:orphan:

.. title:: CONFIG_XTENSA_TIMER_ID

.. kconfig:: CONFIG_XTENSA_TIMER_ID

CONFIG_XTENSA_TIMER_ID
######################

*System timer CCOMPAREn register index*

Type: ``int``

Help
====

.. code-block:: none

    Index of the CCOMPARE register (and associated interrupt)
    used for the system timer.  Xtensa CPUs have hard-configured
    interrupt priorities associated with each timer, and some of
    them can be unmaskable (and thus not usable by OS code that
    need synchronization, like the timer subsystem!).  Choose
    carefully.  Generally you want the timer with the highest
    priority maskable interrupt.

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

\ :kconfig:`XTENSA_TIMER <CONFIG_XTENSA_TIMER>`

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

Default
=======

- 1

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



At ``<Zephyr Driver>/timer/Kconfig:260``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:42`` → ``<Zephyr Driver>/Kconfig:30``

Menu path: (Top) → Device Drivers → Timer Drivers

.. code-block:: kconfig

    config XTENSA_TIMER_ID
    	int "System timer CCOMPAREn register index"
    	default 1
    	depends on XTENSA_TIMER
    	help
    	  Index of the CCOMPARE register (and associated interrupt)
    	  used for the system timer.  Xtensa CPUs have hard-configured
    	  interrupt priorities associated with each timer, and some of
    	  them can be unmaskable (and thus not usable by OS code that
    	  need synchronization, like the timer subsystem!).  Choose
    	  carefully.  Generally you want the timer with the highest
    	  priority maskable interrupt.

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