interface audio_buffer_interface;
    logic [10:0] addra;
    logic [7:0] dina;
    logic clka;
    logic ena;
    logic address_half;

    modport driver (
        output addra, dina, clka, ena,
        input address_half
    );

    modport receiver (
        input addra, dina, clka, ena,
        output address_half
    );

endinterface
