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<div id="projectbrief">This document shows Ameba SDK 4.0 APIs</div>
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<div class="title">i2s_api.h File Reference</div> </div>
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<div class="contents">
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<p>This file provides following mbed I2S API.
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include "device.h"</code><br />
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<code>#include "ameba_soc.h"</code><br />
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</div><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr><td colspan="2"><div class="groupHeader">Ameba1 Only</div></td></tr>
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<tr class="memitem:ga64b640f74cd24fa1686a0345cbd6b321"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#ga64b640f74cd24fa1686a0345cbd6b321">i2s_init</a> (i2s_t *obj, PinName sck, PinName ws, PinName sd)</td></tr>
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<tr class="memdesc:ga64b640f74cd24fa1686a0345cbd6b321"><td class="mdescLeft"> </td><td class="mdescRight">Initializes the I2S device, include clock/function/interrupt/I2S registers. <a href="group__i2s.html#ga64b640f74cd24fa1686a0345cbd6b321">More...</a><br /></td></tr>
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<tr class="separator:ga64b640f74cd24fa1686a0345cbd6b321"><td class="memSeparator" colspan="2"> </td></tr>
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<tr><td colspan="2"><div class="groupHeader">AmebaZ Only</div></td></tr>
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<tr class="memitem:gadc1fff20e8cde565f4d3e19c43de138a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#gadc1fff20e8cde565f4d3e19c43de138a">i2s_init</a> (i2s_t *obj, PinName sck, PinName ws, PinName sd_tx, PinName sd_rx, PinName mck)</td></tr>
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<tr class="memdesc:gadc1fff20e8cde565f4d3e19c43de138a"><td class="mdescLeft"> </td><td class="mdescRight">Initializes the I2S device, include clock/function/interrupt/I2S registers. <a href="group__i2s.html#gadc1fff20e8cde565f4d3e19c43de138a">More...</a><br /></td></tr>
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<tr class="separator:gadc1fff20e8cde565f4d3e19c43de138a"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
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Ameba Common</h2></td></tr>
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<tr class="memitem:ga61dadd085c1777f559549e05962b2c9e"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga61dadd085c1777f559549e05962b2c9e"></a>enum  </td><td class="memItemRight" valign="bottom">{ <br />
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  <b>SR_8KHZ</b> = I2S_SR_8KHZ,
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<b>SR_16KHZ</b> = I2S_SR_16KHZ,
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<b>SR_24KHZ</b> = I2S_SR_24KHZ,
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<b>SR_32KHZ</b> = I2S_SR_32KHZ,
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<br />
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  <b>SR_48KHZ</b> = I2S_SR_48KHZ,
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<b>SR_96KHZ</b> = I2S_SR_96KHZ,
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<b>SR_7p35KHZ</b> = I2S_SR_7p35KHZ,
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<b>SR_14p7KHZ</b> = I2S_SR_14p7KHZ,
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<br />
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  <b>SR_22p05KHZ</b> = I2S_SR_22p05KHZ,
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<b>SR_29p4KHZ</b> = I2S_SR_29p4KHZ,
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<b>SR_44p1KHZ</b> = I2S_SR_44p1KHZ,
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<b>SR_88p2KHZ</b> = I2S_SR_88p2KHZ
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<br />
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}</td></tr>
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<tr class="separator:ga61dadd085c1777f559549e05962b2c9e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga726ca809ffd3d67ab4b8476646f26635"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga726ca809ffd3d67ab4b8476646f26635"></a>enum  </td><td class="memItemRight" valign="bottom">{ <b>CH_STEREO</b> = I2S_CH_STEREO,
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<b>CH_MONO</b> = I2S_CH_MONO
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}</td></tr>
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<tr class="separator:ga726ca809ffd3d67ab4b8476646f26635"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga0411cd49bb5b71852cecd93bcbf0ca2d"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga0411cd49bb5b71852cecd93bcbf0ca2d"></a>enum  </td><td class="memItemRight" valign="bottom">{ <b>WL_16b</b> = I2S_WL_16,
