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_WDT_COMPONENT_
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31 #define _SAM_WDT_COMPONENT_
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33 /* ============================================================================= */
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34 /** SOFTWARE API DEFINITION FOR Watchdog Timer */
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35 /* ============================================================================= */
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36 /** \addtogroup SAM_WDT Watchdog Timer */
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39 #if !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__))
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40 /** \brief Wdt hardware registers */
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42 __O uint32_t WDT_CR; /**< \brief (Wdt Offset: 0x00) Control Register */
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43 __IO uint32_t WDT_MR; /**< \brief (Wdt Offset: 0x04) Mode Register */
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44 __I uint32_t WDT_SR; /**< \brief (Wdt Offset: 0x08) Status Register */
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46 #endif /* !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__)) */
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47 /* -------- WDT_CR : (WDT Offset: 0x00) Control Register -------- */
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48 #define WDT_CR_WDRSTT (0x1u << 0) /**< \brief (WDT_CR) Watchdog Restart */
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49 #define WDT_CR_KEY_Pos 24
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50 #define WDT_CR_KEY_Msk (0xffu << WDT_CR_KEY_Pos) /**< \brief (WDT_CR) Password. */
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51 #define WDT_CR_KEY_PASSWD (0xA5u << 24) /**< \brief (WDT_CR) Writing any other value in this field aborts the write operation. */
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52 /* -------- WDT_MR : (WDT Offset: 0x04) Mode Register -------- */
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53 #define WDT_MR_WDV_Pos 0
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54 #define WDT_MR_WDV_Msk (0xfffu << WDT_MR_WDV_Pos) /**< \brief (WDT_MR) Watchdog Counter Value */
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55 #define WDT_MR_WDV(value) ((WDT_MR_WDV_Msk & ((value) << WDT_MR_WDV_Pos)))
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56 #define WDT_MR_WDFIEN (0x1u << 12) /**< \brief (WDT_MR) Watchdog Fault Interrupt Enable */
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57 #define WDT_MR_WDRSTEN (0x1u << 13) /**< \brief (WDT_MR) Watchdog Reset Enable */
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58 #define WDT_MR_WDDIS (0x1u << 15) /**< \brief (WDT_MR) Watchdog Disable */
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59 #define WDT_MR_WDD_Pos 16
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60 #define WDT_MR_WDD_Msk (0xfffu << WDT_MR_WDD_Pos) /**< \brief (WDT_MR) Watchdog Delta Value */
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61 #define WDT_MR_WDD(value) ((WDT_MR_WDD_Msk & ((value) << WDT_MR_WDD_Pos)))
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62 #define WDT_MR_WDDBGHLT (0x1u << 28) /**< \brief (WDT_MR) Watchdog Debug Halt */
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63 #define WDT_MR_WDIDLEHLT (0x1u << 29) /**< \brief (WDT_MR) Watchdog Idle Halt */
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64 /* -------- WDT_SR : (WDT Offset: 0x08) Status Register -------- */
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65 #define WDT_SR_WDUNF (0x1u << 0) /**< \brief (WDT_SR) Watchdog Underflow */
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66 #define WDT_SR_WDERR (0x1u << 1) /**< \brief (WDT_SR) Watchdog Error */
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71 #endif /* _SAM_WDT_COMPONENT_ */
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