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-rw-r--r--bsp-howto/clock.rst5
1 files changed, 5 insertions, 0 deletions
diff --git a/bsp-howto/clock.rst b/bsp-howto/clock.rst
index ef8665a..f3d30ce 100644
--- a/bsp-howto/clock.rst
+++ b/bsp-howto/clock.rst
@@ -65,6 +65,11 @@ Clock Tick Only
Initialization
==============
+The clock driver is initialized by a dedicated system initialization handler if
+requested by the application configuration option
+``CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER``. The clock driver does not use the
+legacy IO driver framework.
+
Timecounter Variant
~~~~~~~~~~~~~~~~~~~