JEDEC crafts base standard for CXL memory modules

JEDEC has published the JESD317: Compute Express Link (CXL) Memory Module Base Standard to simplify system design and ease device specification. JESD317 defines the specifications for interface parameters, signaling protocols, environmental requirements, packaging, and other features as reference for specific target implementations of CXL-attached memory modules.

The JESD317 base standard leverages established industry-standard specifications, including the Storage Networking Industry Association’s EDSFF, as well as PCIe and CXL. According to JEDEC, it enables system providers to accommodate certain known devices, while leaving room for innovation. The base standard also supports system device slots designed to be compatible with both CXL-attached memory modules and conventional PCIe-attached NVMe drives.

The JESD317 document is available for free download here. Registration is required.