17.2 Overview

The Peripheral Access Controller (PAC) provides an interface for locking and unlocking peripheral registers within the device. It reports all violations that may occur when accessing a peripheral, including write-protected access, illegal access, enable-protected access, and access during clock synchronization or a software reset. These errors are reported by a unique interrupt flag for each peripheral. The PAC module also reports errors occurring at the client bus level when access to a non-existing address is detected.