core_ca72.h

/* IO definitions (access restrictions to peripheral registers) */
#ifdef __cplusplus
  #define   __I     volatile             /*!< \brief Defines 'read only' permissions */
#else
  #define   __I     volatile const       /*!< \brief Defines 'read only' permissions */
#endif
#define     __O     volatile             /*!< \brief Defines 'write only' permissions */
#define     __IO    volatile             /*!< \brief Defines 'read / write' permissions */

/* following defines should be used for structure members */
#define     __IM     volatile const      /*!< \brief Defines 'read only' structure member permissions */
#define     __OM     volatile            /*!< \brief Defines 'write only' structure member permissions */
#define     __IOM    volatile            /*!< \brief Defines 'read / write' structure member permissions */
#define RESERVED(N, T) T RESERVED##N;    // placeholder struct members used for "reserved" areas