Here is a list of all modules:
BSPBoard Support Package
API for DK's
API for STKs and WSTKs
Common BSP for all kits
Device InitializationDevice Initialization using HAL configuration
Thunderboard Sense BSPBSP for Thunderboard Sense and Thunderboard Sense 2
BAP - Barometric Pressure SensorDriver for the Bosch Sensortec BMP280 pressure sensor
BOARD Module for Thunderboard SenseBoard hardware control, configuraton and miscellaneous functions
Power and Interrupt Controller DefinitionsThunderboard Sense 1 Power and Interrupt Controller register and bitfield definitions
BOARD Module for Thunderboard Sense 2Board hardware control, configuraton and miscellaneous functions
CCS811 - Indoor Air Quality SensorDriver for the Cambridge CMOS Sensors CCS811 gas and indoor air quality sensor
HALL - Hall Effect SensorDriver for Hall effect sensor
Si7210 - Hall Effect SensorDriver for the Silicon Labs Si7210 Hall effect sensor
ICM20648 - 6-axis Motion Sensor DriverDriver for the Invensense ICM20648 6-axis motion sensor
IMU - Inertial Measurement UnitInertial Measurement Unit driver
MIC - Microphone Driver (ADC)Driver for the Knowles SPV1840LR5H-B MEMS Microphone
MIC - Microphone Driver (I2S)Driver for the Invensense ICS-43434 MEMS Microphone
SI1133 - Ambient Light and UV Index SensorDriver for the Silicon Labs Si1133 Ambient Light and UV sensor
SI7021 - Relative Humidity and Temperature SensorDriver for the Silicon Labs Si7021 I2C Humidity and Temperature Sensor
Utility FunctionsUtility functions
DevicesSilicon Laboratories CMSIS-CORE device headers
ACMPEFR32FG14P_ACMP Register Declaration
ACMP Bit Fields
ADCEFR32FG14P_ADC Register Declaration
ADC Bit Fields
Alternate Function
Alternate Function Pins
Alternate Function Ports
CMUEFR32FG14P_CMU Register Declaration
CMU Bit Fields
CRYPTOEFR32FG14P_CRYPTO Register Declaration
CRYPTO Bit Fields
DMA Descriptor
DMAREQ Bit Fields
Device Information and Calibration
DEVINFO Bit Fields
Bit Fields
WTIMER Bit Fields
Unlock Codes
CoreProcessor and Core Peripheral Section
Peripheral Declarations
Peripheral Memory Map
Peripheral Offsets
Peripheral TypeDefsDevice Specific Peripheral Register Structures
EMUEFR32FG14P_EMU Register Declaration
EMU Bit Fields
FPUEHEFR32FG14P_FPUEH Register Declaration
FPUEH Bit Fields
GPCRCEFR32FG14P_GPCRC Register Declaration
GPCRC Bit Fields
GPIOEFR32FG14P_GPIO Register Declaration
GPIO Bit Fields
I2CEFR32FG14P_I2C Register Declaration
I2C Bit Fields
IDACEFR32FG14P_IDAC Register Declaration
IDAC Bit Fields
LDMAEFR32FG14P_LDMA Register Declaration
LDMA Bit Fields
LESENSEEFR32FG14P_LESENSE Register Declaration
LESENSE Bit Fields
LETIMEREFR32FG14P_LETIMER Register Declaration
LETIMER Bit Fields
LEUARTEFR32FG14P_LEUART Register Declaration
LEUART Bit Fields
MSCEFR32FG14P_MSC Register Declaration
MSC Bit Fields
PCNTEFR32FG14P_PCNT Register Declaration
PCNT Bit Fields
PRSEFR32FG14P_PRS Register Declaration
PRS Bit Fields
PRS SignalsPRS Signal names
RMUEFR32FG14P_RMU Register Declaration
RMU Bit Fields
ROM Table, Chip Revision InformationChip Information, Revision numbers
ROM Table Bit Field definitions
RTCCEFR32FG14P_RTCC Register Declaration
RTCC Bit Fields
SMUEFR32FG14P_SMU Register Declaration
SMU Bit Fields
TIMEREFR32FG14P_TIMER Register Declaration
TIMER Bit Fields
TRNGEFR32FG14P_TRNG Register Declaration
TRNG Bit Fields
USARTEFR32FG14P_USART Register Declaration
USART Bit Fields
VDACEFR32FG14P_VDAC Register Declaration
VDAC Bit Fields
WDOGEFR32FG14P_WDOG Register Declaration
WDOG Bit Fields
EMDRVEnergyAware drivers
DMADRVDMADRV Direct Memory Access Driver
EZRADIODRVEZR32 EzRadio Peripheral Interface Driver
API_LayerEzRadio API Layer

COMM_LayerEzRadio Communication Layer

HAL_LayerEzRadio HAL Layer

Plugin_SystemEzRadio Plugin System Layer, see Plugin System Layer for detailed documentation.

