17.4.2 Operation

The PAC module allows the user to set, clear or lock the write protection status of all peripherals on all Peripheral Bridges.

If a peripheral register violation occurs, the Peripheral Interrupt Flag Status and Clear n (INTFLAGn) registers are updated to inform the user on the status of the violation in the peripherals connected to the Peripheral Bridge n. The corresponding Peripheral Write Protection Status n (STATUSn) register gives the state of the write protection for all peripherals connected to the corresponding Peripheral Bridge n. Refer to the Peripheral Access Errors section for details.

The PAC module also reports the errors occurring at client bus level when an access to the reserved area is detected. The AHB Client Bus Interrupt Flag Status and Clear (INTFLAGAHB) register informs the user on the status of the violation in the corresponding client. Refer to the AHB Client Bus Errors section for details.

Write Control (WRCTRL) register in PAC module has no effect for the peripherals which are write-protected by Local Write-Protection set in the peripheral’s Write Protection Control (WPCTRL) register.