|  | ================= | 
|  | package_pins file | 
|  | ================= | 
|  |  | 
|  | The ``package_pins.csv`` is a simple file that describes the pins of | 
|  | the particular FPGA chip package. | 
|  |  | 
|  | File format | 
|  | ----------- | 
|  |  | 
|  | Every row in the file represents a single pin. Each of the pins | 
|  | is characterized by: | 
|  |  | 
|  | - ``pin`` - The package pin name | 
|  | - ``bank`` - The ID of *IO BANK* to which the pin is connected. It should match | 
|  | with the data from the :doc:`part file<./part>` | 
|  | - ``site`` - The :term:`site <Site>` to which the pin belongs | 
|  | - ``tile`` - The :term:`tile <Tile>` to which the pin belongs | 
|  | - ``pin_function`` - The function of the pin | 
|  |  | 
|  | Example | 
|  | ------- | 
|  |  | 
|  | .. code-block:: | 
|  |  | 
|  | A1,35,IOB_X1Y97,RIOB33_X43Y97,IO_L1N_T0_AD4N_35 | 
|  |  | 
|  | This line means that the pin ``A1`` which belongs to *IO BANK* ``35``, | 
|  | of ``IOB_X1Y97`` :term:`site <Site>` in ``RIOB33_X43Y97`` :term:`tile <Tile>` | 
|  | has ``IO_L1N_T0_AD4N_35`` function. |