Here is a list of all documented variables with links to the struct/union documentation for each field:

- f -

f0_f1 : Context_Control_fp
f10_f11 : Context_Control_fp
f12_f13 : Context_Control_fp
f14_f15 : Context_Control_fp
f16_f17 : Context_Control_fp
f18_f19 : Context_Control_fp
f20_f21 : Context_Control_fp
f22_f23 : Context_Control_fp
f24_f25 : Context_Control_fp
f26_f27 : Context_Control_fp
f28_f29 : Context_Control_fp
f2_f3 : Context_Control_fp
f30_f31 : Context_Control_fp
f4_f5 : Context_Control_fp
f6_f7 : Context_Control_fp
f8_f9 : Context_Control_fp
f_bavail : statvfs
f_bfree : statvfs
f_blocks : statvfs
f_bsize : statvfs
f_favail : statvfs
f_ffree : statvfs
f_files : statvfs
f_flag : statvfs
f_frsize : statvfs
f_fsid : statvfs
f_namemax : statvfs
FADID : CAAM_Type
FADID_DC01 : CAAM_Type
FADID_JR : CAAM_Type::[struct].JOBRING
FADID_RTIC : CAAM_Type
FADR : CAAM_Type, MCM_Type
FADR_DC01 : CAAM_Type
FADR_JR : CAAM_Type::[struct].JOBRING
FADR_RTIC : CAAM_Type
fail_code : tms570_selftest_par_desc
failed : rtems_fdisk_segment_ctl, rtems_flashdisk
failed_allocs : Heap_Statistics
failed_expression : rtems_assert_context
FAR : CAAM_Type, RAMECC_MonitorTypeDef
FAR_DC01 : CAAM_Type
FAR_JR : CAAM_Type::[struct].JOBRING
FAR_RTIC : CAAM_Type
FastMode : DFSDM_Filter_RegularParamTypeDef
fat_num : msdos_format_request_param_t
fatal_code : BspReqInterruptHandlerDispatchUnchecked_Context
fatal_counter : BspReqInterruptHandlerDispatchUnchecked_Context
fatal_extension_calls : RtemsTaskReqExit_Context
fatal_source : BspReqInterruptHandlerDispatchUnchecked_Context
FATR : MCM_Type
faultClearingMode : _pwm_fault_param
faultFilterCount : _pwm_fault_input_filter_param, _qtmr_config
faultFilterPeriod : _pwm_fault_input_filter_param, _qtmr_config
faultGlitchStretch : _pwm_fault_input_filter_param
faultLevel : _pwm_fault_param
faultState : _pwm_signal_param
faulty : _smartcard_card_params
FBUF_PARA : CSI_Type
fCallback : _XdmadChannel
FCR : DMA_Stream_TypeDef, GFXMMU_TypeDef, LPSPI_Type, OCTOSPI_TypeDef, QUADSPI_TypeDef
FCTRL : ADC_Type, PWM_Type
FCTRL2 : PWM_Type
fd : rtems_rtl_obj_cache, rtems_rtl_obj_cpmp, rtems_stdio_redirect, sc16is752_i2c_context, sc16is752_spi_context
fd_dup : rtems_stdio_redirect
FDCBT : CAN_Type
FDCRC : CAN_Type
FDCTRL : CAN_Type
FDR : MCM_Type
FDRH : RAMECC_MonitorTypeDef
FDRL : RAMECC_MonitorTypeDef
Features : __attribute__, XNandPsu
FECR : RAMECC_MonitorTypeDef
feed : lpc176x_pll
feedbackPoint : _dcdc_internal_regulator_config
fetched_count : rtems_record_fetch_control
fetched_items : rtems_record_fetch_control
FFCR : TPI_Type
FFILT : PWM_Type
FFSR : TPI_Type
FGCLUT : DMA2D_TypeDef
FGCMAR : DMA2D_TypeDef
FGCOLR : DMA2D_TypeDef
FGMAR : DMA2D_TypeDef
FGOR : DMA2D_TypeDef
FGPFCCR : DMA2D_TypeDef
Fi : _smartcard_card_params
FIFO : LPUART_Type, SDMMC_TypeDef
Fifo : _Thread_queue_Heads::[union].Heads
fifo : apbuart
FIFO0 : TPI_Type
FIFO1 : TPI_Type
FIFO_CTRL : PDM_Type
FIFO_STAT : PDM_Type
FIFOMode : DMA_InitTypeDef
FifoMode : __SMARTCARD_HandleTypeDef, __UART_HandleTypeDef, __USART_HandleTypeDef
fifoOffset : _sai_sdma_handle
fifoSize : _lpspi_master_edma_handle, _lpspi_master_handle, _lpspi_slave_edma_handle, _lpspi_slave_handle
fifoSizeInfo : _dac12_hardware_info
FIFOThreshold : DMA_InitTypeDef, SAI_InitTypeDef
FifoThreshold : SPI_InitTypeDef
fifoThreshold : _asrc_in_edma_handle, _asrc_in_handle, _asrc_out_edma_handle, _asrc_out_handle
FIFOWatermark : lpadc_config_t
fifoWatermark : _pdm_config, _pwm_input_capture_param
fifoWatermarkLevel : dac12_config_t
fifoWidth : _pdm_sdma_handle
fifoWorkMode : dac12_config_t
fildes : rtems_aio_request_chain
file : rtems_assert_context, rtems_rtl_rap
file_shares : _rtems_rfs_file_system
file_size : rtems_rtl_obj_cache
FileFormat : HAL_MMC_CardCSDTypeDef, HAL_SD_CardCSDTypeDef
FileFormatGroup : HAL_MMC_CardCSDTypeDef, HAL_SD_CardCSDTypeDef
files_per_root_dir : msdos_format_request_param_t
FILT : ENC_Type, TMR_Type::[struct].CHANNEL
Filter : RTC_TamperTypeDef
filterCount : _acmp_filter_config, _cmp_filter_config, _enc_config
filterDozeEnable : _lpi2c_slave_config
filterEnable : _lpi2c_slave_config
FilterOrder : DFSDM_Channel_AwdTypeDef
FilterParam : DFSDM_Filter_InitTypeDef
filterPeriod : _acmp_filter_config, _cmp_filter_config
filterSamplePeriod : _enc_config
fini : rtems_rtl_rap, rtems_test_parallel_job
FIR : DSI_TypeDef
first : BspReqInterruptHandlerDispatchUnchecked_Context, rtems_rtl_dep_data, RtemsIntrReqEntryRemove_Context, Thread_queue_Operations, Watchdog_Header
first_again : BspReqInterruptHandlerDispatchUnchecked_Context
first_open : rtems_termios_device_handler, sc16is752_context
first_timeout : tftp_net_config
FirstBit : I2S_InitTypeDef, SAI_InitTypeDef, SPI_InitTypeDef
FirstBitOffset : SAI_SlotInitTypeDef
FirstLinkedListNodeAddress : __MDMA_HandleTypeDef
fixedChannelNumber : _acmp_round_robin_config
fixedPort : _acmp_round_robin_config
FLAGS : CDOG_Type
Flags : RTEMS_PACKED, XQspiPsu_Msg
