PLDA releases XpressCCIX controller IP supporting Cache Coherent Interface for Accelerators standard

PLDA released on Monday its XpressCCIX IP, supporting CCIX or Cache Coherent Interconnect for Accelerators (X). The decision to support CCIX is fueled by an increasing demand for higher throughput for PCIe-based systems, driven largely by enterprise and data center customers.

XpressCCIX is a configurable and scalable PCIe controller Soft IP designed for ASIC and FPGA implementation, and supporting the Cache Coherent Interconnect for Accelerators (CCIX) Extended Speed Mode (ESM) data rate. The XpressCCIX IP is compliant with the PCI Express 4.0, 3.1, 2.1, and 1.1 specifications, as well as with the PHY Interface for PCI Express (PIPE) specification, and CCIX Extended Speed Mode specification.

The IP can be configured to support endpoint, root port, switch port, and dual-mode topologies, allowing for a variety of use models. The provided Graphical User Interface (GUI) Wizard allows designers to tailor the IP to their exact requirements, by enabling, disabling, and adjusting a vast array of parameters, including size of buffers, PIPE interface width, low power support, SR-IOV, ECC, AER, etc. for optimal throughput, latency, size and power.

XpressCCIX IP is verified using multiple PCIe VIPs and testsuites.

The CCIX Consortium has developed the Cache Coherent Interconnect for Accelerators (X) protocol to enable a new class of interconnect focused on emerging acceleration applications such as machine learning, network processing, storage off-load, in-memory database and 4G/5G wireless technology.

PLDA has been a CCIX consortium member and CCIX adopter since 2016. PLDA’s XpressCCIX supports the CCIX ESM standard up to 25Gbps and provides designers with various benefits, including transparent upgrade to PCIe 5.0 (Gen5) without changes to the application logic; reduced gate count by implementing an optimized 512-bit datapath; and the ability to implement custom cache coherency mechanisms.

PLDA is working hand-in-hand with its PHY partners to enable easy implementation of CCIX and customers can now benefit from a range of proven PLDA controller + 25Gbps PHY combos for CCIX.

“PLDA’s support of the CCIX specification enables the ecosystem to take advantage of the increased bandwidth of the standard in their SoCs.” said Gaurav Singh, CCIX Consortium chairman. “Support for CCIX by IP providers like PLDA is a key step forward to enabling faster and more seamlessly integrated designs.”

“We are seeing increasing demand for higher performance PCIe interconnect,” said Arnaud Schleich, CEO of PLDA. “By adding CCIX support to our flagship PCIe controller IPs we are delivering up to 30 percent additional throughput performance to our valued customers while preserving compatibility with our current and future PCIe interface IPs.”


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