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706 lines
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<div class="title">FlexIO eDMA I2S Driver<div class="ingroups"><a class="el" href="a00032.html">FlexIO I2S Driver</a></div></div> </div>
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<a name="details" id="details"></a><h2 class="groupheader">Overview</h2>
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Data Structures</h2></td></tr>
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<tr class="memitem:a00393"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#a00393">_flexio_i2s_edma_handle</a></td></tr>
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<tr class="memdesc:a00393"><td class="mdescLeft"> </td><td class="mdescRight">FlexIO I2S DMA transfer handle, users should not touch the content of the handle. <a href="a00033.html#a00393">More...</a><br/></td></tr>
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Typedefs</h2></td></tr>
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<tr class="memitem:gac8ad14418234f5c3f326cad96b2c72d2"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gac8ad14418234f5c3f326cad96b2c72d2"></a>
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typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#gac8ad14418234f5c3f326cad96b2c72d2">flexio_i2s_edma_callback_t</a> )(<a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> *base, <a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> *handle, <a class="el" href="a00272.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> status, void *userData)</td></tr>
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<tr class="memdesc:gac8ad14418234f5c3f326cad96b2c72d2"><td class="mdescLeft"> </td><td class="mdescRight">FlexIO I2S eDMA transfer callback function for finish and error. <br/></td></tr>
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<tr class="separator:gac8ad14418234f5c3f326cad96b2c72d2"><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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Driver version</h2></td></tr>
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<tr class="memitem:gaa43bc2ccc6c5bfc9c6a10fa1dc814dc5"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#gaa43bc2ccc6c5bfc9c6a10fa1dc814dc5">FSL_FLEXIO_I2S_EDMA_DRIVER_VERSION</a>   (<a class="el" href="a00272.html#ga812138aa3315b0c6953c1a26130bcc37">MAKE_VERSION</a>(2, 1, 7))</td></tr>
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<tr class="memdesc:gaa43bc2ccc6c5bfc9c6a10fa1dc814dc5"><td class="mdescLeft"> </td><td class="mdescRight">FlexIO I2S EDMA driver version 2.1.7. <a href="#gaa43bc2ccc6c5bfc9c6a10fa1dc814dc5">More...</a><br/></td></tr>
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<tr class="separator:gaa43bc2ccc6c5bfc9c6a10fa1dc814dc5"><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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eDMA Transactional</h2></td></tr>
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<tr class="memitem:ga0a064c3820e9d9cb89b322f44254129b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#ga0a064c3820e9d9cb89b322f44254129b">FLEXIO_I2S_TransferTxCreateHandleEDMA</a> (<a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> *base, <a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> *handle, <a class="el" href="a00033.html#gac8ad14418234f5c3f326cad96b2c72d2">flexio_i2s_edma_callback_t</a> callback, void *userData, <a class="el" href="a00022.html#ga00acb9562f35755920b20fde1bc9973e">edma_handle_t</a> *dmaHandle)</td></tr>
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<tr class="memdesc:ga0a064c3820e9d9cb89b322f44254129b"><td class="mdescLeft"> </td><td class="mdescRight">Initializes the FlexIO I2S eDMA handle. <a href="#ga0a064c3820e9d9cb89b322f44254129b">More...</a><br/></td></tr>
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<tr class="separator:ga0a064c3820e9d9cb89b322f44254129b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga46e255cc70f7da87ff82b9a1c376d26c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#ga46e255cc70f7da87ff82b9a1c376d26c">FLEXIO_I2S_TransferRxCreateHandleEDMA</a> (<a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> *base, <a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> *handle, <a class="el" href="a00033.html#gac8ad14418234f5c3f326cad96b2c72d2">flexio_i2s_edma_callback_t</a> callback, void *userData, <a class="el" href="a00022.html#ga00acb9562f35755920b20fde1bc9973e">edma_handle_t</a> *dmaHandle)</td></tr>
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<tr class="memdesc:ga46e255cc70f7da87ff82b9a1c376d26c"><td class="mdescLeft"> </td><td class="mdescRight">Initializes the FlexIO I2S Rx eDMA handle. <a href="#ga46e255cc70f7da87ff82b9a1c376d26c">More...</a><br/></td></tr>
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<tr class="separator:ga46e255cc70f7da87ff82b9a1c376d26c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaea6d35cc631a51dbadca239bb0c59478"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#gaea6d35cc631a51dbadca239bb0c59478">FLEXIO_I2S_TransferSetFormatEDMA</a> (<a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> *base, <a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> *handle, <a class="el" href="a00032.html#ga59a1d4e10fda508bc6872a65c72a4234">flexio_i2s_format_t</a> *format, uint32_t srcClock_Hz)</td></tr>
