36 Acronyms and Abbreviations
The below table 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 |
| EEPROM | Electrically Erasable Programmable Read-Only Memory |
| EVSYS | Event System |
| GND | Ground |
| GPIO | General Purpose Input/Output |
| I2C | Inter-Integrated Circuit |
| IF | Interrupt flag |
| INT | Interrupt |
| IrDA | Infrared Data Association |
| IVEC | Interrupt Vector |
| LUT | Look-Up Table |
| MBIST | Memory built-in self-test |
| NACK | Not Acknowlege |
| NMI | Non-maskable interrupt |
| NVM | Non-Volatile Memory |
| NVMCTRL | Non-Volatile Memory Controller |
| 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| TC | Timer/Counter (Optionally superseded by a letter indicating type of TC) |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 |
| VDD | Voltage to be applied to VDD |
| VREF | Voltage reference |
| WDT | Watchdog Timer |
| XOSC | Crystal Oscillator |