duplication and disclosure by or for the U.S.
Government or a U.S. Government subcontractor is subject solely to the terms and conditions set forth in
the license agreement provided with the software, except for provisions which are contrary to applicable
mandatory federal laws.
TRADEMARKS: The trademarks, logos and service marks ("Marks") used herein are the property of
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written consent of Mentor Graphics or the owner of the Mark, as applicable. The use herein of a third-
party Mark is not an attempt to indicate Mentor Graphics as a source of a product, but is intended to
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The registered trademark Linux
®
is used pursuant to a sublicense from LMI, the exclusive licensee of
Linus Torvalds, owner of the mark on a world-wide basis.
End-User License Agreement: You can print a copy of the End-User License Agreement from:
mentor.com/eula.
Mentor Graphics Corporation
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Telephone: 503.685.7000
Toll-Free Telephone: 800.592.2210
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Send Feedback on Documentation: support.mentor.com/doc_feedback_form
Tessent MemoryBIST User’s Manual, v2019.1
March 2019
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Revision History
Author: In-house procedures and working practices require multiple authors for documents. All
associated authors for each topic within this document are tracked within the Mentor Graphics
Technical Publication’s source. For specific topic authors, contact Mentor Graphics Technical
Publication department.
Revision History: Released documents maintain a revision history of up to four revisions. For
earlier revision history, refer to earlier releases of documentation which are available at the
following URL:
http://support.mentor.com
Revision Changes Status/
Date
12 Modifications to improve the readability and comprehension of
the content. Approved by Lucille Woo.
All technical enhancements, changes, and fixes listed in the
Tessent Release Notes for this product are reflected in this
document. Approved by Ron Press.
Released
Mar 2019
11 Modifications to improve the readability and comprehension of
the content. Approved by Lucille Woo.
All technical enhancements, changes, and fixes listed in the
Tessent Release Notes for this product are reflected in this
document. Approved by Ron Press.
Released
Dec 2018
10 Modifications to improve the readability and comprehension of
the content. Approved by Lucille Woo.
All technical enhancements, changes, and fixes listed in the
Tessent Release Notes for this product are reflected in this
document. Approved by Ron Press.
Released
Aug 2018
9 Modifications to improve the readability and comprehension of
the content. Approved by Lucille Woo.
All technical enhancements, changes, and fixes listed in the
Tessent Release Notes for this product are reflected in this
document. Approved by Ron Press.
Released
May 2018
Tessent MemoryBIST User’s Manual, v2019.1
4
March 2019
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Tessent MemoryBIST User’s Manual, v2019.1
5
March 2019
Table of Contents
Revision History
Chapter 1
Tessent MemoryBIST Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Why Consider Tessent MemoryBIST for Your Chip? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Tessent MemoryBIST Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Tessent MemoryBIST Library Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
User-Defined Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Tessent MemoryBIST Library Operation Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Custom Operation Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Chapter 2
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
DFT Flow Using Tessent Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Design Flow Dofile Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Design Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Set the Context . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Read the Libraries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Read the Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Elaborate the Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Report the Design Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Specify and Verify DFT Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Set DFT Specification Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Add Properties and Constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Define Clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Run DRC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Create DFT Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Invoke create_dft_specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Edit/Configure the DFT Specification According to Your Requirements . . . . . . . . . . . . . 43
Validate the DFT Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Process DFT Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Create DFT Hardware with the DFT Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Extract ICL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Preparation for Pattern Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Create Patterns Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Automatically Created Patterns Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Edit/Configure the Patterns Specification According to Your Requirements . . . . . . . . . . 49
Process Patterns Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Process Patterns According to the Patterns Specification . . . . . . . . . . . . . . . . . . . . . . . . . 51
Run and Check Test Bench Simulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Run Simulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
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