| AC | Analog Comparator | 
| ADC | Analog-to-Digital Converter | 
| AES | Advanced Encryption Standard | 
| AHB | Advanced High-performance Bus | 
| BOD | Brown-Out Detect | 
| BSS | Basic Service Set | 
| BQTF | Bluetooth Qualification Test Facility | 
| CBC | Cipher Block Chaining | 
| CBC-MAC | Cipher Block Chaining Message Authentication Code | 
| CCL | Configurable Custom Logic | 
| CFB | Cipher Feedback | 
| CRC | Cyclic Redundancy Check | 
| CTR | Counter | 
| DMT | Deadman Timer | 
| DMAC | Direct Memory Access Controller | 
| DSA | Digital Signature | 
| ECB | Electronic Code Book | 
| ECC | Error Correction Code | 
| ECC | Elliptic Curves Cryptography | 
| ECC GF | Elliptic Curve Cryptography Galois Field | 
| EIC | External Interrupt Controller | 
| ETB | Embedded Trace Buffer | 
| ETM | Embedded Trace Module | 
| FREQM | Frequency Meter | 
| GCM | Galois Counter Mode | 
| xIP | Execute-In-Place | 
| FPU | Floating Point Unit | 
| ICM | Integrity Check Module | 
| I/O | Input/Output | 
| IoT | Internet of Things | 
| I2C | Inter-Integrated Circuit | 
| LNA | Low Noise Amplifier | 
| MAC | Medium Access Control | 
| MCU | Microcontroller Unit | 
| MPU | Memory Protection Unit | 
| NVIC | Nested Vector Interrupt Controller | 
| OFB | Output Feedback | 
| OTA | Over-The-Air | 
| PA | Power Amplifier | 
| PLL | Phase-Locked Loop | 
| POR | Power-On Reset | 
| PPS | Peripheral Pin Select | 
| PSDU | Physical Layer Service Data Unit | 
| PTA | Packet Traffic Arbitration | 
| PUKCC | Public Key Cryptography Controller | 
| PUKCL | Public Key Cryptography Library | 
| PWM | Pulse Width Modulation | 
| QSPI | Quad I/O Serial Peripheral Interface | 
| RF | Radio Frequency | 
| RTCC | Real Time Counter | 
| RSA | Rivest-Shamir-Adleman | 
| RX | Receiver | 
| SERCOM | Serial Communication Interfaces | 
| SFD | Start Frame Delimiter | 
| STA | Station | 
| SAR | Successive Approximation Register | 
| SPI | Serial Peripheral Interface | 
| SWD | Serial Wire Debug | 
| T/C | Timers/Counters | 
| TCM | Tightly Coupled Memory | 
| TCP/IP | Transmission Control Protocol/Internet Protocol | 
| TPIU | Trace Port Interface Unit | 
| TRNG | True Random Number Generator | 
| TX | Transmitter | 
| UART | Universal Asynchronous Receiver-Transmitter | 
| WDT | Watchdog Timer | 
| XDS | Extreme Deep Sleep |