Embedded World: Cypress adds Arm secure firmware to PSoC6

Cypress Semiconductor has implemented Arm's Platform Security Architecture (PSA) Trusted Firmware-M reference example on Cypress' PSoC 6 MCUs.

Mar. 05, 2018 – 

"PSA is a set of threat models, security analyses, hardware and firmware architecture specifications, and an open source firmware reference implementation," said Arm. "It provides a recipe, based on industry best practice, that allows security to be consistently designed in, at both a hardware and firmware level. PSA is scalable for all connected devices, offering common ground rules and a more economical approach to building more secure devices."

According to Cypress, it is achieving the highest level of protection defined by the PSA using PSoC 6's dual Cortex-M cores combined with configurable memory and peripheral protection units.

The MCUs provide three levels of hardware-based isolation to reduce the threat attack surface: