<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x424</b></font></td><td><font size="-1">PIOA_IFDR (<a href="#PIO_IFDR">PIO_IFDR</a>)</font></td><td><font size="-1">Input Filter Disable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x428</b></font></td><td><font size="-1">PIOA_IFSR (<a href="#PIO_IFSR">PIO_IFSR</a>)</font></td><td><font size="-1">Input Filter Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x430</b></font></td><td><font size="-1">PIOA_SODR (<a href="#PIO_SODR">PIO_SODR</a>)</font></td><td><font size="-1">Set Output Data Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x434</b></font></td><td><font size="-1">PIOA_CODR (<a href="#PIO_CODR">PIO_CODR</a>)</font></td><td><font size="-1">Clear Output Data Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x438</b></font></td><td><font size="-1">PIOA_ODSR (<a href="#PIO_ODSR">PIO_ODSR</a>)</font></td><td><font size="-1">Output Data Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x43C</b></font></td><td><font size="-1">PIOA_PDSR (<a href="#PIO_PDSR">PIO_PDSR</a>)</font></td><td><font size="-1">Pin Data Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x440</b></font></td><td><font size="-1">PIOA_IER (<a href="#PIO_IER">PIO_IER</a>)</font></td><td><font size="-1">Interrupt Enable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x444</b></font></td><td><font size="-1">PIOA_IDR (<a href="#PIO_IDR">PIO_IDR</a>)</font></td><td><font size="-1">Interrupt Disable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x448</b></font></td><td><font size="-1">PIOA_IMR (<a href="#PIO_IMR">PIO_IMR</a>)</font></td><td><font size="-1">Interrupt Mask Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x44C</b></font></td><td><font size="-1">PIOA_ISR (<a href="#PIO_ISR">PIO_ISR</a>)</font></td><td><font size="-1">Interrupt Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x450</b></font></td><td><font size="-1">PIOA_MDER (<a href="#PIO_MDER">PIO_MDER</a>)</font></td><td><font size="-1">Multi-driver Enable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x454</b></font></td><td><font size="-1">PIOA_MDDR (<a href="#PIO_MDDR">PIO_MDDR</a>)</font></td><td><font size="-1">Multi-driver Disable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x458</b></font></td><td><font size="-1">PIOA_MDSR (<a href="#PIO_MDSR">PIO_MDSR</a>)</font></td><td><font size="-1">Multi-driver Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x460</b></font></td><td><font size="-1">PIOA_PPUDR (<a href="#PIO_PPUDR">PIO_PPUDR</a>)</font></td><td><font size="-1">Pull-up Disable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x464</b></font></td><td><font size="-1">PIOA_PPUER (<a href="#PIO_PPUER">PIO_PPUER</a>)</font></td><td><font size="-1">Pull-up Enable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x468</b></font></td><td><font size="-1">PIOA_PPUSR (<a href="#PIO_PPUSR">PIO_PPUSR</a>)</font></td><td><font size="-1">Pull-up Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x470</b></font></td><td><font size="-1">PIOA_ASR (<a href="#PIO_ASR">PIO_ASR</a>)</font></td><td><font size="-1">Select A Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x474</b></font></td><td><font size="-1">PIOA_BSR (<a href="#PIO_BSR">PIO_BSR</a>)</font></td><td><font size="-1">Select B Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x478</b></font></td><td><font size="-1">PIOA_ABSR (<a href="#PIO_ABSR">PIO_ABSR</a>)</font></td><td><font size="-1">AB Select Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x4A0</b></font></td><td><font size="-1">PIOA_OWER (<a href="#PIO_OWER">PIO_OWER</a>)</font></td><td><font size="-1">Output Write Enable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x4A4</b></font></td><td><font size="-1">PIOA_OWDR (<a href="#PIO_OWDR">PIO_OWDR</a>)</font></td><td><font size="-1">Output Write Disable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x4A8</b></font></td><td><font size="-1">PIOA_OWSR (<a href="#PIO_OWSR">PIO_OWSR</a>)</font></td><td><font size="-1">Output Write Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC00</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PMC.html#PMC_SCER">PMC_SCER</a></font></td><td><font size="-1">System Clock Enable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC04</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PMC.html#PMC_SCDR">PMC_SCDR</a></font></td><td><font size="-1">System Clock Disable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC08</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PMC.html#PMC_SCSR">PMC_SCSR</a></font></td><td><font size="-1">System Clock Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC10</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PMC.html#PMC_PCER">PMC_PCER</a></font></td><td><font size="-1">Peripheral Clock Enable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC14</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PMC.html#PMC_PCDR">PMC_PCDR</a></font></td><td><font size="-1">Peripheral Clock Disable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC18</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PMC.html#PMC_PCSR">PMC_PCSR</a></font></td><td><font size="-1">Peripheral Clock Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC20</b></font></td><td><font size="-1">PMC_MOR (<a href="AT91SAM7S64_CKGR.html#CKGR_MOR">CKGR_MOR</a>)</font></td><td><font size="-1">Main Oscillator Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC24</b></font></td><td><font size="-1">PMC_MCFR (<a href="AT91SAM7S64_CKGR.html#CKGR_MCFR">CKGR_MCFR</a>)</font></td><td><font size="-1">Main Clock  Frequency Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC2C</b></font></td><td><font size="-1">PMC_PLLR (<a href="AT91SAM7S64_CKGR.html#CKGR_PLLR">CKGR_PLLR</a>)</font></td><td><font size="-1">PLL Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC30</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PMC.html#PMC_MCKR">PMC_MCKR</a></font></td><td><font size="-1">Master Clock Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC40</b></font></td><td><font size="-1">PMC_PCKR[3] (<a href="AT91SAM7S64_PMC.html#PMC_PCKR">PMC_PCKR</a>)</font></td><td><font size="-1">Programmable Clock Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC60</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PMC.html#PMC_IER">PMC_IER</a></font></td><td><font size="-1">Interrupt Enable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC64</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PMC.html#PMC_IDR">PMC_IDR</a></font></td><td><font size="-1">Interrupt Disable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC68</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PMC.html#PMC_SR">PMC_SR</a></font></td><td><font size="-1">Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC6C</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PMC.html#PMC_IMR">PMC_IMR</a></font></td><td><font size="-1">Interrupt Mask Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD00</b></font></td><td><font size="-1"><a href="AT91SAM7S64_RSTC.html#RSTC_RCR">RSTC_RCR</a></font></td><td><font size="-1">Reset Control Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD04</b></font></td><td><font size="-1"><a href="AT91SAM7S64_RSTC.html#RSTC_RSR">RSTC_RSR</a></font></td><td><font size="-1">Reset Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD08</b></font></td><td><font size="-1"><a href="AT91SAM7S64_RSTC.html#RSTC_RMR">RSTC_RMR</a></font></td><td><font size="-1">Reset Mode Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD20</b></font></td><td><font size="-1"><a href="AT91SAM7S64_RTTC.html#RTTC_RTMR">RTTC_RTMR</a></font></td><td><font size="-1">Real-time Mode Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD24</b></font></td><td><font size="-1"><a href="AT91SAM7S64_RTTC.html#RTTC_RTAR">RTTC_RTAR</a></font></td><td><font size="-1">Real-time Alarm Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD28</b></font></td><td><font size="-1"><a href="AT91SAM7S64_RTTC.html#RTTC_RTVR">RTTC_RTVR</a></font></td><td><font size="-1">Real-time Value Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD2C</b></font></td><td><font size="-1"><a href="AT91SAM7S64_RTTC.html#RTTC_RTSR">RTTC_RTSR</a></font></td><td><font