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PCIe to UCIe Bridge IP
Design IP
Overview

SmartDV’s PCIe to UCIe Bridge IP enables seamless interoperability between established PCI Express ecosystems and emerging Universal Chiplet Interconnect Express (UCIe) architectures. It provides a reliable, high-throughput bridge for efficient data exchange between chiplets and traditional SoC components, supporting scalable system designs across data center, AI, and high-performance computing applications.

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 multiple PCIe generations and UCIe protocol profiles, with robust error handling, flow control, and clock domain crossing mechanisms to ensure smooth, standards-compliant integration.

Benefits
  • Interconnect Across Domains – Enables seamless bridging between PCI Express-based systems and UCIe-compliant chiplets, supporting UCIe 1.0, 1.1, and 2.0 specifications
  • High-Speed, Scalable Performance – Supports PCIe Gen1 through Gen5 and UCIe link speeds of 4, 8, 12, 16, 24, and 32 GT/s across 16, 32, or 64 lanes with UCIe clock rates up to 4 GHz
  • Protocol Translation with Reliability – Accurately maps PCIe TLPs and DLLPs to UCIe flits with full handling of flow control, CRC, retries, and flit formatting
  • Configurable Integration – Supports Endpoint and Root Complex modes, standard and advanced packages, and multiple UCIe flit formats including standard 256B, raw, and latency-optimized formats
  • Robust Link Management – Includes sideband messaging, mailbox communication, dynamic link training, retry of failed initializations, and power management capabilities
  • Optimized for Data-Centric Workloads – Maintains ordering rules, supports isochronous and non-isochronous traffic, and ensures low-latency communication across host and chiplet domains
  • Designed for SoC and Chiplet Architectures – Provides clean interfacing with PCIe controller on one side and UCIe PHY/link on the other, ideal for multi-die compute, AI, and HPC systems
Compliance and Compatibility
  • Fully compliant with PCI Express® Base Specification (up to Gen5) and UCIe 1.0 / 1.1 / 2.0 standards
  • Supports Standard and Advanced UCIe packages, including Endpoint and Root Complex modes
  • Compatible with all major EDA synthesis, simulation, and linting flows