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Tessent
®
BoundaryScan User’s Manual
For Use with Tessent Shell
Software Version 2017.4
December 2017
Document Revision 7
© 2015-2017 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
Mentor Graphics Corporation or other parties. No one is permitted to use these Marks without the prior
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
indicate a product from, or associated with, a particular third party. A current list of Mentor Graphics’
trademarks may be viewed at: mentor.com/trademarks.
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.
Mentor Graphics Corporation
8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777
Telephone: 503.685.7000
Toll-Free Telephone: 800.592.2210
Website: mentor.com
Support Center: support.mentor.com
Send Feedback on Documentation: support.mentor.com/doc_feedback_form
Tessent® BoundaryScan User’s Manual, v2017.4
December 2017
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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
7 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 2017
6 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
Sep 2017
5 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
Jun 2017
4 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 2017
Tessent® BoundaryScan User’s Manual, v2017.4
4
December 2017
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Tessent® BoundaryScan User’s Manual, v2017.4
5
December 2017
Table of Contents
Revision History
Chapter 1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Benefits of Boundary Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Boundary Scan Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Simple Boundary Scan Architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Embedded Boundary Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
TAP Controller State Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Boundary Scan Insertion With Tessent BoundaryScan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Chapter 2
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DFT Flow Using Tessent Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Design Flow Dofile Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Design Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Set the Context . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Read the Libraries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Read the Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Elaborate the Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Specify and Verify DFT Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Specify DFT Specification Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Add Constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Run DRC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Create DFT Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Invoke create_dft_specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Edit/Configure the DFT Specification According to Your Requirements . . . . . . . . . . . . . 34
Validate the DFT Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Process DFT Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Create DFT Hardware with the DFT Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Extract ICL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Preparation for Pattern Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Create Patterns Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Automatically Created Patterns Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Edit / Configure the Patterns Specification According to Your Requirements . . . . . . . . . 47
Process Patterns Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Create Patterns / Test Benches According to Your Specification . . . . . . . . . . . . . . . . . . . 49
Run and Check Test Bench Simulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Run Simulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Check Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Formal Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
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