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<h1>Debug Unit Peripheral</h1>
<null><a name="DBGU"></a><b>DBGU</b> <i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91S_DBGU">AT91S_DBGU</a>)</font></i><b> 0xFFFFF200 </b><i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91C_BASE_DBGU">AT91C_BASE_DBGU</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>1</b> </font></td><td><font size="-1"><i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91C_ID_SYS">AT91C_ID_SYS</a>)</font></i></font></td><td><font size="-1">System Peripheral</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>DRXD</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA9_DRXD ">AT91C_PA9_DRXD </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 9</font></td><td><font size="-1">DBGU Debug Receive Data</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>DTXD</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA10_DTXD ">AT91C_PA10_DTXD </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 10</font></td><td><font size="-1">DBGU Debug Transmit Data</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_DBGU_CfgPIO">AT91F_DBGU_CfgPIO</a></b></font></td><td><font size="-1">Configure PIO controllers to drive DBGU signals</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM7S64_h.html#AT91F_DBGU_CfgPMC">AT91F_DBGU_CfgPMC</a></b></font></td><td><font size="-1">Enable Peripheral clock in PMC for DBGU</font></td></tr>
</null></table><br><br></null><a name="DBGU"></a><h2>DBGU Software API <i><font size="-1">(<a href="AT91SAM7S64_h.html#AT91S_DBGU">AT91S_DBGU</a>)</font></i></h2>
<a name="DBGU"></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_DBGU.html#DBGU_CR">DBGU_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="AT91SAM7S64_DBGU.html#DBGU_MR">DBGU_MR</a></font></td><td><font size="-1">Mode 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_DBGU.html#DBGU_IER">DBGU_IER</a></font></td><td><font size="-1">Interrupt Enable 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_DBGU.html#DBGU_IDR">DBGU_IDR</a></font></td><td><font size="-1">Interrupt Disable 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_DBGU.html#DBGU_IMR">DBGU_IMR</a></font></td><td><font size="-1">Interrupt Mask 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_DBGU.html#DBGU_CSR">DBGU_CSR</a></font></td><td><font size="-1">Channel Status 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_DBGU.html#DBGU_RHR">DBGU_RHR</a></font></td><td><font size="-1">Receiver Holding 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_DBGU.html#DBGU_THR">DBGU_THR</a></font></td><td><font size="-1">Transmitter Holding 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_DBGU.html#DBGU_BRGR">DBGU_BRGR</a></font></td><td><font size="-1">Baud Rate Generator Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x40</b></font></td><td><font size="-1"><a href="AT91SAM7S64_DBGU.html#DBGU_CIDR">DBGU_CIDR</a></font></td><td><font size="-1">Chip ID Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x44</b></font></td><td><font size="-1"><a href="AT91SAM7S64_DBGU.html#DBGU_EXID">DBGU_EXID</a></font></td><td><font size="-1">Chip ID Extension Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x48</b></font></td><td><font size="-1"><a href="AT91SAM7S64_DBGU.html#DBGU_FNTR">DBGU_FNTR</a></font></td><td><font size="-1">Force NTRST Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x100</b></font></td><td><font size="-1">DBGU_RPR (<a href="#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">DBGU_RCR (<a href="#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">DBGU_TPR (<a href="#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">DBGU_TCR (<a href="#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">DBGU_RNPR (<a href="#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">DBGU_RNCR (<a href="#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">DBGU_TNPR (<a href="#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">DBGU_TNCR (<a href="#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">DBGU_PTCR (<a href="#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">DBGU_PTSR (<a href="#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_DBGU_GetInterruptMaskStatus">AT91F_DBGU_GetInterruptMaskStatus</a></b></font></td><td><font size="-1">Return DBGU Interrupt Mask Status</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM7S64_h.html#AT91F_DBGU_InterruptDisable">AT91F_DBGU_InterruptDisable</a></b></font></td><td><font size="-1">Disable DBGU Interrupt</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM7S64_h.html#AT91F_DBGU_IsInterruptMasked">AT91F_DBGU_IsInterruptMasked</a></b></font></td><td><font size="-1">Test if DBGU Interrupt is Masked </font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM7S64_h.html#AT91F_DBGU_InterruptEnable">AT91F_DBGU_InterruptEnable</a></b></font></td><td><font size="-1">Enable DBGU Interrupt</font></td></tr>
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