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CXS to UCIe Bridge IP
Design IP
Overview

SmartDV’s CXS to UCIe Bridge IP enables seamless connectivity between chiplet-based designs and traditional SoC architectures by bridging AMBA CXS interfaces with the UCIe standard. This IP core is ideal for high-performance, heterogeneous integration in applications spanning AI, HPC, automotive, and datacenter domains.

Designed for flexibility, the IP core is highly configurable to meet specific design requirements, supporting both ASIC and FPGA implementations while optimizing for area, power, and performance. It supports configurable data widths, low-latency data transfer, and robust clock domain crossing, ensuring efficient communication between host and chiplet components across die-to-die interfaces.

Benefits
  • Chiplet Interconnect Simplification – Bridges Arm AMBA CXS-based interfaces with UCIe-compliant chiplets, enabling seamless multi-die communication in heterogeneous systems
  • High-Speed, Low-Latency Operation – Supports UCIe link speeds of 4, 8, 12, 16, 24, and 32 GT/s, with clock frequencies from 500 MHz to 4 GHz and sideband speeds up to 800 MHz
  • Flexible Streaming Protocol Translation – Maps AMBA CXS streaming transactions to UCIe Streaming Protocol, with support for memory semantics, data ordering, and backpressure
  • Standards-Based and Configurable – Supports UCIe versions 1.0, 1.1, and 2.0 in both Endpoint and Root Complex modes, and supports Standard and Advanced UCIe packages
  • Robust Flit and Link Layer Support – Handles raw and streaming flit formats including standard 256B and latency-optimized modes, with support for CRC, flit retry, and protocol-level error handling
  • Sideband and Power Management Support – Includes sideband messaging, mailbox access, link training, parameter exchange, and UCIe Retimer compatibility
  • Optimized for Integration – Parameterized for 16, 32, or 64 lanes with programmable delays and backpressure handling, designed for AI, HPC, and chiplet-based SoC architecture
Compliance and Compatibility
  • Fully compliant with UCIe 1.0, 1.1, and 2.0 specifications
  • Compatible with AMBA 5 CXS protocol
  • Supports Standard and Advanced UCIe packages, including Endpoint and Root Complex modes
  • Compatible with all major EDA synthesis, simulation, and linting flows