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Overview

SmartDV’s AXI to AHB Bridge IP is a silicon-proven, fully featured protocol bridge solution purpose-built for SoC designs requiring seamless connectivity between AXI masters and AHB slave peripherals across high-performance processor, DMA controller, and peripheral subsystem designs. Fully compliant with the latest AMBA AXI and AHB specifications, it enables AXI masters to access AHB slave resources with configurable data bus widths, address widths, and support for incrementing, wrapping, and fixed burst transfers with narrow transfer support, with simultaneous AXI write and read reception and read requests given high priority to the AHB interface.

Designed for the practical integration requirements of modern mixed AXI/AHB SoC designs, the bridge implements separate state machines for write, read, and response handling, address and data phase timeout support, and configurable HRESP signal usage per slave. Its simultaneous reception of write and read transfers with sequential AHB posting and read-priority arbitration gives SoC integration teams a production-tested AXI-to-AHB bridge optimized for responsive, high-performance peripheral access.

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 slave count, configurable bus widths, and clean integration interface enable fast design bring-up across a wide range of process nodes.

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AXI-AHB Bridge
Key Features
  • Full AXI to AHB Bridge Functionality – Complete AXI master to AHB slave connectivity with configurable AXI/AHB data bus widths, address bus width, and per-slave address space
  • Comprehensive Burst Type Support – Incrementing, wrapping, and fixed burst transfer support with narrow transfer capability
  • Read Priority Arbitration – Simultaneous write and read transfer reception with read request prioritized to AHB interface for responsive peripheral access
  • Separate Write and Read State Machines – Independent state machines for write, read, and response handling for reliable bridge operation
  • Address and Data Phase Timeout – Configurable address and data phase timeout for robust fault handling in AHB slave response scenarios
  • Configurable Bus Widths and Endianness – Independently configurable AXI and AHB data bus widths and endianness for flexible cross-bus integration
Compliance and Compatibility
  • Fully compliant with ARM AMBA AXI5; backward compatible with AXI4, AXI4-Lite, and AXI3
  • Fully compliant with ARM AMBA AHB5; backward compatible with AHB-Lite and AHB2
  • 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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