Here is a list of all modules:
BSP Board Support Package
API for DK's
API for STKs and WSTKs
Common BSP for all kits
Device Initialization Device Initialization using HAL configuration
Thunderboard Sense BSP BSP for Thunderboard Sense and Thunderboard Sense 2
BAP - Barometric Pressure Sensor Driver for the Bosch Sensortec BMP280 pressure sensor
BOARD Module for Thunderboard Sense Board hardware control, configuraton and miscellaneous functions
Power and Interrupt Controller Definitions Thunderboard Sense 1 Power and Interrupt Controller register and bitfield definitions
BOARD Module for Thunderboard Sense 2 Board hardware control, configuraton and miscellaneous functions
CCS811 - Indoor Air Quality Sensor Driver for the Cambridge CMOS Sensors CCS811 gas and indoor air quality sensor
HALL - Hall Effect Sensor Driver for Hall effect sensor
Si7210 - Hall Effect Sensor Driver for the Silicon Labs Si7210 Hall effect sensor
ICM20648 - 6-axis Motion Sensor Driver Driver for the Invensense ICM20648 6-axis motion sensor
IMU - Inertial Measurement Unit Inertial 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 Sensor Driver for the Silicon Labs Si1133 Ambient Light and UV sensor
SI7021 - Relative Humidity and Temperature Sensor Driver for the Silicon Labs Si7021 I2C Humidity and Temperature Sensor
Utility Functions Utility functions
Devices Silicon Laboratories CMSIS-CORE device headers
ACMP EFR32FG13P_ACMP Register Declaration
ACMP Bit Fields
ADC EFR32FG13P_ADC Register Declaration
ADC Bit Fields
Alternate Function
Alternate Function Pins
Alternate Function Ports
CMU EFR32FG13P_CMU Register Declaration
CMU Bit Fields
CRYPTO EFR32FG13P_CRYPTO Register Declaration
CRYPTO Bit Fields
CSEN EFR32FG13P_CSEN Register Declaration
CSEN Bit Fields
DMA Descriptor
DMAREQ Bit Fields
Device Information and Calibration
DEVINFO Bit Fields
Bit Fields
WTIMER Bit Fields
Unlock Codes
Core Processor and Core Peripheral Section
Peripheral Declarations
Peripheral Memory Map
Peripheral Offsets
Peripheral TypeDefs Device Specific Peripheral Register Structures
EMU EFR32FG13P_EMU Register Declaration
EMU Bit Fields
ETM EFR32FG13P_ETM Register Declaration
ETM Bit Fields
FPUEH EFR32FG13P_FPUEH Register Declaration
FPUEH Bit Fields
GPCRC EFR32FG13P_GPCRC Register Declaration
GPCRC Bit Fields
GPIO EFR32FG13P_GPIO Register Declaration
GPIO Bit Fields
I2C EFR32FG13P_I2C Register Declaration
I2C Bit Fields
IDAC EFR32FG13P_IDAC Register Declaration
IDAC Bit Fields
LDMA EFR32FG13P_LDMA Register Declaration
LDMA Bit Fields
LESENSE EFR32FG13P_LESENSE Register Declaration
LESENSE Bit Fields
LETIMER EFR32FG13P_LETIMER Register Declaration
LETIMER Bit Fields
LEUART EFR32FG13P_LEUART Register Declaration
LEUART Bit Fields
MSC EFR32FG13P_MSC Register Declaration
MSC Bit Fields
PCNT EFR32FG13P_PCNT Register Declaration
PCNT Bit Fields
PRS EFR32FG13P_PRS Register Declaration
PRS Bit Fields
PRS Signals PRS Signal names
RMU EFR32FG13P_RMU Register Declaration
RMU Bit Fields
ROM Table, Chip Revision Information Chip Information, Revision numbers
ROM Table Bit Field definitions
RTCC EFR32FG13P_RTCC Register Declaration
RTCC Bit Fields
SMU EFR32FG13P_SMU Register Declaration
SMU Bit Fields
TIMER EFR32FG13P_TIMER Register Declaration
TIMER Bit Fields
TRNG EFR32FG13P_TRNG Register Declaration
TRNG Bit Fields
USART EFR32FG13P_USART Register Declaration
USART Bit Fields
VDAC EFR32FG13P_VDAC Register Declaration
VDAC Bit Fields
WDOG EFR32FG13P_WDOG Register Declaration
WDOG Bit Fields
EMDRV EnergyAware drivers
DMADRV DMADRV Direct Memory Access Driver
EZRADIODRV EZR32 EzRadio Peripheral Interface Driver
API_Layer EzRadio API Layer

COMM_Layer EzRadio Communication Layer

HAL_Layer EzRadio HAL Layer

Plugin_System EzRadio Plugin System Layer, see Plugin System Layer for detailed documentation.