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<tr class="memdesc:gaea6d35cc631a51dbadca239bb0c59478"><td class="mdescLeft"> </td><td class="mdescRight">Configures the FlexIO I2S Tx audio format. <a href="#gaea6d35cc631a51dbadca239bb0c59478">More...</a><br/></td></tr>
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<tr class="separator:gaea6d35cc631a51dbadca239bb0c59478"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gab9611613f8b7e9b2d4da51d709db661e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00272.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#gab9611613f8b7e9b2d4da51d709db661e">FLEXIO_I2S_TransferSendEDMA</a> (<a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> *base, <a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> *handle, <a class="el" href="a00032.html#gac75d826cfb18663febe134757abe38b4">flexio_i2s_transfer_t</a> *xfer)</td></tr>
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<tr class="memdesc:gab9611613f8b7e9b2d4da51d709db661e"><td class="mdescLeft"> </td><td class="mdescRight">Performs a non-blocking FlexIO I2S transfer using DMA. <a href="#gab9611613f8b7e9b2d4da51d709db661e">More...</a><br/></td></tr>
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<tr class="separator:gab9611613f8b7e9b2d4da51d709db661e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga440a4f8f9a6d859f2c8078d5209e74ad"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00272.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#ga440a4f8f9a6d859f2c8078d5209e74ad">FLEXIO_I2S_TransferReceiveEDMA</a> (<a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> *base, <a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> *handle, <a class="el" href="a00032.html#gac75d826cfb18663febe134757abe38b4">flexio_i2s_transfer_t</a> *xfer)</td></tr>
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<tr class="memdesc:ga440a4f8f9a6d859f2c8078d5209e74ad"><td class="mdescLeft"> </td><td class="mdescRight">Performs a non-blocking FlexIO I2S receive using eDMA. <a href="#ga440a4f8f9a6d859f2c8078d5209e74ad">More...</a><br/></td></tr>
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<tr class="separator:ga440a4f8f9a6d859f2c8078d5209e74ad"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga965a1f1fb9a4bea6808afb4d060121d2"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#ga965a1f1fb9a4bea6808afb4d060121d2">FLEXIO_I2S_TransferAbortSendEDMA</a> (<a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> *base, <a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> *handle)</td></tr>
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<tr class="memdesc:ga965a1f1fb9a4bea6808afb4d060121d2"><td class="mdescLeft"> </td><td class="mdescRight">Aborts a FlexIO I2S transfer using eDMA. <a href="#ga965a1f1fb9a4bea6808afb4d060121d2">More...</a><br/></td></tr>
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<tr class="separator:ga965a1f1fb9a4bea6808afb4d060121d2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga8dfa5e3058760202f87d2ff01fca285a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#ga8dfa5e3058760202f87d2ff01fca285a">FLEXIO_I2S_TransferAbortReceiveEDMA</a> (<a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> *base, <a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> *handle)</td></tr>
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<tr class="memdesc:ga8dfa5e3058760202f87d2ff01fca285a"><td class="mdescLeft"> </td><td class="mdescRight">Aborts a FlexIO I2S receive using eDMA. <a href="#ga8dfa5e3058760202f87d2ff01fca285a">More...</a><br/></td></tr>
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<tr class="separator:ga8dfa5e3058760202f87d2ff01fca285a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga866f520fa4d5b421700563ddbe28b375"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00272.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#ga866f520fa4d5b421700563ddbe28b375">FLEXIO_I2S_TransferGetSendCountEDMA</a> (<a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> *base, <a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> *handle, size_t *count)</td></tr>
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<tr class="memdesc:ga866f520fa4d5b421700563ddbe28b375"><td class="mdescLeft"> </td><td class="mdescRight">Gets the remaining bytes to be sent. <a href="#ga866f520fa4d5b421700563ddbe28b375">More...</a><br/></td></tr>
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<tr class="separator:ga866f520fa4d5b421700563ddbe28b375"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gabbeb9ad1ffd98e0a371cfa14d513d8d1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00272.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#gabbeb9ad1ffd98e0a371cfa14d513d8d1">FLEXIO_I2S_TransferGetReceiveCountEDMA</a> (<a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> *base, <a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> *handle, size_t *count)</td></tr>
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<tr class="memdesc:gabbeb9ad1ffd98e0a371cfa14d513d8d1"><td class="mdescLeft"> </td><td class="mdescRight">Get the remaining bytes to be received. <a href="#gabbeb9ad1ffd98e0a371cfa14d513d8d1">More...</a><br/></td></tr>
