Vendor: Sifive, Inc. Category: CPU

Multi-core capable 32-bit RISC-V CPU with vector extensions

The SiFive® Intelligence™ X160 core IP products are designed to meet the increasing requirements of embedded IoT and AI at the fa…

Overview

The SiFive® Intelligence™ X160 core IP products are designed to meet the increasing requirements of embedded IoT and AI at the far edge. With this 32-bit version, X100 series IP can be optimized for power efficiency and severely area-constrained applications.

The vector engine delivers increased performance for far edge AI and DSP applications, and multiple core interface options provide control and compute assistance for complex coprocessor usages when paired with larger accelerator engines.

Key features

SCALAR PROCESSING

  • 32-bit RISC-V ISA
  • Dual issue, in-order 8 stage superscalar pipeline

 VECTOR PROCESSING

  • 128-bit wide vector registers (vlen)
  • 64-bit datapath (dlen)
  • Int8 and BFloat16 support
  • Integer: 2x 32-bit/4x 16-bit/8x 8-bit per cycle
  • Floating point: 2x Single precision, 4x Half precision per cycle
  • RISC-V Vector Extension v1.0 (RVV1.0)
  • In-order sequencing of vector operations (decoupled from scalar execution)

 ADDITIONAL SPECS

  • Single and multi-core configurations, up to quad-cores
  • SiFive Custom Instruction Extension (SCIE)
  • Memory port with full duplex load/store bandwidth (8B read + 8B write)
  • Up to 16 Physical Memory Protection (PMP) regions
  • Optional SiFive WorldGuard security, up to 4 worlds supported

Block Diagram

Benefits

  • Efficient Vector Engine provides the ability to accelerate AI models at the far edge using low power and limited silicon area, including filters, transforms, convolutions and AI inference. Also enables acceleration of other functions, such as DSP algorithms.
  • Accelerator Control and Assist enables X100 series to be used as an Accelerator Control Unit (ACU), providing accelerator control and assist functions to a customer’s accelerator engine via the specialized co-processor interfaces (SSCI and VCIX). This allows customers to focus on the data processing capabilities and innovations at the platform level and simplifies the software stack.
  • Extensive Configurability to match your product requirements and use case.

Specifications

Identity

Part Number
Intelligence X160 Gen 2
Vendor
Sifive, Inc.
Type
Silicon IP

Compute

CPU Architecture
RISC-V

Files

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

Provider

HQ: USA

Learn more about CPU IP core

X100 - Securing the System - RISC-V AI at the Edge

For years, SiFive has been delivering a range of security capabilities that are optimized for deployment throughout the system, tightly coupled to products from its broad portfolio of processors. Building on the prior blogs that centered on performance and effective coupling of accelerators, I wanted to focus this blog on security and its role in the growing popularity of the SiFive Intelligence X100 product family.

Frequently asked questions about CPU IP cores

What is Multi-core capable 32-bit RISC-V CPU with vector extensions?

Multi-core capable 32-bit RISC-V CPU with vector extensions is a CPU IP core from Sifive, Inc. listed on Semi IP Hub.

How should engineers evaluate this CPU?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this CPU 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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