1 //*****************************************************************************
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3 // hw_uart.h - Macros and defines used when accessing the UART hardware
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5 // Copyright (c) 2005,2006 Luminary Micro, Inc. All rights reserved.
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7 // Software License Agreement
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9 // Luminary Micro, Inc. (LMI) is supplying this software for use solely and
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10 // exclusively on LMI's Stellaris Family of microcontroller products.
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12 // The software is owned by LMI and/or its suppliers, and is protected under
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13 // applicable copyright laws. All rights are reserved. Any use in violation
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14 // of the foregoing restrictions may subject the user to criminal sanctions
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15 // under applicable laws, as well as to civil liability for the breach of the
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16 // terms and conditions of this license.
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18 // THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
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19 // OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
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20 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
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21 // LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
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22 // CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
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24 // This is part of revision 523 of the Stellaris Driver Library.
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26 //*****************************************************************************
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28 #ifndef __HW_UART_H__
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29 #define __HW_UART_H__
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31 //*****************************************************************************
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33 // UART Register Offsets.
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35 //*****************************************************************************
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36 #define UART_O_DR 0x00000000 // Data Register
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37 #define UART_O_RSR 0x00000004 // Receive Status Register (read)
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38 #define UART_O_ECR 0x00000004 // Error Clear Register (write)
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39 #define UART_O_FR 0x00000018 // Flag Register (read only)
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40 #define UART_O_IBRD 0x00000024 // Integer Baud Rate Divisor Reg
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41 #define UART_O_FBRD 0x00000028 // Fractional Baud Rate Divisor Reg
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42 #define UART_O_LCR_H 0x0000002C // Line Control Register, HIGH byte
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43 #define UART_O_CTL 0x00000030 // Control Register
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44 #define UART_O_IFLS 0x00000034 // Interrupt FIFO Level Select Reg
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45 #define UART_O_IM 0x00000038 // Interrupt Mask Set/Clear Reg
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46 #define UART_O_RIS 0x0000003C // Raw Interrupt Status Register
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47 #define UART_O_MIS 0x00000040 // Masked Interrupt Status Register
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48 #define UART_O_ICR 0x00000044 // Interrupt Clear Register
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50 //*****************************************************************************
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52 // Data Register bits
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54 //*****************************************************************************
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55 #define UART_DR_OE 0x00000800 // Overrun Error
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56 #define UART_DR_BE 0x00000400 // Break Error
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57 #define UART_DR_PE 0x00000200 // Parity Error
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58 #define UART_DR_FE 0x00000100 // Framing Error
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60 //*****************************************************************************
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62 // Receive Status Register bits
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64 //*****************************************************************************
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65 #define UART_RSR_OE 0x00000008 // Overrun Error
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66 #define UART_RSR_BE 0x00000004 // Break Error
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67 #define UART_RSR_PE 0x00000002 // Parity Error
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68 #define UART_RSR_FE 0x00000001 // Framing Error
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70 //*****************************************************************************
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72 // Flag Register bits
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74 //*****************************************************************************
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75 #define UART_FR_RI 0x100 // Ring Indicator
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76 #define UART_FR_TXFE 0x080 // TX FIFO Empty
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77 #define UART_FR_RXFF 0x040 // RX FIFO Full
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78 #define UART_FR_TXFF 0x020 // TX FIFO Full
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79 #define UART_FR_RXFE 0x010 // RX FIFO Empty
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80 #define UART_FR_BUSY 0x008 // UART Busy
