Rambus Inc. announced the availability of its PCI Express® (PCIe®) 6.0 Interface Subsystem comprised of PHY and controller IP. The Rambus PCIe Express 6.0 PHY also supports the latest version of the Compute Express Link™ (CXL™) specification, version 3.0. The Rambus PCIe 6.0 Interface Subsystem delivers data rates of up to 64 Gigatransfers per second (GT/s) and has been fully optimized to meet the needs of advanced heterogenous computing architectures. Within the subsystem, the PCIe controller features an Integrity and Data Encryption (IDE) engine dedicated to protecting the PCIe links and the valuable data transferred over them.

On the PHY side, full support for CXL 3.0 is available to enable chip-level solutions for cache-coherent memory sharing, expansion and pooling. Key features of the Rambus PCIe 6.0 Interface Subsystem include: Supports PCIe 6.0 specification including 64 GT/s data rate and PAM4 signaling. Implements low-latency Forward Error Correction (FEC) for link robustness.

Supports fixed-sized FLITs that enable high-bandwidth efficiency. Backward compatible to PCIe 5.0, 4.0 and 3.0/3.1. State-of-the-art security with an IDE engine (controller). Supports CXL 3.0 for new use models that optimize memory resources (PHY).