46 Appendix B: Acronyms and Abbreviations

Table 46-1. Acronyms and Abbreviations
Acronyms Abbreviations
AC Analog Comparator
ADC Analog-to-Digital Converter
AES Advanced Encryption Standard
AGC Automatic Gain Control
AHB Advanced High-Speed Bus
Apple® NCS Apple Notification Center Service
AON Always ON
APB Advanced Peripheral Bus
API Application Programming Interface
Arb Arbiter
BFM Boot Flash Memory
BG Bandgap
Bluetooth® LE Bluetooth Low Energy
BOD Brown-out Detect
BOM Bill of Material
BOR Brown-out Reset
CCL Configurable Custom Logic
CDM Charged Device Model
CFG System Configuration and Register Locking
CFGCON Configuration Control
CLDO Core Low Dropout Regulator
CLK Clock
CM Configuration Mismatch Reset
CM4CPU Cortex M4F Processor
CMCC Cortex M Cache Controller
CMR Configuration Mismatch Reset
CNCON Change Notice Control
CNEN Change Notice Enable
CNF Change Notice Flag
CNPDE Change Notice Pull-down Enable
CNPUE Change Notice Pull-up Enable
CNSTAT Change Notice Status
CP Charge Pump
CPU Central Processing Unit
CRC Cyclic Redundancy Check
CRM Continuous Read Mode
CoreSight ROM CoreSight ROM
CRU Clock and Reset Unit
CS Chip Select
CVD Capacitive Voltage Divider
DAC

Digital-to-Analog Converter

DAP Debug Access Port
DCC Debug Communication Channel
DDR Double Data Rate
DED

Double-bit Error Detected

DFE Digital Front-End
DMAC Direct Memory Access Controller
DMA RD DMA-Read
DMA WR DMA-Read
DMT Deadman Timer
DMTCON Deadman Timer Control
DMTEN Deadman Timer Enable
DMTR Deadman Timer Reset
DSCTRL Deep Sleep System Controller
DSP Digital Signal Processor
DSU Device Service Unit
DSWDT Deep Sleep WDT
DTI Dead-Time Insertion
ECC Error Correction Code
ECDH Elliptic-curve Diffie-Hellman encryption
EIC External Interrupt Controller
EOC End-Of-Convert
EOS Electrical Overstress
ERR Error
ESD Electrostatic Discharge
ETB Embedded Trace Buffer
ETM Embedded Trace Module
EVSYS Event System Interface
FC Flash Controller
FCS Frame Check Sequence
FEM Front-End Module
FPB Flash Patch and Breakpoint Unit
FPU Floating Point Unit
FRC Fast RC Oscillator
FRCDIV FRC Divider
FREQM Frequency Meter
FSCM Fail-safe Clock Monitor
FSM Finite State Machine
GATT Generic Attribute Profile (Bluetooth)
GCLK Generic Clock Controller
GND Ground
GPIO General Purpose I/O
HBM Human Body Model
HCI Host Controller Interface
I2C Inter-Integrated Circuit
IoT Internet of Things
IRQ Interrupt Request
ITM Instrumentation Trace Macrocell
LDO Low Dropout Regulator
LE Low-Energy
LIN Local Interconnect Network
LNA Low-Noise Amplifier
LO Local Oscillator
LPCLK Low Power Clock Generation
LPRC Low Power RC Oscillator
LUT Each Look-up Table
LVD Low-Voltage Detect
MCLRF Master Clear Filter
MCS Master Clock Switch
MCU Microcontroller Unit
MFRQ Match Frequency
MLDO Main LDO
MPU Memory Protection Unit
NDA Non-Disclosure Agreement
NFRQ Normal Frequency
NMCLR External Reset
NMI Non-maskable Interrupt
NMITR NMI Time-out Reset
NPWM Normal Pulse-Width Modulation
NVIC Nested Vector Interrupt Controller
NVM Non-Volatile Memory
NVMOP Non-Volatile Memory Operation
OCD On-Chip Debug
OTA Over-the-Air
OTF On-the-Fly
OTMX Output Matrix
OTP One Time Programmable
PA Power Amplifier
PAC Peripheral Access Controller
PCHE Prefetch Cache
PFM Program Flash Memory
PHY Physical Layer
PLL Phase-Locked Loop
PMD Peripheral Module Disable
PMU Power Management Unit
POR Power-on Reset
POSC Primary Crystal Oscillator
PPS Peripheral Pin Select
PPW Period and Pulse-Width
PSDU PLCP Service Data Unit
PSM Pulse Skipping Mode
PWM Pulse Width Modulation
QoS Quality of Service
QSPI Quad I/O Serial Peripheral Interface
QSPI Quad SPI interface
RAMECC RAM Error Correction Code
RCON Reset Control
REG Register
RF Radio Frequency
RFFE RF Front-End
RoT Root of Trust
RPC Remote Procedure Call
RSSI Receive Signal Strength Indication
RTC Real-Time Counter
RTCC Real-Time Clock Calender
RTOS Real-Time Operating System
RTSP Run-Time Self Programming
RX Receive
RXC Receive Complete
SEC Single-bit Error Corrected
SERCOM Serial Communication Interface
SERCOM I2C SERCOM Inter-Integrated Circuit
SFD Start Frame Delimiter (Zigbee®)
SFR Special Function Register
SHA Secure Hash Algorithm
SMBus™ System Management Bus
SoC System-on-Chip
SOSC Secondary Crystal Oscillator
SPI Serial Peripheral Interface
SRCON Slew Rate Control
SSL SPI Select Low
SWD Serial Wire Debug
SWR Software Reset
SWV Serial Wire Viewer
Synth Synthesizer
SYSRST System Reset
TC Timer Counter
TCC Timer Counter Control
TCM Tightly Coupled Memory
TPIU Trace Port Interface Unit
TRX Transmit/Receive
TX Transmit
TXC Transmit Complete
UART Universal Asynchronous Receiver/Transmitter
USART Universal Synchronous/Asynchronous Receiver/Transmitter
VGA Variable Gain Amplifier
WDT Watchdog Timer
WDTO Watchdog Time-out Reset
WDTR Watchdog Timer Reset
XDS Extreme Deep Sleep
XTAL Crystal Oscillator
ZPBOR Zero-power BOR