 Two Wire-interface(TWI) | This is the common API for TWIs |
 Clock Management | |
  System Clock Management | See sysclk_quickstart |
| MEGA reset cause | See reset_cause_quickstart |
| Assembler Support | This group provides a good handful of macros intended to smooth out the differences between various assemblers, similar to what compiler.h does for compilers, except that assemblers tend to be much less standardized than compilers |
| Macro Repeat | |
| Stringize | |
| Token Paste | |
| Program memory | |
| 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 | |
| TWI - Two-Wire Interface | See Quick start guide for MEGARF TWI driver |
| twi master Driver | This driver is the implementation of TWI module of megaRF device as master |
| twi slave Driver | This driver is the implementation of TWI module of megaRF device as slave |
| General Purpose Input/Output | This is the common API for GPIO |
| Common IOPORT API | See Quick start guide for the common IOPORT service |
| Generic board support | The generic board support module includes board-specific definitions and function prototypes, such as the board initialization function |
| Ioport_service_group |
1.8.5