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<h1>ocs_audio.v</h1> </div>
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<a href="ocs__audio_8v.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="keyword">/*</span>
<a name="l00002"></a>00002 <span class="keyword"> Copyright 2010, Aleksander Osman, alfik@poczta.fm. All rights reserved.</span>
<a name="l00003"></a>00003 <span class="keyword"> </span>
<a name="l00004"></a>00004 <span class="keyword"> Redistribution and use in source and binary forms, with or without modification, are</span>
<a name="l00005"></a>00005 <span class="keyword"> permitted provided that the following conditions are met:</span>
<a name="l00006"></a>00006 <span class="keyword"> </span>
<a name="l00007"></a>00007 <span class="keyword"> 1. Redistributions of source code must retain the above copyright notice, this list of</span>
<a name="l00008"></a>00008 <span class="keyword"> conditions and the following disclaimer.</span>
<a name="l00009"></a>00009 <span class="keyword"> </span>
<a name="l00010"></a>00010 <span class="keyword"> 2. Redistributions in binary form must reproduce the above copyright notice, this list</span>
<a name="l00011"></a>00011 <span class="keyword"> of conditions and the following disclaimer in the documentation and/or other materials</span>
<a name="l00012"></a>00012 <span class="keyword"> provided with the distribution.</span>
<a name="l00013"></a>00013 <span class="keyword"> </span>
<a name="l00014"></a>00014 <span class="keyword"> THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED</span>
<a name="l00015"></a>00015 <span class="keyword"> WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND</span>
<a name="l00016"></a>00016 <span class="keyword"> FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR</span>
<a name="l00017"></a>00017 <span class="keyword"> CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR</span>
<a name="l00018"></a>00018 <span class="keyword"> CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR</span>
<a name="l00019"></a>00019 <span class="keyword"> SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON</span>
<a name="l00020"></a>00020 <span class="keyword"> ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING</span>
<a name="l00021"></a>00021 <span class="keyword"> NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF</span>
<a name="l00022"></a>00022 <span class="keyword"> ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00023"></a>00023 <span class="keyword"> */</span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="keyword">/*! \file</span>
<a name="l00026"></a>00026 <span class="keyword"> \brief OCS audio implementation with WISHBONE master and slave interface.</span>
<a name="l00027"></a>00027 <span class="keyword"> */</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="keyword">/*! \brief \copybrief ocs_audio.v</span>
<a name="l00030"></a>00030 <span class="keyword"></span>
<a name="l00031"></a>00031 <span class="keyword">List of audio registers:</span>
<a name="l00032"></a>00032 <span class="keyword">\verbatim</span>
<a name="l00033"></a>00033 <span class="keyword">Implemented:</span>
<a name="l00034"></a>00034 <span class="keyword"> AUD0LCH + 0A0 W A( E ) Audio channel 0 location (high 3 bits, 5 if ECS)</span>
<a name="l00035"></a>00035 <span class="keyword"> AUD0LCL + 0A2 W A Audio channel 0 location (low 15 bits) (horiz. position)</span>
<a name="l00036"></a>00036 <span class="keyword"> AUD0LEN 0A4 W P Audio channel 0 length</span>
<a name="l00037"></a>00037 <span class="keyword"> AUD0PER 0A6 W P( E ) Audio channel 0 period</span>
<a name="l00038"></a>00038 <span class="keyword"> AUD0VOL 0A8 W P Audio channel 0 volume</span>
<a name="l00039"></a>00039 <span class="keyword"> AUD0DAT & 0AA W P Audio channel 0 data</span>
<a name="l00040"></a>00040 <span class="keyword"> </span>
<a name="l00041"></a>00041 <span class="keyword"> AUD1LCH + 0B0 W A Audio channel 1 location (high 3 bits)</span>
<a name="l00042"></a>00042 <span class="keyword"> AUD1LCL + 0B2 W A Audio channel 1 location (low 15 bits)</span>
<a name="l00043"></a>00043 <span class="keyword"> AUD1LEN 0B4 W P Audio channel 1 length</span>
<a name="l00044"></a>00044 <span class="keyword"> AUD1PER 0B6 W P Audio channel 1 period</span>
<a name="l00045"></a>00045 <span class="keyword"> AUD1VOL 0B8 W P Audio channel 1 volume</span>
<a name="l00046"></a>00046 <span class="keyword"> AUD1DAT & 0BA W P Audio channel 1 data</span>
<a name="l00047"></a>00047 <span class="keyword"> </span>
<a name="l00048"></a>00048 <span class="keyword"> AUD2LCH + 0C0 W A Audio channel 2 location (high 3 bits)</span>
<a name="l00049"></a>00049 <span class="keyword"> AUD2LCL + 0C2 W A Audio channel 2 location (low 15 bits)</span>
<a name="l00050"></a>00050 <span class="keyword"> AUD2LEN 0C4 W P Audio channel 2 length</span>
<a name="l00051"></a>00051 <span class="keyword"> AUD2PER 0C6 W P Audio channel 2 period</span>
<a name="l00052"></a>00052 <span class="keyword"> AUD2VOL 0C8 W P Audio channel 2 volume</span>
<a name="l00053"></a>00053 <span class="keyword"> AUD2DAT & 0CA W P Audio channel 2 data</span>
<a name="l00054"></a>00054 <span class="keyword"> </span>
<a name="l00055"></a>00055 <span class="keyword"> AUD3LCH + 0D0 W A Audio channel 3 location (high 3 bits)</span>
<a name="l00056"></a>00056 <span class="keyword"> AUD3LCL + 0D2 W A Audio channel 3 location (low 15 bits)</span>
<a name="l00057"></a>00057 <span class="keyword"> AUD3LEN 0D4 W P Audio channel 3 length</span>
<a name="l00058"></a>00058 <span class="keyword"> AUD3PER 0D6 W P Audio channel 3 period</span>
<a name="l00059"></a>00059 <span class="keyword"> AUD3VOL 0D8 W P Audio channel 3 volume</span>
<a name="l00060"></a>00060 <span class="keyword"> AUD3DAT & 0DA W P Audio channel 3 data</span>
<a name="l00061"></a>00061 <span class="keyword">\endverbatim</span>
<a name="l00062"></a>00062 <span class="keyword">*/</span>
<a name="l00063"></a><a class="code" href="classocs__audio.html">00063</a> <span class="vhdlkeyword">module</span> <a class="code" href="classocs__audio.html">ocs_audio</a>(
<a name="l00064"></a>00064 <span class="keyword">//% \name Clock and reset
</span>
<a name="l00065"></a>00065 <span class="keyword">//% @{</span>
<a name="l00066"></a><a class="code" href="classocs__audio.html#ab593e3c759258db9e38bb0c852535030">00066</a> <span class="vhdlkeyword">input</span> <a class="code" href="classocs__audio.html#ab593e3c759258db9e38bb0c852535030">CLK_I</a>,
<a name="l00067"></a><a class="code" href="classocs__audio.html#a51d3a1738784a1c6f89d43d170b0ba81">00067</a> <span class="vhdlkeyword">input</span> <a class="code" href="classocs__audio.html#a51d3a1738784a1c6f89d43d170b0ba81">reset_n</a>,
<a name="l00068"></a>00068 <span class="keyword">//% @}</span>
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="keyword">//% \name WISHBONE master
</span>
<a name="l00071"></a>00071 <span class="keyword">//% @{</span>
<a name="l00072"></a><a class="code" href="classocs__audio.html#a952e9a2a0154ec053fb2e49ea081501f">00072</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classocs__audio.html#a952e9a2a0154ec053fb2e49ea081501f">CYC_O</a>,
<a name="l00073"></a><a class="code" href="classocs__audio.html#aefb67681455aa4a72ecadb980f59670e">00073</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classocs__audio.html#aefb67681455aa4a72ecadb980f59670e">STB_O</a>,
<a name="l00074"></a><a class="code" href="classocs__audio.html#a6a26139322a566bb9303d08e8759ca1e">00074</a> <span class="vhdlkeyword">output</span> <a class="code" href="classocs__audio.html#a6a26139322a566bb9303d08e8759ca1e">WE_O</a>,
<a name="l00075"></a><a class="code" href="classocs__audio.html#a629bb58caaa9b542e81a094c9c121ee4">00075</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">2</span>] <a class="code" href="classocs__audio.html#a629bb58caaa9b542e81a094c9c121ee4">ADR_O</a>,
<a name="l00076"></a><a class="code" href="classocs__audio.html#a54252f6defdf23583620a256dee81d41">00076</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a54252f6defdf23583620a256dee81d41">SEL_O</a>,
<a name="l00077"></a><a class="code" href="classocs__audio.html#a03893514f2c9410d739ba5d9468a1a0e">00077</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a03893514f2c9410d739ba5d9468a1a0e">master_DAT_I</a>,
<a name="l00078"></a><a class="code" href="classocs__audio.html#a3a6dd22e25598af04f0158df2e738699">00078</a> <span class="vhdlkeyword">input</span> <a class="code" href="classocs__audio.html#a3a6dd22e25598af04f0158df2e738699">ACK_I</a>,
<a name="l00079"></a>00079 <span class="keyword">//% @}</span>
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="keyword">//% \name WISHBONE slave
</span>
<a name="l00082"></a>00082 <span class="keyword">//% @{</span>
<a name="l00083"></a><a class="code" href="classocs__audio.html#afe95b351992b1ed1992ff168f3d8eaef">00083</a> <span class="vhdlkeyword">input</span> <a class="code" href="classocs__audio.html#afe95b351992b1ed1992ff168f3d8eaef">CYC_I</a>,
<a name="l00084"></a><a class="code" href="classocs__audio.html#a1f69eb4aa13e76303090f907e90c4a6a">00084</a> <span class="vhdlkeyword">input</span> <a class="code" href="classocs__audio.html#a1f69eb4aa13e76303090f907e90c4a6a">STB_I</a>,
<a name="l00085"></a><a class="code" href="classocs__audio.html#ac469ca32cac04d1ba95c2aa6673fdd3a">00085</a> <span class="vhdlkeyword">input</span> <a class="code" href="classocs__audio.html#ac469ca32cac04d1ba95c2aa6673fdd3a">WE_I</a>,
<a name="l00086"></a><a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">00086</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">8</span>:<span class="vhdllogic">2</span>] <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>,
<a name="l00087"></a><a class="code" href="classocs__audio.html#a1737f4657da06fa21f2668cac34c4f35">00087</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a1737f4657da06fa21f2668cac34c4f35">SEL_I</a>,
<a name="l00088"></a><a class="code" href="classocs__audio.html#a258bae2cd10b2f7ac660c1fbb1cf6acb">00088</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a258bae2cd10b2f7ac660c1fbb1cf6acb">slave_DAT_I</a>,
<a name="l00089"></a><a class="code" href="classocs__audio.html#af7903e7671c8b54e20446f767f4340c6">00089</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classocs__audio.html#af7903e7671c8b54e20446f767f4340c6">ACK_O</a>,
<a name="l00090"></a>00090 <span class="keyword">//% @}</span>
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="keyword">//% \name Internal OCS ports
</span>
<a name="l00093"></a>00093 <span class="keyword">//% @{</span>
<a name="l00094"></a><a class="code" href="classocs__audio.html#ad7d33640e4db7e0bd7f9acc63b85c4e1">00094</a> <span class="vhdlkeyword">input</span> <a class="code" href="classocs__audio.html#ad7d33640e4db7e0bd7f9acc63b85c4e1">pulse_color</a>,
<a name="l00095"></a><a class="code" href="classocs__audio.html#a3f2ed82fcdb72e222697a9b5a315d21d">00095</a> <span class="vhdlkeyword">input</span> <a class="code" href="classocs__audio.html#a3f2ed82fcdb72e222697a9b5a315d21d">line_start</a>,
<a name="l00096"></a>00096
<a name="l00097"></a><a class="code" href="classocs__audio.html#a750238793e96b26829bdc3023b90fade">00097</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">10</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a750238793e96b26829bdc3023b90fade">dma_con</a>,
<a name="l00098"></a><a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">00098</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">14</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>,
<a name="l00099"></a>00099
<a name="l00100"></a><a class="code" href="classocs__audio.html#a3509e851abb62f3296616eeb887b7ee1">00100</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a3509e851abb62f3296616eeb887b7ee1">audio_irq</a>,
<a name="l00101"></a>00101 <span class="keyword">//% @}</span>
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="keyword">//% \name drv_audio interface
</span>
<a name="l00104"></a>00104 <span class="keyword">//% @{</span>
