#define RFIF_IM_CCA (1 << 1)
#define RFIF_IM_SFD (1 << 0)
+sfr at 0x91 RFIM;
+#define RFIM_IM_TXUNF (1 << 7)
+#define RFIM_IM_RXOVF (1 << 6)
+#define RFIM_IM_TIMEOUT (1 << 5)
+#define RFIM_IM_DONE (1 << 4)
+#define RFIM_IM_CS (1 << 3)
+#define RFIM_IM_PQT (1 << 2)
+#define RFIM_IM_CCA (1 << 1)
+#define RFIM_IM_SFD (1 << 0)
+
sfr at 0xE1 RFST;
#define RFST_SFSTXON 0x00