13. Its purpose is to implement combinational and sequential logic functions.
14. Logic blocks can be implemented by:-Transistor pairs Multiplexers Look up tables( LUT) Wide fan-in AND-OR structure.
15.
16. There are various type of connection lines in FPGA:long lines are used to connect distant logic blocks short lines connect neighboring blocks with each other dedicated clock trees are used to distribute synchronization signals dedicated set/reset lines are used to reset all flip-flops in the FPGA