<a name="l00105"></a><a class="code" href="classocs__audio.html#ac522f12cbf6779e1a74fc30c2971e553">00105</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">5</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#ac522f12cbf6779e1a74fc30c2971e553">volume0</a>,
<a name="l00106"></a><a class="code" href="classocs__audio.html#a65d9375f4430a50931f15a1a4e1c77e4">00106</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">5</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a65d9375f4430a50931f15a1a4e1c77e4">volume1</a>,
<a name="l00107"></a><a class="code" href="classocs__audio.html#aceb9da5a6620805f73e9a802e44c58e1">00107</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">5</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#aceb9da5a6620805f73e9a802e44c58e1">volume2</a>,
<a name="l00108"></a><a class="code" href="classocs__audio.html#ad7c6b4ca93097a9762f3f60eed1bec1a">00108</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">5</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#ad7c6b4ca93097a9762f3f60eed1bec1a">volume3</a>,
<a name="l00109"></a><a class="code" href="classocs__audio.html#ac9609bb5abb25d8240941a9f033540da">00109</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#ac9609bb5abb25d8240941a9f033540da">sample0</a>,
<a name="l00110"></a><a class="code" href="classocs__audio.html#a60094384acf2017acb9e35b15942b33e">00110</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a60094384acf2017acb9e35b15942b33e">sample1</a>,
<a name="l00111"></a><a class="code" href="classocs__audio.html#aac650cd4f6725e08265af77cf45b3df9">00111</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#aac650cd4f6725e08265af77cf45b3df9">sample2</a>,
<a name="l00112"></a><a class="code" href="classocs__audio.html#a5ff40efc660cf416ab60702f63dd3c61">00112</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a5ff40efc660cf416ab60702f63dd3c61">sample3</a>
<a name="l00113"></a>00113 <span class="keyword">//% @}</span>
<a name="l00114"></a>00114 );
<a name="l00115"></a>00115
<a name="l00116"></a>00116 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a6a26139322a566bb9303d08e8759ca1e">WE_O</a> = <span class="vhdllogic">1'b0</span>;
<a name="l00117"></a>00117 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a54252f6defdf23583620a256dee81d41">SEL_O</a> = <span class="vhdllogic">4'b1111</span>;
<a name="l00118"></a>00118
<a name="l00119"></a>00119 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#ac522f12cbf6779e1a74fc30c2971e553">volume0</a> = (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">4</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">6'd0</span> : (<a class="code" href="classocs__audio.html#a23837be51370ed07781ed1facb3d2518">channel0_volume</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">6'b111111</span> : <a class="code" href="classocs__audio.html#a23837be51370ed07781ed1facb3d2518">channel0_volume</a>[<span class="vhdllogic">5</span>:<span class="vhdllogic">0</span>];
<a name="l00120"></a>00120 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a65d9375f4430a50931f15a1a4e1c77e4">volume1</a> = (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">5</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">6'd0</span> : (<a class="code" href="classocs__audio.html#a16ae2463897db179478244d133a30a20">channel1_volume</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">6'b111111</span> : <a class="code" href="classocs__audio.html#a16ae2463897db179478244d133a30a20">channel1_volume</a>[<span class="vhdllogic">5</span>:<span class="vhdllogic">0</span>];
<a name="l00121"></a>00121 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#aceb9da5a6620805f73e9a802e44c58e1">volume2</a> = (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">6'd0</span> : (<a class="code" href="classocs__audio.html#ae0953a48b95da59940df39659ef26c69">channel2_volume</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">6'b111111</span> : <a class="code" href="classocs__audio.html#ae0953a48b95da59940df39659ef26c69">channel2_volume</a>[<span class="vhdllogic">5</span>:<span class="vhdllogic">0</span>];
<a name="l00122"></a>00122 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#ad7c6b4ca93097a9762f3f60eed1bec1a">volume3</a> = (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">3</span>] == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">7</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">6'd0</span> : (<a class="code" href="classocs__audio.html#a67292bec2fed5d4e8c18889b9a9f441e">channel3_volume</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">6'b111111</span> : <a class="code" href="classocs__audio.html#a67292bec2fed5d4e8c18889b9a9f441e">channel3_volume</a>[<span class="vhdllogic">5</span>:<span class="vhdllogic">0</span>];
<a name="l00123"></a>00123
<a name="l00124"></a><a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">00124</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>;
<a name="l00125"></a><a class="code" href="classocs__audio.html#a35bacd9ff4b892dec459aa3e2aa70a9a">00125</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a35bacd9ff4b892dec459aa3e2aa70a9a">selected_channel</a>;
<a name="l00126"></a>00126 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a35bacd9ff4b892dec459aa3e2aa70a9a">selected_channel</a> =
<a name="l00127"></a>00127 (<a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">2'd0</span> :
<a name="l00128"></a>00128 (<a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">2'd1</span> :
<a name="l00129"></a>00129 (<a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">2'd2</span> :
<a name="l00130"></a>00130 <span class="vhdllogic">2'd3</span>;
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a629bb58caaa9b542e81a094c9c121ee4">ADR_O</a> =
<a name="l00133"></a>00133 (<a class="code" href="classocs__audio.html#a35bacd9ff4b892dec459aa3e2aa70a9a">selected_channel</a> == <span class="vhdllogic">3'd0</span>) ? <a class="code" href="classocs__audio.html#a2823655dfa2964666a24be0306582321">dma_address0</a>[<span class="vhdllogic">31</span>:<span class="vhdllogic">2</span>] :
<a name="l00134"></a>00134 (<a class="code" href="classocs__audio.html#a35bacd9ff4b892dec459aa3e2aa70a9a">selected_channel</a> == <span class="vhdllogic">3'd1</span>) ? <a class="code" href="classocs__audio.html#a1f4a17aac8bba5166de039573c36863b">dma_address1</a>[<span class="vhdllogic">31</span>:<span class="vhdllogic">2</span>] :
<a name="l00135"></a>00135 (<a class="code" href="classocs__audio.html#a35bacd9ff4b892dec459aa3e2aa70a9a">selected_channel</a> == <span class="vhdllogic">3'd2</span>) ? <a class="code" href="classocs__audio.html#af65d0b8a41fc76704f366fb0e5260a3d">dma_address2</a>[<span class="vhdllogic">31</span>:<span class="vhdllogic">2</span>] :
<a name="l00136"></a>00136 <a class="code" href="classocs__audio.html#a357e85bd8d327ce5e528f6b74f0601c8">dma_address3</a>[<span class="vhdllogic">31</span>:<span class="vhdllogic">2</span>];
<a name="l00137"></a>00137
<a name="l00138"></a><a class="code" href="classocs__audio.html#a34153e1153cc27f2ffb5017b9b9afbd3">00138</a> <span class="vhdlkeyword">wire</span> <a class="code" href="classocs__audio.html#a34153e1153cc27f2ffb5017b9b9afbd3">dma_req</a>;
<a name="l00139"></a>00139 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a34153e1153cc27f2ffb5017b9b9afbd3">dma_req</a> = <a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>[<span class="vhdllogic">0</span>] | <a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>[<span class="vhdllogic">1</span>] | <a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>[<span class="vhdllogic">2</span>] | <a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>[<span class="vhdllogic">3</span>];
<a name="l00140"></a>00140
<a name="l00141"></a>00141 <span class="keyword">//*************** Channel 0</span>
<a name="l00142"></a><a class="code" href="classocs__audio.html#a23837be51370ed07781ed1facb3d2518">00142</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">6</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a23837be51370ed07781ed1facb3d2518">channel0_volume</a>;
<a name="l00143"></a><a class="code" href="classocs__audio.html#ad045b17f13846ee9a87d9b6f4898f4e7">00143</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#ad045b17f13846ee9a87d9b6f4898f4e7">channel0_data</a>;
<a name="l00144"></a><a class="code" href="classocs__audio.html#aa5264a5abe7887fc5567c85d499eac30">00144</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#aa5264a5abe7887fc5567c85d499eac30">channel0_update</a>;
<a name="l00145"></a><a class="code" href="classocs__audio.html#a2823655dfa2964666a24be0306582321">00145</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a2823655dfa2964666a24be0306582321">dma_address0</a>;
<a name="l00146"></a>00146
<a name="l00147"></a><a class="code" href="classocs__audio.html#a5fbbc733c0087f24168613c11cad128f">00147</a> <span class="vhdlkeyword">wire</span> <a class="code" href="classocs__audio.html#a5fbbc733c0087f24168613c11cad128f">write_ena_extern0</a>;
<a name="l00148"></a>00148 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a5fbbc733c0087f24168613c11cad128f">write_ena_extern0</a> = (<a class="code" href="classocs__audio.html#afe95b351992b1ed1992ff168f3d8eaef">CYC_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a1f69eb4aa13e76303090f907e90c4a6a">STB_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#ac469ca32cac04d1ba95c2aa6673fdd3a">WE_I</a> == <span class="vhdllogic">1'b1</span> &&
<a name="l00149"></a>00149 ( { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0A0</span> || { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0A4</span> || { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0A8</span> ) );
<a name="l00150"></a><a class="code" href="classocs__audio.html#a80abf315f9553a61eedee4107c7bc09f">00150</a> <span class="vhdlkeyword">wire</span> <a class="code" href="classocs__audio.html#a80abf315f9553a61eedee4107c7bc09f">write_ena0</a>;
<a name="l00151"></a>00151 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a80abf315f9553a61eedee4107c7bc09f">write_ena0</a> = <a class="code" href="classocs__audio.html#a5fbbc733c0087f24168613c11cad128f">write_ena_extern0</a>;
<a name="l00152"></a>00152
<a name="l00153"></a><a class="code" href="classocs__audio.html#a17b572cbfe27e5cf422fc1106cdc823f">00153</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a17b572cbfe27e5cf422fc1106cdc823f">write_address0</a>;
<a name="l00154"></a>00154 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a17b572cbfe27e5cf422fc1106cdc823f">write_address0</a> =
<a name="l00155"></a>00155 ({ <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0A0</span>) ? <span class="vhdllogic">2'd0</span> :
<a name="l00156"></a>00156 ({ <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0A4</span>) ? <span class="vhdllogic">2'd1</span> :
<a name="l00157"></a>00157 <span class="vhdllogic">2'd2</span>;
<a name="l00158"></a>00158
<a name="l00159"></a><a class="code" href="classocs__audio.html#afd104f42c748b69da931db495d162288">00159</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#afd104f42c748b69da931db495d162288">write_data0</a>;
<a name="l00160"></a>00160 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#afd104f42c748b69da931db495d162288">write_data0</a> = <a class="code" href="classocs__audio.html#a258bae2cd10b2f7ac660c1fbb1cf6acb">slave_DAT_I</a>;
<a name="l00161"></a>00161
<a name="l00162"></a><a class="code" href="classocs__audio.html#a1dca72906948198ef1949252180c3056">00162</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a1dca72906948198ef1949252180c3056">write_sel0</a>;
<a name="l00163"></a>00163 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a1dca72906948198ef1949252180c3056">write_sel0</a> = <a class="code" href="classocs__audio.html#a1737f4657da06fa21f2668cac34c4f35">SEL_I</a>;
<a name="l00164"></a>00164
<a name="l00165"></a><a class="code" href="classocs__audio.html#aadbf6b5ee174186b2adcb40e12508dfc">00165</a> <a class="code" href="classocs__audio.html#a0f1160d557a4f647f9aaa0a7df7381a1">sound_channel</a> <span class="vhdlchar">sound_channel_0</span>(
