Getting security right in IoT requires a number of different elements, from a Root-of-Trust to a complete set of security features (e.g. isolation, encryption, authentication, secure provisioning, over-the-air update, device monitoring and many more). Designing this from scratch is time-consuming and increasingly more complex. Therefore, starting from a strong foundation makes designing security into your products much easier.
The Musca-A test chip is here not only to demonstrate Arm IP (allowing evaluation for SoC designers), but also to provide a reference implementation that can be reused in SoC products.
Musca-A is also a software development platform. Arm even uses it to develop the PSA trusted firmware, making it very easy to port to any device built on the same architecture. Developing secure software is now easier: Musca-A is your PSA development platform!