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_UART_COMPONENT_
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31 #define _SAM_UART_COMPONENT_
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33 /* ============================================================================= */
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34 /** SOFTWARE API DEFINITION FOR Universal Asynchronous Receiver Transmitter */
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35 /* ============================================================================= */
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36 /** \addtogroup SAM_UART Universal Asynchronous Receiver Transmitter */
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39 #if !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__))
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40 /** \brief Uart hardware registers */
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42 __O uint32_t UART_CR; /**< \brief (Uart Offset: 0x0000) Control Register */
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43 __IO uint32_t UART_MR; /**< \brief (Uart Offset: 0x0004) Mode Register */
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44 __O uint32_t UART_IER; /**< \brief (Uart Offset: 0x0008) Interrupt Enable Register */
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45 __O uint32_t UART_IDR; /**< \brief (Uart Offset: 0x000C) Interrupt Disable Register */
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46 __I uint32_t UART_IMR; /**< \brief (Uart Offset: 0x0010) Interrupt Mask Register */
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47 __I uint32_t UART_SR; /**< \brief (Uart Offset: 0x0014) Status Register */
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48 __I uint32_t UART_RHR; /**< \brief (Uart Offset: 0x0018) Receive Holding Register */
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49 __O uint32_t UART_THR; /**< \brief (Uart Offset: 0x001C) Transmit Holding Register */
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50 __IO uint32_t UART_BRGR; /**< \brief (Uart Offset: 0x0020) Baud Rate Generator Register */
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51 __IO uint32_t UART_CMPR; /**< \brief (Uart Offset: 0x0024) Comparison Register */
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52 __I uint32_t Reserved1[47];
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53 __IO uint32_t UART_WPMR; /**< \brief (Uart Offset: 0x00E4) Write Protection Mode Register */
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55 #endif /* !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__)) */
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56 /* -------- UART_CR : (UART Offset: 0x0000) Control Register -------- */
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57 #define UART_CR_RSTRX (0x1u << 2) /**< \brief (UART_CR) Reset Receiver */
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58 #define UART_CR_RSTTX (0x1u << 3) /**< \brief (UART_CR) Reset Transmitter */
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59 #define UART_CR_RXEN (0x1u << 4) /**< \brief (UART_CR) Receiver Enable */
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60 #define UART_CR_RXDIS (0x1u << 5) /**< \brief (UART_CR) Receiver Disable */
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61 #define UART_CR_TXEN (0x1u << 6) /**< \brief (UART_CR) Transmitter Enable */
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62 #define UART_CR_TXDIS (0x1u << 7) /**< \brief (UART_CR) Transmitter Disable */
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63 #define UART_CR_RSTSTA (0x1u << 8) /**< \brief (UART_CR) Reset Status Bits */
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64 #define UART_CR_REQCLR (0x1u << 12) /**< \brief (UART_CR) Request Clear */
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65 /* -------- UART_MR : (UART Offset: 0x0004) Mode Register -------- */
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66 #define UART_MR_FILTER (0x1u << 4) /**< \brief (UART_MR) Receiver Digital Filter */
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67 #define UART_MR_FILTER_DISABLED (0x0u << 4) /**< \brief (UART_MR) UART does not filter the receive line. */
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68 #define UART_MR_FILTER_ENABLED (0x1u << 4) /**< \brief (UART_MR) UART filters the receive line using a three-sample filter (16x-bit clock) (2 over 3 majority). */
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69 #define UART_MR_PAR_Pos 9
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70 #define UART_MR_PAR_Msk (0x7u << UART_MR_PAR_Pos) /**< \brief (UART_MR) Parity Type */
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71 #define UART_MR_PAR_EVEN (0x0u << 9) /**< \brief (UART_MR) Even Parity */
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72 #define UART_MR_PAR_ODD (0x1u << 9) /**< \brief (UART_MR) Odd Parity */
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73 #define UART_MR_PAR_SPACE (0x2u << 9) /**< \brief (UART_MR) Space: parity forced to 0 */