<a name="l00166"></a>00166 .<a class="code" href="classsound__channel.html#ae53dfe2c9189507774703ce830415ec9">ocs_audio</a>(<a class="code" href="classsound__channel.html#ae53dfe2c9189507774703ce830415ec9">ocs_audio</a>),
<a name="l00167"></a>00167 .<a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">ocs_audio</a>(<a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">ocs_audio</a>),
<a name="l00168"></a>00168
<a name="l00169"></a>00169 .<a class="code" href="classsound__channel.html#a5d1b8d79fc1eb4c410cffef74233ed42">ocs_audio</a>(<a class="code" href="classsound__channel.html#a5d1b8d79fc1eb4c410cffef74233ed42">ocs_audio</a>),
<a name="l00170"></a>00170 .<a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">ocs_audio</a>(<a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">ocs_audio</a>),
<a name="l00171"></a>00171
<a name="l00172"></a>00172 .<a class="code" href="classsound__channel.html#a294f6ae6cf54475dbe2c69fcf2176118">ocs_audio</a>(<a class="code" href="classocs__audio.html#a750238793e96b26829bdc3023b90fade">dma_con</a>[<span class="vhdllogic">9</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a750238793e96b26829bdc3023b90fade">dma_con</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span>),
<a name="l00173"></a>00173 .<a class="code" href="classsound__channel.html#a6d7ddd465852ad8b6d4fa95d873f0e9b">ocs_audio</a>(<a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>[<span class="vhdllogic">0</span>]),
<a name="l00174"></a>00174 .<a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">ocs_audio</a>(<a class="code" href="classocs__audio.html#a2823655dfa2964666a24be0306582321">dma_address0</a>),
<a name="l00175"></a>00175 .<a class="code" href="classsound__channel.html#a1423460c5a14cbf8ffbce10972a9da6f">ocs_audio</a>(<a class="code" href="classocs__audio.html#a35bacd9ff4b892dec459aa3e2aa70a9a">selected_channel</a> == <span class="vhdllogic">2'd0</span> && <a class="code" href="classocs__audio.html#a3a6dd22e25598af04f0158df2e738699">ACK_I</a> == <span class="vhdllogic">1'b1</span>),
<a name="l00176"></a>00176 .<a class="code" href="classsound__channel.html#a602d030cee631a5b4a62d59c3e1bc8f3">ocs_audio</a>(<a class="code" href="classocs__audio.html#a03893514f2c9410d739ba5d9468a1a0e">master_DAT_I</a>),
<a name="l00177"></a>00177
<a name="l00178"></a>00178 .<a class="code" href="classsound__channel.html#a530aba2e801dfc325ab1f6839a334771">ocs_audio</a>(<a class="code" href="classocs__audio.html#a80abf315f9553a61eedee4107c7bc09f">write_ena0</a>),
<a name="l00179"></a>00179 .<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">ocs_audio</a>(<a class="code" href="classocs__audio.html#a17b572cbfe27e5cf422fc1106cdc823f">write_address0</a>),
<a name="l00180"></a>00180 .<a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">ocs_audio</a>(<a class="code" href="classocs__audio.html#afd104f42c748b69da931db495d162288">write_data0</a>),
<a name="l00181"></a>00181 .<a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">ocs_audio</a>(<a class="code" href="classocs__audio.html#a1dca72906948198ef1949252180c3056">write_sel0</a>),
<a name="l00182"></a>00182
<a name="l00183"></a>00183 .<a class="code" href="classsound__channel.html#a82c5e63193adbf3a3226f403f57c6bbd">ocs_audio</a>(<a class="code" href="classocs__audio.html#a3509e851abb62f3296616eeb887b7ee1">audio_irq</a>[<span class="vhdllogic">0</span>]),
<a name="l00184"></a>00184
<a name="l00185"></a>00185 .<a class="code" href="classsound__channel.html#abc3bcbef38ae211f9731ebf065038c9a">ocs_audio</a>(<a class="code" href="classocs__audio.html#a23837be51370ed07781ed1facb3d2518">channel0_volume</a>),
<a name="l00186"></a>00186 .<a class="code" href="classsound__channel.html#a0bf609352aecc9aab306f8b86d76cb22">ocs_audio</a>(<a class="code" href="classocs__audio.html#ac9609bb5abb25d8240941a9f033540da">sample0</a>),
<a name="l00187"></a>00187 .<a class="code" href="classsound__channel.html#a92e6c18822d672056333a5be616746aa">ocs_audio</a>(<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">4</span>] == <span class="vhdllogic">1'b1</span>),
<a name="l00188"></a>00188 .<a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">ocs_audio</a>(<a class="code" href="classocs__audio.html#ad045b17f13846ee9a87d9b6f4898f4e7">channel0_data</a>),
<a name="l00189"></a>00189 .<a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">ocs_audio</a>(<a class="code" href="classocs__audio.html#aa5264a5abe7887fc5567c85d499eac30">channel0_update</a>)
<a name="l00190"></a>00190 );
<a name="l00191"></a>00191
<a name="l00192"></a>00192
<a name="l00193"></a>00193 <span class="keyword">//*************** Channel 1</span>
<a name="l00194"></a><a class="code" href="classocs__audio.html#a16ae2463897db179478244d133a30a20">00194</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">6</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a16ae2463897db179478244d133a30a20">channel1_volume</a>;
<a name="l00195"></a><a class="code" href="classocs__audio.html#af28ce141cfed3ece688fb2af1ecf8239">00195</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#af28ce141cfed3ece688fb2af1ecf8239">channel1_data</a>;
<a name="l00196"></a><a class="code" href="classocs__audio.html#ae3e29c3faa85c2cfd604100653e310cd">00196</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#ae3e29c3faa85c2cfd604100653e310cd">channel1_update</a>;
<a name="l00197"></a><a class="code" href="classocs__audio.html#a1f4a17aac8bba5166de039573c36863b">00197</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a1f4a17aac8bba5166de039573c36863b">dma_address1</a>;
<a name="l00198"></a>00198
<a name="l00199"></a><a class="code" href="classocs__audio.html#a16310f1049fa3feb7911b43de915ef45">00199</a> <span class="vhdlkeyword">wire</span> <a class="code" href="classocs__audio.html#a16310f1049fa3feb7911b43de915ef45">write_ena_extern1</a>;
<a name="l00200"></a>00200 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a16310f1049fa3feb7911b43de915ef45">write_ena_extern1</a> = (<a class="code" href="classocs__audio.html#afe95b351992b1ed1992ff168f3d8eaef">CYC_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a1f69eb4aa13e76303090f907e90c4a6a">STB_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#ac469ca32cac04d1ba95c2aa6673fdd3a">WE_I</a> == <span class="vhdllogic">1'b1</span> &&
<a name="l00201"></a>00201 ( { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0B0</span> || { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0B4</span> || { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0B8</span>) );
<a name="l00202"></a><a class="code" href="classocs__audio.html#af89ba0975ed707327686734d17707ea4">00202</a> <span class="vhdlkeyword">wire</span> <a class="code" href="classocs__audio.html#af89ba0975ed707327686734d17707ea4">write_ena1</a>;
<a name="l00203"></a>00203 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#af89ba0975ed707327686734d17707ea4">write_ena1</a> = ((<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">4</span>] == <span class="vhdllogic">1'b1</span>) && (<a class="code" href="classocs__audio.html#aa5264a5abe7887fc5567c85d499eac30">channel0_update</a> == <span class="vhdllogic">2'b10</span> || <a class="code" href="classocs__audio.html#aa5264a5abe7887fc5567c85d499eac30">channel0_update</a> == <span class="vhdllogic">2'b11</span>)) || <a class="code" href="classocs__audio.html#a16310f1049fa3feb7911b43de915ef45">write_ena_extern1</a>;
<a name="l00204"></a>00204
<a name="l00205"></a><a class="code" href="classocs__audio.html#ae70b4c7663e2ff569bdddc1fbedb66dc">00205</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#ae70b4c7663e2ff569bdddc1fbedb66dc">write_address1</a>;
<a name="l00206"></a>00206 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#ae70b4c7663e2ff569bdddc1fbedb66dc">write_address1</a> =
<a name="l00207"></a>00207 <a class="code" href="classocs__audio.html#a16310f1049fa3feb7911b43de915ef45">write_ena_extern1</a> ? (
<a name="l00208"></a>00208 ({ <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0B0</span>) ? <span class="vhdllogic">2'd0</span> :
<a name="l00209"></a>00209 ({ <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0B4</span>) ? <span class="vhdllogic">2'd1</span> :
<a name="l00210"></a>00210 <span class="vhdllogic">2'd2</span>
<a name="l00211"></a>00211 ) :
<a name="l00212"></a>00212 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">4</span>] == <span class="vhdllogic">1'b0</span>) ? <span class="vhdllogic">2'd2</span> :
<a name="l00213"></a>00213 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b0</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">4</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">2'd1</span> :
<a name="l00214"></a>00214 (<a class="code" href="classocs__audio.html#aa5264a5abe7887fc5567c85d499eac30">channel0_update</a> == <span class="vhdllogic">2'b10</span>) ? <span class="vhdllogic">2'd2</span> :
<a name="l00215"></a>00215 <span class="vhdllogic">2'd1</span>;
<a name="l00216"></a>00216
<a name="l00217"></a><a class="code" href="classocs__audio.html#a76dfd99c6e0d379be9f7f2de44926f7a">00217</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a76dfd99c6e0d379be9f7f2de44926f7a">write_sel1</a>;
<a name="l00218"></a>00218 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a76dfd99c6e0d379be9f7f2de44926f7a">write_sel1</a> =
<a name="l00219"></a>00219 <a class="code" href="classocs__audio.html#a16310f1049fa3feb7911b43de915ef45">write_ena_extern1</a> ? <a class="code" href="classocs__audio.html#a1737f4657da06fa21f2668cac34c4f35">SEL_I</a> :
<a name="l00220"></a>00220 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">4</span>] == <span class="vhdllogic">1'b0</span>) ? <span class="vhdllogic">4'b1100</span> :
<a name="l00221"></a>00221 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b0</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">4</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">4'b0011</span> :
<a name="l00222"></a>00222 (<a class="code" href="classocs__audio.html#aa5264a5abe7887fc5567c85d499eac30">channel0_update</a> == <span class="vhdllogic">2'b10</span>) ? <span class="vhdllogic">4'b1100</span> :
<a name="l00223"></a>00223 <span class="vhdllogic">4'b0011</span>;
<a name="l00224"></a>00224
<a name="l00225"></a><a class="code" href="classocs__audio.html#afef826af8ab769231880bfe50c78db1e">00225</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#afef826af8ab769231880bfe50c78db1e">write_data1</a>;
<a name="l00226"></a>00226 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#afef826af8ab769231880bfe50c78db1e">write_data1</a> =
<a name="l00227"></a>00227 <a class="code" href="classocs__audio.html#a16310f1049fa3feb7911b43de915ef45">write_ena_extern1</a> ? <a class="code" href="classocs__audio.html#a258bae2cd10b2f7ac660c1fbb1cf6acb">slave_DAT_I</a> :
<a name="l00228"></a>00228 <a class="code" href="classocs__audio.html#ad045b17f13846ee9a87d9b6f4898f4e7">channel0_data</a>;
<a name="l00229"></a>00229
<a name="l00230"></a><a class="code" href="classocs__audio.html#a2e1cb76fcd9b95b2cc64f7d0fe7876d4">00230</a> <a class="code" href="classocs__audio.html#a0f1160d557a4f647f9aaa0a7df7381a1">sound_channel</a> <span class="vhdlchar">sound_channel_1</span>(
<a name="l00231"></a>00231 .<a class="code" href="classsound__channel.html#ae53dfe2c9189507774703ce830415ec9">ocs_audio</a>(<a class="code" href="classsound__channel.html#ae53dfe2c9189507774703ce830415ec9">ocs_audio</a>),
<a name="l00232"></a>00232 .<a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">ocs_audio</a>(<a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">ocs_audio</a>),
<a name="l00233"></a>00233
<a name="l00234"></a>00234 .<a class="code" href="classsound__channel.html#a5d1b8d79fc1eb4c410cffef74233ed42">ocs_audio</a>(<a class="code" href="classsound__channel.html#a5d1b8d79fc1eb4c410cffef74233ed42">ocs_audio</a>),
<a name="l00235"></a>00235 .<a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">ocs_audio</a>(<a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">ocs_audio</a>),
