uart_inst : entity work.uart
    port map (
        reset => reset,
        txclk => txclk,
        ld_tx_data => ld_tx_data,
        tx_data => tx_data,
        tx_enable => tx_enable,
        tx_out => tx_out,
        tx_empty => tx_empty,
        rxclk => rxclk,
        uld_rx_data => uld_rx_data,
        rx_data => rx_data,
        rx_enable => rx_enable,
        rx_in => rx_in,
        rx_empty => rx_empty
    );