:orphan:

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.. dtcompatible:: nordic,nrf-uart
.. _dtbinding_nordic_nrf_uart:

nordic,nrf-uart
###############

Vendor: :ref:`Nordic Semiconductor <dt_vendor_nordic>`

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

These nodes are "uart" bus nodes.

.. code-block:: none

   Nordic nRF family UART.

   This is the binding for the peripheral without EasyDMA support.
   See the "nordic,nrf-uarte" binding for UARTE, i.e. UART with
   EasyDMA.

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

         * - ``tx-pin``
           - ``int``
           - .. code-block:: none

                The TX pin to use.

                For pins P0.0 through P0.31, use the pin number. For example,
                to use P0.16 for TX, set:

                    tx-pin = <16>;

                For pins P1.0 through P1.31, add 32 to the pin number. For
                example, to use P1.2 for TX, set:

                    tx-pin = <34>;  /* 32 + 2 */



             This property is **required**.

         * - ``rx-pin``
           - ``int``
           - .. code-block:: none

                The RX pin to use. The pin numbering scheme is the same as the
                tx-pin property's.



         * - ``rts-pin``
           - ``int``
           - .. code-block:: none

                The RTS pin to use. The pin numbering scheme is the same as the
                tx-pin property's.



         * - ``cts-pin``
           - ``int``
           - .. code-block:: none

                The CTS pin to use. The pin numbering scheme is the same as the
                tx-pin property's.



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

                Initial baud rate setting for UART. Only a fixed set of baud
                rates are selectable on these devices.



             Legal values: ``1200``, ``2400``, ``4800``, ``9600``, ``14400``, ``19200``, ``28800``, ``31250``, ``38400``, ``56000``, ``57600``, ``76800``, ``115200``, ``230400``, ``250000``, ``460800``, ``921600``, ``1000000``

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

                Clock frequency information for UART operation


         * - ``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 "nordic,nrf-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.

         * - ``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


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

                Clock gate information


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

                name of each clock


         * - ``#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


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

                DMA channels specifiers


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

                Provided names of DMA channel specifiers


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

                IO channels specifiers


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

                Provided names of IO channel specifiers