:orphan:

.. title:: MCG_FCRDIV

.. option:: CONFIG_MCG_FCRDIV

*Fast internal reference clock divider*

Type: ``int``

Help
====

Selects the amount to divide down the fast internal reference clock. The
resulting frequency must be in the range 31.25 kHz to 4 MHz.

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

\ :option:`BOARD_FRDM_K22F <CONFIG_BOARD_FRDM_K22F>` || \ :option:`BOARD_FRDM_K64F <CONFIG_BOARD_FRDM_K64F>` || \ :option:`BOARD_FRDM_K82F <CONFIG_BOARD_FRDM_K82F>` || \ :option:`BOARD_FRDM_KL25Z <CONFIG_BOARD_FRDM_KL25Z>` || \ :option:`BOARD_FRDM_KW41Z <CONFIG_BOARD_FRDM_KW41Z>` || \ :option:`BOARD_HEXIWEAR_K64 <CONFIG_BOARD_HEXIWEAR_K64>` || \ :option:`BOARD_HEXIWEAR_KW40Z <CONFIG_BOARD_HEXIWEAR_KW40Z>` || \ :option:`BOARD_IP_K66F <CONFIG_BOARD_IP_K66F>` || \ :option:`BOARD_TWR_KV58F220M <CONFIG_BOARD_TWR_KV58F220M>` || \ :option:`BOARD_USB_KW24D512 <CONFIG_BOARD_USB_KW24D512>` || (\ :option:`HAS_MCG <CONFIG_HAS_MCG>` && \ :option:`SOC_FAMILY_KINETIS <CONFIG_SOC_FAMILY_KINETIS>`)

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

Defaults
========

- 0
- 1
- 1
- 0
- 0
- 1
- 0
- 1
- 1
- 2
- 1

Kconfig definitions
===================

.. highlight:: kconfig

At ``boards/arm/frdm_k22f/Kconfig.defconfig:20``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config MCG_FCRDIV
    	int
    	default 0
    	depends on \ :option:`BOARD_FRDM_K22F <CONFIG_BOARD_FRDM_K22F>`

----

At ``boards/arm/frdm_k64f/Kconfig.defconfig:20``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config MCG_FCRDIV
    	int
    	default 1
    	depends on \ :option:`BOARD_FRDM_K64F <CONFIG_BOARD_FRDM_K64F>`

----

At ``boards/arm/frdm_k82f/Kconfig.defconfig:20``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config MCG_FCRDIV
    	int
    	default 1
    	depends on \ :option:`BOARD_FRDM_K82F <CONFIG_BOARD_FRDM_K82F>`

----

At ``boards/arm/frdm_kl25z/Kconfig.defconfig:23``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config MCG_FCRDIV
    	int
    	default 0
    	depends on \ :option:`BOARD_FRDM_KL25Z <CONFIG_BOARD_FRDM_KL25Z>`

----

At ``boards/arm/frdm_kw41z/Kconfig.defconfig:17``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config MCG_FCRDIV
    	int
    	default 0
    	depends on \ :option:`BOARD_FRDM_KW41Z <CONFIG_BOARD_FRDM_KW41Z>`

----

At ``boards/arm/hexiwear_k64/Kconfig.defconfig:20``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config MCG_FCRDIV
    	int
    	default 1
    	depends on \ :option:`BOARD_HEXIWEAR_K64 <CONFIG_BOARD_HEXIWEAR_K64>`

----

At ``boards/arm/hexiwear_kw40z/Kconfig.defconfig:17``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config MCG_FCRDIV
    	int
    	default 0
    	depends on \ :option:`BOARD_HEXIWEAR_KW40Z <CONFIG_BOARD_HEXIWEAR_KW40Z>`

----

At ``boards/arm/ip_k66f/Kconfig.defconfig:20``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config MCG_FCRDIV
    	int
    	default 1
    	depends on \ :option:`BOARD_IP_K66F <CONFIG_BOARD_IP_K66F>`

----

At ``boards/arm/twr_kv58f220m/Kconfig.defconfig:20``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config MCG_FCRDIV
    	int
    	default 1
    	depends on \ :option:`BOARD_TWR_KV58F220M <CONFIG_BOARD_TWR_KV58F220M>`

----

At ``boards/arm/usb_kw24d512/Kconfig.defconfig:24``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18``

Menu path: (Top)

.. parsed-literal::

    config MCG_FCRDIV
    	int
    	default 2
    	depends on \ :option:`BOARD_USB_KW24D512 <CONFIG_BOARD_USB_KW24D512>`

----

At ``soc/arm/nxp_kinetis/Kconfig:86``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:28`` → ``soc/Kconfig:11`` → ``/home/runner/work/bridle/bridle/workspace/build/Kconfig/Kconfig.soc.arch:2``

Menu path: (Top) → Hardware Configuration

.. parsed-literal::

    config MCG_FCRDIV
    	int "Fast internal reference clock divider"
    	range 0 7
    	default 1
    	depends on \ :option:`HAS_MCG <CONFIG_HAS_MCG>` && \ :option:`SOC_FAMILY_KINETIS <CONFIG_SOC_FAMILY_KINETIS>`
    	help
    	  Selects the amount to divide down the fast internal reference clock. The
    	  resulting frequency must be in the range 31.25 kHz to 4 MHz.

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