:orphan:
.. raw:: html
.. dtcompatible:: nordic,nrf-uarte
.. _dtbinding_nordic_nrf_uarte:
nordic,nrf-uarte
################
Vendor: :ref:`Nordic Semiconductor `
Description
***********
These nodes are "uart" bus nodes.
.. code-block:: none
Nordic nRF family UARTE (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
* - ``disable-rx``
- ``boolean``
- .. code-block:: none
Disable UART reception capabilities (only required to disable reception
if CONFIG_PINCTRL is enabled).
* - ``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
* - ``parity``
- ``string``
- .. code-block:: none
Configures the parity of the adapter. Enumeration id 0 for none, 1 for odd
and 2 for even parity. Default to none if not specified.
Legal values: ``'none'``, ``'odd'``, ``'even'``
* - ``pinctrl-0``
- ``phandles``
- .. code-block:: none
Pin configuration/s for the first state. Content is specific to the
selected pin controller driver implementation.
* - ``pinctrl-1``
- ``phandles``
- .. code-block:: none
Pin configuration/s for the second state. See pinctrl-0.
* - ``pinctrl-2``
- ``phandles``
- .. code-block:: none
Pin configuration/s for the third state. See pinctrl-0.
* - ``pinctrl-3``
- ``phandles``
- .. code-block:: none
Pin configuration/s for the fourth state. See pinctrl-0.
* - ``pinctrl-4``
- ``phandles``
- .. code-block:: none
Pin configuration/s for the fifth state. See pinctrl-0.
* - ``pinctrl-names``
- ``string-array``
- .. code-block:: none
Names for the provided states. The number of names needs to match the
number of states.
* - ``memory-regions``
- ``phandle-array``
- .. code-block:: none
List of memory region phandles
* - ``memory-region-names``
- ``string-array``
- .. code-block:: none
A list of names, one for each corresponding phandle in memory-region
.. group-tab:: Deprecated node specific properties
Deprecated 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
IMPORTANT: This option will only be used if the new pin control driver
is not enabled.
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 */
* - ``rx-pin``
- ``int``
- .. code-block:: none
IMPORTANT: This option will only be used if the new pin control driver
is not enabled.
The RX pin to use. The pin numbering scheme is the same as the
tx-pin property's.
* - ``rts-pin``
- ``int``
- .. code-block:: none
IMPORTANT: This option will only be used if the new pin control driver
is not enabled.
The RTS pin to use. The pin numbering scheme is the same as the
tx-pin property's.
* - ``cts-pin``
- ``int``
- .. code-block:: none
IMPORTANT: This option will only be used if the new pin control driver
is not enabled.
The CTS pin to use. The pin numbering scheme is the same as the
tx-pin property's.
* - ``rx-pull-up``
- ``boolean``
- .. code-block:: none
IMPORTANT: This option will only be used if the new pin control driver
is not enabled.
Enable pull-up resistor on the RX pin.
* - ``cts-pull-up``
- ``boolean``
- .. code-block:: none
IMPORTANT: This option will only be used if the new pin control driver
is not enabled.
Enable pull-up resistor on the CTS pin.
.. 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-uarte" 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:`dt-important-props` for more information.
* - ``interrupts``
- ``array``
- .. code-block:: none
interrupts for device
This property is **required**.
See :ref:`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:`dt-important-props` for more information.
* - ``compatible``
- ``string-array``
- .. code-block:: none
compatible strings
This property is **required**.
See :ref:`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
* - ``label``
- ``string``
- .. code-block:: none
Human readable string describing the device (used as device_get_binding() argument)
See :ref:`dt-important-props` for more information.
This property is **deprecated**.
* - ``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
* - ``mboxes``
- ``phandle-array``
- .. code-block:: none
mailbox / IPM channels specifiers
* - ``mbox-names``
- ``string-array``
- .. code-block:: none
Provided names of mailbox / IPM channel specifiers
* - ``wakeup-source``
- ``boolean``
- .. code-block:: none
Property to identify that a device can be used as wake up source.
When this property is provided a specific flag is set into the
device that tells the system that the device is capable of
wake up the system.
Wake up capable devices are disabled (interruptions will not wake up
the system) by default but they can be enabled at runtime if necessary.
* - ``power-domain``
- ``phandle``
- .. code-block:: none
Power domain the device belongs to.
The device will be notified when the power domain it belongs to is either
suspended or resumed.