I have just read this over at nV News that Denali Software is going to help nVidia with PCI Express:
Denali Software, Inc., the leading provider of electronic design automation (EDA) tools and intellectual property (IP) for chip interface design and verification, today announced that NVIDIA Corporation (Nasdaq: NVDA) has signed a multi-year agreement to license Denali's verification tools for use in its chip design efforts. NVIDIA engineers are now using Denali's PureSpec(TM) product to verify the correct operation of the PCI Express interface in its chip designs. The tool helps NVIDIA engineers catch potential bugs early in the development cycle before the design is implemented in silicon.
The PCI Express architecture is a new serial interconnect technology that replaces the current AGP standard in motherboards for the next generation of graphics applications. PCI Express significantly increases bandwidth between the central processing unit (CPU) and graphics processing unit (GPU) by enabling a balanced distribution of bandwidth to those applications that require it the most.
"NVIDIA is dedicated to delivering the highest quality products for our customers. PCI Express is a key technology for our next-generation GPUs and we've developed a very sophisticated verification environment to ensure the quality of this new interface," said Gopal Solanki, vice president of hardware engineering at NVIDIA. "Denali's reputation for verifying memory interfaces allowed us the opportunity to look at their product for PCI Express verification. As we evaluated PureSpec, we knew we had a winner when it caught a number of bugs that went undetected using other methods. We continue to be impressed by the tool's performance, and we have incorporated it into our overall verification methodology for our PCI Express interfaces."
With PureSpec, Denali is providing NVIDIA with best-in-class solution for both verifying their PCI Express interface and ensuring interoperability with other chips using the PCI Express standard. PureSpec is being used in the vast majority of the current PCI Express chip design efforts, and our unique ability to enable pre-silicon interoperability verification is a key value to NVIDIA and the PCI Express community in general."