micro_sec_to_vert_lines
num_lines = micro_sec_to_vert_lines(dcn3_14_ip.VBlankNomDefaultUS, timing);
num_lines = micro_sec_to_vert_lines(dcn3_5_ip.VBlankNomDefaultUS, timing);
num_lines = micro_sec_to_vert_lines(dcn3_51_ip.VBlankNomDefaultUS, timing);