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TransEDA offers PCI-X 2.0 verification IP

Posted: 26 Aug 2002 ?? ?Print Version ?Bookmark and Share

Keywords:transeda? pci x verification suite? pci x 2.0? verification tool? soc design?

TransEDA PLC has put together a new verification bundle for designers wishing to create SoCs compliant with the PCI-X 2.0 standard.

Tom Borgstrom, VP of marketing, said the bundle targets design teams that have neither the experience nor the time to develop their own compliance verification suites.

"Standard interfaces are getting so sophisticated that it takes chip designers quite a bit of time to write these models themselves and do a good and complete job," Borgstrom said. "If you want to define all the different parameters and error conditions, it can become a full-time job for a small group of engineers for a few months. If you don't do it a lot, you can also introduce errors and spend time debugging your model instead of your design. It is a make versus buy decision and offering this means that it is one less thing engineers have to spend their time doing."

The bundle, called TransEDA's PCI-X Verification Suite, has everything needed to verify design compliance with the PCI, PCI-X 1.0, and PCI-X 2.0, Borgstrom said, except the core. The bundle includes a bus functional model (BFM), monitor, test suite, and property library.

The bundle's BFM - user-configurable, self-checking, and automated - has intelligent master and slave agents that drive and respond to transactions on the bus.

The BFM supports multithreading and out-of-order split completions, and its master and slave agents can be programmed, triggered, and then ignored while a cycle is running.

Users can also install the BFM into their testbench and can run it statically or dynamically, depending on how the user configures it. Borgstrom said users can run the BFM with third-party environments or TransEDA's own VN-Control application-specific test automation tool.

The monitor lets users observe bus traffic. It also provides performance statistics so users can evaluate how efficiently their device moves data.

The monitor identifies bus protocol errors, logs all bus activity, and also provides transaction type versus response and control signal state coverage information so users can determine which aspects of the bus protocol have been exercised during a simulation run.

The bundle's arbiter coordinates access to the bus by multiple agents in a system simulation. Users can configure the arbiter for different types of arbitration scenarios, such as rotating or fixed priority, with or without lock agent priority.

The bundle's stimulus agent allows users to ensure that low-level sequences of vectors are clocked onto the bus and that response vectors are captured and can be compared to a set of expected vectors to find errors.

The bundle's property library describes the PCI-X 2.0 specification in terms of expected and prohibited protocol behaviors. When used with TransEDA's VN-Property DX dynamic property checker, users can check that no PCI-X 2.0 operating rules were violated during simulation.

It provides users with protocol coverage metrics and reports. Components of the library can also be used as building blocks to create higher-level properties for formal verification tools.

Borgstrom said the bundle also includes a raw model testbench and suites of preconfigured tests that serve as a starting point for users when they begin developing their design-specific testbenches.

"We also include configuration files for the VN-Control test automation tool that will drive this model," said Borgstrom. "So if users want to write their tests at an even higher level, they can fill out a template of the transaction mix they want, and VN Control will use the configuration files to test their design."

The PCI-X 2.0 Verification Suite starts at $30,000 for a one-year subscription license. For that price users get the bus functional model and related simulation/testbench components. A one-year subscription for the property library is $15,000 more.

- Michael Santarini

EE Times





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