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<tr class="separator:gabbeb9ad1ffd98e0a371cfa14d513d8d1"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<hr/><h2 class="groupheader">Data Structure Documentation</h2>
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<a name="a00393" id="a00393"></a>
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<td class="memname">struct _flexio_i2s_edma_handle</td>
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</div><div class="memdoc">
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<div class="textblock"></div><table class="memberdecls">
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<tr><td colspan="2"><h3>Data Fields</h3></td></tr>
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<tr class="memitem:a3f65d1b94c07b14fb29fa83ad7ebddae"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3f65d1b94c07b14fb29fa83ad7ebddae"></a>
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<a class="el" href="a00022.html#ga00acb9562f35755920b20fde1bc9973e">edma_handle_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#a3f65d1b94c07b14fb29fa83ad7ebddae">dmaHandle</a></td></tr>
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<tr class="memdesc:a3f65d1b94c07b14fb29fa83ad7ebddae"><td class="mdescLeft"> </td><td class="mdescRight">DMA handler for FlexIO I2S send. <br/></td></tr>
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<tr class="memitem:afd0695c3ec5acfd3bdd9792deb3415e6"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="afd0695c3ec5acfd3bdd9792deb3415e6"></a>
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uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#afd0695c3ec5acfd3bdd9792deb3415e6">bytesPerFrame</a></td></tr>
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<tr class="memdesc:afd0695c3ec5acfd3bdd9792deb3415e6"><td class="mdescLeft"> </td><td class="mdescRight">Bytes in a frame. <br/></td></tr>
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<tr class="separator:afd0695c3ec5acfd3bdd9792deb3415e6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a78dcdba57cf5066213ea461457dffcb6"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#a78dcdba57cf5066213ea461457dffcb6">nbytes</a></td></tr>
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<tr class="memdesc:a78dcdba57cf5066213ea461457dffcb6"><td class="mdescLeft"> </td><td class="mdescRight">eDMA minor byte transfer count initially configured. <a href="#a78dcdba57cf5066213ea461457dffcb6">More...</a><br/></td></tr>
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<tr class="separator:a78dcdba57cf5066213ea461457dffcb6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:abaf1edffa9f9b13aa76524f0551ae629"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="abaf1edffa9f9b13aa76524f0551ae629"></a>
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uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#abaf1edffa9f9b13aa76524f0551ae629">state</a></td></tr>
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<tr class="memdesc:abaf1edffa9f9b13aa76524f0551ae629"><td class="mdescLeft"> </td><td class="mdescRight">Internal state for FlexIO I2S eDMA transfer. <br/></td></tr>
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<tr class="separator:abaf1edffa9f9b13aa76524f0551ae629"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a8013ebccbc10e5693c58b7b51e18b635"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8013ebccbc10e5693c58b7b51e18b635"></a>
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<a class="el" href="a00033.html#gac8ad14418234f5c3f326cad96b2c72d2">flexio_i2s_edma_callback_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#a8013ebccbc10e5693c58b7b51e18b635">callback</a></td></tr>
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<tr class="memdesc:a8013ebccbc10e5693c58b7b51e18b635"><td class="mdescLeft"> </td><td class="mdescRight">Callback for users while transfer finish or error occurred. <br/></td></tr>
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<tr class="separator:a8013ebccbc10e5693c58b7b51e18b635"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa71c4ede5f0350a9fbac67e58afb4d9d"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa71c4ede5f0350a9fbac67e58afb4d9d"></a>
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void * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#aa71c4ede5f0350a9fbac67e58afb4d9d">userData</a></td></tr>
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<tr class="memdesc:aa71c4ede5f0350a9fbac67e58afb4d9d"><td class="mdescLeft"> </td><td class="mdescRight">User callback parameter. <br/></td></tr>
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<tr class="separator:aa71c4ede5f0350a9fbac67e58afb4d9d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ac283a3b680eaf59122b3456035a8164d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00022.html#gacff054f9816fb678fc49f5e66a4d7649">edma_tcd_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#ac283a3b680eaf59122b3456035a8164d">tcd</a> [<a class="el" href="a00032.html#ga16823ec3547c940091b4eccc87fb5847">FLEXIO_I2S_XFER_QUEUE_SIZE</a>+1U]</td></tr>
