FDC_1MBPS
#define FDF_3_2880 36,2,0xFF,0x1B,80,0,FDC_1MBPS,002,0x4C,1,1,FL_MFM|FL_PERPND
out->trans = FDC_1MBPS;
case FDC_1MBPS: speed = 1000; break;