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<h1>Serial Parallel Interface Peripheral</h1>
<null><a name="SPI0"></a><b>SPI0</b> <i><font size="-1">(<a href="AT91SAM7A3_h.html#AT91S_SPI">AT91S_SPI</a>)</font></i><b> 0xFFFE0000 </b><i><font size="-1">(<a href="AT91SAM7A3_h.html#AT91C_BASE_SPI0">AT91C_BASE_SPI0</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>11</b> </font></td><td><font size="-1"><i><font size="-1">(<a href="AT91SAM7A3_h.html#AT91C_ID_SPI0">AT91C_ID_SPI0</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>NPCS01</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA12_NPCS01 ">AT91C_PA12_NPCS01 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 12</font></td><td><font size="-1">SPI0 Peripheral Chip Select 1</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>MISO0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA15_MISO0 ">AT91C_PA15_MISO0 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 15</font></td><td><font size="-1">SPI0 Master In Slave</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS03</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA14_NPCS03 ">AT91C_PA14_NPCS03 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 14</font></td><td><font size="-1">SPI0 Peripheral Chip Select 3</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>SPCK0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA17_SPCK0 ">AT91C_PA17_SPCK0 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 17</font></td><td><font size="-1">SPI0 Serial Clock</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>MOSI0</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA16_MOSI0 ">AT91C_PA16_MOSI0 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 16</font></td><td><font size="-1">SPI0 Master Out Slave</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS02</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA13_NPCS02 ">AT91C_PA13_NPCS02 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 13</font></td><td><font size="-1">SPI0 Peripheral Chip Select 2</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS00</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA11_NPCS00 ">AT91C_PA11_NPCS00 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: A Bit: 11</font></td><td><font size="-1">SPI0 Peripheral Chip Select 0</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_AT91SAM7A3_h.html#AT91F_SPI0_CfgPMC">AT91F_SPI0_CfgPMC</a></b></font></td><td><font size="-1">Enable Peripheral clock in PMC for SPI0</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM7A3_h.html#AT91F_SPI0_CfgPIO">AT91F_SPI0_CfgPIO</a></b></font></td><td><font size="-1">Configure PIO controllers to drive SPI0 signals</font></td></tr>
</null></table><br><br><a name="SPI1"></a><b>SPI1</b> <i><font size="-1">(<a href="AT91SAM7A3_h.html#AT91S_SPI">AT91S_SPI</a>)</font></i><b> 0xFFFE4000 </b><i><font size="-1">(<a href="AT91SAM7A3_h.html#AT91C_BASE_SPI1">AT91C_BASE_SPI1</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>12</b> </font></td><td><font size="-1"><i><font size="-1">(<a href="AT91SAM7A3_h.html#AT91C_ID_SPI1">AT91C_ID_SPI1</a>)</font></i></font></td><td><font size="-1">Serial Peripheral Interface 1</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>NPCS13</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA7_NPCS13 ">AT91C_PA7_NPCS13 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: B Bit: 7</font></td><td><font size="-1">SPI1 Peripheral Chip Select 3</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS13</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB21_NPCS13 ">AT91C_PB21_NPCS13 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOB">PIOB</a> Periph: B Bit: 21</font></td><td><font size="-1">SPI1 Peripheral Chip Select 3</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>SPCK1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA10_SPCK1 ">AT91C_PA10_SPCK1 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: B Bit: 10</font></td><td><font size="-1">SPI1 Serial Clock</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS10</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA4_NPCS10 ">AT91C_PA4_NPCS10 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: B Bit: 4</font></td><td><font size="-1">SPI1 Peripheral Chip Select 0</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>MISO1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA8_MISO1 ">AT91C_PA8_MISO1 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: B Bit: 8</font></td><td><font size="-1">SPI1 Master In Slave</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS11</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB19_NPCS11 ">AT91C_PB19_NPCS11 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOB">PIOB</a> Periph: B Bit: 19</font></td><td><font size="-1">SPI1 Peripheral Chip Select 1</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS11</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA5_NPCS11 ">AT91C_PA5_NPCS11 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: B Bit: 5</font></td><td><font size="-1">SPI1 Peripheral Chip Select 1</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS12</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PB20_NPCS12 ">AT91C_PB20_NPCS12 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOB">PIOB</a> Periph: B Bit: 20</font></td><td><font size="-1">SPI1 Peripheral Chip Select 2</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>NPCS12</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA6_NPCS12 ">AT91C_PA6_NPCS12 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: B Bit: 6</font></td><td><font size="-1">SPI1 Peripheral Chip Select 2</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b>MOSI1</b></font></td><td><font size="-1"><i><font size="-1">(<a href="#AT91C_PA9_MOSI1 ">AT91C_PA9_MOSI1 </a>)</font></i></font></td><td><font size="-1"><a href="#PIOA">PIOA</a> Periph: B Bit: 9</font></td><td><font size="-1">SPI1 Master Out Slave</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_AT91SAM7A3_h.html#AT91F_SPI1_CfgPMC">AT91F_SPI1_CfgPMC</a></b></font></td><td><font size="-1">Enable Peripheral clock in PMC for SPI1</font></td></tr>
<tr><td bgcolor="#FFFFCC"><font size="-1"><b><a href="lib_AT91SAM7A3_h.html#AT91F_SPI1_CfgPIO">AT91F_SPI1_CfgPIO</a></b></font></td><td><font size="-1">Configure PIO controllers to drive SPI1 signals</font></td></tr>
</null></table><br><br></null><a name="SPI"></a><h2>SPI Software API <i><font size="-1">(<a href="AT91SAM7A3_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="AT91SAM7A3_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="AT91SAM7A3_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="AT91SAM7A3_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="AT91SAM7A3_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="AT91SAM7A3_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="AT91SAM7A3_SPI.html#SPI_IER">SPI_IER</a></font></td><td><font size="-1">Interrupt Enable Register</font></td></tr>
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