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82 //*****************************************************************************
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84 // Line Control Register High bits
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86 //*****************************************************************************
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87 #define UART_LCR_H_SPS 0x80 // Stick Parity Select
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88 #define UART_LCR_H_WLEN 0x60 // Word length
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89 #define UART_LCR_H_WLEN_8 0x60 // 8 bit data
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90 #define UART_LCR_H_WLEN_7 0x40 // 7 bit data
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91 #define UART_LCR_H_WLEN_6 0x20 // 6 bit data
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92 #define UART_LCR_H_WLEN_5 0x00 // 5 bit data
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93 #define UART_LCR_H_FEN 0x10 // Enable FIFO
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94 #define UART_LCR_H_STP2 0x08 // Two Stop Bits Select
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95 #define UART_LCR_H_EPS 0x04 // Even Parity Select
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96 #define UART_LCR_H_PEN 0x02 // Parity Enable
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97 #define UART_LCR_H_BRK 0x01 // Send Break
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99 //*****************************************************************************
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101 // Control Register bits
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103 //*****************************************************************************
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104 #define UART_CTL_CTSEN 0x8000 // CTS Hardware Flow Control
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105 #define UART_CTL_RTSEN 0x4000 // RTS Hardware Flow Control
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106 #define UART_CTL_OUT2 0x2000 // OUT2
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107 #define UART_CTL_OUT1 0x1000 // OUT1
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108 #define UART_CTL_RTS 0x0800 // Request To Send
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109 #define UART_CTL_DTR 0x0400 // Data Terminal Ready
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110 #define UART_CTL_RXE 0x0200 // Receive Enable
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111 #define UART_CTL_TXE 0x0100 // Transmit Enable
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112 #define UART_CTL_LBE 0x0080 // Loopback Enable
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113 #define UART_CTL_IIRLP 0x0004 // IrDA SIR low power mode
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114 #define UART_CTL_SIREN 0x0002 // SIR Enable
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115 #define UART_CTL_UARTEN 0x0001 // UART Enable
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117 //*****************************************************************************
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119 // Interrupt FIFO Level Select Register bits
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121 //*****************************************************************************
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122 #define UART_IFLS_RX1_8 0x00 // 1/8 Full
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123 #define UART_IFLS_RX2_8 0x10 // 1/4 Full
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124 #define UART_IFLS_RX4_8 0x20 // 1/2 Full
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125 #define UART_IFLS_RX6_8 0x30 // 3/4 Full
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126 #define UART_IFLS_RX7_8 0x40 // 7/8 Full
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127 #define UART_IFLS_TX1_8 0x00 // 1/8 Full
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128 #define UART_IFLS_TX2_8 0x01 // 1/4 Full
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129 #define UART_IFLS_TX4_8 0x02 // 1/2 Full
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130 #define UART_IFLS_TX6_8 0x03 // 3/4 Full
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131 #define UART_IFLS_TX7_8 0x04 // 7/8 Full
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133 //*****************************************************************************
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135 // Interrupt Mask Set/Clear Register bits
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137 //*****************************************************************************
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138 #define UART_IM_OEIM 0x400 // Overrun Error Interrupt Mask
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139 #define UART_IM_BEIM 0x200 // Break Error Interrupt Mask
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140 #define UART_IM_PEIM 0x100 // Parity Error Interrupt Mask
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141 #define UART_IM_FEIM 0x080 // Framing Error Interrupt Mask
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142 #define UART_IM_RTIM 0x040 // Receive Timeout Interrupt Mask
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143 #define UART_IM_TXIM 0x020 // Transmit Interrupt Mask
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144 #define UART_IM_RXIM 0x010 // Receive Interrupt Mask
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145 #define UART_IM_DSRMIM 0x008 // DSR Interrupt Mask
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146 #define UART_IM_DCDMIM 0x004 // DCD Interrupt Mask
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147 #define UART_IM_CTSMIM 0x002 // CTS Interrupt Mask
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148 #define UART_IM_RIMIM 0x001 // RI Interrupt Mask
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150 //*****************************************************************************
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152 // Raw Interrupt Status Register
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154 //*****************************************************************************
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155 #define UART_RIS_OERIS 0x400 // Overrun Error Interrupt Status
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156 #define UART_RIS_BERIS 0x200 // Break Error Interrupt Status