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<tr class="memdesc:ac283a3b680eaf59122b3456035a8164d"><td class="mdescLeft"> </td><td class="mdescRight">TCD pool for eDMA transfer. <a href="#ac283a3b680eaf59122b3456035a8164d">More...</a><br/></td></tr>
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<tr class="separator:ac283a3b680eaf59122b3456035a8164d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a2280c1dc77e28686dfbe584a5e128f46"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00032.html#gac75d826cfb18663febe134757abe38b4">flexio_i2s_transfer_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#a2280c1dc77e28686dfbe584a5e128f46">queue</a> [<a class="el" href="a00032.html#ga16823ec3547c940091b4eccc87fb5847">FLEXIO_I2S_XFER_QUEUE_SIZE</a>]</td></tr>
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<tr class="memdesc:a2280c1dc77e28686dfbe584a5e128f46"><td class="mdescLeft"> </td><td class="mdescRight">Transfer queue storing queued transfer. <a href="#a2280c1dc77e28686dfbe584a5e128f46">More...</a><br/></td></tr>
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<tr class="separator:a2280c1dc77e28686dfbe584a5e128f46"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a0c2e243abfed0ecca4c7b5a512a69f62"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0c2e243abfed0ecca4c7b5a512a69f62"></a>
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size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#a0c2e243abfed0ecca4c7b5a512a69f62">transferSize</a> [<a class="el" href="a00032.html#ga16823ec3547c940091b4eccc87fb5847">FLEXIO_I2S_XFER_QUEUE_SIZE</a>]</td></tr>
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<tr class="memdesc:a0c2e243abfed0ecca4c7b5a512a69f62"><td class="mdescLeft"> </td><td class="mdescRight">Data bytes need to transfer. <br/></td></tr>
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<tr class="separator:a0c2e243abfed0ecca4c7b5a512a69f62"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a402c6b4542c7edae50a9741406cec231"><td class="memItemLeft" align="right" valign="top">volatile uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#a402c6b4542c7edae50a9741406cec231">queueUser</a></td></tr>
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<tr class="memdesc:a402c6b4542c7edae50a9741406cec231"><td class="mdescLeft"> </td><td class="mdescRight">Index for user to queue transfer. <a href="#a402c6b4542c7edae50a9741406cec231">More...</a><br/></td></tr>
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<tr class="separator:a402c6b4542c7edae50a9741406cec231"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:abb2aa0af51c8b0bea6b19560ec8ba00b"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="abb2aa0af51c8b0bea6b19560ec8ba00b"></a>
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volatile uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="a00033.html#abb2aa0af51c8b0bea6b19560ec8ba00b">queueDriver</a></td></tr>
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<tr class="memdesc:abb2aa0af51c8b0bea6b19560ec8ba00b"><td class="mdescLeft"> </td><td class="mdescRight">Index for driver to get the transfer data and size. <br/></td></tr>
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<tr class="separator:abb2aa0af51c8b0bea6b19560ec8ba00b"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<h4 class="groupheader">Field Documentation</h4>
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<a class="anchor" id="a78dcdba57cf5066213ea461457dffcb6"></a>
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<td class="memname">uint8_t _flexio_i2s_edma_handle::nbytes</td>
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</div><div class="memdoc">
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</div>
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<a class="anchor" id="ac283a3b680eaf59122b3456035a8164d"></a>
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<tr>
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<td class="memname"><a class="el" href="a00022.html#gacff054f9816fb678fc49f5e66a4d7649">edma_tcd_t</a> _flexio_i2s_edma_handle::tcd[<a class="el" href="a00032.html#ga16823ec3547c940091b4eccc87fb5847">FLEXIO_I2S_XFER_QUEUE_SIZE</a>+1U]</td>
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</table>
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</div><div class="memdoc">
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</div>
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<a class="anchor" id="a2280c1dc77e28686dfbe584a5e128f46"></a>
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<td class="memname"><a class="el" href="a00032.html#gac75d826cfb18663febe134757abe38b4">flexio_i2s_transfer_t</a> _flexio_i2s_edma_handle::queue[<a class="el" href="a00032.html#ga16823ec3547c940091b4eccc87fb5847">FLEXIO_I2S_XFER_QUEUE_SIZE</a>]</td>
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</div><div class="memdoc">
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</div>
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<a class="anchor" id="a402c6b4542c7edae50a9741406cec231"></a>
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<td class="memname">volatile uint8_t _flexio_i2s_edma_handle::queueUser</td>
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</table>
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</div><div class="memdoc">
