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AHB Arbiter IP

Design IP
Overview

SmartDV’s AHB Arbiter IP is a silicon-proven, high-performance bus arbitration solution purpose-built for SoC designs requiring efficient, deterministic access management across multiple AHB masters and slaves. Fully compliant with the AMBA AHB5 specification, it delivers high-throughput, low-latency arbitration with a flexible architecture that scales to meet the interconnect demands of complex, multi-master SoC designs in mobile, automotive, and high-performance embedded systems.

What sets this IP apart is its per-slave arbitration architecture, which performs arbitration independently at each slave port rather than globally. This approach significantly reduces arbitration overhead and increases effective throughput by allowing masters to simultaneously access different slaves without contention, making it particularly well-suited for bandwidth-intensive SoC designs with multiple concurrent data paths.

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 fully synthesizable, static synchronous design with positive edge clocking and no internal tri-states enables confident integration and streamlined bring-up across a wide range of process nodes and target applications.

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AHB Arbiter
Benefits
  • Configurable Multi-Master and Multi-Slave Support – Fully configurable number of AHB masters and slaves for flexible SoC interconnect topologies
  • Per-Slave Arbitration Architecture – Independent arbitration at each slave port for higher throughput and reduced arbitration overhead across concurrent master accesses
  • Round-Robin and Priority-Based Arbitration – Selectable arbitration policy per slave for flexible QoS management across different traffic classes
  • Full AHB Protocol Support – All transfer types, burst transfers, response types, and transfer sizes supported per AMBA AHB5 specification
  • Advanced Error Handling – Early burst termination on error response, two-cycle error response, and response generation with wait states for robust fault management
  • Configurable Data Bus Endianness – Supports both big-endian and little-endian data bus configurations for broad processor compatibility
  • Locked Transfer Support – Atomic locked transfer support for semaphore-type operations in multi-master environments
Compliance and Compatibility
  • Fully compliant with ARM AMBA AHB5 specification
  • Backward compatible with AMBA AHB-Lite and AMBA 2 AHB
  • Configurable SoC interface with standardized user interface signals for easy integration with any 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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