### - u -

- u_base : __hal_gdc_layer_t
- u_stride : __hal_gdc_layer_t
- uart_abort_cplt_callback : _hal_uart_callback
- uart_abort_rx_cplt_callback : _hal_uart_callback
- uart_abort_tx_cplt_callback : _hal_uart_callback
- uart_dev : app_uart_params_t
- uart_dma_state : uart_env_t
- uart_error_callback : _hal_uart_callback
- uart_msp_deinit : _hal_uart_callback
- uart_msp_init : _hal_uart_callback
- uart_rx_cplt_callback : _hal_uart_callback
- uart_state : uart_env_t
- uart_tx_cplt_callback : _hal_uart_callback
- ues_type : pkc_env_t
- unit : prf_char_pres_fmt_t
- unread_alert : ans_c_evt_t
- unread_num : ans_c_unread_alert_t , ans_unread_alert_t
- update_result : rtus_update_state_t
- usb_ahb_xfer_err_callback : _hal_usb_callback
- usb_attach_callback : _hal_usb_callback
- usb_bit_stuff_err_callback : _hal_usb_callback
- usb_byte_err_callback : _hal_usb_callback
- usb_crc16_err_callback : _hal_usb_callback
- usb_detach_callback : _hal_usb_callback
- usb_ep0_out_ready_callback : _hal_usb_callback
- usb_ep0_tx_done_callback : _hal_usb_callback
- usb_ep1_out_ready_callback : _hal_usb_callback
- usb_ep2_tx_done_callback : _hal_usb_callback
- usb_ep3_ahb_xfer_done_callback : _hal_usb_callback
- usb_ep3_tx_done_callback : _hal_usb_callback
- usb_ep4_ahb_xfer_done_callback : _hal_usb_callback
- usb_ep4_tx_done_callback : _hal_usb_callback
- usb_ep5_ahb_xfer_done_callback : _hal_usb_callback
- usb_ep5_out_ready_callback : _hal_usb_callback
- usb_ep5_timer_out_err_callback : _hal_usb_callback
- usb_host_reset_callback : _hal_usb_callback
- usb_into_config_callback : _hal_usb_callback
- usb_msp_deinit : _hal_usb_callback
- usb_msp_init : _hal_usb_callback
- usb_nse_err_callback : _hal_usb_callback
- usb_pid_cks_err_callback : _hal_usb_callback
- usb_pid_crc_err_callback : _hal_usb_callback
- usb_rg_ldo33_vesl : _usb_trim_t
- usb_rg_xcvr_rtrimn : _usb_trim_t
- usb_rg_xcvr_rtrimp : _usb_trim_t
- usb_rh_ldo33_bias : _usb_trim_t
- usb_seq_err_callback : _hal_usb_callback
- usb_sof_callback : _hal_usb_callback
- usb_suspend_callback : _hal_usb_callback
- usb_sync_err_callback : _hal_usb_callback
- usb_time_out_callback : _hal_usb_callback
- usb_trim : _efuse_trim0_t
- usb_upid_err_callback : _hal_usb_callback
- use_mode : aes_env_t , app_aes_params_t , app_iso7816_params_t , iso7816_env_t
- use_type : app_hmac_params_t , app_pkc_params_t , app_rng_params_t , hmac_env_t , rng_env_t
- use_whitelist : ble_gap_scan_param_t
- user_id : bps_meas_t
- user_id_present : bps_meas_t
- utc : _calendar_handle
- uuid : ble_gattc_browse_attr_char_t , ble_gattc_browse_attr_t , ble_gattc_browse_inc_srvc_t , ble_gattc_evt_browse_srvc_t , ble_gattc_evt_enh_browse_srvc_t , ble_gatts_attm_desc_128_t , ble_gatts_attm_desc_t , ble_gatts_create_db_t , ble_uuid_t
- uuid_len : ble_gattc_browse_attr_char_t , ble_gattc_browse_attr_t , ble_gattc_browse_inc_srvc_t , ble_gattc_cache_char_t , ble_gattc_cache_desc_t , ble_gattc_cache_include_t , ble_gattc_cache_service_t , ble_gattc_char_t , ble_gattc_desc_t , ble_gattc_evt_browse_srvc_t , ble_gattc_evt_enh_browse_srvc_t , ble_gattc_include_t , ble_gattc_service_t , ble_uuid_t