SFR(RFIM, 0x91); // RF Interrupt Mask
SFR(DPS, 0x92); // Data Pointer Select
SFR(MPAGE, 0x93); // Memory Page Select
+SFR(_XPAGE, 0x93); // Memory Page Select under the name SDCC needs it
SFR(ENDIAN, 0x95); // USB Endianess Control (CC2511Fx)
SFR(S0CON, 0x98); // Interrupt Flag 2
SBIT(ENCIF_0, 0x98, 0); // AES Interrupt Flag 0