<a name="l00236"></a>00236
<a name="l00237"></a>00237 .<a class="code" href="classsound__channel.html#a294f6ae6cf54475dbe2c69fcf2176118">ocs_audio</a>(<a class="code" href="classocs__audio.html#a750238793e96b26829bdc3023b90fade">dma_con</a>[<span class="vhdllogic">9</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a750238793e96b26829bdc3023b90fade">dma_con</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b1</span>),
<a name="l00238"></a>00238 .<a class="code" href="classsound__channel.html#a6d7ddd465852ad8b6d4fa95d873f0e9b">ocs_audio</a>(<a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>[<span class="vhdllogic">1</span>]),
<a name="l00239"></a>00239 .<a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">ocs_audio</a>(<a class="code" href="classocs__audio.html#a1f4a17aac8bba5166de039573c36863b">dma_address1</a>),
<a name="l00240"></a>00240 .<a class="code" href="classsound__channel.html#a1423460c5a14cbf8ffbce10972a9da6f">ocs_audio</a>(<a class="code" href="classocs__audio.html#a35bacd9ff4b892dec459aa3e2aa70a9a">selected_channel</a> == <span class="vhdllogic">2'd1</span> && <a class="code" href="classocs__audio.html#a3a6dd22e25598af04f0158df2e738699">ACK_I</a> == <span class="vhdllogic">1'b1</span>),
<a name="l00241"></a>00241 .<a class="code" href="classsound__channel.html#a602d030cee631a5b4a62d59c3e1bc8f3">ocs_audio</a>(<a class="code" href="classocs__audio.html#a03893514f2c9410d739ba5d9468a1a0e">master_DAT_I</a>),
<a name="l00242"></a>00242
<a name="l00243"></a>00243 .<a class="code" href="classsound__channel.html#a530aba2e801dfc325ab1f6839a334771">ocs_audio</a>(<a class="code" href="classocs__audio.html#af89ba0975ed707327686734d17707ea4">write_ena1</a>),
<a name="l00244"></a>00244 .<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">ocs_audio</a>(<a class="code" href="classocs__audio.html#ae70b4c7663e2ff569bdddc1fbedb66dc">write_address1</a>),
<a name="l00245"></a>00245 .<a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">ocs_audio</a>(<a class="code" href="classocs__audio.html#afef826af8ab769231880bfe50c78db1e">write_data1</a>),
<a name="l00246"></a>00246 .<a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">ocs_audio</a>(<a class="code" href="classocs__audio.html#a76dfd99c6e0d379be9f7f2de44926f7a">write_sel1</a>),
<a name="l00247"></a>00247
<a name="l00248"></a>00248 .<a class="code" href="classsound__channel.html#a82c5e63193adbf3a3226f403f57c6bbd">ocs_audio</a>(<a class="code" href="classocs__audio.html#a3509e851abb62f3296616eeb887b7ee1">audio_irq</a>[<span class="vhdllogic">1</span>]),
<a name="l00249"></a>00249
<a name="l00250"></a>00250 .<a class="code" href="classsound__channel.html#abc3bcbef38ae211f9731ebf065038c9a">ocs_audio</a>(<a class="code" href="classocs__audio.html#a16ae2463897db179478244d133a30a20">channel1_volume</a>),
<a name="l00251"></a>00251 .<a class="code" href="classsound__channel.html#a0bf609352aecc9aab306f8b86d76cb22">ocs_audio</a>(<a class="code" href="classocs__audio.html#a60094384acf2017acb9e35b15942b33e">sample1</a>),
<a name="l00252"></a>00252 .<a class="code" href="classsound__channel.html#a92e6c18822d672056333a5be616746aa">ocs_audio</a>(<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">5</span>] == <span class="vhdllogic">1'b1</span>),
<a name="l00253"></a>00253 .<a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">ocs_audio</a>(<a class="code" href="classocs__audio.html#af28ce141cfed3ece688fb2af1ecf8239">channel1_data</a>),
<a name="l00254"></a>00254 .<a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">ocs_audio</a>(<a class="code" href="classocs__audio.html#ae3e29c3faa85c2cfd604100653e310cd">channel1_update</a>)
<a name="l00255"></a>00255 );
<a name="l00256"></a>00256
<a name="l00257"></a>00257 <span class="keyword">//*************** Channel 2</span>
<a name="l00258"></a><a class="code" href="classocs__audio.html#ae0953a48b95da59940df39659ef26c69">00258</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">6</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#ae0953a48b95da59940df39659ef26c69">channel2_volume</a>;
<a name="l00259"></a><a class="code" href="classocs__audio.html#a07ff9efd26a7dc4dca9ff1a07920f142">00259</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a07ff9efd26a7dc4dca9ff1a07920f142">channel2_data</a>;
<a name="l00260"></a><a class="code" href="classocs__audio.html#a07f8adc5059172d3986a060f7a19e4d7">00260</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a07f8adc5059172d3986a060f7a19e4d7">channel2_update</a>;
<a name="l00261"></a><a class="code" href="classocs__audio.html#af65d0b8a41fc76704f366fb0e5260a3d">00261</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#af65d0b8a41fc76704f366fb0e5260a3d">dma_address2</a>;
<a name="l00262"></a><a class="code" href="classocs__audio.html#a87823463c108190df36488ecd43c9544">00262</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a87823463c108190df36488ecd43c9544">channel2_sample</a>;
<a name="l00263"></a>00263
<a name="l00264"></a><a class="code" href="classocs__audio.html#a05e90cab8055c9d1d593060517c6b0d3">00264</a> <span class="vhdlkeyword">wire</span> <a class="code" href="classocs__audio.html#a05e90cab8055c9d1d593060517c6b0d3">write_ena_extern2</a>;
<a name="l00265"></a>00265 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a05e90cab8055c9d1d593060517c6b0d3">write_ena_extern2</a> = (<a class="code" href="classocs__audio.html#afe95b351992b1ed1992ff168f3d8eaef">CYC_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a1f69eb4aa13e76303090f907e90c4a6a">STB_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#ac469ca32cac04d1ba95c2aa6673fdd3a">WE_I</a> == <span class="vhdllogic">1'b1</span> &&
<a name="l00266"></a>00266 ( { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0C0</span> || { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0C4</span> || { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0C8</span>) );
<a name="l00267"></a><a class="code" href="classocs__audio.html#a7ff807f8ffd079b0878f3d82df4d8cfa">00267</a> <span class="vhdlkeyword">wire</span> <a class="code" href="classocs__audio.html#a7ff807f8ffd079b0878f3d82df4d8cfa">write_ena2</a>;
<a name="l00268"></a>00268 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a7ff807f8ffd079b0878f3d82df4d8cfa">write_ena2</a> = ((<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">5</span>] == <span class="vhdllogic">1'b1</span>) && (<a class="code" href="classocs__audio.html#ae3e29c3faa85c2cfd604100653e310cd">channel1_update</a> == <span class="vhdllogic">2'b10</span> || <a class="code" href="classocs__audio.html#ae3e29c3faa85c2cfd604100653e310cd">channel1_update</a> == <span class="vhdllogic">2'b11</span>)) || <a class="code" href="classocs__audio.html#a05e90cab8055c9d1d593060517c6b0d3">write_ena_extern2</a>;
<a name="l00269"></a>00269
<a name="l00270"></a><a class="code" href="classocs__audio.html#a07ba50b306bd2f365bf2271cad9e7b67">00270</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a07ba50b306bd2f365bf2271cad9e7b67">write_address2</a>;
<a name="l00271"></a>00271 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a07ba50b306bd2f365bf2271cad9e7b67">write_address2</a> =
<a name="l00272"></a>00272 <a class="code" href="classocs__audio.html#a05e90cab8055c9d1d593060517c6b0d3">write_ena_extern2</a> ? (
<a name="l00273"></a>00273 ({ <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0C0</span>) ? <span class="vhdllogic">2'd0</span> :
<a name="l00274"></a>00274 ({ <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0C4</span>) ? <span class="vhdllogic">2'd1</span> :
<a name="l00275"></a>00275 <span class="vhdllogic">2'd2</span>
<a name="l00276"></a>00276 ) :
<a name="l00277"></a>00277 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">5</span>] == <span class="vhdllogic">1'b0</span>) ? <span class="vhdllogic">2'd2</span> :
<a name="l00278"></a>00278 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b0</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">5</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">2'd1</span> :
<a name="l00279"></a>00279 (<a class="code" href="classocs__audio.html#ae3e29c3faa85c2cfd604100653e310cd">channel1_update</a> == <span class="vhdllogic">2'b10</span>) ? <span class="vhdllogic">2'd2</span> :
<a name="l00280"></a>00280 <span class="vhdllogic">2'd1</span>;
<a name="l00281"></a>00281
<a name="l00282"></a><a class="code" href="classocs__audio.html#acdc1c4c8716f21c2f530ccf2d055bdd1">00282</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#acdc1c4c8716f21c2f530ccf2d055bdd1">write_sel2</a>;
<a name="l00283"></a>00283 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#acdc1c4c8716f21c2f530ccf2d055bdd1">write_sel2</a> =
<a name="l00284"></a>00284 <a class="code" href="classocs__audio.html#a05e90cab8055c9d1d593060517c6b0d3">write_ena_extern2</a> ? <a class="code" href="classocs__audio.html#a1737f4657da06fa21f2668cac34c4f35">SEL_I</a> :
<a name="l00285"></a>00285 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">5</span>] == <span class="vhdllogic">1'b0</span>) ? <span class="vhdllogic">4'b1100</span> :
<a name="l00286"></a>00286 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b0</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">5</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">4'b0011</span> :
<a name="l00287"></a>00287 (<a class="code" href="classocs__audio.html#ae3e29c3faa85c2cfd604100653e310cd">channel1_update</a> == <span class="vhdllogic">2'b10</span>) ? <span class="vhdllogic">4'b1100</span> :
<a name="l00288"></a>00288 <span class="vhdllogic">4'b0011</span>;
<a name="l00289"></a>00289
<a name="l00290"></a><a class="code" href="classocs__audio.html#a23d42b1df6732b104ea1c50d0a184daf">00290</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a23d42b1df6732b104ea1c50d0a184daf">write_data2</a>;
<a name="l00291"></a>00291 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a23d42b1df6732b104ea1c50d0a184daf">write_data2</a> =
<a name="l00292"></a>00292 <a class="code" href="classocs__audio.html#a05e90cab8055c9d1d593060517c6b0d3">write_ena_extern2</a> ? <a class="code" href="classocs__audio.html#a258bae2cd10b2f7ac660c1fbb1cf6acb">slave_DAT_I</a> :
<a name="l00293"></a>00293 <a class="code" href="classocs__audio.html#af28ce141cfed3ece688fb2af1ecf8239">channel1_data</a>;
<a name="l00294"></a>00294
<a name="l00295"></a><a class="code" href="classocs__audio.html#adabd9c7e91e11e070ab3d8a7587a44c0">00295</a> <a class="code" href="classocs__audio.html#a0f1160d557a4f647f9aaa0a7df7381a1">sound_channel</a> <span class="vhdlchar">sound_channel_2</span>(
<a name="l00296"></a>00296 .<a class="code" href="classsound__channel.html#ae53dfe2c9189507774703ce830415ec9">ocs_audio</a>(<a class="code" href="classsound__channel.html#ae53dfe2c9189507774703ce830415ec9">ocs_audio</a>),
<a name="l00297"></a>00297 .<a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">ocs_audio</a>(<a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">ocs_audio</a>),
<a name="l00298"></a>00298
<a name="l00299"></a>00299 .<a class="code" href="classsound__channel.html#a5d1b8d79fc1eb4c410cffef74233ed42">ocs_audio</a>(<a class="code" href="classsound__channel.html#a5d1b8d79fc1eb4c410cffef74233ed42">ocs_audio</a>),
<a name="l00300"></a>00300 .<a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">ocs_audio</a>(<a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">ocs_audio</a>),
<a name="l00301"></a>00301
<a name="l00302"></a>00302 .<a class="code" href="classsound__channel.html#a294f6ae6cf54475dbe2c69fcf2176118">ocs_audio</a>(<a class="code" href="classocs__audio.html#a750238793e96b26829bdc3023b90fade">dma_con</a>[<span class="vhdllogic">9</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a750238793e96b26829bdc3023b90fade">dma_con</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b1</span>),
<a name="l00303"></a>00303 .<a class="code" href="classsound__channel.html#a6d7ddd465852ad8b6d4fa95d873f0e9b">ocs_audio</a>(<a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>[<span class="vhdllogic">2</span>]),
