hardware/arduino/sam/system/CMSIS/Device/ATMEL/sam3s/include/component/component_rtt.h

/* ----------------------------------------------------------------------------
 *         SAM Software Package License
 * ----------------------------------------------------------------------------
 * Copyright (c) 2012, Atmel Corporation
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following condition is met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the disclaimer below.
 *
 * Atmel's name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ----------------------------------------------------------------------------
 */

#ifndef _SAM3S_RTT_COMPONENT_
#define _SAM3S_RTT_COMPONENT_

/* ============================================================================= */
/**  SOFTWARE API DEFINITION FOR Real-time Timer */
/* ============================================================================= */
/** \addtogroup SAM3S_RTT Real-time Timer */
/*@{*/

#if !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__))
/** \brief Rtt hardware registers */
typedef struct {
  RwReg RTT_MR; /**< \brief (Rtt Offset: 0x00) Mode Register */
  RwReg RTT_AR; /**< \brief (Rtt Offset: 0x04) Alarm Register */
  RoReg RTT_VR; /**< \brief (Rtt Offset: 0x08) Value Register */
  RoReg RTT_SR; /**< \brief (Rtt Offset: 0x0C) Status Register */
} Rtt;
#endif /* !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__)) */
/* -------- RTT_MR : (RTT Offset: 0x00) Mode Register -------- */
#define RTT_MR_RTPRES_Pos 0
#define RTT_MR_RTPRES_Msk (0xffffu << RTT_MR_RTPRES_Pos) /**< \brief (RTT_MR) Real-time Timer Prescaler Value */
#define RTT_MR_RTPRES(value) ((RTT_MR_RTPRES_Msk & ((value) << RTT_MR_RTPRES_Pos)))
#define RTT_MR_ALMIEN (0x1u << 16) /**< \brief (RTT_MR) Alarm Interrupt Enable */
#define RTT_MR_RTTINCIEN (0x1u << 17) /**< \brief (RTT_MR) Real-time Timer Increment Interrupt Enable */
#define RTT_MR_RTTRST (0x1u << 18) /**< \brief (RTT_MR) Real-time Timer Restart */
/* -------- RTT_AR : (RTT Offset: 0x04) Alarm Register -------- */
#define RTT_AR_ALMV_Pos 0
#define RTT_AR_ALMV_Msk (0xffffffffu << RTT_AR_ALMV_Pos) /**< \brief (RTT_AR) Alarm Value */
#define RTT_AR_ALMV(value) ((RTT_AR_ALMV_Msk & ((value) << RTT_AR_ALMV_Pos)))
/* -------- RTT_VR : (RTT Offset: 0x08) Value Register -------- */
#define RTT_VR_CRTV_Pos 0
#define RTT_VR_CRTV_Msk (0xffffffffu << RTT_VR_CRTV_Pos) /**< \brief (RTT_VR) Current Real-time Value */
/* -------- RTT_SR : (RTT Offset: 0x0C) Status Register -------- */
#define RTT_SR_ALMS (0x1u << 0) /**< \brief (RTT_SR) Real-time Alarm Status */
#define RTT_SR_RTTINC (0x1u << 1) /**< \brief (RTT_SR) Real-time Timer Increment */

/*@}*/


#endif /* _SAM3S_RTT_COMPONENT_ */