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Overview

SmartDV’s AXI Multilayer Interconnect IP is a silicon-proven, high-performance AMBA AXI bus fabric solution purpose-built for SoC designs requiring high-throughput, low-latency multi-master interconnect across AI/ML accelerators, automotive SoCs, high-performance computing, and data center application designs. Fully compliant with the ARM AMBA AXI5 Protocol Specification and backward compatible with AXI4, AXI4-Lite, and AXI3, it delivers complete master and slave connectivity with all standard data and address widths, separate address, data, and response phases, separate read and write channels, and support for multiple outstanding transactions with no strict timing relationship between address and data operations.

Designed to maximize bandwidth in multi-master SoC designs, the IP supports all AXI protocol transfer types, burst types, burst lengths, burst sizes, and response types, alongside narrow transfer support, unaligned address access, and burst-based transactions with only start address issued. Its ability to support multiple simultaneous outstanding transactions across independent read and write channels gives SoC interconnect teams a production-tested, high-performance AXI multilayer fabric that handles the most demanding AI and data center interconnect bandwidth requirements.

Built for design flexibility and silicon efficiency, the IP core is highly configurable for both ASIC and FPGA implementations, with a strong focus on area optimization, power management, and peak performance. Its parameterized master and slave count, configurable bus widths, and clean integration interface enable fast design bring-up across a wide range of process nodes and target applications.

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AXI Multilayer Interconnect
Key Features
  • Full AXI Multilayer Interconnect Functionality – Complete master and slave connectivity with all standard data and address widths per ARM AMBA AXI5, backward compatible with AXI4, AXI4-Lite, and AXI3
  • Comprehensive Transfer Type Support – All transfer types, burst types, burst lengths, burst sizes, and response types with separate read and write channel operation
  • Multiple Outstanding Transaction Support – Ability to issue multiple simultaneous outstanding transactions across independent read and write channels for maximum interconnect throughput
  • Narrow and Unaligned Transfer Support – Narrow transfer and unaligned address access support for complete protocol coverage
  • Burst Optimization – Burst-based transactions with only start address issued for efficient bus utilization
  • Separate Channel Architecture – Separate address, data, and response phases with separate read and write channels and no strict timing relationship between address and data operations
  • AXI5 Feature Support – Configurable support for atomic transactions, cache stashing, and QoS Accept signaling for masters and slaves requiring AXI5-level coherency and traffic management
Compliance and Compatibility
  • Fully compliant with the latest ARM AMBA AXI5 Protocol Specification; backward compatible with AXI4, AXI4-Lite, and AXI3
  • Configurable SoC interface supporting integration with any AMBA AXI master and slave IP
  • Compatible with ASIC and FPGA design flows across leading foundry process nodes
  • Compatible with all major EDA synthesis, simulation, and linting flows

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