Auto_ACK_PluginAuto acknowledge plugin, see Plugin System Layer for detailed documentation.

CRC_Error_PluginCRC error plugin, see Plugin System Layer for detailed documentation.

Direct_Receive_PluginDirect receive plugin, see Plugin System Layer for detailed documentation.

Direct_Transmit_PluginDirect transmit plugin, see Plugin System Layer for detailed documentation.

PN9_PluginPseudo random transmit plugin, see Plugin System Layer for detailed documentation.

Plugin_ManagerPlugin manager, see Plugin System Layer for detailed documentation.

Receive_PluginReceive plugin, see Plugin System Layer for detailed documentation.

Transmit_PluginTransmit plugin, see Plugin System Layer for detailed documentation.

Unmod_Carrier_PluginUnmodulated Carrier plugin, see Plugin System Layer for detailed documentation.

GPIOINTGPIOINT General Purpose Input/Output Interrupt dispatcher
NVM(DEPRECATED) NVM Non-volatile Memory Wear-Leveling Driver
NVM3NVM3 Non-Volatile Memory Management driver
NVM3HalNVM3 hal module
NVM3LockNVM3 lock module
RTCDRVReal-time Clock Driver
SLEEPSleep management driver
SPIDRVSPIDRV Serial Peripheral Interface Driver
TEMPDRVTEMPDRV Temperature Sensor Driver
UARTDRVUARTDRV Universal Asynchronous Receiver/Transmitter Driver
USTIMERUSTIMER Microsecond Delay Timer Driver
EMLIBLow-level peripheral library
ACMPAnalog comparator (ACMP) Peripheral API
ADCAnalog to Digital Converter (ADC) Peripheral API
ASSERTError checking module
BUSBUS register and RAM bit/field read/write API
CHIPChip errata workarounds initialization API
CMUClock management unit (CMU) Peripheral API
COMMONGeneral purpose utilities and cross-compiler support
CORECore interrupt handling API
CRYOTIMERUltra Low Energy Timer/Counter (CRYOTIMER) Peripheral API
CRYPTOCryptography accelerator peripheral API
DBGDebug (DBG) Peripheral API
EMUEnergy Management Unit (EMU) Peripheral API
GPCRCGeneral Purpose Cyclic Redundancy Check (GPCRC) API
GPIOGeneral Purpose Input/Output (GPIO) API
I2CInter-integrated Circuit (I2C) Peripheral API
IDACCurrent Digital-to-Analog Converter (IDAC) Peripheral API
INTSafe nesting of interrupt disable/enable API
LDMALinked Direct Memory Access (LDMA) Peripheral API
LESENSELow Energy Sensor (LESENSE) Peripheral API
LETIMERLow Energy Timer (LETIMER) Peripheral API
LEUARTLow Energy Universal Asynchronous Receiver/Transmitter (LEUART) Peripheral API
MPUMemory Protection Unit (MPU) Peripheral API
MSCMemory System Controller API
OPAMPOperational Amplifier (OPAMP) peripheral API
PCNTPulse Counter (PCNT) Peripheral API
PRSPeripheral Reflex System (PRS) Peripheral API
RAMFUNCRAM code support
RMUReset Management Unit (RMU) Peripheral API
RTCCReal Time Counter (RTCC) Peripheral API
SMUSecurity Management Unit (SMU) Peripheral API
TIMERTimer/Counter (TIMER) Peripheral API
USARTUniversal Synchronous/Asynchronous Receiver/Transmitter Peripheral API
VDACDigital to Analog Voltage Converter (VDAC) Peripheral API
WDOGWatchdog (WDOG) Peripheral API
Kit DriversKit support and drivers
DisplayDisplay device driver stack library. See Display Device Driver Stack for more information
TextdisplayLine based text output terminal interface on top of the DISPLAY device driver stack. See TextDisplay Library for more information
Platform MiddlewareSilicon Labs Gecko Platform Middleware for use with EFM32, EZR32 and EFR32 products
Capacitive Sensing Firmware LibraryCapacitive sensing firmware library for Silicon Labs MCUs
GLIBGraphics Library