SG_MASK
c_phase = (hpdu->pduh_Flags >> CSG_SHIFT) & SG_MASK;
(hpdu->pduh_Flags >> CSG_SHIFT) & SG_MASK,
hpdu->pduh_Flags & SG_MASK));
c_phase = rx_pdu->pdu_hdr.pduh_Flags & SG_MASK;
c_phase = (rx_pdu->pdu_hdr.pduh_Flags >> CSG_SHIFT) & SG_MASK;