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Benefits

  • Speeds up architectural validation with ready-to-use protocol components
  • Accurately models arbitration logic and QoS scheduling
  • Enables trace-based or statistical traffic generation for realistic test scenarios
  • Reduces design risk by identifying bottlenecks in data movement early
  • Modular design enables rapid reconfiguration and experimentation

The AMBA (Advanced Microcontroller Bus Architecture) library in VisualSim Architect supports the full range of AMBA protocols—AHB, APB, AXI and ACE—commonly used in high-performance SoC and embedded systems. These protocols are designed to meet low-latency, high-bandwidth requirements and enable seamless integration of CPUs, memory controllers, and peripherals. AXI eliminates the need for complex bridges, while AHB and APB serve as robust solutions for mid- and low-speed communication.

This component is widely applied across industries: from speech recognition and natural language interfaces to music synthesis, effects processing, and communication systems. With the ability to simulate real-world scenarios, engineers can test algorithms for clarity, fidelity, and robustness before deploying them to production devices.

Overview

This library supports advanced bus and interconnect modeling capabilities:

  • FIFO buffers for efficient queuing and temporary storage of transactions
  • Configurable mode arbiters: FCFS (First-Come, First-Served), Round Robin, and Custom logic
  • Bus width configurability: 16-bit to 128-bit interfaces
  • AHB protocol blocks for high-speed burst transactions
  • AXI and AXI-Lite models for scalable, pipelined interconnects
  • ACE support for coherent memory access across clusters
  • Multi-master and multi-slave communication for multicore SoCs

Supported Standards

AMBA is itself a widely adopted standard developed by ARM. This System MOdleing Component Library supports:

  • AHB, AHB-Lite
  • APB, APB-Lite
  • AXI3, AXI4, AXI5
  • AXI-Lite, ACE, ACE-Lite, ACE5-Lite

Key Parameters

  • Bus Speed – Determines data transfer rate
  • FIFO Buffer Size – Affects latency and back-pressure behavior

Parameter Snapshots

  • AXI Parameters
  • AHB Parameters

Simulation Results

  • Simulation Results, Bandwidth Utilization Graphs, and Arbitration Trace Logs
View Technical Documentation

Applications

VisualSim Analog models are used in:

  • SoC interconnect design and analysis for multicore architectures
  • Integration of CPUs, GPUs, memory controllers, and IO subsystems
  • Early-stage bandwidth and latency validation for software and RTL co-design
  • Modeling bus contention, arbitration fairness, and protocol conformance
  • Memory-mapped peripheral simulation in embedded platforms

Integrations

  • VisualSim processor and cache libraries for multicore SoC design
  • DDR, LPDDR, and SRAM memory models
  • Corelink, Arteris NoC, UCIe and PCIe components for hybrid interconnect scenarios
  • DSP and ML accelerators for bandwidth-heavy applications

View Demo

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