rtt.h

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00002 /*                  Atmel Microcontroller Software Support                      */
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00011 /*                                                                              */
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00029 
00030 #ifndef _SAM3U_RTT_COMPONENT_
00031 #define _SAM3U_RTT_COMPONENT_
00032 
00033 /* ============================================================================= */
00034 /**  SOFTWARE API DEFINITION FOR Real-time Timer */
00035 /* ============================================================================= */
00036 /** \addtogroup SAM3U_RTT Real-time Timer */
00037 /*@{*/
00038 
00039 #if !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__))
00040 /** \brief Rtt hardware registers */
00041 typedef struct {
00042   RwReg RTT_MR; /**< \brief (Rtt Offset: 0x00) Mode Register */
00043   RwReg RTT_AR; /**< \brief (Rtt Offset: 0x04) Alarm Register */
00044   RoReg RTT_VR; /**< \brief (Rtt Offset: 0x08) Value Register */
00045   RoReg RTT_SR; /**< \brief (Rtt Offset: 0x0C) Status Register */
00046 } Rtt;
00047 #endif /* !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__)) */
00048 /* -------- RTT_MR : (RTT Offset: 0x00) Mode Register -------- */
00049 #define RTT_MR_RTPRES_Pos 0
00050 #define RTT_MR_RTPRES_Msk (0xffffu << RTT_MR_RTPRES_Pos) /**< \brief (RTT_MR) Real-time Timer Prescaler Value */
00051 #define RTT_MR_RTPRES(value) ((RTT_MR_RTPRES_Msk & ((value) << RTT_MR_RTPRES_Pos)))
00052 #define RTT_MR_ALMIEN (0x1u << 16) /**< \brief (RTT_MR) Alarm Interrupt Enable */
00053 #define RTT_MR_RTTINCIEN (0x1u << 17) /**< \brief (RTT_MR) Real-time Timer Increment Interrupt Enable */
00054 #define RTT_MR_RTTRST (0x1u << 18) /**< \brief (RTT_MR) Real-time Timer Restart */
00055 /* -------- RTT_AR : (RTT Offset: 0x04) Alarm Register -------- */
00056 #define RTT_AR_ALMV_Pos 0
00057 #define RTT_AR_ALMV_Msk (0xffffffffu << RTT_AR_ALMV_Pos) /**< \brief (RTT_AR) Alarm Value */
00058 #define RTT_AR_ALMV(value) ((RTT_AR_ALMV_Msk & ((value) << RTT_AR_ALMV_Pos)))
00059 /* -------- RTT_VR : (RTT Offset: 0x08) Value Register -------- */
00060 #define RTT_VR_CRTV_Pos 0
00061 #define RTT_VR_CRTV_Msk (0xffffffffu << RTT_VR_CRTV_Pos) /**< \brief (RTT_VR) Current Real-time Value */
00062 /* -------- RTT_SR : (RTT Offset: 0x0C) Status Register -------- */
00063 #define RTT_SR_ALMS (0x1u << 0) /**< \brief (RTT_SR) Real-time Alarm Status */
00064 #define RTT_SR_RTTINC (0x1u << 1) /**< \brief (RTT_SR) Real-time Timer Increment */
00065 
00066 /*@}*/
00067 
00068 
00069 #endif /* _SAM3U_RTT_COMPONENT_ */