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<b>WL_24b</b> = I2S_WL_24
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}</td></tr>
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<tr class="separator:ga0411cd49bb5b71852cecd93bcbf0ca2d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gabed82baf7f470b522273a3e37c24c600"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gabed82baf7f470b522273a3e37c24c600"></a>enum  </td><td class="memItemRight" valign="bottom">{ <b>I2S_DIR_RX</b> = I2S_ONLY_RX,
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<b>I2S_DIR_TX</b> = I2S_ONLY_TX,
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<b>I2S_DIR_TXRX</b> = I2S_TXRX
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}</td></tr>
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<tr class="separator:gabed82baf7f470b522273a3e37c24c600"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga1dce5ac8f29993c9f64379fe9e546159"><td class="memItemLeft" align="right" valign="top">
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typedef void(* </td><td class="memItemRight" valign="bottom"><b>i2s_irq_handler</b>) (uint32_t id, char *pbuf)</td></tr>
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<tr class="separator:ga1dce5ac8f29993c9f64379fe9e546159"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga6642a1e40fe8f355e221ac21cf04dfd6"><td class="memItemLeft" align="right" valign="top">
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typedef struct i2s_s </td><td class="memItemRight" valign="bottom"><b>i2s_t</b></td></tr>
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<tr class="separator:ga6642a1e40fe8f355e221ac21cf04dfd6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga321e0dcc5b8c1e84d9100446721f1a31"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#ga321e0dcc5b8c1e84d9100446721f1a31">i2s_deinit</a> (i2s_t *obj)</td></tr>
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<tr class="memdesc:ga321e0dcc5b8c1e84d9100446721f1a31"><td class="mdescLeft"> </td><td class="mdescRight">Deinitializes the I2S device, include function/interrupt/I2S registers. <a href="group__i2s.html#ga321e0dcc5b8c1e84d9100446721f1a31">More...</a><br /></td></tr>
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<tr class="separator:ga321e0dcc5b8c1e84d9100446721f1a31"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaac2ff4d602d4f65651de034b1c17b7b6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#gaac2ff4d602d4f65651de034b1c17b7b6">i2s_set_dma_buffer</a> (i2s_t *obj, char *tx_buf, char *rx_buf, uint32_t page_num, uint32_t page_size)</td></tr>
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<tr class="memdesc:gaac2ff4d602d4f65651de034b1c17b7b6"><td class="mdescLeft"> </td><td class="mdescRight">Sets page number, page size, page address. <a href="group__i2s.html#gaac2ff4d602d4f65651de034b1c17b7b6">More...</a><br /></td></tr>
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<tr class="separator:gaac2ff4d602d4f65651de034b1c17b7b6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaa1c150e5fa2de45f6c6a6fb238a0496b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#gaa1c150e5fa2de45f6c6a6fb238a0496b">i2s_tx_irq_handler</a> (i2s_t *obj, i2s_irq_handler handler, uint32_t id)</td></tr>
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<tr class="memdesc:gaa1c150e5fa2de45f6c6a6fb238a0496b"><td class="mdescLeft"> </td><td class="mdescRight">Sets TX interrupt handler. <a href="group__i2s.html#gaa1c150e5fa2de45f6c6a6fb238a0496b">More...</a><br /></td></tr>
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<tr class="separator:gaa1c150e5fa2de45f6c6a6fb238a0496b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga96ff405b0abff00bbcee9b82cb9c2cd7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#ga96ff405b0abff00bbcee9b82cb9c2cd7">i2s_rx_irq_handler</a> (i2s_t *obj, i2s_irq_handler handler, uint32_t id)</td></tr>
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<tr class="memdesc:ga96ff405b0abff00bbcee9b82cb9c2cd7"><td class="mdescLeft"> </td><td class="mdescRight">Sets RX interrupt handler. <a href="group__i2s.html#ga96ff405b0abff00bbcee9b82cb9c2cd7">More...</a><br /></td></tr>
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<tr class="separator:ga96ff405b0abff00bbcee9b82cb9c2cd7"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga215ab83c7bcd74a02fb968e4b58093c2"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#ga215ab83c7bcd74a02fb968e4b58093c2">i2s_set_direction</a> (i2s_t *obj, int trx_type)</td></tr>
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<tr class="memdesc:ga215ab83c7bcd74a02fb968e4b58093c2"><td class="mdescLeft"> </td><td class="mdescRight">Sets i2s data transfer direction. <a href="group__i2s.html#ga215ab83c7bcd74a02fb968e4b58093c2">More...</a><br /></td></tr>
