FIR_OP0
lbc_write_4(sc->sc_obio, FIR, __SHIFTIN(FIR_OP_CM0, FIR_OP0));
lbc_write_4(sc->sc_obio, FIR, __SHIFTIN(FIR_OP_UA, FIR_OP0));
lbc_write_4(sc->sc_obio, FIR, __SHIFTIN(FIR_OP_RSW, FIR_OP0));
lbc_write_4(sc->sc_obio, FIR, __SHIFTIN(FIR_OP_WS, FIR_OP0));
lbc_write_4(sc->sc_obio, FIR, __SHIFTIN(FIR_OP_RBW, FIR_OP0));
lbc_write_4(sc->sc_obio, FIR, __SHIFTIN(FIR_OP_WB, FIR_OP0));