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</div>
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</div>
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<h2 class="groupheader">Macro Definition Documentation</h2>
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<a class="anchor" id="gaa43bc2ccc6c5bfc9c6a10fa1dc814dc5"></a>
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<td class="memname">#define FSL_FLEXIO_I2S_EDMA_DRIVER_VERSION   (<a class="el" href="a00272.html#ga812138aa3315b0c6953c1a26130bcc37">MAKE_VERSION</a>(2, 1, 7))</td>
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<h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="ga0a064c3820e9d9cb89b322f44254129b"></a>
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<td class="memname">void FLEXIO_I2S_TransferTxCreateHandleEDMA </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> * </td>
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<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00033.html#gac8ad14418234f5c3f326cad96b2c72d2">flexio_i2s_edma_callback_t</a> </td>
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<td class="paramname"><em>callback</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>userData</em>, </td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00022.html#ga00acb9562f35755920b20fde1bc9973e">edma_handle_t</a> * </td>
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<td class="paramname"><em>dmaHandle</em> </td>
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<td></td>
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<td>)</td>
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<p>This function initializes the FlexIO I2S master DMA handle which can be used for other FlexIO I2S master transactional APIs. Usually, for a specified FlexIO I2S instance, call this API once to get the initialized handle.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>FlexIO I2S peripheral base address. </td></tr>
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<tr><td class="paramname">handle</td><td>FlexIO I2S eDMA handle pointer. </td></tr>
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<tr><td class="paramname">callback</td><td>FlexIO I2S eDMA callback function called while finished a block. </td></tr>
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<tr><td class="paramname">userData</td><td>User parameter for callback. </td></tr>
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<tr><td class="paramname">dmaHandle</td><td>eDMA handle for FlexIO I2S. This handle is a static value allocated by users. </td></tr>
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<td class="memname">void FLEXIO_I2S_TransferRxCreateHandleEDMA </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> * </td>
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<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00033.html#gac8ad14418234f5c3f326cad96b2c72d2">flexio_i2s_edma_callback_t</a> </td>
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<td class="paramname"><em>callback</em>, </td>
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<td class="paramtype"><a class="el" href="a00022.html#ga00acb9562f35755920b20fde1bc9973e">edma_handle_t</a> * </td>
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<td class="paramname"><em>dmaHandle</em> </td>
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<p>This function initializes the FlexIO I2S slave DMA handle which can be used for other FlexIO I2S master transactional APIs. Usually, for a specified FlexIO I2S instance, call this API once to get the initialized handle.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>FlexIO I2S peripheral base address. </td></tr>
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<tr><td class="paramname">handle</td><td>FlexIO I2S eDMA handle pointer. </td></tr>
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<tr><td class="paramname">callback</td><td>FlexIO I2S eDMA callback function called while finished a block. </td></tr>
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<tr><td class="paramname">userData</td><td>User parameter for callback. </td></tr>
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<tr><td class="paramname">dmaHandle</td><td>eDMA handle for FlexIO I2S. This handle is a static value allocated by users. </td></tr>
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<td class="memname">void FLEXIO_I2S_TransferSetFormatEDMA </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> * </td>
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<td class="paramname"><em>handle</em>, </td>
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<td class="paramtype"><a class="el" href="a00032.html#ga59a1d4e10fda508bc6872a65c72a4234">flexio_i2s_format_t</a> * </td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>srcClock_Hz</em> </td>
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<p>Audio format can be changed in run-time of FlexIO I2S. This function configures the sample rate and audio data format to be transferred. This function also sets the eDMA parameter according to format.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>FlexIO I2S peripheral base address. </td></tr>
