Vendor: Sifive, Inc. Category: Vector Processor

High performance Linux capable vector processor

The SiFive Intelligence VIU75 Standard Core is a single-core instantiation of our RISC-V application processor with vector extens…

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Overview

The SiFive Intelligence VIU75 Standard Core is a single-core instantiation of our RISC-V application processor with vector extensions and is capable of supporting full-featured operating systems such as Linux.

The VIU75 is ideal for applications requiring high-throughput, single-thread performance while under power constraints (e.g., AR, VR, sensor hubs, IVI systems, IP cameras, digital cameras, gaming devices).

Key features

  • Base core derived from SiFive U7 series
    • RV64GCV ISA with Sv39 or Sv48 support
    • 8-stage dual-issue in-order pipeline with decoupled vector unit
    • Machine, Supervisor, and User privilege modes
    • Full TLB-based MMU for Linux-based environments
    • Single and Coherent multi-core IP platform options
  • RISC-V Vector ISA extensions v1.0
    • Floating-point, fixed-point, and integer data types
    • Vector computation up to 256b/cycle on 8b to 64b datatypes
  • Other key attributes support
    • Configurable S7 core(s) can support System boot/monitor, Sensor Hub/Fusion, and Security Co-Processor
    • Private L2$
    • Up to 16 PMP regions with 4KB granularity
    • Supports SiFive WorldGuard security
    • Leverages existing SiFive Insight Advanced Trace & Debug hardware solutions

Block Diagram

VIU75 block diagram

What’s Included?

  • RTL Evaluation
  • Test Bench RTL
  • Software Development Kit
  • FPGA Bitstream
  • Documentation

Specifications

Identity

Part Number
VIU75
Vendor
Sifive, Inc.
Type
Silicon IP

Files

Product Sheet Download

Note: some files may require an NDA depending on provider policy.

Provider

Sifive, Inc.
HQ: USA
SiFive brings the power of the open source RISC-V ISA combined with innovations in CPU IP to the semiconductor industry, making it possible to develop domain-specific silicon faster than ever before. With its OpenFive business unit, the industry leaders in domain-specific silicon, SiFive is accelerating the pace of innovation for businesses large and small.
Contact Sifive, Inc.

Learn more about Vector Processor IP core

MultiVic: A Time-Predictable RISC-V Multi-Core Processor Optimized for Neural Network Inference

Real-time systems, particularly those used in domains like automated driving, are increasingly adopting neural networks. From this trend arises the need for high-performance hardware exhibiting predictable timing behavior. While state-of-the-art real-time hardware often suffers from limited memory and compute resources, modern AI accelerators typically lack the crucial predictability due to memory interference. The authors present a new hardware architecture to bridge this gap between performance and predictability.

Integrating eFPGA for Hybrid Signal Processing Architectures

As system requirements evolve toward multi-standard, reconfigurable platforms, signal processing architectures are under pressure to deliver both ASIC-class performance and software-like flexibility. Semiconductor engineers face a fundamental tradeoff: fixed logic yields, unmatched throughput, and efficiency, but cannot adapt once taped out. Software-programmable solutions offer flexibility but often miss hard real-time performance constraints and can consume more power.

FeNN-DMA: A RISC-V SoC for SNN acceleration

Spiking Neural Networks (SNNs) are a promising, energy-efficient alternative to standard Artificial Neural Networks (ANNs) and are particularly well-suited to spatio-temporal tasks such as keyword spotting and video classification. However, SNNs have a much lower arithmetic intensity than ANNs and are therefore not well-matched to standard accelerators like GPUs and TPUs. Field Programmable Gate Arrays (FPGAs) are designed for such memory-bound workloads and here we develop a novel, fully-programmable RISC-V-based system-on-chip (FeNN-DMA), tailored to simulating SNNs on modern UltraScale+ FPGAs.

Frequently asked questions about Vector Processor IP cores

What is High performance Linux capable vector processor?

High performance Linux capable vector processor is a Vector Processor IP core from Sifive, Inc. listed on Semi IP Hub.

How should engineers evaluate this Vector Processor?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this Vector Processor IP.

Can this semiconductor IP be compared with similar products?

Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.

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