#define RTT_MR_OFF 0x00000000
#define RTT_MR
#define RTT_RTPRES 0x0000FFFF
#define RTT_RTPRES_LSB 0
#define RTT_ALMIEN 0x00010000
#define RTT_RTTINCIEN 0x00020000
#define RTT_RTTRST 0x00040000
#define RTT_AR_OFF 0x00000004
#define RTT_AR
#define RTT_VR_OFF 0x00000004
#define RTT_VR
#define RTT_SR_OFF 0x00000008
#define RTT_SR
#define RTT_ALMS 0x00000001
#define RTT_RTTINC 0x00000002