:orphan:

.. title:: CMU_HFCLK_HFXO

.. option:: CONFIG_CMU_HFCLK_HFXO

*External high frequency crystal oscillator*

Type: ``bool``

Help
====

.. code-block:: none

    Set this option to use the external high frequency crystal oscillator
    as high frequency clock.

Direct dependencies
===================

\ :ref:`<choice: High Frequency Clock Selection> <choice_103>`

*(Includes any dependencies from ifs and menus.)*

Kconfig definition
==================



At ``<Zephyr SoC>/arm/silabs_exx32/Kconfig:148``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:28`` → ``<Zephyr SoC>/Kconfig:11`` → ``<BuildDir>/kconfig/Kconfig.soc.arch:2``

Menu path: (Top) → Hardware Configuration → High Frequency Clock Selection

.. code-block:: kconfig

    config CMU_HFCLK_HFXO
    	bool "External high frequency crystal oscillator"
    	depends on <choice>
    	help
    	  Set this option to use the external high frequency crystal oscillator
    	  as high frequency clock.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*