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CXL: Coherency, Memory, and I/O Semantics on PCIe Infrastructure (.PDF Download)

April 28, 2021

Read this article online.

The Compute Express Link (CXL) is an open industry-standard interconnect offering coherency and memory semantics using high-bandwidth and low-latency connectivity between host processor and devices such as accelerators, memory buffers, and smart I/O devices. CXL is based on the PCI Express (PCIe) 5.0 physical-layer infrastructure with plug-and-play interoperability between PCIe and CXL devices on a PCIe slot.