CADENCE ICCR USER GUIDE PDF

Item 7 – 14 Trademarks: Trademarks and service marks of Cadence Design For more information on this, see the Specman User Guide. a data coverage item selected, the ICCR GUI displays the Functional tab, as shown in Figure Graphical User Interface for Rule. Customization . Incisive Tools. ICCR. SpecView. Unified coverage visualization. Higher performance for. Trademarks: Trademarks and service marks of Cadence Design Systems, Inc. ( Cadence) contained in this document are attributed to Cadence.

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Printed in czdence United States of America. Cadence Design Systems, Inc. GuuideSeely Ave. Trademarks and service marks of Cadence Design Systems, Inc. Cadence contained in this document are attributed csdence Cadence with the appropriate symbol. For queries regarding Cadence’s trademarks, contact the corporate legal department at the address shown above or call All other trademarks are the property of their respective holders.

This publication is protected by copyright law and international treaties and contains trade secrets and proprietary information owned by Cadence. Unauthorized reproduction or distribution of this publication, or any portion of it, may result in civil and criminal penalties. Except as specified in this permission statement, this publication may not be copied, reproduced, modified, published, uploaded, posted, transmitted, or distributed in any way, without prior written permission from Cadence.

Unless otherwise agreed to by Cadence in writing, this statement grants Cadence customers permission to print one 1 hard copy of this publication subject to the following conditions: The publication may be used only in accordance with a written agreement between Cadence and its customer.

The publication may not be modified ixcr any cadennce. Any authorized copy of the publication or portion thereof must include all original copyright, trademark, and other proprietary notices and this permission statement. The information contained in this document cannot be used in the development of like products or software, whether for internal or external use, and shall not be used for the benefit of any other party, whether or not for consideration.

For the purpose of documentation, Incisive Coverage is the same as Incisive Comprehensive Coverage defined in the patents. Patents 5,, 5,, 5,, 6,, 7,, 7,, 5,, 6,, 6,, 6,, and 7, Information in this publication is subject to change without notice and does not xadence a commitment on the part of Cadence.

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Except as may be explicitly set forth in such agreement, Cadence does not make, and expressly disclaims, any representations or warranties as to the completeness, accuracy or usefulness huide the information contained in this document.

Cadence does not warrant that use of such information will not infringe any third party rights, nor does Cadence assume any liability for damages or costs of any kind that may result from use of such information. Use, duplication, or disclosure by the Government is subject to restrictions as set forth in FAR Coverage guidd can be classified into code coverage and functional coverage.

This preface discusses the following topics: Have not been fully tested. Did not meet the desired coverage criteria. The prerequisites for using this manual are: The Incisive Coverage Quick Start Guide discusses the key concepts cafence coverage data generation and analysis. The Incisive Metrics Center User Guide provides in-depth information on merging metrics data, displaying reports, marking metrics items, and analyzing metrics data using IMC.

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They take precedence over usdr other operator. When used with OR-bars, they enclose a list of choices. You can choose one argument vadence the cadencee. You must choose one argument from the list.

If they are used within brackets, you can specify zero or more arguments. If they are used without brackets, you must specify at least one argument, but you can specify more. Getting Help on Commands to Run Tools You can display a list of options for any of the tools and utilities by typing the tool or utility name followed by the -help option as follows: Customer support Cadence is committed to keeping your design teams productive by providing answers to technical questions, the latest software updates, and education services to keep your skills updated.

Incisive vManager User Guide

For information on Cadence support, go to the following web site: An error in a manual An omission of information in a manual A problem using the Cadence Help documentation system January 14 Product Version Coverage metrics can be classified as code coverage and functional coverage. Code coverage is a method of assessing how well the test cases test the intended behavior and to what extent they execute the design. Functional coverage focuses on functional aspects of a design and provides a very good insight on how the verification goals set by a test plan are being met.

This chapter provides an overview of coverage types and describes Incisive Coverage in the design flow. Code Coverage Code coverage in Incisive is classified as: Code Coverage, which includes: Block Coverage – Identifies the lines of code that get executed during a simulation run. It helps you determine if the various testbenches exercise the statements in a block. Branch coverage – Yields more precise coverage details than block coverage by obtaining coverage results for various branches individually.

Statement Coverage – Provides information on number of statements within a block. Expression Coverage – Provides information on why a conditional piece of code was executed.

It provides statistics for all expressions in the HDL code. See Chapter 3, “Expression Coverage,” for more information. Toggle Coverage – Provides information about the change of signals and ports, during a simulation run. It measures activity in the design, such as unused signals, signals that remain constant, or signals that have too few value changes. See Chapter 4, “Toggle Coverage,” for more information.

January 15 Product Version With FSM coverage, you identify what states were visited and which transitions were taken. Functional Coverage Functional coverage is performed on user-defined functional coverage points, specified using PSL, SystemVerilog assertions, or covergroup statements.

These coverage points specify scenarios, error cases, corner cases, and protocols to be covered and also specifies analysis to be done on different values of a variable.

Functional coverage is of following types: Control-oriented functional coverage – Is an extension of assertion-based verification and identifies interesting functions directly. Data-oriented functional coverage – Focuses on tracking data values.

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Icc user guide –

It includes coverage of variable values, binning, specification of sampling, and cross products. It helps design engineers to identify untested data values or subranges. In Incisive Coverage, data-oriented functional coverage is specified using SystemVerilog constructs. See Chapter 7, “Functional Coverage,” for more information. To access the functional coverage capabilities, you need an Incisive license. January 16 Product Version The design and testbench are passed to NC-Sim for coverage data generation.

The coverage data is stored to a database, which later is analyzed using the coverage reporting tool, IMC. See Chapter 9, “Generating Coverage Data,” for detailed information on coverage data generation.

January 17 Product Version Together these coverages tell you what code did not execute. Block coverage identifies whether test scenarios exercise the statements in a block. In general, block coverage is an essential first step in the overall verification process.

Either none or all of the statements in a block are executed. The following procedural statements are considered as blocks: All statements between a matching begin A flowbreak January 18 Product Version Flowbreak Statements in Verilog if statement repeat wait statement statement disable statement case item while forever statement for delay control statement statement event control tasks and function calls Flowbreak Statements in VHDL if statement next statement wait statement case item loop statement exit statement return statement All statements from a begin up to and including the completion of the next flowbreak statement.

All statements from after the completion of a flowbreak statement up to and including the next flowbreak statement or until the final end statement. All statements between matching fork Blocks in behavioral Verilog code are within initial and always procedural blocks, tasks, and functions. Blocks in behavioral VHDL code are within process blocks and subprograms. The following figure displays blocks in a given Verilog code.

January 19 Product Version Blocks are not scored for concurrent assignment statements. Blocks are not defined for primitives.

Incisive Coverage User Guide |

Consider the following Verilog continuous assignment statement. If cond1 evaluates to true, out2 is assigned 1’b1.

If cond1 evaluates to false, out2 is assigned 1’b0. Ideally, coverage results should indicate coverage numbers for giude the conditions individually. With block coverage, this statement is considered as a single block, which is considered covered if cond1 is either true or false.

Branches in Verilog are generated due to: This guidf displays source annotated with block coverage data. In the above figure, red indicates pure blocks, green indicates branches not scored as block, and blue indicates the code scored as block and branch. To ensure verification completeness, design and verification engineers might want to prioritize blocks based on the number of statements in a block. A block coverage report, by default, does not include information on the number gide statements within a block.

With caxence command, scoring of statements is enabled, and the statement coverage information is also included in the block coverage report. A simple block coverage report would help you identify uncovered blocks.