Introduction

This driver for Atmel® | SMART ARM®-based microcontroller provides an interface for the locking and unlocking of peripheral registers within the device. When a peripheral is locked, accidental writes to the peripheral will be blocked and a CPU exception will be raised.

The following peripherals are used by this module:

  • PAC (Peripheral Access Controller)

The following devices can use this module:

  • Atmel | SMART SAM D20/D21

  • Atmel | SMART SAM R21

  • Atmel | SMART SAM D09/D10/D11

  • Atmel | SMART SAM L21/L22

  • Atmel | SMART SAM DA1

  • Atmel | SMART SAM C20/C21

The outline of this documentation is as follows: