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<h1>Serial Parallel Interface Peripheral</h1>
<null><a name="SPI"></a><b>SPI</b> <i><font size="-1">(<a href="AT91SAM7SE512_h.html#AT91S_SPI">AT91S_SPI</a>)</font></i><b> 0xFFFE0000 </b><i><font size="-1">(<a href="AT91SAM7SE512_h.html#AT91C_BASE_SPI">AT91C_BASE_SPI</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>5</b> </font></td><td><font size="-1"><i><font size="-1">(<a href="AT91SAM7SE512_h.html#AT91C_ID_SPI">AT91C_ID_SPI</a>)</font></i></font></td><td><font size="-1">Serial Peripheral Interface 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>NPCS0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA11_NPCS0 ">AT91C_PA11_NPCS0 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 11</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA31_NPCS1 ">AT91C_PA31_NPCS1 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 31</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PC14_NPCS1 ">AT91C_PC14_NPCS1 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOC">PIOC</a> Periph: B Bit: 14</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB9_NPCS1 ">AT91C_PB9_NPCS1 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOB">PIOB</a> Periph: A Bit: 9</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>MOSI</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA13_MOSI ">AT91C_PA13_MOSI </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 13</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS2</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB30_NPCS2 ">AT91C_PB30_NPCS2 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOB">PIOB</a> Periph: A Bit: 30</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS2</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB10_NPCS2 ">AT91C_PB10_NPCS2 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOB">PIOB</a> Periph: A Bit: 10</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS3</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB22_NPCS3 ">AT91C_PB22_NPCS3 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOB">PIOB</a> Periph: A Bit: 22</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS3</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB3_NPCS3 ">AT91C_PB3_NPCS3 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOB">PIOB</a> Periph: A Bit: 3</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS3</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB5_NPCS3 ">AT91C_PB5_NPCS3 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOB">PIOB</a> Periph: A Bit: 5</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>IRQ1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA30_IRQ1 ">AT91C_PA30_IRQ1 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 30</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>MISO</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA12_MISO ">AT91C_PA12_MISO </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 12</font></td><td><font size="-1"></font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>SPCK</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA14_SPCK ">AT91C_PA14_SPCK </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 14</font></td><td><font size="-1"></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_AT91SAM7SE512_h.html#AT91F_SPI_CfgPMC">AT91F_SPI_CfgPMC</a></b></font></td><td><font size="-1">Enable Peripheral clock in PMC for SPI</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM7SE512_h.html#AT91F_SPI_CfgPIO">AT91F_SPI_CfgPIO</a></b></font></td><td><font size="-1">Configure PIO controllers to drive SPI signals</font></td></tr>
</null></table><br><br></null><a name="SPI"></a><h2>SPI Software API <i><font size="-1">(<a href="AT91SAM7SE512_h.html#AT91S_SPI">AT91S_SPI</a>)</font></i></h2>
<a name="SPI"></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="AT91SAM7SE512_SPI.html#SPI_CR">SPI_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="AT91SAM7SE512_SPI.html#SPI_MR">SPI_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="AT91SAM7SE512_SPI.html#SPI_RDR">SPI_RDR</a></font></td><td><font size="-1">Receive Data Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0xC</b></font></td><td><font size="-1"><a href="AT91SAM7SE512_SPI.html#SPI_TDR">SPI_TDR</a></font></td><td><font size="-1">Transmit Data Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x10</b></font></td><td><font size="-1"><a href="AT91SAM7SE512_SPI.html#SPI_SR">SPI_SR</a></font></td><td><font size="-1">Status Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x14</b></font></td><td><font size="-1"><a href="AT91SAM7SE512_SPI.html#SPI_IER">SPI_IER</a></font></td><td><font size="-1">Interrupt Enable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x18</b></font></td><td><font size="-1"><a href="AT91SAM7SE512_SPI.html#SPI_IDR">SPI_IDR</a></font></td><td><font size="-1">Interrupt Disable Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x1C</b></font></td><td><font size="-1"><a href="AT91SAM7SE512_SPI.html#SPI_IMR">SPI_IMR</a></font></td><td><font size="-1">Interrupt Mask Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x30</b></font></td><td><font size="-1">SPI_CSR[4] (<a href="AT91SAM7SE512_SPI.html#SPI_CSR">SPI_CSR</a>)</font></td><td><font size="-1">Chip Select Register</font></td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC"><font size="-1"><b>0x100</b></font></td><td><font size="-1">SPI_RPR (<a href="AT91SAM7SE512_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">SPI_RCR (<a href="AT91SAM7SE512_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">SPI_TPR (<a href="AT91SAM7SE512_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">SPI_TCR (<a href="AT91SAM7SE512_PDC.html#PDC_TCR">PDC_TCR</a>)</font></td><td><font size="-1">Transmit Counter Register</font></td></tr>
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