IO_BUFFER_TYPE VHDL Example - 2023.1 English

entity test is port(
in1 : std_logic_vector (8 downto 0);
clk : std_logic;
out1 : std_logic_vector(8 downto 0));
attribute io_buffer_type : string;
attribute io_buffer_type of out1: signal is "none";
end test;