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<title>Hardware API Selector: AT91SAM7S64 Definitions</title>
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<h1>Peripheral DMA Controller Peripheral</h1>
<null><a name="PDC_DBGU"></a><b>PDC_DBGU</b> <i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91S_PDC">AT91S_PDC</a>)</font></i><b> 0xFFFFF300 </b><i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91C_BASE_PDC_DBGU">AT91C_BASE_PDC_DBGU</a>)</font></i>
<br><a name="PDC_SPI"></a><b>PDC_SPI</b> <i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91S_PDC">AT91S_PDC</a>)</font></i><b> 0xFFFE0100 </b><i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91C_BASE_PDC_SPI">AT91C_BASE_PDC_SPI</a>)</font></i>
<br><a name="PDC_ADC"></a><b>PDC_ADC</b> <i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91S_PDC">AT91S_PDC</a>)</font></i><b> 0xFFFD8100 </b><i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91C_BASE_PDC_ADC">AT91C_BASE_PDC_ADC</a>)</font></i>
<br><a name="PDC_SSC"></a><b>PDC_SSC</b> <i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91S_PDC">AT91S_PDC</a>)</font></i><b> 0xFFFD4100 </b><i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91C_BASE_PDC_SSC">AT91C_BASE_PDC_SSC</a>)</font></i>
<br><a name="PDC_US1"></a><b>PDC_US1</b> <i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91S_PDC">AT91S_PDC</a>)</font></i><b> 0xFFFC4100 </b><i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91C_BASE_PDC_US1">AT91C_BASE_PDC_US1</a>)</font></i>
<br><a name="PDC_US0"></a><b>PDC_US0</b> <i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91S_PDC">AT91S_PDC</a>)</font></i><b> 0xFFFC0100 </b><i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91C_BASE_PDC_US0">AT91C_BASE_PDC_US0</a>)</font></i>
<br></null><a name="PDC"></a><h2>PDC Software API <i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91S_PDC">AT91S_PDC</a>)</font></i></h2>
<a name="PDC"></a><null><table border=1 cellpadding=0 cellspacing=0 width="100%"><null><th bgcolor="#FFFFCC"><font size="-1"><b>Offset</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>Field</b></font></th><th bgcolor="#FFFFCC"><font size="-1"><b>Description</b></font></th>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x0</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PDC.html#PDC_RPR">PDC_RPR</a></font></td><td><font size="-1">Receive Pointer Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x4</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PDC.html#PDC_RCR">PDC_RCR</a></font></td><td><font size="-1">Receive Counter Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x8</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PDC.html#PDC_TPR">PDC_TPR</a></font></td><td><font size="-1">Transmit Pointer Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PDC.html#PDC_TCR">PDC_TCR</a></font></td><td><font size="-1">Transmit Counter Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x10</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PDC.html#PDC_RNPR">PDC_RNPR</a></font></td><td><font size="-1">Receive Next Pointer Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x14</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PDC.html#PDC_RNCR">PDC_RNCR</a></font></td><td><font size="-1">Receive Next Counter Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x18</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PDC.html#PDC_TNPR">PDC_TNPR</a></font></td><td><font size="-1">Transmit Next Pointer Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x1C</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PDC.html#PDC_TNCR">PDC_TNCR</a></font></td><td><font size="-1">Transmit Next Counter Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x20</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PDC.html#PDC_PTCR">PDC_PTCR</a></font></td><td><font size="-1">PDC Transfer Control Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x24</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PDC.html#PDC_PTSR">PDC_PTSR</a></font></td><td><font size="-1">PDC Transfer Status Register</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_AT91SAM7S64_h.html#AT91F_PDC_IsTxEmpty">AT91F_PDC_IsTxEmpty</a></b></font></td><td><font size="-1">Test if the current transfer descriptor has been sent</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM7S64_h.html#AT91F_PDC_SendFrame">AT91F_PDC_SendFrame</a></b></font></td><td><font size="-1">Close PDC: disable TX and RX reset transfer descriptors</font></td></tr>
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