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<h1>Triple Data Encryption Standard Peripheral</h1>
<null><a name="TDES"></a><b>TDES</b> <i><font size="-1">(<a href="AT91SAM7X256_h.html#AT91S_TDES">AT91S_TDES</a>)</font></i><b> 0xFFFA8000 </b><i><font size="-1">(<a href="AT91SAM7X256_h.html#AT91C_BASE_TDES">AT91C_BASE_TDES</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>19</b> </font></td><td><font size="-1"><i><font size="-1">(<a href="AT91SAM7X256_h.html#AT91C_ID_TDES">AT91C_ID_TDES</a>)</font></i></font></td><td><font size="-1">Triple Data Encryption Standard</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_AT91SAM7X256_h.html#AT91F_TDES_CfgPMC">AT91F_TDES_CfgPMC</a></b></font></td><td><font size="-1">Enable Peripheral clock in PMC for TDES</font></td></tr>
</null></table><br><br></null><a name="TDES"></a><h2>TDES Software API <i><font size="-1">(<a href="AT91SAM7X256_h.html#AT91S_TDES">AT91S_TDES</a>)</font></i></h2>
<a name="TDES"></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="AT91SAM7X256_TDES.html#TDES_CR">TDES_CR</a></font></td><td><font size="-1">Control Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x4</b></font></td><td><font size="-1"><a href="AT91SAM7X256_TDES.html#TDES_MR">TDES_MR</a></font></td><td><font size="-1">Mode Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x10</b></font></td><td><font size="-1"><a href="AT91SAM7X256_TDES.html#TDES_IER">TDES_IER</a></font></td><td><font size="-1">Interrupt Enable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x14</b></font></td><td><font size="-1"><a href="AT91SAM7X256_TDES.html#TDES_IDR">TDES_IDR</a></font></td><td><font size="-1">Interrupt Disable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x18</b></font></td><td><font size="-1"><a href="AT91SAM7X256_TDES.html#TDES_IMR">TDES_IMR</a></font></td><td><font size="-1">Interrupt Mask Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x1C</b></font></td><td><font size="-1"><a href="AT91SAM7X256_TDES.html#TDES_ISR">TDES_ISR</a></font></td><td><font size="-1">Interrupt Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x20</b></font></td><td><font size="-1">TDES_KEY1WxR[2] (<a href="AT91SAM7X256_TDES.html#TDES_KEY1WxR">TDES_KEY1WxR</a>)</font></td><td><font size="-1">Key 1 Word x Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x28</b></font></td><td><font size="-1">TDES_KEY2WxR[2] (<a href="AT91SAM7X256_TDES.html#TDES_KEY2WxR">TDES_KEY2WxR</a>)</font></td><td><font size="-1">Key 2 Word x Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x30</b></font></td><td><font size="-1">TDES_KEY3WxR[2] (<a href="AT91SAM7X256_TDES.html#TDES_KEY3WxR">TDES_KEY3WxR</a>)</font></td><td><font size="-1">Key 3 Word x Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x40</b></font></td><td><font size="-1">TDES_IDATAxR[2] (<a href="AT91SAM7X256_TDES.html#TDES_IDATAxR">TDES_IDATAxR</a>)</font></td><td><font size="-1">Input Data x Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x50</b></font></td><td><font size="-1">TDES_ODATAxR[2] (<a href="AT91SAM7X256_TDES.html#TDES_ODATAxR">TDES_ODATAxR</a>)</font></td><td><font size="-1">Output Data x Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x60</b></font></td><td><font size="-1">TDES_IVxR[2] (<a href="AT91SAM7X256_TDES.html#TDES_IVxR">TDES_IVxR</a>)</font></td><td><font size="-1">Initialization Vector x Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xFC</b></font></td><td><font size="-1"><a href="AT91SAM7X256_TDES.html#TDES_VR">TDES_VR</a></font></td><td><font size="-1">TDES Version Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x100</b></font></td><td><font size="-1">TDES_RPR (<a href="AT91SAM7X256_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>0x104</b></font></td><td><font size="-1">TDES_RCR (<a href="AT91SAM7X256_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>0x108</b></font></td><td><font size="-1">TDES_TPR (<a href="AT91SAM7X256_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>0x10C</b></font></td><td><font size="-1">TDES_TCR (<a href="AT91SAM7X256_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>0x110</b></font></td><td><font size="-1">TDES_RNPR (<a href="AT91SAM7X256_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>0x114</b></font></td><td><font size="-1">TDES_RNCR (<a href="AT91SAM7X256_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>0x118</b></font></td><td><font size="-1">TDES_TNPR (<a href="AT91SAM7X256_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>0x11C</b></font></td><td><font size="-1">TDES_TNCR (<a href="AT91SAM7X256_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>0x120</b></font></td><td><font size="-1">TDES_PTCR (<a href="AT91SAM7X256_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>0x124</b></font></td><td><font size="-1">TDES_PTSR (<a href="AT91SAM7X256_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_AT91SAM7X256_h.html#AT91F_TDES_IsInterruptMasked">AT91F_TDES_IsInterruptMasked</a></b></font></td><td><font size="-1">Test if TDES Interrupt is Masked </font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM7X256_h.html#AT91F_TDES_EnableIt">AT91F_TDES_EnableIt</a></b></font></td><td><font size="-1">Enable TDES interrupt</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM7X256_h.html#AT91F_TDES_SetInitializationVector">AT91F_TDES_SetInitializationVector</a></b></font></td><td><font size="-1">Set Initialization Vector x</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM7X256_h.html#AT91F_TDES_SoftReset">AT91F_TDES_SoftReset</a></b></font></td><td><font size="-1">Reset TDES</font></td></tr>
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