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157 #define UART_RIS_PERIS 0x100 // Parity Error Interrupt Status
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158 #define UART_RIS_FERIS 0x080 // Framing Error Interrupt Status
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159 #define UART_RIS_RTRIS 0x040 // Receive Timeout Interrupt Status
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160 #define UART_RIS_TXRIS 0x020 // Transmit Interrupt Status
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161 #define UART_RIS_RXRIS 0x010 // Receive Interrupt Status
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162 #define UART_RIS_DSRRMIS 0x008 // DSR Interrupt Status
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163 #define UART_RIS_DCDRMIS 0x004 // DCD Interrupt Status
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164 #define UART_RIS_CTSRMIS 0x002 // CTS Interrupt Status
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165 #define UART_RIS_RIRMIS 0x001 // RI Interrupt Status
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167 //*****************************************************************************
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169 // Masked Interrupt Status Register
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171 //*****************************************************************************
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172 #define UART_MIS_OEMIS 0x400 // Overrun Error Interrupt Status
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173 #define UART_MIS_BEMIS 0x200 // Break Error Interrupt Status
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174 #define UART_MIS_PEMIS 0x100 // Parity Error Interrupt Status
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175 #define UART_MIS_FEMIS 0x080 // Framing Error Interrupt Status
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176 #define UART_MIS_RTMIS 0x040 // Receive Timeout Interrupt Status
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177 #define UART_MIS_TXMIS 0x020 // Transmit Interrupt Status
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178 #define UART_MIS_RXMIS 0x010 // Receive Interrupt Status
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179 #define UART_MIS_DSRMMIS 0x008 // DSR Interrupt Status
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180 #define UART_MIS_DCDMMIS 0x004 // DCD Interrupt Status
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181 #define UART_MIS_CTSMMIS 0x002 // CTS Interrupt Status
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182 #define UART_MIS_RIMMIS 0x001 // RI Interrupt Status
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184 //*****************************************************************************
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186 // Interrupt Clear Register bits
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188 //*****************************************************************************
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189 #define UART_ICR_OEIC 0x200 // Overrun Error Interrupt Clear
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190 #define UART_ICR_BEIC 0x200 // Break Error Interrupt Clear
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191 #define UART_ICR_PEIC 0x200 // Parity Error Interrupt Clear
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192 #define UART_ICR_FEIC 0x200 // Framing Error Interrupt Clear
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193 #define UART_ICR_RTIC 0x200 // Receive Timeout Interrupt Clear
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194 #define UART_ICR_TXIC 0x200 // Transmit Interrupt Clear
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195 #define UART_ICR_RXIC 0x200 // Receive Interrupt Clear
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196 #define UART_ICR_DSRMIC 0x200 // DSR Interrupt Clear
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197 #define UART_ICR_DCDMIC 0x200 // DCD Interrupt Clear
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198 #define UART_ICR_CTSMIC 0x200 // CTS Interrupt Clear
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199 #define UART_ICR_RIMIC 0x200 // RI Interrupt Clear
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201 //*****************************************************************************
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203 // DMA Control Register bits
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205 //*****************************************************************************
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206 #define UART_DMACRDMAONERR 0x04 // Disable DMA On Error
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207 #define UART_DMACRTXDMAE 0x02 // Enable Transmit DMA
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208 #define UART_DMACRRXDMAE 0x01 // Enable Receive DMA
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210 #define UART_RSR_ANY (UART_RSR_OE | \
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215 //*****************************************************************************
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217 // Reset Values for UART Registers.
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219 //*****************************************************************************
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220 #define UART_RV_DR 0
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221 #define UART_RV_RSR 0x0
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222 #define UART_RV_ECR 0
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223 #define UART_RV_FR 0x90
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224 #define UART_RV_IBRD 0x0000
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225 #define UART_RV_FBRD 0x00
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226 #define UART_RV_LCR_H 0x00
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227 #define UART_RV_CTL 0x0300
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228 #define UART_RV_IFLS 0x12
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229 #define UART_RV_IM 0x000
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230 #define UART_RV_RIS 0x000
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231 #define UART_RV_MIS 0x000
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232 #define UART_RV_ICR 0x000
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234 #endif // __HW_UART_H__
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