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<tr class="separator:ga215ab83c7bcd74a02fb968e4b58093c2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga4110092c5664a7807d7f3f3208acab0f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#ga4110092c5664a7807d7f3f3208acab0f">i2s_set_param</a> (i2s_t *obj, int channel_num, int rate, int word_len)</td></tr>
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<tr class="memdesc:ga4110092c5664a7807d7f3f3208acab0f"><td class="mdescLeft"> </td><td class="mdescRight">Sets i2s channel number, sample rate, word length. <a href="group__i2s.html#ga4110092c5664a7807d7f3f3208acab0f">More...</a><br /></td></tr>
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<tr class="separator:ga4110092c5664a7807d7f3f3208acab0f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaee962b74efaa65f7bd0d3b897010367a"><td class="memItemLeft" align="right" valign="top">int * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#gaee962b74efaa65f7bd0d3b897010367a">i2s_get_tx_page</a> (i2s_t *obj)</td></tr>
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<tr class="memdesc:gaee962b74efaa65f7bd0d3b897010367a"><td class="mdescLeft"> </td><td class="mdescRight">Gets current tx page address. <a href="group__i2s.html#gaee962b74efaa65f7bd0d3b897010367a">More...</a><br /></td></tr>
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<tr class="separator:gaee962b74efaa65f7bd0d3b897010367a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gae1f067937d0622be9ce59ee3c4f52558"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#gae1f067937d0622be9ce59ee3c4f52558">i2s_send_page</a> (i2s_t *obj, uint32_t *pbuf)</td></tr>
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<tr class="memdesc:gae1f067937d0622be9ce59ee3c4f52558"><td class="mdescLeft"> </td><td class="mdescRight">Sets current tx page own by i2s. <a href="group__i2s.html#gae1f067937d0622be9ce59ee3c4f52558">More...</a><br /></td></tr>
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<tr class="separator:gae1f067937d0622be9ce59ee3c4f52558"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga29ee082ef52be9597fbe2dbbc07bacc6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#ga29ee082ef52be9597fbe2dbbc07bacc6">i2s_recv_page</a> (i2s_t *obj)</td></tr>
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<tr class="memdesc:ga29ee082ef52be9597fbe2dbbc07bacc6"><td class="mdescLeft"> </td><td class="mdescRight">Sets current rx page own by i2s. <a href="group__i2s.html#ga29ee082ef52be9597fbe2dbbc07bacc6">More...</a><br /></td></tr>
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<tr class="separator:ga29ee082ef52be9597fbe2dbbc07bacc6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga22890a58d7f933f95bcf336391486941"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#ga22890a58d7f933f95bcf336391486941">i2s_enable</a> (i2s_t *obj)</td></tr>
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<tr class="memdesc:ga22890a58d7f933f95bcf336391486941"><td class="mdescLeft"> </td><td class="mdescRight">Enable i2s interrupt and function. <a href="group__i2s.html#ga22890a58d7f933f95bcf336391486941">More...</a><br /></td></tr>
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<tr class="separator:ga22890a58d7f933f95bcf336391486941"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga91f12ce2864d78b46d95111b8de284c5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2s.html#ga91f12ce2864d78b46d95111b8de284c5">i2s_disable</a> (i2s_t *obj)</td></tr>
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<tr class="memdesc:ga91f12ce2864d78b46d95111b8de284c5"><td class="mdescLeft"> </td><td class="mdescRight">Disable i2s interrupt and function. <a href="group__i2s.html#ga91f12ce2864d78b46d95111b8de284c5">More...</a><br /></td></tr>
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<tr class="separator:ga91f12ce2864d78b46d95111b8de284c5"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>This file provides following mbed I2S API. </p>
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<p>mbed Microcontroller Library</p>
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<dl class="section author"><dt>Author</dt><dd></dd></dl>
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<dl class="section version"><dt>Version</dt><dd>V1.0.0 </dd></dl>
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<dl class="section attention"><dt>Attention</dt><dd></dd></dl>
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<p>Copyright (c) 2006-2013 ARM Limited</p>
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<p>Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at </p><pre class="fragment">http://www.apache.org/licenses/LICENSE-2.0
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</pre><p>Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. </p>
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</a> 1.8.11
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