size="-1">Real-time Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD30</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PITC.html#PITC_PIMR">PITC_PIMR</a></font></td><td><font size="-1">Period Interval Mode Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD34</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PITC.html#PITC_PISR">PITC_PISR</a></font></td><td><font size="-1">Period Interval Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD38</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PITC.html#PITC_PIVR">PITC_PIVR</a></font></td><td><font size="-1">Period Interval Value Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD3C</b></font></td><td><font size="-1"><a href="AT91SAM7S64_PITC.html#PITC_PIIR">PITC_PIIR</a></font></td><td><font size="-1">Period Interval Image Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD40</b></font></td><td><font size="-1"><a href="AT91SAM7S64_WDTC.html#WDTC_WDCR">WDTC_WDCR</a></font></td><td><font size="-1">Watchdog Control Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD44</b></font></td><td><font size="-1"><a href="AT91SAM7S64_WDTC.html#WDTC_WDMR">WDTC_WDMR</a></font></td><td><font size="-1">Watchdog Mode Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD48</b></font></td><td><font size="-1"><a href="AT91SAM7S64_WDTC.html#WDTC_WDSR">WDTC_WDSR</a></font></td><td><font size="-1">Watchdog Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xD60</b></font></td><td><font size="-1"><a href="AT91SAM7S64_VREG.html#VREG_MR">VREG_MR</a></font></td><td><font size="-1">Voltage Regulator Mode Register</font></td></tr>
</null></table><br></null><h2>SYS Register Description</h2>
<null><a name="SYS_AIC"></a><h4><a href="#SYS">SYS</a>: <i><a href="AT91SAM7S64_h.html#AT91S_AIC">AT91S_AIC</a></i> SYS_AIC  <i>Advanced Interrupt Controller</i></h4><ul><null><font size="-2"><li><b>SYS</b> <i><a href="#AT91C_SYS_AIC">AT91C_SYS_AIC</a></i> 0xFFFFF000</font></null></ul><a name="SYS_DBGU"></a><h4><a href="#SYS">SYS</a>: <i><a href="AT91SAM7S64_h.html#AT91S_DBGU">AT91S_DBGU</a></i> SYS_DBGU  <i>Debug Unit</i></h4><ul><null><font size="-2"><li><b>SYS</b> <i><a href="#AT91C_SYS_DBGU">AT91C_SYS_DBGU</a></i> 0xFFFFF200</font></null></ul><a name="SYS_PIOA"></a><h4><a href="#SYS">SYS</a>: <i><a href="AT91SAM7S64_h.html#AT91S_PIO">AT91S_PIO</a></i> SYS_PIOA  <i>PIO A Controller</i></h4><ul><null><font size="-2"><li><b>SYS</b> <i><a href="#AT91C_SYS_PIOA">AT91C_SYS_PIOA</a></i> 0xFFFFF400</font></null></ul><a name="SYS_PMC"></a><h4><a href="#SYS">SYS</a>: <i><a href="AT91SAM7S64_h.html#AT91S_PMC">AT91S_PMC</a></i> SYS_PMC  <i>Power Management Controller</i></h4><ul><null><font size="-2"><li><b>SYS</b> <i><a href="#AT91C_SYS_PMC">AT91C_SYS_PMC</a></i> 0xFFFFFC00</font></null></ul><a name="SYS_RSTC"></a><h4><a href="#SYS">SYS</a>: <i><a href="AT91SAM7S64_h.html#AT91S_RSTC">AT91S_RSTC</a></i> SYS_RSTC  <i>Reset Controller</i></h4><ul><null><font size="-2"><li><b>SYS</b> <i><a href="#AT91C_SYS_RSTC">AT91C_SYS_RSTC</a></i> 0xFFFFFD00</font></null></ul><a name="SYS_RTTC"></a><h4><a href="#SYS">SYS</a>: <i><a href="AT91SAM7S64_h.html#AT91S_RTTC">AT91S_RTTC</a></i> SYS_RTTC  <i>Real Time Timer Controller</i></h4><ul><null><font size="-2"><li><b>SYS</b> <i><a href="#AT91C_SYS_RTTC">AT91C_SYS_RTTC</a></i> 0xFFFFFD20</font></null></ul><a name="SYS_PITC"></a><h4><a href="#SYS">SYS</a>: <i><a href="AT91SAM7S64_h.html#AT91S_PITC">AT91S_PITC</a></i> SYS_PITC  <i>Periodic Interval Timer Controller</i></h4><ul><null><font size="-2"><li><b>SYS</b> <i><a href="#AT91C_SYS_PITC">AT91C_SYS_PITC</a></i> 0xFFFFFD30</font></null></ul><a name="SYS_WDTC"></a><h4><a href="#SYS">SYS</a>: <i><a href="AT91SAM7S64_h.html#AT91S_WDTC">AT91S_WDTC</a></i> SYS_WDTC  <i>Watchdog Timer Controller</i></h4><ul><null><font size="-2"><li><b>SYS</b> <i><a href="#AT91C_SYS_WDTC">AT91C_SYS_WDTC</a></i> 0xFFFFFD40</font></null></ul><a name="SYS_VREG"></a><h4><a href="#SYS">SYS</a>: <i><a href="AT91SAM7S64_h.html#AT91S_VREG">AT91S_VREG</a></i> SYS_VREG  <i>Voltage Regulator Mode Register</i></h4><ul><null><font size="-2"><li><b>SYS</b> <i><a href="#AT91C_SYS_VREG">AT91C_SYS_VREG</a></i> 0xFFFFFD60</font></null></ul></null><hr></html>