<a name="l00304"></a>00304 .<a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">ocs_audio</a>(<a class="code" href="classocs__audio.html#af65d0b8a41fc76704f366fb0e5260a3d">dma_address2</a>),
<a name="l00305"></a>00305 .<a class="code" href="classsound__channel.html#a1423460c5a14cbf8ffbce10972a9da6f">ocs_audio</a>(<a class="code" href="classocs__audio.html#a35bacd9ff4b892dec459aa3e2aa70a9a">selected_channel</a> == <span class="vhdllogic">2'd2</span> && <a class="code" href="classocs__audio.html#a3a6dd22e25598af04f0158df2e738699">ACK_I</a> == <span class="vhdllogic">1'b1</span>),
<a name="l00306"></a>00306 .<a class="code" href="classsound__channel.html#a602d030cee631a5b4a62d59c3e1bc8f3">ocs_audio</a>(<a class="code" href="classocs__audio.html#a03893514f2c9410d739ba5d9468a1a0e">master_DAT_I</a>),
<a name="l00307"></a>00307
<a name="l00308"></a>00308 .<a class="code" href="classsound__channel.html#a530aba2e801dfc325ab1f6839a334771">ocs_audio</a>(<a class="code" href="classocs__audio.html#a7ff807f8ffd079b0878f3d82df4d8cfa">write_ena2</a>),
<a name="l00309"></a>00309 .<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">ocs_audio</a>(<a class="code" href="classocs__audio.html#a07ba50b306bd2f365bf2271cad9e7b67">write_address2</a>),
<a name="l00310"></a>00310 .<a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">ocs_audio</a>(<a class="code" href="classocs__audio.html#a23d42b1df6732b104ea1c50d0a184daf">write_data2</a>),
<a name="l00311"></a>00311 .<a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">ocs_audio</a>(<a class="code" href="classocs__audio.html#acdc1c4c8716f21c2f530ccf2d055bdd1">write_sel2</a>),
<a name="l00312"></a>00312
<a name="l00313"></a>00313 .<a class="code" href="classsound__channel.html#a82c5e63193adbf3a3226f403f57c6bbd">ocs_audio</a>(<a class="code" href="classocs__audio.html#a3509e851abb62f3296616eeb887b7ee1">audio_irq</a>[<span class="vhdllogic">2</span>]),
<a name="l00314"></a>00314
<a name="l00315"></a>00315 .<a class="code" href="classsound__channel.html#abc3bcbef38ae211f9731ebf065038c9a">ocs_audio</a>(<a class="code" href="classocs__audio.html#ae0953a48b95da59940df39659ef26c69">channel2_volume</a>),
<a name="l00316"></a>00316 .<a class="code" href="classsound__channel.html#a0bf609352aecc9aab306f8b86d76cb22">ocs_audio</a>(<a class="code" href="classocs__audio.html#aac650cd4f6725e08265af77cf45b3df9">sample2</a>),
<a name="l00317"></a>00317 .<a class="code" href="classsound__channel.html#a92e6c18822d672056333a5be616746aa">ocs_audio</a>(<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b1</span>),
<a name="l00318"></a>00318 .<a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">ocs_audio</a>(<a class="code" href="classocs__audio.html#a07ff9efd26a7dc4dca9ff1a07920f142">channel2_data</a>),
<a name="l00319"></a>00319 .<a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">ocs_audio</a>(<a class="code" href="classocs__audio.html#a07f8adc5059172d3986a060f7a19e4d7">channel2_update</a>)
<a name="l00320"></a>00320 );
<a name="l00321"></a>00321
<a name="l00322"></a>00322 <span class="keyword">//****************** Channel 3</span>
<a name="l00323"></a><a class="code" href="classocs__audio.html#a67292bec2fed5d4e8c18889b9a9f441e">00323</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">6</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a67292bec2fed5d4e8c18889b9a9f441e">channel3_volume</a>;
<a name="l00324"></a><a class="code" href="classocs__audio.html#ac58f33429bedea3e10c9110590795dfa">00324</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#ac58f33429bedea3e10c9110590795dfa">channel3_data</a>;
<a name="l00325"></a><a class="code" href="classocs__audio.html#a6334edee443a2bfe59636459228ab21b">00325</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a6334edee443a2bfe59636459228ab21b">channel3_update</a>;
<a name="l00326"></a><a class="code" href="classocs__audio.html#a357e85bd8d327ce5e528f6b74f0601c8">00326</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a357e85bd8d327ce5e528f6b74f0601c8">dma_address3</a>;
<a name="l00327"></a>00327
<a name="l00328"></a><a class="code" href="classocs__audio.html#aa654090f3720d1d77f6f32856ff3a2c7">00328</a> <span class="vhdlkeyword">wire</span> <a class="code" href="classocs__audio.html#aa654090f3720d1d77f6f32856ff3a2c7">write_ena_extern3</a>;
<a name="l00329"></a>00329 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#aa654090f3720d1d77f6f32856ff3a2c7">write_ena_extern3</a> = (<a class="code" href="classocs__audio.html#afe95b351992b1ed1992ff168f3d8eaef">CYC_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a1f69eb4aa13e76303090f907e90c4a6a">STB_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#ac469ca32cac04d1ba95c2aa6673fdd3a">WE_I</a> == <span class="vhdllogic">1'b1</span> &&
<a name="l00330"></a>00330 ( { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0D0</span> || { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0D4</span> || { <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0D8</span>) );
<a name="l00331"></a><a class="code" href="classocs__audio.html#afd1edf93e7ebb3df246ec3780d70dc0d">00331</a> <span class="vhdlkeyword">wire</span> <a class="code" href="classocs__audio.html#afd1edf93e7ebb3df246ec3780d70dc0d">write_ena3</a>;
<a name="l00332"></a>00332 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#afd1edf93e7ebb3df246ec3780d70dc0d">write_ena3</a> = ((<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b1</span>) && (<a class="code" href="classocs__audio.html#a07f8adc5059172d3986a060f7a19e4d7">channel2_update</a> == <span class="vhdllogic">2'b10</span> || <a class="code" href="classocs__audio.html#a07f8adc5059172d3986a060f7a19e4d7">channel2_update</a> == <span class="vhdllogic">2'b11</span>)) || <a class="code" href="classocs__audio.html#aa654090f3720d1d77f6f32856ff3a2c7">write_ena_extern3</a>;
<a name="l00333"></a>00333
<a name="l00334"></a><a class="code" href="classocs__audio.html#a3b594b840cf240d047aefada7b229e65">00334</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a3b594b840cf240d047aefada7b229e65">write_address3</a>;
<a name="l00335"></a>00335 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a3b594b840cf240d047aefada7b229e65">write_address3</a> =
<a name="l00336"></a>00336 <a class="code" href="classocs__audio.html#aa654090f3720d1d77f6f32856ff3a2c7">write_ena_extern3</a> ? (
<a name="l00337"></a>00337 ({ <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0D0</span>) ? <span class="vhdllogic">2'd0</span> :
<a name="l00338"></a>00338 ({ <a class="code" href="classocs__audio.html#af1618e09a2218ba068a7a8583caa8f2f">ADR_I</a>, <span class="vhdllogic">2'b0</span> } == <span class="vhdllogic">9'h0D4</span>) ? <span class="vhdllogic">2'd1</span> :
<a name="l00339"></a>00339 <span class="vhdllogic">2'd2</span>
<a name="l00340"></a>00340 ) :
<a name="l00341"></a>00341 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b0</span>) ? <span class="vhdllogic">2'd2</span> :
<a name="l00342"></a>00342 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b0</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">2'd1</span> :
<a name="l00343"></a>00343 (<a class="code" href="classocs__audio.html#a07f8adc5059172d3986a060f7a19e4d7">channel2_update</a> == <span class="vhdllogic">2'b10</span>) ? <span class="vhdllogic">2'd2</span> :
<a name="l00344"></a>00344 <span class="vhdllogic">2'd1</span>;
<a name="l00345"></a>00345
<a name="l00346"></a><a class="code" href="classocs__audio.html#a4ee301b505568256b9ed61ec294b6b5e">00346</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a4ee301b505568256b9ed61ec294b6b5e">write_sel3</a>;
<a name="l00347"></a>00347 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a4ee301b505568256b9ed61ec294b6b5e">write_sel3</a> =
<a name="l00348"></a>00348 <a class="code" href="classocs__audio.html#aa654090f3720d1d77f6f32856ff3a2c7">write_ena_extern3</a> ? <a class="code" href="classocs__audio.html#a1737f4657da06fa21f2668cac34c4f35">SEL_I</a> :
<a name="l00349"></a>00349 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b0</span>) ? <span class="vhdllogic">4'b1100</span> :
<a name="l00350"></a>00350 (<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b0</span> && <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b1</span>) ? <span class="vhdllogic">4'b0011</span> :
<a name="l00351"></a>00351 (<a class="code" href="classocs__audio.html#a07f8adc5059172d3986a060f7a19e4d7">channel2_update</a> == <span class="vhdllogic">2'b10</span>) ? <span class="vhdllogic">4'b1100</span> :
<a name="l00352"></a>00352 <span class="vhdllogic">4'b0011</span>;
<a name="l00353"></a>00353
<a name="l00354"></a><a class="code" href="classocs__audio.html#a89092ee01148c051cea94de26fd06e9b">00354</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classocs__audio.html#a89092ee01148c051cea94de26fd06e9b">write_data3</a>;
<a name="l00355"></a>00355 <span class="vhdlkeyword">assign</span> <a class="code" href="classocs__audio.html#a89092ee01148c051cea94de26fd06e9b">write_data3</a> =
<a name="l00356"></a>00356 <a class="code" href="classocs__audio.html#aa654090f3720d1d77f6f32856ff3a2c7">write_ena_extern3</a> ? <a class="code" href="classocs__audio.html#a258bae2cd10b2f7ac660c1fbb1cf6acb">slave_DAT_I</a> :
<a name="l00357"></a>00357 <a class="code" href="classocs__audio.html#a07ff9efd26a7dc4dca9ff1a07920f142">channel2_data</a>;
<a name="l00358"></a>00358
<a name="l00359"></a><a class="code" href="classocs__audio.html#a0f1160d557a4f647f9aaa0a7df7381a1">00359</a> <a class="code" href="classocs__audio.html#a0f1160d557a4f647f9aaa0a7df7381a1">sound_channel</a> <span class="vhdlchar">sound_channel_3</span>(
<a name="l00360"></a>00360 .<a class="code" href="classsound__channel.html#ae53dfe2c9189507774703ce830415ec9">ocs_audio</a>(<a class="code" href="classsound__channel.html#ae53dfe2c9189507774703ce830415ec9">ocs_audio</a>),
<a name="l00361"></a>00361 .<a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">ocs_audio</a>(<a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">ocs_audio</a>),
<a name="l00362"></a>00362
<a name="l00363"></a>00363 .<a class="code" href="classsound__channel.html#a5d1b8d79fc1eb4c410cffef74233ed42">ocs_audio</a>(<a class="code" href="classsound__channel.html#a5d1b8d79fc1eb4c410cffef74233ed42">ocs_audio</a>),
<a name="l00364"></a>00364 .<a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">ocs_audio</a>(<a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">ocs_audio</a>),
<a name="l00365"></a>00365
<a name="l00366"></a>00366 .<a class="code" href="classsound__channel.html#a294f6ae6cf54475dbe2c69fcf2176118">ocs_audio</a>(<a class="code" href="classocs__audio.html#a750238793e96b26829bdc3023b90fade">dma_con</a>[<span class="vhdllogic">9</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a750238793e96b26829bdc3023b90fade">dma_con</a>[<span class="vhdllogic">3</span>] == <span class="vhdllogic">1'b1</span>),
<a name="l00367"></a>00367 .<a class="code" href="classsound__channel.html#a6d7ddd465852ad8b6d4fa95d873f0e9b">ocs_audio</a>(<a class="code" href="classocs__audio.html#a8c12825df383373a855d3a4db90817d4">dma_reqs</a>[<span class="vhdllogic">3</span>]),
<a name="l00368"></a>00368 .<a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">ocs_audio</a>(<a class="code" href="classocs__audio.html#a357e85bd8d327ce5e528f6b74f0601c8">dma_address3</a>),
<a name="l00369"></a>00369 .<a class="code" href="classsound__channel.html#a1423460c5a14cbf8ffbce10972a9da6f">ocs_audio</a>(<a class="code" href="classocs__audio.html#a35bacd9ff4b892dec459aa3e2aa70a9a">selected_channel</a> == <span class="vhdllogic">2'd3</span> && <a class="code" href="classocs__audio.html#a3a6dd22e25598af04f0158df2e738699">ACK_I</a> == <span class="vhdllogic">1'b1</span>),
<a name="l00370"></a>00370 .<a class="code" href="classsound__channel.html#a602d030cee631a5b4a62d59c3e1bc8f3">ocs_audio</a>(<a class="code" href="classocs__audio.html#a03893514f2c9410d739ba5d9468a1a0e">master_DAT_I</a>),
<a name="l00371"></a>00371
<a name="l00372"></a>00372 .<a class="code" href="classsound__channel.html#a530aba2e801dfc325ab1f6839a334771">ocs_audio</a>(<a class="code" href="classocs__audio.html#afd1edf93e7ebb3df246ec3780d70dc0d">write_ena3</a>),
