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DrFPGA
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re: Product How-To: Interoperability comes to EDA
DrFPGA   12/21/2010 1:27:17 AM
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Seems like the headline claim " Interoperability comes to EDA" is way too big for the article. How about "EDA Interoperabilty is 1% improved now" instead...

Joseph C Davis
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re: Product How-To: Interoperability comes to EDA
Joseph C Davis   10/14/2010 4:36:33 PM
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Mentor welcomes interactions between Calibre and third party tools, which is why we have the Mentor OpenDoor partner program to ensure access for other EDA vendors, and quality interfaces for our mutual customers. Quality assurance testing and certification is a big part of that program. Consequently, we feel obliged to inform readers when those expectations are not met. Tanner EDA is currently not a participant in Mentor’s OpenDoor program, and the External Verification Interface described in this article is not validated or supported by Mentor Graphics. With the growing complexity of advanced verification flows, users should be concerned about errors in the transfer of data between tools, and they should expect that interoperability interfaces are thoroughly tested by all the vendors whose tools are party to the exchange.

John McGehee
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re: Product How-To: Interoperability comes to EDA
John McGehee   10/7/2010 4:07:56 PM
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One of the most pernicious problems with tool interoperability is file skew--a prerequisite file, like a library or a verification result that is out of date. Once it gets into your data, file skew causes subtle errors that necessitate a tremendous amount of rework. How does your Tanner-Calibre interface address file skew? I share what I know about IC design flow control at http://www.voom.net/controlling-your-ic-design-flow



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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