Cadence® system design and verification solutions, integrated under our Verification Suite, provide the simulation, acceleration, emulation, and management capabilities.
Verification Suite Related Products A-Z
Cadence® digital design and signoff solutions provide a fast path to design closure and better predictability, helping you meet your power, performance, and area (PPA) targets.
Full-Flow Digital Solution Related Products A-Z
Cadence® custom, analog, and RF design solutions can help you save time by automating many routine tasks, from block-level and mixed-signal simulation to routing and library characterization.
Overview Related Products A-Z
Driving efficiency and accuracy in advanced packaging, system planning, and multi-fabric interoperability, Cadence® package implementation products deliver the automation and accuracy.
Cadence® PCB design solutions enable shorter, more predictable design cycles with greater integration of component design and system-level simulation for a constraint-driven flow.
An open IP platform for you to customize your app-driven SoC design.
Comprehensive solutions and methodologies.
Helping you meet your broader business goals.
A global customer support infrastructure with around-the-clock help.
More Support Log In
24/7 Support - Cadence Online Support
Locate the latest software updates, service request, technical documentation, solutions and more in your personalized environment.
Cadence offers various software services for download. This page describes our offerings, including the Allegro FREE Physical Viewer.
The Cadence Academic Network helps build strong relationships between academia and industry, and promotes the proliferation of leading-edge technologies and methodologies at universities renowned for their engineering and design excellence.
Participate in CDNLive
A huge knowledge exchange platform for academia to network with industry. We are looking for academic speakers to talk about their research to the industry attendees at the Academic Track at CDNLive EMEA and Silicon Valley.
Come & Meet Us @ Events
A huge knowledge exchange platform for academia. We are looking for academic speakers to talk about their research to industry attendees.
Americas University Software Program
Join the 250+ qualified Americas member universities who have already incorporated Cadence EDA software into their classrooms and academic research projects.
EMEA University Software Program
In EMEA, Cadence works with EUROPRACTICE to ensure cost-effective availability of our extensive electronic design automation (EDA) tools for non-commercial activities.
Apply Now For Jobs
If you are a recent college graduate or a student looking for internship. Visit our exclusive job search page for interns and recent college graduate jobs.
Cadence is a Great Place to do great work
Learn more about our internship program and visit our careers page to do meaningful work and make a great impact.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
Overview All Courses Asia Pacific EMEANorth America
Instructor-led training [ILT] are live classes that are offered in our state-of-the-art classrooms at our worldwide training centers, at your site, or as a Virtual classroom.
Online Training is delivered over the web to let you proceed at your own pace, anytime and anywhere.
Exchange ideas, news, technical information, and best practices.
The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information.
It's not all about the technology. Here we exchange ideas on the Cadence Academic Network and other subjects of general interest.
Cadence is a leading provider of system design tools, software, IP, and services.
CLP can read in LP libs (liberty).
read library -liberty -lp
Will this work for you or are you asking about something else?
In reply to tstark:
Thanks for prompt response (for other queries also).
Yes, CLP is reading liberty files and also able to report all the cells specified in it via "report library data"
But it is not able to identify LowPower cells having relevant liberty attributes applied to them if those
cell are not specified in CPF via "define_*" commands.
If a normal cell is specified as Isolation-cell via "define_isolation_cell" command than it is accepted as isolation-cell.
Thus following are observed, please confirm?
1. LP cells are only identified via "define_*" CPF commands.
2. Liberty attributes for Lowpower are not considered by Conformal.
3. read library -liberty *.lib command only identify the cells and maps to cells under define_* commands.
4. Any LP cell if not specified with define_* command but found in library and in design will not be considered as
relevant cell and CLP will flag violation of missing cell and not incorrect cell.
5. Is there any rule in CLP which can identify such special cells which are not defined via define_* command.
Thanks in advance.
In reply to NTlp:
Can you confirm you are using
The -lp switch is what pulls in the liberty low power data.
You will also need to use a more recent version for best results. I think the -lp switch has worked well since 11.1 (or earlier) but the current version is 12.1.
Sorry, I don't remember the LP liberty results from 9.1. I do see some problems with the order of commands in your script.
Here is a sample dofile I got from the online "web interface" documentation
set lowpower option -netlist_style logical
//set lowpower option -netlist_style hybrid
//set lowpower option -netlist_style physical
read library -append -liberty -lp <liberty files>
read design <design_files>
report design data
report black box -class
read power intent -cpf <CPF files> -post_synthesis
//read power intent -cpf <CPF files> -post_route
commit power intent
analyze power domain
The web interface documentation is opened via
SETUP> set web interface on
There are many sample dofile there.
There are also "Rapid Adoption Kits" or RAKs located here
or for CLP:
This should point you in the right direction. I wouldn't continue working with 9.1 for LP liberty since that version was early in the LP liberty adoption phase.
Following your sequence, it works.
Earlier i was doing
lec -LPXL -verify, read design, read library -liberty <>, read cpf <>.
With your commands
set lowpower options -netlist_style logical ------ if not set than default should be picked.
read commands ---------- these should be order independent.
commit power intent ----- not used
analyze power domain ---- not used
Do you feel this restrict the CLP to provide information as in my case?
Please share your thoughts from better awareness. Thanks in advance.