Express Yourself


Ready to Start Your PCI Express 4.0 Designs?

This seems strange to ask you, but “are you ready to start designing with PCI Express 4.0?” Why does it seem strange to ask? It’s because PCI Express 4.0 was announced in November 2011 and the 0.3 version of the specification isn’t out yet (although I hear that it could happen in a few days).  My very first blog posting was about PCI Express 4.0 on November 4th, 2012 “World Domination: PCI Express (4), Dr. Evil (0)”. With so much time passing, why would I write about it today and ask if you’re ready to start designing with PCI Express 4.0? Here is why:  Synopsys announced our PCI Express 4.0 solution today. You can read all about it via our press release “Synopsys Unveils Industry’s First Complete PCI Express 4.0 solution”. We are providing digital controllers, PHYs and Verification IP that all support the new 16GT/s speeds in the PCI Express 4.0 specification, so you can include PCI Express 4.0 into your latest designs. Here are the highlights from the press release:


  • Industry’s first complete PCI Express® 4.0 IP solution, supporting the latest PCI Express 4.0 standard, will be featured on June 4th at the PCI-SIG® Developers Conference 2014 in Santa Clara, Calif.
  • Synopsys DesignWare® Controller IP for PCI Express 4.0 architecture provides port logic for endpoints, root complex, dual mode (endpoint/root complex) and switch applications with minimized latency, gate count and power consumption
  • Verification IP for PCI Express 4.0 architecture will verify PCI Express endpoints, switch and root complex devices with software/firmware equivalent application layers that vastly simplify testbench development
  • DesignWare PHY IP for PCI Express 4.0 architecture, currently in development, will offer advanced equalization capabilities to increase signal integrity at high speed data rates across legacy channels while offering optimized active and standby power
  • Availability of high-quality IP with early support for the PCI Express 4.0 specification lowers integration risk and accelerates availability of devices incorporating the new 16 GT/s speed

PCI Express 4.0 doubles the throughput over the previous 8GT/s supported PCI Express 3.0. A comparison chart between the different speeds supported in the PCI Express specification is shown below:

PCI Express 4.0 is backwards compatible with prior generations. While the PCIe 4.0 specification is still in development, the expectation for transitioning from PCIe 3.0 to PCIe 4.0 should be fairly straight forward, much like the PCIe 1.0 to PCIe 2.0 transition verses the PCIe 2.0 to PCIe 3.0 transition.

For those of you that already use the DesignWare PCI Express solution, you will find this an easy upgrade as it is built on top of the same architecture and keeping the interfaces and such the same. For those of you not using the our controller, come join the family of PCI Express users that  use the solution used by more than 880 users.

Richard and I always appreciate your support and it would be great to have you join our blog, which you can do by clicking here to subscribe.



Share and Enjoy:
  • Digg
  • Facebook
  • Google Bookmarks
  • Print
  • Twitter
  • StumbleUpon
  • LinkedIn
  • RSS