 Power Management Controller (PMC) | |
| Peripheral Parallel Input/Output (PIO) Controller | |
| Universal Asynchronous Receiver Transceiver (UART) | The Universal Asynchronous Receiver Transmitter features a two-pin UART that can be used for communication and trace purposes and offers an ideal medium for in-situ programming solutions |
| General Purpose Backup Registers (GPBR) | Driver for the General Purpose Backup Registers |
| Supply Controller (SUPC) | Driver for the SUPC (Supply Controller) |
| Enhanced Embedded Flash Controller (EEFC) | The Enhanced Embedded Flash Controller ensures the interface of the Flash block with the 32-bit internal bus |
| Analog-to-digital Converter (ADC) | See Quickstart guide for SAM ADC driver |
| Watchdog Timer (WDT) | Driver for the WDT (Watchdog Timer) |
| Universal Synchronous Asynchronous | Receiver Transmitter (USART) |
 Standard I/O (stdio) | Common standard I/O driver that implements the stdio read and write functions on AVR and SAM devices |
  Standard serial I/O (stdio) | Common standard serial I/O management driver that implements a stdio serial interface on AVR and SAM devices |
| Serial Peripheral Interface (SPI) | See Quickstart guide for SAM SPI driver |
| EEPROM AT30TSE75X Series | Low-level driver for the AT30TSE75X Series EEPROM controller |
| Two-Wire Interface (TWI) | Driver for the TWI (Two-Wire Interface) |
| Implementation of SD/MMC/SDIO Stack | |
| FatFS file system service | Service of FatFS file system |
| Port of low level driver for FatFS | Low level driver for FatFS |
| Real-Time Clock (RTC) | See Quickstart guide for SAM RTC driver |
| Power Manager (PM) | This is a stub on the SAM Power Manager Control (PMC) for the sleepmgr service |
| 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) |
| General Purpose Input/Output | This is the common API for GPIO |
| Serial Interface (Serial) | See Quick start guide for Serial Interface service |
| Universal Synchronous Asynchronous Receiver | Transmitter (USART) |
| SSD1306 OLED Controller Low-level driver | This is a low level driver for the SSD1306 OLED controller through 4-wire SPI |
| 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 |
| Serial Peripheral Interface (SPI) | This is the common API for SPI interface |
| Two Wire-interface(TWI) | This is the common API for TWIs |
| SD/MMC/SDIO common stack | SD/MMC/SDIO basic APIs used by SD/MMC/SDIO memory APIs (sd_mmc_stack_mem_group) |
| Common SPI interface for SD/MMC stack | |
| Common SPI interface for SD/MMC stack | Implementation |
| SD/MMC Memory | SD/MMC memory APIs required by CTRL_ACCESS module (Memory Control Access) |
| Implementation of SD/MMC Memory | |
| SD/MMC Protocol Definition | |
| Memory Control Access | Common abstraction layer for memory interfaces |
 Generic board support | The generic board support module includes board-specific definitions and function prototypes, such as the board initialization function |
 SAM4S Xplained Pro board | |
| Configuration | Symbols to use for configuring the board and its initialization |
| Features | Symbols that describe features and capabilities of the board |
1.8.5