Memory Coherent InterconnectProduction Ready

CXL
IP Core

Compute Express Link 3.0 — the open industry standard for memory-coherent CPU-accelerator connectivity. Enabling disaggregated memory, GPU attachment, and multi-host coherent fabric for AI datacenters.

CXL 3.0 Compliant PCIe Gen 6 Base Cache Coherent ASIC Ready
Key Specifications
CXL 3.0
Spec Version
256 GB/s
Peak BW (×16)
Type 1/2/3
Device Types
Coherent
Memory Model
Protocol Stack
CXL.ioCXL.cacheCXL.mem
Physical Base
PCIe Gen 664 GT/sPAM4

The Memory Coherent Fabric of the AI Era

256 GB/s
Peak Bandwidth
3.0
CXL Version
Multi-Host
Fabric Support
Type 1/2/3
Device Modes

CXL (Compute Express Link) is the industry-standard protocol for high-bandwidth, cache-coherent CPU-to-device and CPU-to-memory interconnects. Built on the PCIe Gen 5/6 physical layer, CXL enables disaggregated memory architectures, coherent accelerator attachment, and smart memory devices — all critical for modern AI and HPC workloads.

Xtremesilica's CXL 3.0 IP implements all three CXL sub-protocols (CXL.io, CXL.cache, CXL.mem) and all three device types (Type 1 accelerator, Type 2 accelerator with memory, Type 3 memory device), delivered as synthesizable RTL for FPGA and ASIC.

Ready to Build with CXL?
Full CXL 3.0 IP for FPGA prototyping and production ASIC in weeks.