Custom IO
=========

28 IO can be customized as LVDS or CMOS level. HSEC8_ASIC_BUFFER IO is configured on MATIS board
(see schematics for more details)

+--------+---------------+----------------+--------------+--------------------+
| POWER  |  | LVDS       | | LVDS  Buffer | Buffer CMOS  |                    |
|        |  | (max9157)  | | AVC4t245     |              |                    |
+--------+-------+-------+------+---------+------+-------+--------------------+
| PGOOD  |  DE   |  RE*  |  OE* |  DIR    |  OE* |  DIR  | Comment            |
+--------+-------+-------+------+---------+------+-------+--------------------+
|0       |0      |1      |1     |         |1     |       |Tri-state           |
+--------+-------+-------+------+---------+------+-------+--------------------+
|1       |0      |0      |0     |0        |1     |       |LVDS: ASIC to FPGA  |
+--------+-------+-------+------+---------+------+-------+--------------------+
|1       |1      |1      |0     |1        |1     |       |LVDS: FPGA to ASIC  |
+--------+-------+-------+------+---------+------+-------+--------------------+
|1       |0      |1      |1     |         |0     |0      |CMOS: ASIC to FPGA  |
+--------+-------+-------+------+---------+------+-------+--------------------+
|1       |0      |1      |1     |         |0     |1      |CMOS: FPGA to ASIC  |
+--------+-------+-------+------+---------+------+-------+--------------------+

The buffers’ outputs is directly connected to the FPGA with CMOS 1.8 Volt.

.. list-table::
   :widths: 25 25 25 25
   :align: center
   :header-rows: 1

   * - Signal name
     - FPGA bank
     - FPGA pin
     - IO level

   * - FMC_ASIC_BUFFER_1
     - 35
     - A4
     - CMOS18

   * - FMC_ASIC_BUFFER_2
     - 34
     - T2
     - CMOS18

   * - FMC_ASIC_BUFFER_3
     - 34
     - T1
     - CMOS18

   * - FMC_ASIC_BUFFER_4
     - 35
     - N4
     - CMOS18

   * - FMC_ASIC_BUFFER_5
     - 34
     - U2
     - CMOS18

   * - FMC_ASIC_BUFFER_6
     - 34
     - U1
     - CMOS18

   * - FMC_ASIC_BUFFER_7
     - 34
     - R3
     - CMOS18

   * - FMC_ASIC_BUFFER_8
     - R2
     - U1
     - CMOS18

   * - FMC_ASIC_BUFFER_9
     - 34
     - N3
     - CMOS18

   * - FMC_ASIC_BUFFER_10
     - 34
     - N1
     - CMOS18

   * - FMC_ASIC_BUFFER_11
     - 34
     - P1
     - CMOS18

   * - FMC_ASIC_BUFFER_12
     - 34
     - J6
     - CMOS18

   * - FMC_ASIC_BUFFER_13
     - 34
     - N6
     - CMOS18

   * - FMC_ASIC_BUFFER_14
     - 35
     - N5
     - CMOS18