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ARMv8-M Architecture ensures security for embedded designs

13 Nov 2015

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ARM is bringing security for devices based on ARM Cortex-M processors into the hardware layer to ensure developers have a fast and efficient way of protecting any embedded or Internet of Things (IoT) device. This is achieved with ARM TrustZone technology, offered as a feature in the latest ARMv8-M architecture.

TrustZone helps secure data, firmware, and peripherals by creating separate trusted and non-trusted states across the processor system. Beyond the architecture, ARM is taking data protection to the next level with the TrustZone CryptoCell product family. The enhanced security technology creates an additional layer of hardware security and enables the isolated storage of high value assets, offering optimised cryptography and the lifecycle management of key materials.

The architecture makes it easier for developers to write code that spans from the most energy-efficient to the highest performing ARMv8-M based processor. It also makes it easier to integrate low power ARM Cortex-M processors alongside more powerful Cortex-A processors, to allow the development of higher performance SoC products.

To complement the ARMv8-M architecture, the ARM AMBA 5 AHB5 specification has been launched to extend the TrustZone security foundation from the processor to the entire system for embedded designs. This version of the AHB interconnect standard is available to download and adds security controls as well as extended memory types required for higher performance embedded systems. AMBA 5 AHB5 supports ARMv8-M architecture and TrustZone technology.




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