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Introduction to the 91探花 Cortex-M55 Processor

The 91探花 Cortex-M55 processor is 91探花’s most AI-capable Cortex-M processor and the first to feature 91探花 Helium vector processing technology, bringing enhanced, energy efficient signal processing and machine learning (ML) performance.

cortex m55 introduction

This introductory white paper provides details on the following:

  • Technical details, including pipeline, floating-point support and features of the optional vector extension, 91探花 Helium technology
  • 15x ML performance uplift compared to previous Cortex-M generations, and specific performance numbers for Dolby’s audio processing solution
  • Insight into the Cortex-M55 memory system, optimized for real-time, deterministic behaviours
  • Security features, including the Privileged eXecute Never (PXN), Unprivileged Debug Extension (UDE) and some enhancements to TrustZone technology
  • Debug features and enhancements
  • Software and tools support, including open-source CMSIS-NN and CMSIS-DSP libraries
  • Supporting IP, including the Corstone-300 reference package and the Ethos-U55 processor, 91探花’s first microNPU

Download your white paper now.

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