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<h1>Usart Peripheral</h1>
<null><a name="US0"></a><b>US0</b> <i><font size="-1">(<a href="AT91SAM9260_h.html#AT91S_USART">AT91S_USART</a>)</font></i><b> 0xFFFB0000 </b><i><font size="-1">(<a href="AT91SAM9260_h.html#AT91C_BASE_US0">AT91C_BASE_US0</a>)</font></i>
<table border=1 cellpadding=3 cellspacing=0><null><th bgcolor="#FFFFCC"><font size="-1">Periph ID <a href="#AIC">AIC</a></font></th><th bgcolor="#FFFFCC"><font size="-1">Symbol</font></th><th bgcolor="#FFFFCC"><font size="-1">Description</font></th><tr><td bgcolor="#FFFFCC"><font size="-1"><b>6</b> </font></td><td><font size="-1"><i><font size="-1">(<a href="AT91SAM9260_h.html#AT91C_ID_US0">AT91C_ID_US0</a>)</font></i></font></td><td><font size="-1">USART 0</font></td></tr>
</null></table><br><table border=1 cellpadding=3 cellspacing=0><null><th bgcolor="#FFFFCC"><font size="-1"><b>Signal</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>Symbol</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>PIO controller</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>Description</b>
</font></th><tr><td bgcolor="#FFFFCC"><font size="-1"><b>RXD0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB5_RXD0 ">AT91C_PB5_RXD0 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 5</font></td><td><font size="-1">USART 0 Receive Data</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>SCK0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA31_SCK0 ">AT91C_PA31_SCK0 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOA">PIOA</a> Periph: A Bit: 31</font></td><td><font size="-1">USART 0 Serial Clock</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>RTS0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB26_RTS0 ">AT91C_PB26_RTS0 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 26</font></td><td><font size="-1">USART 0 Ready To Send</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>DSR0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB22_DSR0 ">AT91C_PB22_DSR0 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 22</font></td><td><font size="-1">USART 0 Data Set ready</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>CTS0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB27_CTS0 ">AT91C_PB27_CTS0 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 27</font></td><td><font size="-1">USART 0 Clear To Send</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>DCD0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB23_DCD0 ">AT91C_PB23_DCD0 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 23</font></td><td><font size="-1">USART 0 Data Carrier Detect</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>DTR0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB24_DTR0 ">AT91C_PB24_DTR0 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 24</font></td><td><font size="-1">USART 0 Data Terminal ready</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>TXD0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB4_TXD0 ">AT91C_PB4_TXD0 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 4</font></td><td><font size="-1">USART 0 Transmit Data</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>RI0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB25_RI0 ">AT91C_PB25_RI0 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 25</font></td><td><font size="-1">USART 0 Ring Indicator</font></td></tr>
</null></table><br><table border=1 cellpadding=0 cellspacing=0 width="100%"><null><th bgcolor="#FFFFCC"><font size="-1"><b>Function</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>Description</b></font></th><tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM9260_h.html#AT91F_US0_CfgPMC">AT91F_US0_CfgPMC</a></b></font></td><td><font size="-1">Enable Peripheral clock in PMC for US0</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM9260_h.html#AT91F_US0_CfgPIO">AT91F_US0_CfgPIO</a></b></font></td><td><font size="-1">Configure PIO controllers to drive US0 signals</font></td></tr>
</null></table><br><br><a name="US1"></a><b>US1</b> <i><font size="-1">(<a href="AT91SAM9260_h.html#AT91S_USART">AT91S_USART</a>)</font></i><b> 0xFFFB4000 </b><i><font size="-1">(<a href="AT91SAM9260_h.html#AT91C_BASE_US1">AT91C_BASE_US1</a>)</font></i>
<table border=1 cellpadding=3 cellspacing=0><null><th bgcolor="#FFFFCC"><font size="-1">Periph ID <a href="#AIC">AIC</a></font></th><th bgcolor="#FFFFCC"><font size="-1">Symbol</font></th><th bgcolor="#FFFFCC"><font size="-1">Description</font></th><tr><td bgcolor="#FFFFCC"><font size="-1"><b>7</b> </font></td><td><font size="-1"><i><font size="-1">(<a href="AT91SAM9260_h.html#AT91C_ID_US1">AT91C_ID_US1</a>)</font></i></font></td><td><font size="-1">USART 1</font></td></tr>
</null></table><br><table border=1 cellpadding=3 cellspacing=0><null><th bgcolor="#FFFFCC"><font size="-1"><b>Signal</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>Symbol</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>PIO controller</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>Description</b>
