RISC-V high performance CPU

Overview

The RISC-V high performance CPU is targeted at data center, edge, and other general computing applications. The configurable CPU cluster can be integrated as IP within an SoC, delivered as an optimized compute chiplet, or within an ASSP/CSSP SiP standard product.

Veyron is a server-class CPU, meeting all the requirements to run virtualized cloud-native workloads and adhering to robust data center requirements. The V1 IP portfolio includes key RISC-V system IP components such as an IOMMU, and its interface is compliant to common AMBA protocol standards, such that complete high performance system solutions can be easily integrated with available third-party IP.

Key Features

  • Performance
    • Aggressive eight-wide deep out-of-order pipeline
    • Unique 512KB IL2(I-cache) with DL1/DL2 (512KB) split vs unified 1MB L2
    • Large high-bandwidth cluster-level shared L3 cache (up to 48MB)
    • Large BTB/TLB structures important for data center applications
    • AMBA CHI 256-bit system interface
  • Perf/W Optimization
    • Configurable TDP to define the desired performance-power profile
    • Turbo profile management to maximize performance within a TDP
    • Cluster-level and per-core digital power models to control turbo behavior
  • Server-Class
    • Full architectural support for virtualized workloads
    • Comprehensive RAS (ECC, error logging/scrubbing, data poisoning)
    • Patented new microarchitecture resilient to side-channel attacks
    • Top-down performance analysis methodology for software optimization
  • Implementation Details
    • Configurable as 1/2/4/8/16-core clusters, 0.75/1.5/3MB L3 slice per core
    • Highly portable design with no custom macros or RAMs dependencies

Block Diagram

RISC-V high performance CPU Block Diagram

Technical Specifications

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Semiconductor IP