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Overview

SmartDV’s RapidIO Switch IP is a silicon-proven, fully featured packet-based fabric switching solution purpose-built for SoC and multi-node system designs requiring high-performance, deterministic interconnect switching across wireless infrastructure, defense, high-performance computing, and embedded systems applications. Fully compliant with RapidIO v4.1 and backward compatible with RapidIO v2.0 through v4.0, it delivers complete switch functionality across up to 4 ports with 1x, 2x, and 4x physical lane configurations, providing a proven, production-ready fabric switching foundation for complex multi-node RapidIO system designs.

Designed to address the full breadth of RapidIO switch requirements, the IP supports I/O system operations, message passing via mailboxes, and globally shared distributed memory access alongside complete packet type support, flow control, out-of-order transaction delivery based on prioritization, and critical request flow ordering. Its support for both 8-bit and 16-bit device IDs, 34, 50, and 66-bit addressing, and all capability and configuration status registers gives system designers a production-tested, spec-complete switch implementation that integrates cleanly into the most demanding multi-node RapidIO fabric topologies.

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 port and lane configuration, automatic resource management for acknowledged packets, and comprehensive interrupt architecture enable fast integration and confident design bring-up across a wide range of process nodes and target applications.

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RapidIO Switch
Benefits
  • Full RapidIO Switch Functionality – Complete switch implementation per RapidIO v4.1 supporting up to 4 ports with 1x, 2x, and 4x physical lane configurations at 1.25 and 2.5 Gbaud lane rates
  • Complete Protocol Layer Support – I/O system operations, message passing via mailboxes, and Globally Shared Memory (GSM) access for full RapidIO logical layer switching coverage
  • Comprehensive Packet Support – All RapidIO packet types and sizes with all IDLE sequences, Control and Status Symbols, and automatic resource freeing for acknowledged packets
  • Advanced Flow and Transaction Control – Flow control generation and reaction, out-of-order transaction delivery based on prioritization, and critical request flow ordering for deterministic fabric switching operation
  • Flexible Addressing and Device ID – 34-bit, 50-bit, and 66-bit addressing with 8-bit and 16-bit device IDs and 8b/10b encoding with scrambler/descrambler for robust high-speed serial switching operation
  • Complete Register Support – All Capability Registers (CARs) and Configuration and Status Registers (CSRs) for full RapidIO switch management and diagnostics
  • Comprehensive Interrupt Support – Per-error-type interrupt generation and serial message reception complete interrupt for efficient event-driven switch operation
Compliance and Compatibility
  • Fully compliant with RapidIO v4.1 specification (VITA); backward compatible with RapidIO v4.0, v3.x, v2.2, and v2.0
  • Supports 8b/10b encoding for Gen1/Gen2 lane rates and 64b/67b encoding for Gen3/Gen4 lane rates
  • Configurable SoC interface supporting AMBA AXI, AHB, APB, and custom wrappers for seamless integration
  • 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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