New Cortex-M chips add ARMv8 and TrustZone
ARM launched its first Cortex-M MCUs with ARMv8-M and TrustZone security: the tiny, low-power Cortex-M23 and faster Cortex-M33.
At the ARM TechCon show in Santa Clara, ARM unveiled two new Cortex-M microprocessors that will likely emerge as major Internet of Things workhorses over the coming decade, supplanting most existing Cortex-M designs. The Cortex-M23 and Cortex-M33 are also the first Cortex-M processors with ARMv8-M technology, enabling ARM TrustZone security, among other benefits. The TrustZone support is enabled via a new IoT-oriented CoreLink SIE-200 network-on-chip, which adds IP blocks on top of the AMBA 5 AHB5 interface. ARM also announced a TrustZone CryptoCell-312 technology for creating secure SoCs based on ARMv8-M.
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