FDRAW_RDCMD
fdraw.fdr_cmd[0] = (uint8_t)0xE0 | FDRAW_RDCMD; /* command */
case FDRAW_RDCMD:
#define CMD_READ (MT + SK + FDRAW_RDCMD + MFM)
case FDRAW_RDCMD:
csb->csb_cmds[0] = SK | FDRAW_RDCMD | MFM;
csb->csb_cmds[0] = MT | SK | FDRAW_RDCMD | MFM;
case FDRAW_RDCMD:
csb->csb_cmds[0] = SK + FDRAW_RDCMD;
csb->csb_cmds[0] = MT + SK + FDRAW_RDCMD;