S_WR_LFSR_RSVD
#define V_WR_LFSR_RSVD(x) ((x) << S_WR_LFSR_RSVD)
#define G_WR_LFSR_RSVD(x) (((x) >> S_WR_LFSR_RSVD) & M_WR_LFSR_RSVD)