<a name="l00373"></a>00373 .<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">ocs_audio</a>(<a class="code" href="classocs__audio.html#a3b594b840cf240d047aefada7b229e65">write_address3</a>),
<a name="l00374"></a>00374 .<a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">ocs_audio</a>(<a class="code" href="classocs__audio.html#a89092ee01148c051cea94de26fd06e9b">write_data3</a>),
<a name="l00375"></a>00375 .<a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">ocs_audio</a>(<a class="code" href="classocs__audio.html#a4ee301b505568256b9ed61ec294b6b5e">write_sel3</a>),
<a name="l00376"></a>00376
<a name="l00377"></a>00377 .<a class="code" href="classsound__channel.html#a82c5e63193adbf3a3226f403f57c6bbd">ocs_audio</a>(<a class="code" href="classocs__audio.html#a3509e851abb62f3296616eeb887b7ee1">audio_irq</a>[<span class="vhdllogic">3</span>]),
<a name="l00378"></a>00378
<a name="l00379"></a>00379 .<a class="code" href="classsound__channel.html#abc3bcbef38ae211f9731ebf065038c9a">ocs_audio</a>(<a class="code" href="classocs__audio.html#a67292bec2fed5d4e8c18889b9a9f441e">channel3_volume</a>),
<a name="l00380"></a>00380 .<a class="code" href="classsound__channel.html#a0bf609352aecc9aab306f8b86d76cb22">ocs_audio</a>(<a class="code" href="classocs__audio.html#a5ff40efc660cf416ab60702f63dd3c61">sample3</a>),
<a name="l00381"></a>00381 .<a class="code" href="classsound__channel.html#a92e6c18822d672056333a5be616746aa">ocs_audio</a>(<a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">3</span>] == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a5ea5d7c095138f5df4ac41bc4194be08">adk_con</a>[<span class="vhdllogic">7</span>] == <span class="vhdllogic">1'b1</span>),
<a name="l00382"></a>00382 .<a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">ocs_audio</a>(<a class="code" href="classocs__audio.html#ac58f33429bedea3e10c9110590795dfa">channel3_data</a>),
<a name="l00383"></a>00383 .<a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">ocs_audio</a>(<a class="code" href="classocs__audio.html#a6334edee443a2bfe59636459228ab21b">channel3_update</a>)
<a name="l00384"></a>00384 );
<a name="l00385"></a>00385
<a name="l00386"></a><a class="code" href="classocs__audio.html#a6d9842817cb37dd153604a8cb0e862c4">00386</a> <span class="vhdlkeyword">always</span> @(<span class="vhdlkeyword">posedge</span> <a class="code" href="classocs__audio.html#ab593e3c759258db9e38bb0c852535030">CLK_I</a> <span class="vhdlkeyword">or</span> <span class="vhdlkeyword">negedge</span> <a class="code" href="classocs__audio.html#a51d3a1738784a1c6f89d43d170b0ba81">reset_n</a>) <span class="vhdlkeyword">begin</span>
<a name="l00387"></a>00387 <span class="vhdlkeyword">if</span>(<a class="code" href="classocs__audio.html#a51d3a1738784a1c6f89d43d170b0ba81">reset_n</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00388"></a>00388 <a class="code" href="classocs__audio.html#a952e9a2a0154ec053fb2e49ea081501f">CYC_O</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00389"></a>00389 <a class="code" href="classocs__audio.html#aefb67681455aa4a72ecadb980f59670e">STB_O</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00390"></a>00390 <a class="code" href="classocs__audio.html#af7903e7671c8b54e20446f767f4340c6">ACK_O</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00391"></a>00391 <span class="vhdlkeyword">end</span>
<a name="l00392"></a>00392 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span>
<a name="l00393"></a>00393 <span class="vhdlkeyword">if</span>(<a class="code" href="classocs__audio.html#af7903e7671c8b54e20446f767f4340c6">ACK_O</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00394"></a>00394 <a class="code" href="classocs__audio.html#af7903e7671c8b54e20446f767f4340c6">ACK_O</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00395"></a>00395 <span class="vhdlkeyword">end</span>
<a name="l00396"></a>00396 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classocs__audio.html#a5fbbc733c0087f24168613c11cad128f">write_ena_extern0</a> == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a16310f1049fa3feb7911b43de915ef45">write_ena_extern1</a> == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#a05e90cab8055c9d1d593060517c6b0d3">write_ena_extern2</a> == <span class="vhdllogic">1'b1</span> || <a class="code" href="classocs__audio.html#aa654090f3720d1d77f6f32856ff3a2c7">write_ena_extern3</a> == <span class="vhdllogic">1'b1</span> ||
<a name="l00397"></a>00397 (<a class="code" href="classocs__audio.html#afe95b351992b1ed1992ff168f3d8eaef">CYC_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a1f69eb4aa13e76303090f907e90c4a6a">STB_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#ac469ca32cac04d1ba95c2aa6673fdd3a">WE_I</a> == <span class="vhdllogic">1'b0</span>))
<a name="l00398"></a>00398 <span class="vhdlkeyword">begin</span>
<a name="l00399"></a>00399 <a class="code" href="classocs__audio.html#af7903e7671c8b54e20446f767f4340c6">ACK_O</a> <= <span class="vhdllogic">1'b1</span>;
<a name="l00400"></a>00400 <span class="vhdlkeyword">end</span>
<a name="l00401"></a>00401
<a name="l00402"></a>00402 <span class="vhdlkeyword">if</span>(<a class="code" href="classocs__audio.html#a952e9a2a0154ec053fb2e49ea081501f">CYC_O</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classocs__audio.html#aefb67681455aa4a72ecadb980f59670e">STB_O</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classocs__audio.html#a34153e1153cc27f2ffb5017b9b9afbd3">dma_req</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00403"></a>00403 <a class="code" href="classocs__audio.html#a952e9a2a0154ec053fb2e49ea081501f">CYC_O</a> <= <span class="vhdllogic">1'b1</span>;
<a name="l00404"></a>00404 <a class="code" href="classocs__audio.html#aefb67681455aa4a72ecadb980f59670e">STB_O</a> <= <span class="vhdllogic">1'b1</span>;
<a name="l00405"></a>00405 <span class="vhdlkeyword">end</span>
<a name="l00406"></a>00406 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classocs__audio.html#a952e9a2a0154ec053fb2e49ea081501f">CYC_O</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#aefb67681455aa4a72ecadb980f59670e">STB_O</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classocs__audio.html#a3a6dd22e25598af04f0158df2e738699">ACK_I</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00407"></a>00407 <a class="code" href="classocs__audio.html#a952e9a2a0154ec053fb2e49ea081501f">CYC_O</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00408"></a>00408 <a class="code" href="classocs__audio.html#aefb67681455aa4a72ecadb980f59670e">STB_O</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00409"></a>00409 <span class="vhdlkeyword">end</span>
<a name="l00410"></a>00410
<a name="l00411"></a>00411 <span class="vhdlkeyword">end</span>
<a name="l00412"></a>00412 <span class="vhdlkeyword">end</span>
<a name="l00413"></a>00413
<a name="l00414"></a>00414 <span class="vhdlkeyword">endmodule</span>
<a name="l00415"></a>00415
<a name="l00416"></a>00416 <span class="keyword">/*! \brief Single audio channel.</span>
<a name="l00417"></a>00417 <span class="keyword"> */</span>
<a name="l00418"></a><a class="code" href="classsound__channel.html">00418</a> <span class="vhdlkeyword">module</span> <a class="code" href="classocs__audio.html#a0f1160d557a4f647f9aaa0a7df7381a1">sound_channel</a>(
<a name="l00419"></a><a class="code" href="classsound__channel.html#ae53dfe2c9189507774703ce830415ec9">00419</a> <span class="vhdlkeyword">input</span> <a class="code" href="classsound__channel.html#ae53dfe2c9189507774703ce830415ec9">CLK_I</a>,
<a name="l00420"></a><a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">00420</a> <span class="vhdlkeyword">input</span> <a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">reset_n</a>,
<a name="l00421"></a>00421
<a name="l00422"></a>00422 <span class="keyword">// color pulse</span>
<a name="l00423"></a><a class="code" href="classsound__channel.html#a5d1b8d79fc1eb4c410cffef74233ed42">00423</a> <span class="vhdlkeyword">input</span> <a class="code" href="classsound__channel.html#a5d1b8d79fc1eb4c410cffef74233ed42">pulse_color</a>,
<a name="l00424"></a><a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">00424</a> <span class="vhdlkeyword">input</span> <a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">line_start</a>,
<a name="l00425"></a>00425
<a name="l00426"></a><a class="code" href="classsound__channel.html#a294f6ae6cf54475dbe2c69fcf2176118">00426</a> <span class="vhdlkeyword">input</span> <a class="code" href="classsound__channel.html#a294f6ae6cf54475dbe2c69fcf2176118">dma_ena</a>,
<a name="l00427"></a><a class="code" href="classsound__channel.html#a6d7ddd465852ad8b6d4fa95d873f0e9b">00427</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classsound__channel.html#a6d7ddd465852ad8b6d4fa95d873f0e9b">dma_req</a>,
<a name="l00428"></a><a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">00428</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">dma_address</a>,
<a name="l00429"></a><a class="code" href="classsound__channel.html#a1423460c5a14cbf8ffbce10972a9da6f">00429</a> <span class="vhdlkeyword">input</span> <a class="code" href="classsound__channel.html#a1423460c5a14cbf8ffbce10972a9da6f">dma_done</a>,
<a name="l00430"></a><a class="code" href="classsound__channel.html#a602d030cee631a5b4a62d59c3e1bc8f3">00430</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#a602d030cee631a5b4a62d59c3e1bc8f3">dma_data</a>,
<a name="l00431"></a>00431
<a name="l00432"></a><a class="code" href="classsound__channel.html#a530aba2e801dfc325ab1f6839a334771">00432</a> <span class="vhdlkeyword">input</span> <a class="code" href="classsound__channel.html#a530aba2e801dfc325ab1f6839a334771">write_ena</a>,
<a name="l00433"></a>00433 <span class="keyword">// 0: AUDxLCH, AUDxLCL,</span>
<a name="l00434"></a>00434 <span class="keyword">// 1: AUDxLEN, AUDxPER,</span>
<a name="l00435"></a>00435 <span class="keyword">// 2: AUDxVOL, AUDxDAT,</span>
<a name="l00436"></a><a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">00436</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a>,
<a name="l00437"></a><a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">00437</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>,
<a name="l00438"></a><a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">00438</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>,
<a name="l00439"></a>00439
<a name="l00440"></a><a class="code" href="classsound__channel.html#a82c5e63193adbf3a3226f403f57c6bbd">00440</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classsound__channel.html#a82c5e63193adbf3a3226f403f57c6bbd">irq</a>,
<a name="l00441"></a>00441
<a name="l00442"></a>00442 <span class="keyword">// sound interface</span>
<a name="l00443"></a>00443 <span class="keyword">// 0-63,64 only</span>
<a name="l00444"></a><a class="code" href="classsound__channel.html#abc3bcbef38ae211f9731ebf065038c9a">00444</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">6</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#abc3bcbef38ae211f9731ebf065038c9a">volume</a>,
<a name="l00445"></a><a class="code" href="classsound__channel.html#a0bf609352aecc9aab306f8b86d76cb22">00445</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#a0bf609352aecc9aab306f8b86d76cb22">sample</a>,
<a name="l00446"></a><a class="code" href="classsound__channel.html#a92e6c18822d672056333a5be616746aa">00446</a> <span class="vhdlkeyword">input</span> <a class="code" href="classsound__channel.html#a92e6c18822d672056333a5be616746aa">is_modulator_channel</a>,
<a name="l00447"></a>00447 <span class="keyword">// volume[6:0]: modulation</span>
<a name="l00448"></a>00448 <span class="keyword">// period[15:0]: modulation</span>
<a name="l00449"></a><a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">00449</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">data</a>,
<a name="l00450"></a>00450 <span class="keyword">// 2'b01: 8 bit sample update only</span>
