Configurable Logic Block User Guide
-----------------------------------

FROG's Configurable Logic Block (CLB) consists of 10 logic elements as shown in :numref:`fig_le_arch` and a 50% depopulated crossbar which tightly interconnects the logic elements.

.. _fig_le_arch:

.. figure:: ./figures/le_arch.png
  :scale: 100%
  :alt: Logic element schematic

  Logic Element

.. _fig_clb_arch:

.. figure:: ./figures/clb_arch.png
  :scale: 60%
  :alt: Configurable Logic Block schematic

  Configurable logic block and its chain connections across FPGA