MFP_INTR_RCV_FULL
mfp_bit_clear_iera(MFP_INTR_RCV_FULL | MFP_INTR_TIMER_B);
mfp_bit_set_iera(MFP_INTR_RCV_FULL);
mfp_bit_clear_iera(MFP_INTR_RCV_FULL);