FIR_OP_RBW
(FIR_OP_RBW << FIR_OP4_SHIFT));
(FIR_OP_RBW << FIR_OP3_SHIFT));
(FIR_OP_RBW << FIR_OP2_SHIFT));
(FIR_OP_RBW << FIR_OP1_SHIFT));