set_property IOSTANDARD LVCMOS33 [get_ports {din[3]}]
set_property IOSTANDARD LVCMOS33 [get_ports {din[2]}]
set_property IOSTANDARD LVCMOS33 [get_ports {din[1]}]
set_property IOSTANDARD LVCMOS33 [get_ports {din[0]}]
set_property IOSTANDARD LVCMOS33 [get_ports {qout[3]}]
set_property IOSTANDARD LVCMOS33 [get_ports {qout[2]}]
set_property IOSTANDARD LVCMOS33 [get_ports {qout[1]}]
set_property IOSTANDARD LVCMOS33 [get_ports {qout[0]}]
set_property PACKAGE_PIN P5 [get_ports {din[3]}]
set_property PACKAGE_PIN P4 [get_ports {din[2]}]
set_property PACKAGE_PIN P3 [get_ports {din[1]}]
set_property PACKAGE_PIN P2 [get_ports {din[0]}]
set_property PACKAGE_PIN F6 [get_ports {qout[3]}]
set_property PACKAGE_PIN G4 [get_ports {qout[2]}]
set_property PACKAGE_PIN G3 [get_ports {qout[1]}]
set_property PACKAGE_PIN J4 [get_ports {qout[0]}]
set_property IOSTANDARD LVCMOS33 [get_ports clk]
set_property IOSTANDARD LVCMOS33 [get_ports clrn]
set_property IOSTANDARD LVCMOS33 [get_ports enp]
set_property IOSTANDARD LVCMOS33 [get_ports ent]
set_property IOSTANDARD LVCMOS33 [get_ports ldn]
set_property IOSTANDARD LVCMOS33 [get_ports rco]
set_property PACKAGE_PIN P17 [get_ports clk]
set_property PACKAGE_PIN R1 [get_ports clrn]
set_property PACKAGE_PIN N4 [get_ports enp]
set_property PACKAGE_PIN M4 [get_ports ent]
set_property PACKAGE_PIN R2 [get_ports ldn]
set_property PACKAGE_PIN K2 [get_ports rco]
