.. _doublediff:

doublediff
==========

Description
'''''''''''

|  Differentiate when the gate is HIGH

Pinout
''''''

.. _fig:doublediff_block:
.. figure:: doublediff_block.png
    :alt: Schematic symbol

Parameters
''''''''''

.. list-table:: doublediff_param_table
   :header-rows: 1

   * - Name
     - Min
     - Max
     - Default
     - Description
   * - dw
     - ?
     - ?
     - 28
     - 
   * - dsr_len
     - ?
     - ?
     - 4
     - 

Ports
'''''

.. list-table:: doublediff_port_table
   :header-rows: 1

   * - Signal
     - Direction
     - Description
   * - clk
     - Input
     - 
   * - d_in[dw-1:0]
     - Input
     - Input data
   * - g_in
     - Input
     - A gate when set to high differentiates input data
   * - d_out[dw-1:0]
     - Output
     - 
   * - g_out
     - Output
     - 

Implementation and use
''''''''''''''''''''''

The `portable`_ `Verilog`_
implementation can be found in :ref:`doublediff_source`

.. _`portable`: https://en.wikipedia.org/wiki/Software_portability
.. _`Verilog`: https://en.wikipedia.org/wiki/Verilog