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<tr><td class="paramname">handle</td><td>FlexIO I2S eDMA handle pointer </td></tr>
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<tr><td class="paramname">format</td><td>Pointer to FlexIO I2S audio data format structure. </td></tr>
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<tr><td class="paramname">srcClock_Hz</td><td>FlexIO I2S clock source frequency in Hz, it should be 0 while in slave mode. </td></tr>
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<td class="memname"><a class="el" href="a00272.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> FLEXIO_I2S_TransferSendEDMA </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> * </td>
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<td class="paramname"><em>handle</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00032.html#gac75d826cfb18663febe134757abe38b4">flexio_i2s_transfer_t</a> * </td>
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<td class="paramname"><em>xfer</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<dl class="section note"><dt>Note</dt><dd>This interface returned immediately after transfer initiates. Users should call FLEXIO_I2S_GetTransferStatus to poll the transfer status and check whether the FlexIO I2S transfer is finished.</dd></dl>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>FlexIO I2S peripheral base address. </td></tr>
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<tr><td class="paramname">handle</td><td>FlexIO I2S DMA handle pointer. </td></tr>
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<tr><td class="paramname">xfer</td><td>Pointer to DMA transfer structure. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">kStatus_Success</td><td>Start a FlexIO I2S eDMA send successfully. </td></tr>
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<tr><td class="paramname">kStatus_InvalidArgument</td><td>The input arguments is invalid. </td></tr>
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<tr><td class="paramname">kStatus_TxBusy</td><td>FlexIO I2S is busy sending data. </td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<a class="anchor" id="ga440a4f8f9a6d859f2c8078d5209e74ad"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname"><a class="el" href="a00272.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> FLEXIO_I2S_TransferReceiveEDMA </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> * </td>
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<td class="paramname"><em>base</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> * </td>
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<td class="paramname"><em>handle</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00032.html#gac75d826cfb18663febe134757abe38b4">flexio_i2s_transfer_t</a> * </td>
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<td class="paramname"><em>xfer</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<dl class="section note"><dt>Note</dt><dd>This interface returned immediately after transfer initiates. Users should call FLEXIO_I2S_GetReceiveRemainingBytes to poll the transfer status and check whether the FlexIO I2S transfer is finished.</dd></dl>
|
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<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
|
<tr><td class="paramname">base</td><td>FlexIO I2S peripheral base address. </td></tr>
|
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<tr><td class="paramname">handle</td><td>FlexIO I2S DMA handle pointer. </td></tr>
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<tr><td class="paramname">xfer</td><td>Pointer to DMA transfer structure. </td></tr>
|
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
|
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<table class="retval">
|
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<tr><td class="paramname">kStatus_Success</td><td>Start a FlexIO I2S eDMA receive successfully. </td></tr>
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<tr><td class="paramname">kStatus_InvalidArgument</td><td>The input arguments is invalid. </td></tr>
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<tr><td class="paramname">kStatus_RxBusy</td><td>FlexIO I2S is busy receiving data. </td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<a class="anchor" id="ga965a1f1fb9a4bea6808afb4d060121d2"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void FLEXIO_I2S_TransferAbortSendEDMA </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> * </td>
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<td class="paramname"><em>base</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
|
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<td class="paramtype"><a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> * </td>
|
|
<td class="paramname"><em>handle</em> </td>
|
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</tr>
|
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
|
|
<tr><td class="paramname">base</td><td>FlexIO I2S peripheral base address. </td></tr>
|
|
<tr><td class="paramname">handle</td><td>FlexIO I2S DMA handle pointer. </td></tr>
|
|
</table>
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</dd>
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</dl>