flags : _dsi_transfer, _edma_handle, _flexio_i2c_master_transfer, _flexio_spi_transfer, _lpi2c_master_transfer, _rtems_rfs_file_handle, _rtems_rfs_file_system, _rtems_rfs_inode, _usdhc_capability, _usdhc_command, bfin_uart_channel_t, CReqClockNanosleep_Context, i2c_msg, mmap_mappings_s, rtems_bdbuf_cache, rtems_bdpart_partition, rtems_fdisk_page_desc, rtems_filesystem_eval_path_context_t, rtems_flashdisk, rtems_flashdisk_config, rtems_nvdisk, rtems_nvdisk_config, rtems_nvdisk_device_desc, rtems_rtl_archive, rtems_rtl_loader_format, rtems_rtl_obj, rtems_rtl_obj_sect, rtems_rtl_obj_sect_finder, rtems_rtl_rap_sectdef, rtems_rtl_tramp_reloc, rtems_rtl_unresolv_reloc, rtems_rtl_unresolv_symbol, Thread_Wait_information
flash_block_size : rtems_jffs2_info
flash_blocks : rtems_jffs2_info
flash_connection : _serial_nor_config_option::[struct].option1.B
flash_control : rtems_jffs2_mount_data
flash_ops : rtems_fdisk_device_desc
flash_size : rtems_jffs2_flash_control, rtems_jffs2_info
flash_type : rtems_flashdev
flashcfg : lpc176x_scb
FlashSize : MT25TL01G_Info, MT25TL01G_Info_t
flashSize : _flexspi_device_config
FlashStateCtx : _flexspi_nor_config
fld : ALT_CLK_GROUP_RAW_CFG_s::ALT_CLK_GROUP_RAW_CFG_u::[union].mainpllgrp, ALT_CLK_GROUP_RAW_CFG_s::ALT_CLK_GROUP_RAW_CFG_u::[union].perpllgrp, ALT_CLK_GROUP_RAW_CFG_s::ALT_CLK_GROUP_RAW_CFG_u::[union].sdrpllgrp
flexioBase : _flexio_camera_type, _flexio_i2c_type, _flexio_i2s_type, _flexio_mculcd_type, _flexio_spi_type, _flexio_uart_type
FLEXRAM_CTRL : FLEXRAM_Type
flexSpiNorDriver : bootloader_api_entry_t
flexspiRootClk : _flexspi_device_config
flow : console_device, rtems_termios_tty
FLOW_CONTROL : TSC_Type
FLSHCR0 : FLEXSPI_Type
FLSHCR1 : FLEXSPI_Type
FLSHCR2 : FLEXSPI_Type
FLSHCR4 : FLEXSPI_Type
FLTAWCFR : DFSDM_Filter_TypeDef
FLTAWHTR : DFSDM_Filter_TypeDef
FLTAWLTR : DFSDM_Filter_TypeDef
FLTAWSR : DFSDM_Filter_TypeDef
FLTCNVTIMR : DFSDM_Filter_TypeDef
FLTCR : TAMP_TypeDef
FLTCR1 : DFSDM_Filter_TypeDef
FLTCR2 : DFSDM_Filter_TypeDef
FLTEXMAX : DFSDM_Filter_TypeDef
FLTEXMIN : DFSDM_Filter_TypeDef
FLTFCR : DFSDM_Filter_TypeDef
FLTICR : DFSDM_Filter_TypeDef
FLTINR1 : HRTIM_Common_TypeDef
FLTINR2 : HRTIM_Common_TypeDef
FLTISR : DFSDM_Filter_TypeDef
FLTJCHGR : DFSDM_Filter_TypeDef
FLTJDATAR : DFSDM_Filter_TypeDef
FLTRDATAR : DFSDM_Filter_TypeDef
FLTxR : HRTIM_Timerx_TypeDef
flush : griommu, TQContext
flush_count : TQContext
fMax : _smartcard_card_params
FmcClockSelection : RCC_PeriphCLKInitTypeDef
fname : rtems_rtl_obj
fnc_data : tms570_selftest_par_desc
FOLDCNT : DWT_Type
FORCE_EVENT : USDHC_Type
forceTrigger : _pwm_config
format : _flexcan_frame::[struct].__unnamed0__, _flexcan_rx_mb_config, _pdm_handle, rtems_rtl_obj
fp_context : _Thread_Control, Thread_Start_information
fp_obj : ScoreThreadValThread_Context
FPCA : CONTROL_Type::[struct].b
FPCAR : FPU_Type
FPCCR : FPU_Type
FPDSCR : FPU_Type
FPR : CMP_Type
FRACN : LL_UTILS_PLLInitTypeDef
FRACVAL1 : PWM_Type::[struct].SM