<a name="l00451"></a>00451 <span class="keyword">// 2'b10: 8 bit sample and even word update</span>
<a name="l00452"></a>00452 <span class="keyword">// 2'b11: 8 bit sample and odd word update</span>
<a name="l00453"></a><a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">00453</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">data_update</a>
<a name="l00454"></a>00454 );
<a name="l00455"></a>00455
<a name="l00456"></a><a class="code" href="classsound__channel.html#ad788d518965a2fab1e574505e820ee32">00456</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#ad788d518965a2fab1e574505e820ee32">location</a>;
<a name="l00457"></a><a class="code" href="classsound__channel.html#ad569e93f4272e323100106dc4e32e4e3">00457</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#ad569e93f4272e323100106dc4e32e4e3">length</a>;
<a name="l00458"></a><a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">00458</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">16</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a>;
<a name="l00459"></a><a class="code" href="classsound__channel.html#adfae8b8deb4a1783076c93bbe77effd5">00459</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#adfae8b8deb4a1783076c93bbe77effd5">period</a>;
<a name="l00460"></a><a class="code" href="classsound__channel.html#a21c1fad29a86a0ae6516e67c551320e1">00460</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#a21c1fad29a86a0ae6516e67c551320e1">period_left</a>;
<a name="l00461"></a><a class="code" href="classsound__channel.html#a6c1aefe74f031e4f44c067e70b9727a8">00461</a> <span class="vhdlkeyword">reg</span> <a class="code" href="classsound__channel.html#a6c1aefe74f031e4f44c067e70b9727a8">even_word</a>;
<a name="l00462"></a><a class="code" href="classsound__channel.html#a21cca44a11313299679b9349a516201a">00462</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#a21cca44a11313299679b9349a516201a">data2</a>;
<a name="l00463"></a><a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">00463</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a>;
<a name="l00464"></a><a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">00464</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a>;
<a name="l00465"></a>00465
<a name="l00466"></a><a class="code" href="classsound__channel.html#a7ac4e858cc79883b876723eeba5c64c8">00466</a> <span class="vhdlkeyword">parameter</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>]
<a name="l00467"></a>00467 <a class="code" href="classsound__channel.html#a6734638c3634877a6a578312b338e75f">S_IDLE</a> = <span class="vhdllogic">2'd0</span>,
<a name="l00468"></a>00468 <a class="code" href="classsound__channel.html#a67a782802572c21e548d3b8883dde883">S_DIRECT</a> = <span class="vhdllogic">2'd1</span>,
<a name="l00469"></a>00469 <a class="code" href="classsound__channel.html#a7ac4e858cc79883b876723eeba5c64c8">S_DMA</a> = <span class="vhdllogic">2'd2</span>;
<a name="l00470"></a>00470
<a name="l00471"></a><a class="code" href="classsound__channel.html#a4c5c0deca66a044cd69baa716e426ce2">00471</a> <span class="vhdlkeyword">always</span> @(<span class="vhdlkeyword">posedge</span> <a class="code" href="classsound__channel.html#ae53dfe2c9189507774703ce830415ec9">CLK_I</a> <span class="vhdlkeyword">or</span> <span class="vhdlkeyword">negedge</span> <a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">reset_n</a>) <span class="vhdlkeyword">begin</span>
<a name="l00472"></a>00472 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#aafa0f27649ddf40d65427a9e5aca88ea">reset_n</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00473"></a>00473 <a class="code" href="classsound__channel.html#a6d7ddd465852ad8b6d4fa95d873f0e9b">dma_req</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00474"></a>00474 <a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">dma_address</a> <= <span class="vhdllogic">32'd0</span>;
<a name="l00475"></a>00475 <a class="code" href="classsound__channel.html#a82c5e63193adbf3a3226f403f57c6bbd">irq</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00476"></a>00476 <a class="code" href="classsound__channel.html#abc3bcbef38ae211f9731ebf065038c9a">volume</a> <= <span class="vhdllogic">7'd0</span>;
<a name="l00477"></a>00477 <a class="code" href="classsound__channel.html#a0bf609352aecc9aab306f8b86d76cb22">sample</a> <= <span class="vhdllogic">8'd0</span>;
<a name="l00478"></a>00478 <a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">data</a> <= <span class="vhdllogic">16'd0</span>;
<a name="l00479"></a>00479 <a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">data_update</a> <= <span class="vhdllogic">2'b00</span>;
<a name="l00480"></a>00480
<a name="l00481"></a>00481 <a class="code" href="classsound__channel.html#ad788d518965a2fab1e574505e820ee32">location</a> <= <span class="vhdllogic">32'd0</span>;
<a name="l00482"></a>00482 <a class="code" href="classsound__channel.html#ad569e93f4272e323100106dc4e32e4e3">length</a> <= <span class="vhdllogic">16'd0</span>;
<a name="l00483"></a>00483 <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a> <= <span class="vhdllogic">17'd0</span>;
<a name="l00484"></a>00484 <a class="code" href="classsound__channel.html#adfae8b8deb4a1783076c93bbe77effd5">period</a> <= <span class="vhdllogic">16'd0</span>;
<a name="l00485"></a>00485 <a class="code" href="classsound__channel.html#a21c1fad29a86a0ae6516e67c551320e1">period_left</a> <= <span class="vhdllogic">16'd0</span>;
<a name="l00486"></a>00486 <a class="code" href="classsound__channel.html#a6c1aefe74f031e4f44c067e70b9727a8">even_word</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00487"></a>00487 <a class="code" href="classsound__channel.html#a21cca44a11313299679b9349a516201a">data2</a> <= <span class="vhdllogic">16'd0</span>;
<a name="l00488"></a>00488 <a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a> <= <span class="vhdllogic">2'd0</span>;
<a name="l00489"></a>00489 <a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> <= <a class="code" href="classsound__channel.html#a6734638c3634877a6a578312b338e75f">S_IDLE</a>;
<a name="l00490"></a>00490 <span class="vhdlkeyword">end</span>
<a name="l00491"></a>00491 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span>
<a name="l00492"></a>00492
<a name="l00493"></a>00493 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a82c5e63193adbf3a3226f403f57c6bbd">irq</a> == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#a82c5e63193adbf3a3226f403f57c6bbd">irq</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00494"></a>00494 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">data_update</a> != <span class="vhdllogic">2'b00</span>) <a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">data_update</a> <= <span class="vhdllogic">2'b00</span>;
<a name="l00495"></a>00495
<a name="l00496"></a>00496 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> == <a class="code" href="classsound__channel.html#a6734638c3634877a6a578312b338e75f">S_IDLE</a> && <a class="code" href="classsound__channel.html#a294f6ae6cf54475dbe2c69fcf2176118">dma_ena</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classsound__channel.html#a530aba2e801dfc325ab1f6839a334771">write_ena</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd2</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] != <span class="vhdllogic">2'b00</span>) <span class="vhdlkeyword">begin</span>
<a name="l00497"></a>00497 <a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> <= <a class="code" href="classsound__channel.html#a67a782802572c21e548d3b8883dde883">S_DIRECT</a>;
<a name="l00498"></a>00498 <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a> <= <span class="vhdllogic">17'd2</span>;
<a name="l00499"></a>00499 <a class="code" href="classsound__channel.html#a21c1fad29a86a0ae6516e67c551320e1">period_left</a> <= <a class="code" href="classsound__channel.html#adfae8b8deb4a1783076c93bbe77effd5">period</a>;
<a name="l00500"></a>00500 <a class="code" href="classsound__channel.html#a6c1aefe74f031e4f44c067e70b9727a8">even_word</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00501"></a>00501 <a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a> <= <span class="vhdllogic">2'd0</span>;
<a name="l00502"></a>00502 <span class="vhdlkeyword">end</span>
<a name="l00503"></a>00503 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>((<a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> == <a class="code" href="classsound__channel.html#a67a782802572c21e548d3b8883dde883">S_DIRECT</a> && <a class="code" href="classsound__channel.html#a294f6ae6cf54475dbe2c69fcf2176118">dma_ena</a> == <span class="vhdllogic">1'b1</span>) || (<a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> == <a class="code" href="classsound__channel.html#a7ac4e858cc79883b876723eeba5c64c8">S_DMA</a> && <a class="code" href="classsound__channel.html#a294f6ae6cf54475dbe2c69fcf2176118">dma_ena</a> == <span class="vhdllogic">1'b0</span>)) <span class="vhdlkeyword">begin</span>
<a name="l00504"></a>00504 <a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> <= <a class="code" href="classsound__channel.html#a6734638c3634877a6a578312b338e75f">S_IDLE</a>;
<a name="l00505"></a>00505 <span class="vhdlkeyword">end</span>
<a name="l00506"></a>00506 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> == <a class="code" href="classsound__channel.html#a6734638c3634877a6a578312b338e75f">S_IDLE</a> && <a class="code" href="classsound__channel.html#a294f6ae6cf54475dbe2c69fcf2176118">dma_ena</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">line_start</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classsound__channel.html#ad569e93f4272e323100106dc4e32e4e3">length</a> > <span class="vhdllogic">17'd0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00507"></a>00507 <a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> <= <a class="code" href="classsound__channel.html#a7ac4e858cc79883b876723eeba5c64c8">S_DMA</a>;
<a name="l00508"></a>00508 <a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">dma_address</a> <= <a class="code" href="classsound__channel.html#ad788d518965a2fab1e574505e820ee32">location</a>;
<a name="l00509"></a>00509 <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a> <= { <a class="code" href="classsound__channel.html#ad569e93f4272e323100106dc4e32e4e3">length</a>, <span class="vhdllogic">1'b0</span> };
<a name="l00510"></a>00510 <a class="code" href="classsound__channel.html#a21c1fad29a86a0ae6516e67c551320e1">period_left</a> <= <a class="code" href="classsound__channel.html#adfae8b8deb4a1783076c93bbe77effd5">period</a>;
<a name="l00511"></a>00511 <a class="code" href="classsound__channel.html#a82c5e63193adbf3a3226f403f57c6bbd">irq</a> <= <span class="vhdllogic">1'b1</span>;
<a name="l00512"></a>00512 <a class="code" href="classsound__channel.html#a6c1aefe74f031e4f44c067e70b9727a8">even_word</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00513"></a>00513 <a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a> <= <span class="vhdllogic">2'd0</span>;
<a name="l00514"></a>00514
<a name="l00515"></a>00515 <a class="code" href="classsound__channel.html#a6d7ddd465852ad8b6d4fa95d873f0e9b">dma_req</a> <= <span class="vhdllogic">1'b1</span>;
<a name="l00516"></a>00516 <span class="vhdlkeyword">end</span>
<a name="l00517"></a>00517 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> == <a class="code" href="classsound__channel.html#a7ac4e858cc79883b876723eeba5c64c8">S_DMA</a> && <a class="code" href="classsound__channel.html#a5f0be7d24c202efecf1e88b656488085">line_start</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a> < <span class="vhdllogic">2'd2</span>) <span class="vhdlkeyword">begin</span>
<a name="l00518"></a>00518 <a class="code" href="classsound__channel.html#a6d7ddd465852ad8b6d4fa95d873f0e9b">dma_req</a> <= <span class="vhdllogic">1'b1</span>;
<a name="l00519"></a>00519 <span class="vhdlkeyword">end</span>
