.. highlight:: c

.. _pragma_interface_memory_variable:

Configure Global as Memory Interface
------------------------------------

**Syntax**


``#pragma LEGUP interface variable(<var_name>) type(memory) depth(<int>)``

**Description**


This pragma specifies the memory interface type for a shared array/struct global variable.
The array size can be specified or overridden (over the declared size in C++) by specifying the ``depth`` option.
More details in :ref:`rtl_interface` section.

**Parameters**


+--------------+------------+----------+---------+--------------------------+
|  Parameter   |    Type    | Optional | Default |       Description        |
+==============+============+==========+=========+==========================+
| ``variable`` | String     | No       |         | Variable name            |
+--------------+------------+----------+---------+--------------------------+
| ``type``     | ``memory`` | No       |         | Interface type           |
+--------------+------------+----------+---------+--------------------------+
| ``depth``    | Integer    | Yes      |         | Overrides the array size |
+--------------+------------+----------+---------+--------------------------+

**Position**

Before the global variable declaration.

**Examples**


.. code-block:: c

  #pragma LEGUP interface variable(b) type(memory) depth(100)
  int *b;

  int fun(int a[]) {
  #pragma LEGUP interface argument(a) type(memory)
    ...
  }

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