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74 #define UART_MR_PAR_MARK (0x3u << 9) /**< \brief (UART_MR) Mark: parity forced to 1 */
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75 #define UART_MR_PAR_NO (0x4u << 9) /**< \brief (UART_MR) No parity */
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76 #define UART_MR_BRSRCCK (0x1u << 12) /**< \brief (UART_MR) Baud Rate Source Clock */
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77 #define UART_MR_BRSRCCK_PERIPH_CLK (0x0u << 12) /**< \brief (UART_MR) The baud rate is driven by the peripheral MCK */
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78 #define UART_MR_BRSRCCK_PMC_PCK (0x1u << 12) /**< \brief (UART_MR) The baud rate is driven by a PMC Programmable clock PCK (see PMC section). */
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79 #define UART_MR_CHMODE_Pos 14
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80 #define UART_MR_CHMODE_Msk (0x3u << UART_MR_CHMODE_Pos) /**< \brief (UART_MR) Channel Mode */
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81 #define UART_MR_CHMODE_NORMAL (0x0u << 14) /**< \brief (UART_MR) Normal mode */
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82 #define UART_MR_CHMODE_AUTOMATIC (0x1u << 14) /**< \brief (UART_MR) Automatic echo */
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83 #define UART_MR_CHMODE_LOCAL_LOOPBACK (0x2u << 14) /**< \brief (UART_MR) Local loopback */
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84 #define UART_MR_CHMODE_REMOTE_LOOPBACK (0x3u << 14) /**< \brief (UART_MR) Remote loopback */
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85 /* -------- UART_IER : (UART Offset: 0x0008) Interrupt Enable Register -------- */
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86 #define UART_IER_RXRDY (0x1u << 0) /**< \brief (UART_IER) Enable RXRDY Interrupt */
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87 #define UART_IER_TXRDY (0x1u << 1) /**< \brief (UART_IER) Enable TXRDY Interrupt */
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88 #define UART_IER_OVRE (0x1u << 5) /**< \brief (UART_IER) Enable Overrun Error Interrupt */
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89 #define UART_IER_FRAME (0x1u << 6) /**< \brief (UART_IER) Enable Framing Error Interrupt */
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90 #define UART_IER_PARE (0x1u << 7) /**< \brief (UART_IER) Enable Parity Error Interrupt */
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91 #define UART_IER_TXEMPTY (0x1u << 9) /**< \brief (UART_IER) Enable TXEMPTY Interrupt */
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92 #define UART_IER_CMP (0x1u << 15) /**< \brief (UART_IER) Enable Comparison Interrupt */
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93 /* -------- UART_IDR : (UART Offset: 0x000C) Interrupt Disable Register -------- */
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94 #define UART_IDR_RXRDY (0x1u << 0) /**< \brief (UART_IDR) Disable RXRDY Interrupt */
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95 #define UART_IDR_TXRDY (0x1u << 1) /**< \brief (UART_IDR) Disable TXRDY Interrupt */
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96 #define UART_IDR_OVRE (0x1u << 5) /**< \brief (UART_IDR) Disable Overrun Error Interrupt */
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97 #define UART_IDR_FRAME (0x1u << 6) /**< \brief (UART_IDR) Disable Framing Error Interrupt */
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98 #define UART_IDR_PARE (0x1u << 7) /**< \brief (UART_IDR) Disable Parity Error Interrupt */
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99 #define UART_IDR_TXEMPTY (0x1u << 9) /**< \brief (UART_IDR) Disable TXEMPTY Interrupt */
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100 #define UART_IDR_CMP (0x1u << 15) /**< \brief (UART_IDR) Disable Comparison Interrupt */
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101 /* -------- UART_IMR : (UART Offset: 0x0010) Interrupt Mask Register -------- */
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102 #define UART_IMR_RXRDY (0x1u << 0) /**< \brief (UART_IMR) Mask RXRDY Interrupt */
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103 #define UART_IMR_TXRDY (0x1u << 1) /**< \brief (UART_IMR) Disable TXRDY Interrupt */
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104 #define UART_IMR_OVRE (0x1u << 5) /**< \brief (UART_IMR) Mask Overrun Error Interrupt */
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105 #define UART_IMR_FRAME (0x1u << 6) /**< \brief (UART_IMR) Mask Framing Error Interrupt */
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106 #define UART_IMR_PARE (0x1u << 7) /**< \brief (UART_IMR) Mask Parity Error Interrupt */
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107 #define UART_IMR_TXEMPTY (0x1u << 9) /**< \brief (UART_IMR) Mask TXEMPTY Interrupt */
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108 #define UART_IMR_CMP (0x1u << 15) /**< \brief (UART_IMR) Mask Comparison Interrupt */
