1 /* ---------------------------------------------------------------------------- */
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2 /* Atmel Microcontroller Software Support */
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3 /* SAM Software Package License */
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4 /* ---------------------------------------------------------------------------- */
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5 /* Copyright (c) 2014, Atmel Corporation */
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7 /* All rights reserved. */
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9 /* Redistribution and use in source and binary forms, with or without */
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10 /* modification, are permitted provided that the following condition is met: */
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12 /* - Redistributions of source code must retain the above copyright notice, */
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13 /* this list of conditions and the disclaimer below. */
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15 /* Atmel's name may not be used to endorse or promote products derived from */
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16 /* this software without specific prior written permission. */
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18 /* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */
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19 /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
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20 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */
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21 /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */
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22 /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
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23 /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
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24 /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
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25 /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
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26 /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */
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27 /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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28 /* ---------------------------------------------------------------------------- */
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30 #ifndef _SAM_RTT_COMPONENT_
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31 #define _SAM_RTT_COMPONENT_
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33 /* ============================================================================= */
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34 /** SOFTWARE API DEFINITION FOR Real-time Timer */
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35 /* ============================================================================= */
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36 /** \addtogroup SAM_RTT Real-time Timer */
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39 #if !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__))
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40 /** \brief Rtt hardware registers */
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42 __IO uint32_t RTT_MR; /**< \brief (Rtt Offset: 0x00) Mode Register */
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43 __IO uint32_t RTT_AR; /**< \brief (Rtt Offset: 0x04) Alarm Register */
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44 __I uint32_t RTT_VR; /**< \brief (Rtt Offset: 0x08) Value Register */
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45 __I uint32_t RTT_SR; /**< \brief (Rtt Offset: 0x0C) Status Register */
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47 #endif /* !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__)) */
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48 /* -------- RTT_MR : (RTT Offset: 0x00) Mode Register -------- */
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49 #define RTT_MR_RTPRES_Pos 0
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50 #define RTT_MR_RTPRES_Msk (0xffffu << RTT_MR_RTPRES_Pos) /**< \brief (RTT_MR) Real-time Timer Prescaler Value */
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51 #define RTT_MR_RTPRES(value) ((RTT_MR_RTPRES_Msk & ((value) << RTT_MR_RTPRES_Pos)))
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52 #define RTT_MR_ALMIEN (0x1u << 16) /**< \brief (RTT_MR) Alarm Interrupt Enable */
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53 #define RTT_MR_RTTINCIEN (0x1u << 17) /**< \brief (RTT_MR) Real-time Timer Increment Interrupt Enable */
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54 #define RTT_MR_RTTRST (0x1u << 18) /**< \brief (RTT_MR) Real-time Timer Restart */
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55 #define RTT_MR_RTTDIS (0x1u << 20) /**< \brief (RTT_MR) Real-time Timer Disable */
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56 #define RTT_MR_RTC1HZ (0x1u << 24) /**< \brief (RTT_MR) Real-Time Clock 1 Hz Clock Selection */
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57 /* -------- RTT_AR : (RTT Offset: 0x04) Alarm Register -------- */
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58 #define RTT_AR_ALMV_Pos 0
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59 #define RTT_AR_ALMV_Msk (0xffffffffu << RTT_AR_ALMV_Pos) /**< \brief (RTT_AR) Alarm Value */
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60 #define RTT_AR_ALMV(value) ((RTT_AR_ALMV_Msk & ((value) << RTT_AR_ALMV_Pos)))
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61 /* -------- RTT_VR : (RTT Offset: 0x08) Value Register -------- */
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62 #define RTT_VR_CRTV_Pos 0
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63 #define RTT_VR_CRTV_Msk (0xffffffffu << RTT_VR_CRTV_Pos) /**< \brief (RTT_VR) Current Real-time Value */
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64 /* -------- RTT_SR : (RTT Offset: 0x0C) Status Register -------- */
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65 #define RTT_SR_ALMS (0x1u << 0) /**< \brief (RTT_SR) Real-time Alarm Status */
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66 #define RTT_SR_RTTINC (0x1u << 1) /**< \brief (RTT_SR) Prescaler Roll-over Status */
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71 #endif /* _SAM_RTT_COMPONENT_ */
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