IOP_RUN
iop->status_ctrl = IOP_RUN | IOP_AUTOINC;
iop->status_ctrl = IOP_IRQ | IOP_RUN | IOP_AUTOINC;
iop->status_ctrl = IOP_INT0 | IOP_RUN | IOP_AUTOINC;
iop->status_ctrl = IOP_INT1 | IOP_RUN | IOP_AUTOINC;