set_property PACKAGE_PIN W5 [get_ports clk]
set_property PACKAGE_PIN U16 [get_ports d]
set_property PACKAGE_PIN E19 [get_ports r]
set_property PACKAGE_PIN U19 [get_ports q]

set_property IOSTANDARD LVCMOS33 [get_ports clk]
set_property IOSTANDARD LVCMOS33 [get_ports d]
set_property IOSTANDARD LVCMOS33 [get_ports r]
set_property IOSTANDARD LVCMOS33 [get_ports q]