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</div>
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</div>
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<a class="anchor" id="ga8dfa5e3058760202f87d2ff01fca285a"></a>
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<div class="memitem">
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<tr>
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<td class="memname">void FLEXIO_I2S_TransferAbortReceiveEDMA </td>
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<td>(</td>
|
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<td class="paramtype"><a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> * </td>
|
|
<td class="paramname"><em>base</em>, </td>
|
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</tr>
|
|
<tr>
|
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<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype"><a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> * </td>
|
|
<td class="paramname"><em>handle</em> </td>
|
|
</tr>
|
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<tr>
|
|
<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
|
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</table>
|
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</div><div class="memdoc">
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
|
<tr><td class="paramname">base</td><td>FlexIO I2S peripheral base address. </td></tr>
|
|
<tr><td class="paramname">handle</td><td>FlexIO I2S DMA handle pointer. </td></tr>
|
|
</table>
|
|
</dd>
|
|
</dl>
|
|
|
|
</div>
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</div>
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<a class="anchor" id="ga866f520fa4d5b421700563ddbe28b375"></a>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname"><a class="el" href="a00272.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> FLEXIO_I2S_TransferGetSendCountEDMA </td>
|
|
<td>(</td>
|
|
<td class="paramtype"><a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> * </td>
|
|
<td class="paramname"><em>base</em>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype"><a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> * </td>
|
|
<td class="paramname"><em>handle</em>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype">size_t * </td>
|
|
<td class="paramname"><em>count</em> </td>
|
|
</tr>
|
|
<tr>
|
|
<td></td>
|
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<td>)</td>
|
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<td></td><td></td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
|
<tr><td class="paramname">base</td><td>FlexIO I2S peripheral base address. </td></tr>
|
|
<tr><td class="paramname">handle</td><td>FlexIO I2S DMA handle pointer. </td></tr>
|
|
<tr><td class="paramname">count</td><td>Bytes sent. </td></tr>
|
|
</table>
|
|
</dd>
|
|
</dl>
|
|
<dl class="retval"><dt>Return values</dt><dd>
|
|
<table class="retval">
|
|
<tr><td class="paramname">kStatus_Success</td><td>Succeed get the transfer count. </td></tr>
|
|
<tr><td class="paramname">kStatus_NoTransferInProgress</td><td>There is not a non-blocking transaction currently in progress. </td></tr>
|
|
</table>
|
|
</dd>
|
|
</dl>
|
|
|
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</div>
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</div>
|
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<a class="anchor" id="gabbeb9ad1ffd98e0a371cfa14d513d8d1"></a>
|
|
<div class="memitem">
|
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<div class="memproto">
|
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<table class="memname">
|
|
<tr>
|
|
<td class="memname"><a class="el" href="a00272.html#gaaabdaf7ee58ca7269bd4bf24efcde092">status_t</a> FLEXIO_I2S_TransferGetReceiveCountEDMA </td>
|
|
<td>(</td>
|
|
<td class="paramtype"><a class="el" href="a00032.html#ga2a438e02744f1a3b4ad6f18314536966">FLEXIO_I2S_Type</a> * </td>
|
|
<td class="paramname"><em>base</em>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype"><a class="el" href="a00033.html#a00393">flexio_i2s_edma_handle_t</a> * </td>
|
|
<td class="paramname"><em>handle</em>, </td>
|
|
</tr>
|
|
<tr>
|
|
<td class="paramkey"></td>
|
|
<td></td>
|
|
<td class="paramtype">size_t * </td>
|
|
<td class="paramname"><em>count</em> </td>
|
|
</tr>
|
|
<tr>
|
|
<td></td>
|
|
<td>)</td>
|
|
<td></td><td></td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
|
<table class="params">
|
|
<tr><td class="paramname">base</td><td>FlexIO I2S peripheral base address. </td></tr>
|
|
<tr><td class="paramname">handle</td><td>FlexIO I2S DMA handle pointer. </td></tr>
|
|
<tr><td class="paramname">count</td><td>Bytes received. </td></tr>
|
|
</table>
|
|
</dd>
|
|
</dl>
|
|
<dl class="retval"><dt>Return values</dt><dd>
|
|
<table class="retval">
|
|
<tr><td class="paramname">kStatus_Success</td><td>Succeed get the transfer count. </td></tr>
|
|
<tr><td class="paramname">kStatus_NoTransferInProgress</td><td>There is not a non-blocking transaction currently in progress. </td></tr>
|
|
</table>
|
|
</dd>
|
|
</dl>
|
|
|
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</div>
|
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</div>
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