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109 /* -------- UART_SR : (UART Offset: 0x0014) Status Register -------- */
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110 #define UART_SR_RXRDY (0x1u << 0) /**< \brief (UART_SR) Receiver Ready */
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111 #define UART_SR_TXRDY (0x1u << 1) /**< \brief (UART_SR) Transmitter Ready */
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112 #define UART_SR_OVRE (0x1u << 5) /**< \brief (UART_SR) Overrun Error */
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113 #define UART_SR_FRAME (0x1u << 6) /**< \brief (UART_SR) Framing Error */
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114 #define UART_SR_PARE (0x1u << 7) /**< \brief (UART_SR) Parity Error */
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115 #define UART_SR_TXEMPTY (0x1u << 9) /**< \brief (UART_SR) Transmitter Empty */
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116 #define UART_SR_CMP (0x1u << 15) /**< \brief (UART_SR) Comparison Match */
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117 /* -------- UART_RHR : (UART Offset: 0x0018) Receive Holding Register -------- */
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118 #define UART_RHR_RXCHR_Pos 0
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119 #define UART_RHR_RXCHR_Msk (0xffu << UART_RHR_RXCHR_Pos) /**< \brief (UART_RHR) Received Character */
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120 /* -------- UART_THR : (UART Offset: 0x001C) Transmit Holding Register -------- */
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121 #define UART_THR_TXCHR_Pos 0
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122 #define UART_THR_TXCHR_Msk (0xffu << UART_THR_TXCHR_Pos) /**< \brief (UART_THR) Character to be Transmitted */
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123 #define UART_THR_TXCHR(value) ((UART_THR_TXCHR_Msk & ((value) << UART_THR_TXCHR_Pos)))
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124 /* -------- UART_BRGR : (UART Offset: 0x0020) Baud Rate Generator Register -------- */
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125 #define UART_BRGR_CD_Pos 0
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126 #define UART_BRGR_CD_Msk (0xffffu << UART_BRGR_CD_Pos) /**< \brief (UART_BRGR) Clock Divisor */
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127 #define UART_BRGR_CD(value) ((UART_BRGR_CD_Msk & ((value) << UART_BRGR_CD_Pos)))
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128 /* -------- UART_CMPR : (UART Offset: 0x0024) Comparison Register -------- */
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129 #define UART_CMPR_VAL1_Pos 0
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130 #define UART_CMPR_VAL1_Msk (0xffu << UART_CMPR_VAL1_Pos) /**< \brief (UART_CMPR) First Comparison Value for Received Character */
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131 #define UART_CMPR_VAL1(value) ((UART_CMPR_VAL1_Msk & ((value) << UART_CMPR_VAL1_Pos)))
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132 #define UART_CMPR_CMPMODE (0x1u << 12) /**< \brief (UART_CMPR) Comparison Mode */
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133 #define UART_CMPR_CMPMODE_FLAG_ONLY (0x0u << 12) /**< \brief (UART_CMPR) Any character is received and comparison function drives CMP flag. */
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134 #define UART_CMPR_CMPMODE_START_CONDITION (0x1u << 12) /**< \brief (UART_CMPR) Comparison condition must be met to start reception. */
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135 #define UART_CMPR_CMPPAR (0x1u << 14) /**< \brief (UART_CMPR) Compare Parity */
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136 #define UART_CMPR_VAL2_Pos 16
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137 #define UART_CMPR_VAL2_Msk (0xffu << UART_CMPR_VAL2_Pos) /**< \brief (UART_CMPR) Second Comparison Value for Received Character */
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138 #define UART_CMPR_VAL2(value) ((UART_CMPR_VAL2_Msk & ((value) << UART_CMPR_VAL2_Pos)))
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139 /* -------- UART_WPMR : (UART Offset: 0x00E4) Write Protection Mode Register -------- */
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140 #define UART_WPMR_WPEN (0x1u << 0) /**< \brief (UART_WPMR) Write Protection Enable */
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141 #define UART_WPMR_WPKEY_Pos 8
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142 #define UART_WPMR_WPKEY_Msk (0xffffffu << UART_WPMR_WPKEY_Pos) /**< \brief (UART_WPMR) Write Protection Key */
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143 #define UART_WPMR_WPKEY_PASSWD (0x554152u << 8) /**< \brief (UART_WPMR) Writing any other value in this field aborts the write operation.Always reads as 0. */
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148 #endif /* _SAM_UART_COMPONENT_ */
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