Auto_ACK_Plugin Auto acknowledge plugin, see Plugin System Layer for detailed documentation.

CRC_Error_Plugin CRC error plugin, see Plugin System Layer for detailed documentation.

Direct_Receive_Plugin Direct receive plugin, see Plugin System Layer for detailed documentation.

Direct_Transmit_Plugin Direct transmit plugin, see Plugin System Layer for detailed documentation.

PN9_Plugin Pseudo random transmit plugin, see Plugin System Layer for detailed documentation.

Plugin_Manager Plugin manager, see Plugin System Layer for detailed documentation.

Receive_Plugin Receive plugin, see Plugin System Layer for detailed documentation.

Transmit_Plugin Transmit plugin, see Plugin System Layer for detailed documentation.

Unmod_Carrier_Plugin Unmodulated Carrier plugin, see Plugin System Layer for detailed documentation.

GPIOINT GPIOINT General Purpose Input/Output Interrupt dispatcher
NVM NVM Non-volatile Memory Wear-Leveling Driver
NVM3 NVM3 Non-Volatile Memory Management driver
NVM3Hal NVM3 hal module
NVM3Lock NVM3 lock module
RTCDRV Real-time Clock Driver
SLEEP Sleep management driver
SPIDRV SPIDRV Serial Peripheral Interface Driver
TEMPDRV TEMPDRV Temperature Sensor Driver
UARTDRV UARTDRV Universal Asynchronous Receiver/Transmitter Driver
USTIMER USTIMER Microsecond Delay Timer Driver
EMLIB Low-level peripheral library
ACMP Analog comparator (ACMP) Peripheral API
ADC Analog to Digital Converter (ADC) Peripheral API
ASSERT Error checking module
BUS BUS register and RAM bit/field read/write API
CHIP Chip errata workarounds initialization API
CMU Clock management unit (CMU) Peripheral API
COMMON General purpose utilities and cross-compiler support
CORE Core interrupt handling API
CRYOTIMER Ultra Low Energy Timer/Counter (CRYOTIMER) Peripheral API
CRYPTO Cryptography accelerator peripheral API
CSEN Capacitive Sense (CSEN) Peripheral API
DBG Debug (DBG) Peripheral API
EMU Energy Management Unit (EMU) Peripheral API
GPCRC General Purpose Cyclic Redundancy Check (GPCRC) API
GPIO General Purpose Input/Output (GPIO) API
I2C Inter-integrated Circuit (I2C) Peripheral API
IDAC Current Digital-to-Analog Converter (IDAC) Peripheral API
INT Safe nesting of interrupt disable/enable API
LDMA Linked Direct Memory Access (LDMA) Peripheral API
LESENSE Low Energy Sensor (LESENSE) Peripheral API
LETIMER Low Energy Timer (LETIMER) Peripheral API
LEUART Low Energy Universal Asynchronous Receiver/Transmitter (LEUART) Peripheral API
MPU Memory Protection Unit (MPU) Peripheral API
MSC Memory System Controller API
OPAMP Operational Amplifier (OPAMP) peripheral API
PCNT Pulse Counter (PCNT) Peripheral API
PRS Peripheral Reflex System (PRS) Peripheral API
RAMFUNC RAM code support
RMU Reset Management Unit (RMU) Peripheral API
RTCC Real Time Counter (RTCC) Peripheral API
SMU Security Management Unit (SMU) Peripheral API
TIMER Timer/Counter (TIMER) Peripheral API
USART Universal Synchronous/Asynchronous Receiver/Transmitter Peripheral API
VDAC Digital to Analog Voltage Converter (VDAC) Peripheral API
WDOG Watchdog (WDOG) Peripheral API
Kit Drivers Kit support and drivers
Display Display device driver stack library. See Display Device Driver Stack for more information
Textdisplay Line based text output terminal interface on top of the DISPLAY device driver stack. See TextDisplay Library for more information
Platform Middleware Silicon Labs Gecko Platform Middleware for use with EFM32, EZR32 and EFR32 products
Capacitive Sensing Firmware Library Capacitive sensing firmware library for Silicon Labs MCUs
GLIB Graphics Library