Intel® FPGA Compute Express Link (CXL) IP
First FPGA shipping with CXL hard IP with up to 4x more bandwidth per port.1
Now with support for CXL specification revision 1.1 and 2.0.
Intel® FPGA Compute Express Link (CXL) IP
Available with Quartus Prime Design Software v22.4
Compute Express Link (CXL) is the new processor to peripheral/accelerator link protocol. It is based on and adds additional functionality beyond the existing PCIe protocol by allowing coherent communication between the two sides. This allows a CXL link to enable efficient, low-latency, high-bandwidth performance when used with Look-aside or Inline Accelerators for Heterogenous computing.
For those looking to create or use an FPGA-based accelerator, the CXL protocol Hard IP is available within the R-tile, which is incorporated in selected members of the Intel Agilex® 7 FPGA I-series and Intel Agilex® 7 FPGA M-series families. Hard IP allows for full bandwidth PCIe 5.0 x16 configuration support, with minimal use of FPGA fabric resources.
Implementing CXL Discrete Accelerators with Intel Agilex® 7 FPGAs
Intel Agilex® 7 FPGAs support CXL via R-Tile hard IP.
Available as hard IP2 (HIP) on R-Tile:
- Realize full PCIe 5.0 x16 performance and fully validated with 4th Gen Intel® Xeon® processors
- Contact Intel for results of Compute Express Link Consortium workshop with Intel® FPGA CXL solution
- Compatible with Compute Express Link Consortium provided CXL certification software (CXL_CV_app)
FPGA support logic provided for each CXL device type:
- Accelerator Type 1 (Ordering Part Number: IP-CXLTYP1)
- Accelerator Type 2 (Ordering Part Number: IP-CXLTYP2)
- Memory expander Type 3 (Ordering Part Number: IP-CXLTYP3DDR)
- Includes FPGA design example, simulation3 model, and debug toolkit
- Selected example designs are optimized to work on targeted development kits
Flexible device-attached memory subsystem architecture:
- Allows user to mix & manage different memory types/controllers
- M20K blocks, DDR4, DDR5, LPDDR5, HBM2e, SSD
To activate the CXL hard IP and receive CXL soft R-Tile Wrapper and Soft Support logic, purchase/activation of a separate CXL IP license is required for proper use with the Intel® Quartus® Prime Design Software. Contact your local Intel Sales representative for pricing details.
To activate a free-of-charge 30- or 60-day trial IP license, please contact your local Intel Sales representative.