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.. dtcompatible:: atmel,sam0-uart
.. _dtbinding_atmel_sam0_uart:

atmel,sam0-uart
###############

Vendor: :ref:`Atmel Corporation <dt_vendor_atmel>`

Description
***********

These nodes are "uart" bus nodes.

.. code-block:: none

   Atmel SAM0 SERCOM UART driver

Properties
**********

.. tabs::

   .. group-tab:: Node specific properties

      Properties not inherited from the base binding file.

      .. list-table::
         :widths: 1 1 4
         :header-rows: 1

         * - Name
           - Type
           - Details

         * - ``rxpo``
           - ``int``
           - .. code-block:: none

                Receive Data Pinout


             This property is **required**.

         * - ``txpo``
           - ``int``
           - .. code-block:: none

                Transmit Data Pinout


             This property is **required**.

         * - ``collision-detection``
           - ``boolean``
           - .. code-block:: none

                Enable collision detection for half-duplex mode.


         * - ``clock-frequency``
           - ``int``
           - .. code-block:: none

                Clock frequency information for UART operation


         * - ``current-speed``
           - ``int``
           - .. code-block:: none

                Initial baud rate setting for UART


         * - ``hw-flow-control``
           - ``boolean``
           - .. code-block:: none

                Set to enable RTS/CTS flow control at boot time




   .. group-tab:: Deprecated node specific properties

      Deprecated properties not inherited from the base binding file.

      (None)

   .. group-tab:: Base properties

      Properties inherited from the base binding file, which defines
      common properties that may be set on many nodes. Not all of these
      may apply to the "atmel,sam0-uart" compatible.

      .. list-table::
         :widths: 1 1 4
         :header-rows: 1

         * - Name
           - Type
           - Details

         * - ``reg``
           - ``array``
           - .. code-block:: none

                register space


             This property is **required**.

             See :ref:`zephyr:dt-important-props` for more information.

         * - ``interrupts``
           - ``array``
           - .. code-block:: none

                interrupts for device


             This property is **required**.

             See :ref:`zephyr:dt-important-props` for more information.

         * - ``clocks``
           - ``phandle-array``
           - .. code-block:: none

                Clock gate information


             This property is **required**.

         * - ``clock-names``
           - ``string-array``
           - .. code-block:: none

                name of each clock


             This property is **required**.

         * - ``dmas``
           - ``phandle-array``
           - .. code-block:: none

                Optional TX & RX dma specifiers.  Each specifier will have a phandle
                reference to the dmac controller, the channel number, and peripheral
                trigger source.

                For example dmas for TX, RX on SERCOM3
                   dmas = <&dmac 0 0xb>, <&dmac 0 0xa>;



         * - ``dma-names``
           - ``string-array``
           - .. code-block:: none

                Required if the dmas property exists.  This should be "tx" and "rx"
                to match the dmas property.

                For example
                   dma-names = "tx", "rx";



         * - ``label``
           - ``string``
           - .. code-block:: none

                Human readable string describing the device (used as device_get_binding() argument)


             This property is **required**.

             See :ref:`zephyr:dt-important-props` for more information.

         * - ``status``
           - ``string``
           - .. code-block:: none

                indicates the operational status of a device


             Legal values: ``'ok'``, ``'okay'``, ``'disabled'``, ``'reserved'``, ``'fail'``, ``'fail-sss'``

             See :ref:`zephyr:dt-important-props` for more information.

         * - ``compatible``
           - ``string-array``
           - .. code-block:: none

                compatible strings


             This property is **required**.

             See :ref:`zephyr:dt-important-props` for more information.

         * - ``reg-names``
           - ``string-array``
           - .. code-block:: none

                name of each register space


         * - ``interrupts-extended``
           - ``compound``
           - .. code-block:: none

                extended interrupt specifier for device


         * - ``interrupt-names``
           - ``string-array``
           - .. code-block:: none

                name of each interrupt


         * - ``interrupt-parent``
           - ``phandle``
           - .. code-block:: none

                phandle to interrupt controller node


         * - ``#address-cells``
           - ``int``
           - .. code-block:: none

                number of address cells in reg property


         * - ``#size-cells``
           - ``int``
           - .. code-block:: none

                number of size cells in reg property


         * - ``io-channels``
           - ``phandle-array``
           - .. code-block:: none

                IO channels specifiers


         * - ``io-channel-names``
           - ``string-array``
           - .. code-block:: none

                Provided names of IO channel specifiers