4.5.2. Synchronous library

Many use cases do not need the complexity of a Secure state operating system. A simple library of code in a Secure state can handle one task at a time, and is sufficient for many applications. This code library is entirely scheduled and managed using software calls from the Non-secure state operating system.

The Secure state in these systems is a slave to the Non-secure state and cannot operate independently. However, it can have a much lower level of complexity.

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