60 Acronyms and Abbreviations
The following table contains acronyms and abbreviations used in this document.
| Abbreviation | Description |
|---|---|
| AC | Analog Comparator |
| ADC | Analog-to-Digital Converter |
| ADDR | Address |
| AES | Advanced Encryption Standard |
| AHB | Advanced High-performance Bus |
| AMBA | Advanced Microcontroller Bus Architecture |
| APB | AMBA Advanced Peripheral Bus |
| AREF | Analog Reference Voltage |
| AVDD | Analog Supply Voltage |
| BOD | Brown-out Detector |
| CAL | Calibration |
| CC | Compare/Capture |
| CCL | Configurable Custom Logic |
| CLK | Clock |
| CRC | Cyclic Redundancy Check |
| CTRL | Control |
| DAC | Digital-to-Analog Converter |
| DAP | Debug Access Port |
| DFLL | Digital Frequency Locked Loop |
| DPLL | Digital Phase Locked Loop |
| DMAC | DMA (Direct Memory Access) Controller |
| DSU | Device Service Unit |
| EEPROM | Electrically Erasable Programmable Read-Only Memory |
| EIC | External Interrupt Controller |
| EVSYS | Event System |
| FDPLL | Fractional Digital Phase Locked Loop, also DPLL |
| FREQM | Frequency Meter |
| GCLK | Generic Clock Controller |
| GPIO | General Purpose Input/Output |
| I2C | Inter-Integrated Circuit |
| IF | Interrupt Flag |
| INT | Interrupt |
| MBIST | Memory Built-In Self-Test |
| MEM-AP | Memory Access Port |
| MIB | Management Information Base |
| MII | Media Independent Interface |
| MTB | Micro Trace Buffer |
| NMI | Non-maskable Interrupt |
| NVIC | Nested Vector Interrupt Controller |
| NVM | Nonvolatile Memory |
| NVMCTRL | Nonvolatile Memory Controller |
| OPAMP | Operation Amplifier |
| OSC | Oscillator |
| PAC | Peripheral Access Controller |
| PC | Program Counter |
| PER | Period |
| PM | Power Manager |
| POR | Power-on Reset |
| PORT | I/O Pin Controller |
| PTC | Peripheral Touch Controller |
| PWM | Pulse-Width Modulation |
| RAM | Random-Access Memory |
| REF | Reference |
| RMII | Reduced Media Independent Interface |
| RTC | Real-Time Counter |
| RX | Receiver/Receive |
| SEES | SmartEEPROM Sector |
| SEEP | SmartEEPROM Page |
| SERCOM | Serial Communication Interface |
| SLCD | Segmented Liquid Crystal Display |
| SMBus | System Management Bus |
| SNAP | Sub-Network Access Protocol |
| SP | Stack Pointer |
| SPI | Serial Peripheral Interface |
| SRAM | Static Random Access Memory |
| SUPC | Supply Controller |
| SYSCTRL | System Controller - not implemented in L21, 22 etc |
| SWD | Serial Wire Debug |
| TC | Timer/Counter |
| TRNG | True Random Number Generator |
| TX | Transmitter/Transmit |
| ULP | Ultra Low-Power |
| USART | Universal Synchronous and Asynchronous Serial Receiver and Transmitter |
| USB | Universal Serial Bus |
| VDD | Digital Supply Voltage |
| VREF | Voltage Reference |
| VSS/AVSS | Ground |
| WDT | Watchdog Timer |
| XOSC | Crystal Oscillator |