 Serial Peripheral Interface (SPI) | See Quickstart guide for SAM SPI driver |
| Power Management Controller (PMC) | |
| Peripheral Parallel Input/Output (PIO) Controller | |
| ILI9341 Display Controller Component Driver | See Quick Start Guide for the ILI9341 Display Controller Component Driver |
| Serial Peripheral Interface (SPI) | This is the common API for SPI interface |
 Compiler abstraction layer and code utilities | Compiler abstraction layer and code utilities for AT91SAM |
 Preprocessor - Macro Repeat | |
| Preprocessor - Stringize | |
 Preprocessor - Token Paste | |
| Global interrupt management | This is a driver for global enabling and disabling of interrupts |
| Deprecated interrupt definitions | |
| Atmel part identification macros | This collection of macros identify which series and families that the various Atmel parts belong to |
| AVR UC3 parts | |
| AVR XMEGA parts | |
| megaAVR parts | |
| SAM parts | |
| Clock Management | |
| Generic Clock Management | Generic clocks are configurable clocks which run outside the system clock domain |
| Oscillator Management | This group contains functions and definitions related to configuring and enabling/disabling on-chip oscillators |
| PLL Management | This group contains functions and definitions related to configuring and enabling/disabling on-chip PLLs |
| System Clock Management | See Quick Start Guide for the System Clock Management service (SAM4S) |
| Power Manager (PM) | This is a stub on the SAM Power Manager Control (PMC) for the sleepmgr service |
| Common IOPORT API | See Quick start guide for the common IOPORT service |
| Busy-Wait Delay Routines | This module provides simple loop-based delay routines for those applications requiring a brief wait during execution |
| SAM3A/3N/3S/3U/3X/4E/4N/4S/G Peripheral DMA Controller (PDC) Driver | This driver for Atmel® | SMART ARM®-based microcontrollers provides an interface for the configuration and management of the the Peripheral Direct Memory Access (DMA) Controller (PDC) module |
| Generic board support | The generic board support module includes board-specific definitions and function prototypes, such as the board initialization function |
| General Purpose Input/Output | This is the common API for GPIO |
1.8.5