FRACVAL2 : PWM_Type::[struct].SM
FRACVAL3 : PWM_Type::[struct].SM
FRACVAL4 : PWM_Type::[struct].SM
FRACVAL5 : PWM_Type::[struct].SM
frame : _flexcan_fifo_transfer, _flexcan_mb_transfer
frameBufferQueue : _csi_handle
FrameInit : __SAI_HandleTypeDef
FrameLength : SAI_FrameInitTypeDef
frameNum : _flexcan_edma_handle, _flexcan_fifo_transfer
frameSync : _sai_transceiver
frameSyncEarly : _sai_frame_sync
frameSyncPolarity : _sai_frame_sync
frameSyncWidth : _sai_frame_sync
frameTime : _pdm_hwvad_config
FRCR : SAI_Block_TypeDef
FRCTRL : PWM_Type::[struct].SM
Free : Freechain_Control, Thread_Information::[union].Thread_queue_heads
free : flash_sim_flashdev_attributes, Memory_Area
free_at_delete_request : ramdisk
free_blocks : Heap_Statistics, rtems_jffs2_info
Free_chain : _Thread_queue_Heads
free_chunk_chain : rtems_rbheap_control
free_message_buffers : CORE_message_queue_Control
Free_node : _Thread_queue_Heads
free_size : Heap_Statistics, rtems_jffs2_info
frees : Heap_Statistics
FreqErrorCapture : RCC_CRSSynchroInfoTypeDef
FreqErrorDirection : RCC_CRSSynchroInfoTypeDef
freqReduction : _pmu_well_bias_option::[struct].wellBiasStruct
frequency : _tempmon_config, _tmpsns_config
FREQUENCY_CURRENT : CCM_OBS_Type::[struct].OBSERVE
FREQUENCY_MAX : CCM_OBS_Type::[struct].OBSERVE
FREQUENCY_MIN : CCM_OBS_Type::[struct].OBSERVE
FRINDEX : USB_Type
from_adr : drvmgr_map_entry
FRQCNT : TRNG_Type::[union].__unnamed2__
FRQMAX : TRNG_Type::[union].__unnamed2__
FRQMIN : TRNG_Type
fRxCb : _GmacQueueDriver
fs : _rtems_rfs_file_shared
fs_bkp : RTEMS_PACKED
fs_scl_hcnt : ALT_I2C_MASTER_CONFIG_s
fs_scl_lcnt : ALT_I2C_MASTER_CONFIG_s
fs_spklen : ALT_I2C_MASTER_CONFIG_s
FSCR : TPI_Type
FSDefinition : SAI_FrameInitTypeDef
fsize : rtems_rtl_obj
FSOffset : SAI_FrameInitTypeDef
fsPinIndex : _flexio_i2s_type
fsPinPolarity : _flexio_i2s_config
FSPolarity : SAI_FrameInitTypeDef
FSR : LPSPI_Type
fsr : Context_Control_fp
fsTimerIndex : _flexio_i2s_type
FSTS : PWM_Type
ftbnd : mmctrl
ftda : mmctrl
ftdc : mmctrl
ftdd : mmctrl
ftmfunc : gr740_iopll
FTRL : ENET_Type
FTSR1 : EXTI_TypeDef
FTSR2 : EXTI_TypeDef
FTSR3 : EXTI_TypeDef
FTST : PWM_Type
fTxCbList : _GmacQueueDriver
fTxPtpEvtCb : _GmacQueueDriver
full : rtems_stdio_redirect
fullMessageSize : _dcp_hash_ctx_internal
funcs : drvmgr_bus, drvmgr_drv
funct_vector : lpc176x_timer_functions
function : lpc176x_registered_interrupt_function, rtems_assert_context
FUNCTION0 : DWT_Type
FUNCTION1 : DWT_Type
FUNCTION2 : DWT_Type
FUNCTION3 : DWT_Type
functionality : i2c_bus
FUSE : OCOTP_Type::[struct].FUSEN
futex : NewlibReqFutexWait_Context, NewlibReqFutexWake_Context
fWakupCb : _GmacQueueDriver