AIC    Advanced Interrupt Controller (Atmel SAM)
ADC    Analog to Digital Conversion
ARP    Address Resolution Protocol (networking)
BCH    Block to Character
BINFMT Binary Format (Dynamic Loader)
CAN    Controller Area Network
CP15   Coprocessor 15 (ARM)
DEVIF  Device Interface (networking)
DAC    Digital to Analog Conversion
DEV    Device
DMA    Direct Memory Access (hardware)
DMAC   DMA Controller (hardware)
DRAM   Dynamic RAM
FAT    File Allocation Table (file systems)
FTL    FLASH Translation Layer (MTD)
HSMCI  High Speed Memory Card Interface (Atmel)
I/O    Input/Output
IP     Internet Protocol (version 4?) (networking)
IPv6   Internet Protocol Version 6 (networking)
IRQ    Interrupt Request
I2C    Inter-Integrated Circuit
I2S    Inter IC Sound
ICMP   Internet Control Message Protocol (networking)
IOB    I/O Buffer (networking)
LIBC   The "C" Library
MCI    Memory Card Interface
MM     Memory Management/Manager
MMAP   Memory Map
MMC    Multi-Media Card
MMCSD  See MMC and SD
MTD    Memory Technology Device
NFS    Network File System
NETDEV Network Device (networking)
NSH    NuttShell
NX     NuttX, the NuttX Graphics server (graphics)
NXFFS  NuttX Flash File System
NXWM   The NuttX Window Manager (graphics)
PID    Peripheral ID (Atmel SAM)
PWM    Pulse Width Modulation
PKT    "Raw" Packet socket (networking)
RAM    Random Access Memory
RTC    Real Time Clock
RTCC   Real Time Clock/Calendar
SAIC   Secure Advanced Interrupt Controller (Atmel SAM)
SD     Secure Digital
SDIO   Secure Digital I/O
SMC    Static Memory Controller (hardware)
SPI    Serial Periperhal Interface
TCP    Transmission Control Protocol (networking)
TSC    Touchscreen Controller
TWI    Two-Wire Interface
UDP    User Datagram Protocol (networking)
UART   Universal Asynchronous Receiver/Transmitter
USB    Universal Serial Bus
USART  Universal Synchronous/Asynchronous Receiver/Transmitter
WDT    Watchdog Timer
XDMAC  Extended DMA Controller (Atmel)