Industry Expert Blogs
CCIX Over PCIe: Faster Coherent Interconnects for AI, Networking, 4G/5G, and Storage DesignsVIP Experts Blog - SynopsysOct. 15, 2018 |
Next generation SoC designs require faster coherent interconnects for high performance applications such as machine learning, network processing, storage off-load, in-memory data base and 4G/5G wireless technology. CCIX (Cache Coherent Interconnect for Accelerators), a new protocol standard, provides benefits of cache coherency and peer processing which enables the faster interconnect. CCIX is designed smartly to use the well-established PCIe infrastructure to carry coherency packets across the link with little modification. CCIX specification is compatible with PCIe base specification 4.0. PCIe implementation is extended to implement a CCIX transaction layer, responsible for carrying the coherency messages.