42 Acronyms and Abbreviations
The table below contains acronyms and abbreviations used in this document.
| Abbreviation | Description |
|---|---|
| AC | Analog Comparator |
| ACK | Acknowledge |
| ADC | Analog-to-Digital Converter |
| ADDR | Address |
| AES | Advanced Encryption Standard |
| ALU | Arithmetic Logic Unit |
| AREF | Analog reference voltage, also VREFA |
| BLB | Boot Lock Bit |
| BOD | Brown-out Detector |
| CAL | Calibration |
| CCMP | Compare/Capture |
| CCL | Configurable Custom Logic |
| CCP | Configuration Change Protection |
| CLK | Clock |
| CLKCTRL | Clock Controller |
| CRC | Cyclic Redundancy Check |
| CTRL | Control |
| DAC | Digital-to-Analog Converter |
| DFLL | Digital Frequency Locked Loop |
| DMAC | DMA (Direct Memory Access) Controller |
| DNL | Differential Nonlinearity (ADC characteristics) |
| EEPROM | Electrically Erasable Programmable Read-Only Memory |
| EVSYS | Event System |
| GND | Ground |
| GPIO | General Purpose Input/Output |
| I2C | Inter-Integrated Circuit |
| IF | Interrupt flag |
| INL | Integral Nonlinearity (ADC characteristics) |
| INT | Interrupt |
| IrDA | Infrared Data Association |
| IVEC | Interrupt Vector |
| LSB | Least Significant Byte |
| LSb | Least Significant bit |
| LUT | Look Up Table |
| MBIST | Memory Built-in Self-test |
| MSB | Most Significant Byte |
| MSb | Most Significant bit |
| NACK | Not Acknowledge |
| NMI | Non-maskable interrupt |
| NVM | Nonvolatile Memory |
| NVMCTRL | Nonvolatile Memory Controller |
| OPAMP | Operation Amplifier |
| OSC | Oscillator |
| PC | Program Counter |
| PER | Period |
| POR | Power-on Reset |
| PORT | I/O Pin Configuration |
| PTC | Peripheral Touch Controller |
| PWM | Pulse-width Modulation |
| RAM | Random Access Memory |
| REF | Reference |
| REQ | Request |
| RISC | Reduced Instruction Set Computer |
| RSTCTRL | Reset Controller |
| RTC | Real-time Counter |
| RX | Receiver/Receive |
| SERCOM | Serial Communication Interface |
| SLPCTRL | Sleep Controller |
| SMBus | System Management Bus |
| SP | Stack Pointer |
| SPI | Serial Peripheral Interface |
| SRAM | Static Random Access Memory |
| SYSCFG | System Configuration |
| TC | Timer/Counter (Optionally superseded by a letter indicating type of TC) |
| TRNG | True Random Number Generator |
| TWI | Two-wire Interface |
| TX | Transmitter/Transmit |
| ULP | Ultra Low Power |
| UPDI | Unified Program and Debug Interface |
| USART | Universal Synchronous and Asynchronous Serial Receiver and Transmitter |
| USB | Universal Serial Bus |
| VDD | Voltage to be applied to VDD |
| VREF | Voltage Reference |
| VCM | Voltage Common mode |
| WDT | Watchdog Timer |
| XOSC | Crystal Oscillator |