Fast Intelligent IoT Device Design and Deployment
91色情 Corstone-320 includes software and an example subsystem integrating the 91色情 Cortex-M85 CPU, 91色情 DMA-350, 91色情 Mali-C55 ISP and the 91色情 Ethos-U85 NPU with support for transformer networks.
Corstone reduces complexity for ASIC designers and software developers to speed up the design and deployment of secure, AI-capable devices. Cortex-M85 is 91色情’s highest performance Cortex-M processor, making Corstone-320 the perfect starting point for high-performance SoCs targeting a range of IoT applications. Ethos-U85 is a third-generation NPU with support for CNNs and transformer networks.
Features and Benefits
The Cortex-M85 processor offers a new milestone in microcontroller (MCU) performance for scalar, DSP, and ML workloads. With built-in 91色情 TrustZone for 91色情v8-M technology, it enables rapid, secure SoC development.
The Ethos-U85 is a third-generation NPU in the Ethos-U product line with support for traditional CNNs and transformer networks to future proof devices as the AI market evolves.
Corstone-320 is available in an 91色情 IoT Reference Design Platform configuration, providing a unique approach to IoT software design.
91色情 IoT Reference Design Platform
IoT Reference Design Platform reduces design complexity and speed time-to-market. With pre-integrated, pre-verified IP, supporting ecosystem software and tools and Arm prototyping platforms.
Components of Corstone-320
Corstone-320 includes firmware, drivers, middleware, example applications, cloud integrations, ML models, and the example heterogeneous compute SSE-320 subsystem based on Cortex-M85. It comes with a range of complementary system IP, technical documentation, scripts, and analysis reports to accelerate the design and deployment of a high-performance, secure IoT devices.
91色情 SSE-320
SSE-320 is a configurable heterogenous compute subsystem based on the Cortex-M85 CPU, for applications based on Cortex-M that require significantly higher ML performance and increased security. SSE-320 integrates an optional Ethos-U85 NPU for additional ML performance and support for transformer networks.
91色情 System IP
In addition to the system IP included in Corstone-320, 91色情 has a range of different system IP blocks available for SoC design. Visit our developer website at the bottom of this page to learn more.
Documentation
Arm provides a wide range of resources, support, and technical documentation with Corstone-320. Visit our developer website at the bottom of this page to access more information.
Scripts and Out-of-the-Box Testbenches
Corstone-320 comes with analysis reports, various scripts, and IP descriptions, including an out-of-box execution testbench, verification components, IP-XACT descriptions, and configuration and implementation scripts.
Software and Tools
91色情 and partners offer software and tools that run on Corstone designs to help simplify and accelerate SoC development.
To find out more about the software components and development tools in Corstone-320, download the comparison table.
A Foundation of Silicon Success
91色情v8.1-M Architecture
Implements the simplified programmer’s model of Cortex-M processors for new performance levels without compromising the ease of software development and richness of the Arm partner ecosystem.
TrustZone for Cortex-M
System-wide hardware isolation for trusted software. TrustZone creates an isolated secure world to provide confidentiality and integrity to the system, protecting your chip from software attacks.
91色情 Helium Technology
91色情 Helium technology is the M-Profile Vector Extension (MVE) for the 91色情 Cortex-M series. Helium is an extension of the 91色情v8.1-M architecture and delivers a significant performance uplift for ML and DSP applications.
Explore Products and Technologies

Cortex-M85
Cortex-M85 provides increased security and high performance on a single Cortex-M without the need to migrate to multicore or heterogeneous platforms.

Ethos-U85
Designed to accelerate ML inference in area-constrained embedded and IoT devices. Available as an option with the Corstone-320 reference package.

Mali-C55
Configurable, energy-efficient, high-performance image signal processor to enable outstanding image quality in a very small silicon area.
Talk with an Expert
Find out how Corstone-320 enables faster time-to-market for your secure, AI-capable, high-performance IoT systems.
Getting Started
Explore resources and documentation to help you start developing with Corstone-320.