</font></th><tr><td bgcolor="#FFFFCC"><font size="-1"><b>RXD1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB7_RXD1 ">AT91C_PB7_RXD1 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 7</font></td><td><font size="-1">USART 1 Receive Data</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>TXD1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB6_TXD1 ">AT91C_PB6_TXD1 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 6</font></td><td><font size="-1">USART 1 Transmit Data</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>SCK1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA29_SCK1 ">AT91C_PA29_SCK1 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOA">PIOA</a> Periph: A Bit: 29</font></td><td><font size="-1">USART 1 Serial Clock</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>RTS1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB28_RTS1 ">AT91C_PB28_RTS1 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 28</font></td><td><font size="-1">USART 1 Ready To Send</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>CTS1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB29_CTS1 ">AT91C_PB29_CTS1 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 29</font></td><td><font size="-1">USART 1 Clear To Send</font></td></tr>
</null></table><br><table border=1 cellpadding=0 cellspacing=0 width="100%"><null><th bgcolor="#FFFFCC"><font size="-1"><b>Function</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>Description</b></font></th><tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM9260_h.html#AT91F_US1_CfgPMC">AT91F_US1_CfgPMC</a></b></font></td><td><font size="-1">Enable Peripheral clock in PMC for US1</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM9260_h.html#AT91F_US1_CfgPIO">AT91F_US1_CfgPIO</a></b></font></td><td><font size="-1">Configure PIO controllers to drive US1 signals</font></td></tr>
</null></table><br><br><a name="US2"></a><b>US2</b> <i><font size="-1">(<a href="AT91SAM9260_h.html#AT91S_USART">AT91S_USART</a>)</font></i><b> 0xFFFB8000 </b><i><font size="-1">(<a href="AT91SAM9260_h.html#AT91C_BASE_US2">AT91C_BASE_US2</a>)</font></i>
<table border=1 cellpadding=3 cellspacing=0><null><th bgcolor="#FFFFCC"><font size="-1">Periph ID <a href="#AIC">AIC</a></font></th><th bgcolor="#FFFFCC"><font size="-1">Symbol</font></th><th bgcolor="#FFFFCC"><font size="-1">Description</font></th><tr><td bgcolor="#FFFFCC"><font size="-1"><b>8</b> </font></td><td><font size="-1"><i><font size="-1">(<a href="AT91SAM9260_h.html#AT91C_ID_US2">AT91C_ID_US2</a>)</font></i></font></td><td><font size="-1">USART 2</font></td></tr>
</null></table><br><table border=1 cellpadding=3 cellspacing=0><null><th bgcolor="#FFFFCC"><font size="-1"><b>Signal</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>Symbol</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>PIO controller</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>Description</b>
</font></th><tr><td bgcolor="#FFFFCC"><font size="-1"><b>CTS2</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA5_CTS2 ">AT91C_PA5_CTS2 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOA">PIOA</a> Periph: A Bit: 5</font></td><td><font size="-1">USART 2 Clear To Send</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>RXD2</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB9_RXD2 ">AT91C_PB9_RXD2 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 9</font></td><td><font size="-1">USART 2 Receive Data</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>TXD2</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB8_TXD2 ">AT91C_PB8_TXD2 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOB">PIOB</a> Periph: A Bit: 8</font></td><td><font size="-1">USART 2 Transmit Data</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>SCK2</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA30_SCK2 ">AT91C_PA30_SCK2 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOA">PIOA</a> Periph: A Bit: 30</font></td><td><font size="-1">USART 2 Serial Clock</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>RTS2</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA4_RTS2 ">AT91C_PA4_RTS2 </a>)</font></i></font></td><td><font size="-1"><a href="AT91SAM9260_PIO.html#PIOA">PIOA</a> Periph: A Bit: 4</font></td><td><font size="-1">USART 2 Ready To Send</font></td></tr>
</null></table><br><table border=1 cellpadding=0 cellspacing=0 width="100%"><null><th bgcolor="#FFFFCC"><font size="-1"><b>Function</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>Description</b></font></th><tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM9260_h.html#AT91F_US2_CfgPMC">AT91F_US2_CfgPMC</a></b></font></td><td><font size="-1">Enable Peripheral clock in PMC for US2</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM9260_h.html#AT91F_US2_CfgPIO">AT91F_US2_CfgPIO</a></b></font></td><td><font size="-1">Configure PIO controllers to drive US2 signals</font></td></tr>
</null></table><br><br><a name="US3"></a><b>US3</b> <i><font size="-1">(<a href="AT91SAM9260_h.html#AT91S_USART">AT91S_USART</a>)</font></i><b> 0xFFFD0000 </b><i><font size="-1">(<a href="AT91SAM9260_h.html#AT91C_BASE_US3">AT91C_BASE_US3</a>)</font></i>
<table border=1 cellpadding=3 cellspacing=0><null><th bgcolor="#FFFFCC"><font size="-1">Periph ID <a href="#AIC">AIC</a></font></th><th bgcolor="#FFFFCC"><font size="-1">Symbol</font></th><th bgcolor="#FFFFCC"><font size="-1">Description</font></th><tr><td bgcolor="#FFFFCC"><font size="-1"><b>23</b> </font></td><td><font size="-1"><i><font size="-1">(<a href="AT91SAM9260_h.html#AT91C_ID_US3">AT91C_ID_US3</a>)</font></i></font></td><td><font size="-1">USART 3</font></td></tr>
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