Faster Intelligent IoT Device Design and Deployment 

Arm Corstone-315 includes software and an example subsystem integrating the Arm Cortex-M85 CPU, Arm DMA-350, Arm Mali-C55 ISP, and the second-generation NPU, Arm Ethos-U65. The subsystem includes built-in Armv8-M TrustZone technology for faster, secure SoC development. Corstone reduces complexity for the ASIC designer and the software developer to enable faster design and deployment of secure, AI-capable devices. Cortex-M85 is Arm’s highest performance Cortex-M processor, making Corstone-315 the perfect starting points for high-performance SoCs targeting a range of IoT applications.

Features and Benefits 

High Performance for Scalar, DSP, and ML

Corstone-315 is built on the Cortex-M85 processor, which offers microcontroller (MCU) performance for scalar, DSP, and ML workloads.

Intelligent Devices

The Ethos-U65 is a second-generation NPU in the Ethos-U product line, with support for traditional CNNs.

Simplify the IoT Product Design Cycle

Corstone-315 is available as an Arm IoT Reference Design Platform configuration, providing a unique approach to IoT software design.

Arm 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-315

Corstone-315 includes firmware, drivers, middleware, example applications, cloud integrations, ML models, and the example heterogenous compute Arm SSE-315 subsystem based on Cortex-M85. It also provides a range of complementary system IP, technical documentation, scripts, and analysis reports to accelerate the design and deployment of high performance, secure IoT devices. Explore the components of Corstone-315 below.

Software and Tools

Arm 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-315, download the comparison table.

Download Comparison Table

Related Products


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



Ethos-U65 is designed to accelerate ML inference in area-constrained embedded and IoT devices, and is available as an option with the Corstone-315 reference package.

Arm Mali-C55 Chip Icon


Configurable, energy-efficient, high-performance image signal processor to enable outstanding image quality in a very small silicon area.

Architecture and Technologies

A Foundation of Silicon Success

Talk with an Expert 

Find out how Arm Corstone-315 enables faster time-to-market for your secure, AI-capable, high-performance IoT systems.

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Getting Started

Explore resources and documentation to help start developing with Corstone-315.

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