.. highlight:: c

.. _pragma_interface_memory_variable:

Configure Global Variable as Scalar Memory Interface
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**Syntax**


``#pragma LEGUP interface variable(<var_name>) type(scalar_memory)``

**Description**


This pragma specifies the scalar memory interface for a shared global variable.
The scalar memory interface is used by LegUp module to access external memory
that has only one element. More details in :ref:`rtl_interface` section.

**Parameters**

+--------------+-------------------+----------+---------+----------------+
|  Parameter   |       Type        | Optional | Default |  Description   |
+==============+===================+==========+=========+================+
| ``variable`` | String            | No       |         | Variable name  |
+--------------+-------------------+----------+---------+----------------+
| ``type``     | ``scalar_memory`` | No       |         | Interface type |
+--------------+-------------------+----------+---------+----------------+

**Position**

Before the global variable declaration.

**Examples**


.. code-block:: c

  #pragma LEGUP interface variable(b) type(scalar_memory)
  int b[SIZE];

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