1. FPGA place & route challenges
2. Xilinx "UltraScale Architecture" http://www.xilinx.com/products/technology/ultrascale.html Xilinx "UltraScale Architecture" http://www.xilinx.com/products/technology/ultrascale.html
3. Xilinx "Virtex UltraScale FPGAs" http://www.xilinx.com/publications/prod_mktg/ultrascalevirtex-product-table Xilinx "Virtex UltraScale FPGAs" http://www.xilinx.com/publications/prod_mktg/ultrascalevirtex-product-table
4. Xilinx "UltraScale Architecture Configurable Logic Block User Guide" http://www.xilinx.com/support/documentation/user_guides/ug574-ultrascale-clb.pdf Xilinx "UltraScale Architecture Configurable Logic Block User Guide" http://www.xilinx.com/support/documentation/user_guides/ug574-ultrascale-clb.pdf
5. Xilinx "UltraScale Architecture and Product Overview" http://www.xilinx.com/support/documentation/data_sheets/ds890-ultrascale-overview.pdf Xilinx "UltraScale Architecture and Product Overview" http://www.xilinx.com/support/documentation/data_sheets/ds890-ultrascale-overview.pdf