<a name="l00520"></a>00520 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> == <a class="code" href="classsound__channel.html#a7ac4e858cc79883b876723eeba5c64c8">S_DMA</a> && <a class="code" href="classsound__channel.html#a1423460c5a14cbf8ffbce10972a9da6f">dma_done</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00521"></a>00521 <a class="code" href="classsound__channel.html#a6d7ddd465852ad8b6d4fa95d873f0e9b">dma_req</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00522"></a>00522 <a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a> <= <a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a> + <span class="vhdllogic">2'd1</span>;
<a name="l00523"></a>00523 <a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">dma_address</a> <= <a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">dma_address</a> + <span class="vhdllogic">32'd2</span>;
<a name="l00524"></a>00524 <span class="vhdlkeyword">end</span>
<a name="l00525"></a>00525
<a name="l00526"></a>00526 <span class="vhdlkeyword">if</span>((<a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> == <a class="code" href="classsound__channel.html#a67a782802572c21e548d3b8883dde883">S_DIRECT</a> || <a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> == <a class="code" href="classsound__channel.html#a7ac4e858cc79883b876723eeba5c64c8">S_DMA</a>) && <a class="code" href="classsound__channel.html#a5d1b8d79fc1eb4c410cffef74233ed42">pulse_color</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00527"></a>00527 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a21c1fad29a86a0ae6516e67c551320e1">period_left</a> > <span class="vhdllogic">16'd1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00528"></a>00528 <a class="code" href="classsound__channel.html#a21c1fad29a86a0ae6516e67c551320e1">period_left</a> <= <a class="code" href="classsound__channel.html#a21c1fad29a86a0ae6516e67c551320e1">period_left</a> - <span class="vhdllogic">16'd1</span>;
<a name="l00529"></a>00529 <span class="vhdlkeyword">end</span>
<a name="l00530"></a>00530 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span>
<a name="l00531"></a>00531 <a class="code" href="classsound__channel.html#a21c1fad29a86a0ae6516e67c551320e1">period_left</a> <= <a class="code" href="classsound__channel.html#adfae8b8deb4a1783076c93bbe77effd5">period</a>;
<a name="l00532"></a>00532
<a name="l00533"></a>00533 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a92e6c18822d672056333a5be616746aa">is_modulator_channel</a> == <span class="vhdllogic">1'b0</span>) <a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">data_update</a> <= <span class="vhdllogic">2'b01</span>;
<a name="l00534"></a>00534 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a6c1aefe74f031e4f44c067e70b9727a8">even_word</a> == <span class="vhdllogic">1'b0</span>) <a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">data_update</a> <= <span class="vhdllogic">2'b10</span>;
<a name="l00535"></a>00535 <span class="vhdlkeyword">else</span> <a class="code" href="classsound__channel.html#a19bdcf8f9baa075c66ea884ef38429b1">data_update</a> <= <span class="vhdllogic">2'b11</span>;
<a name="l00536"></a>00536
<a name="l00537"></a>00537 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a92e6c18822d672056333a5be616746aa">is_modulator_channel</a> == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#a6c1aefe74f031e4f44c067e70b9727a8">even_word</a> <= ~<a class="code" href="classsound__channel.html#a6c1aefe74f031e4f44c067e70b9727a8">even_word</a>;
<a name="l00538"></a>00538
<a name="l00539"></a>00539 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b0</span>) <a class="code" href="classsound__channel.html#a0bf609352aecc9aab306f8b86d76cb22">sample</a> <= <a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">data</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">8</span>];
<a name="l00540"></a>00540 <span class="vhdlkeyword">else</span> <a class="code" href="classsound__channel.html#a0bf609352aecc9aab306f8b86d76cb22">sample</a> <= <a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">data</a>[<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>];
<a name="l00541"></a>00541
<a name="l00542"></a>00542 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a> > <span class="vhdllogic">2'd0</span> && (<a class="code" href="classsound__channel.html#a92e6c18822d672056333a5be616746aa">is_modulator_channel</a> == <span class="vhdllogic">1'b1</span> || <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span>)) <span class="vhdlkeyword">begin</span>
<a name="l00543"></a>00543 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a> == <span class="vhdllogic">2'd2</span>) <a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">data</a> <= <a class="code" href="classsound__channel.html#a21cca44a11313299679b9349a516201a">data2</a>;
<a name="l00544"></a>00544 <a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a> <= <a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a> - <span class="vhdllogic">2'd1</span>;
<a name="l00545"></a>00545 <span class="vhdlkeyword">end</span>
<a name="l00546"></a>00546
<a name="l00547"></a>00547 <span class="vhdlkeyword">if</span>((<a class="code" href="classsound__channel.html#a92e6c18822d672056333a5be616746aa">is_modulator_channel</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a> <= <span class="vhdllogic">17'd2</span>) || <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a> <= <span class="vhdllogic">17'd1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00548"></a>00548 <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a> <= <span class="vhdllogic">17'd0</span>;
<a name="l00549"></a>00549 <a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> <= <a class="code" href="classsound__channel.html#a6734638c3634877a6a578312b338e75f">S_IDLE</a>;
<a name="l00550"></a>00550 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#ade4fcb73e5db45b5f3e32f7ff1607292">state</a> == <a class="code" href="classsound__channel.html#a67a782802572c21e548d3b8883dde883">S_DIRECT</a>) <a class="code" href="classsound__channel.html#a82c5e63193adbf3a3226f403f57c6bbd">irq</a> <= <span class="vhdllogic">1'b1</span>;
<a name="l00551"></a>00551 <span class="vhdlkeyword">end</span>
<a name="l00552"></a>00552 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a92e6c18822d672056333a5be616746aa">is_modulator_channel</a> == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a> <= <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a> - <span class="vhdllogic">17'd2</span>;
<a name="l00553"></a>00553 <span class="vhdlkeyword">else</span> <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a> <= <a class="code" href="classsound__channel.html#a9677731f2c8dffd6ede9363b68954510">length_left</a> - <span class="vhdllogic">17'd1</span>;
<a name="l00554"></a>00554 <span class="vhdlkeyword">end</span>
<a name="l00555"></a>00555 <span class="vhdlkeyword">end</span>
<a name="l00556"></a>00556
<a name="l00557"></a>00557 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a530aba2e801dfc325ab1f6839a334771">write_ena</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00558"></a>00558 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd0</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#ad788d518965a2fab1e574505e820ee32">location</a>[<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <= <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>[<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>];
<a name="l00559"></a>00559 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd0</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#ad788d518965a2fab1e574505e820ee32">location</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">8</span>] <= <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">8</span>];
<a name="l00560"></a>00560 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd0</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#ad788d518965a2fab1e574505e820ee32">location</a>[<span class="vhdllogic">23</span>:<span class="vhdllogic">16</span>] <= <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>[<span class="vhdllogic">23</span>:<span class="vhdllogic">16</span>];
<a name="l00561"></a>00561 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd0</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">3</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#ad788d518965a2fab1e574505e820ee32">location</a>[<span class="vhdllogic">31</span>:<span class="vhdllogic">24</span>] <= <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>[<span class="vhdllogic">31</span>:<span class="vhdllogic">24</span>];
<a name="l00562"></a>00562 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd1</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#adfae8b8deb4a1783076c93bbe77effd5">period</a>[<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <= <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>[<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>];
<a name="l00563"></a>00563 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd1</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#adfae8b8deb4a1783076c93bbe77effd5">period</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">8</span>] <= <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">8</span>];
<a name="l00564"></a>00564 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd1</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#ad569e93f4272e323100106dc4e32e4e3">length</a>[<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <= <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>[<span class="vhdllogic">23</span>:<span class="vhdllogic">16</span>];
<a name="l00565"></a>00565 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd1</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">3</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#ad569e93f4272e323100106dc4e32e4e3">length</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">8</span>] <= <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>[<span class="vhdllogic">31</span>:<span class="vhdllogic">24</span>];
<a name="l00566"></a>00566 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd2</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">data</a>[<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <= <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>[<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>];
<a name="l00567"></a>00567 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd2</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">data</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">8</span>] <= <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">8</span>];
<a name="l00568"></a>00568 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd2</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classsound__channel.html#abc3bcbef38ae211f9731ebf065038c9a">volume</a>[<span class="vhdllogic">6</span>:<span class="vhdllogic">0</span>] <= <a class="code" href="classsound__channel.html#aaff92de30e28e1c17c64bbc88ad829af">write_data</a>[<span class="vhdllogic">22</span>:<span class="vhdllogic">16</span>];
<a name="l00569"></a>00569 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a8ebd126d4857540ac3ec54adf43e324e">write_address</a> == <span class="vhdllogic">2'd2</span> && <a class="code" href="classsound__channel.html#a4022d2301b66737d7f1a406fa56b6583">write_sel</a>[<span class="vhdllogic">3</span>] == <span class="vhdllogic">1'b1</span>) ;
<a name="l00570"></a>00570 <span class="vhdlkeyword">end</span>
<a name="l00571"></a>00571 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a1423460c5a14cbf8ffbce10972a9da6f">dma_done</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00572"></a>00572 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#ac283b2052c6bc97125a06a58113177a8">avail</a> == <span class="vhdllogic">2'd0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00573"></a>00573 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">dma_address</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b0</span>) <a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">data</a> <= <a class="code" href="classsound__channel.html#a602d030cee631a5b4a62d59c3e1bc8f3">dma_data</a>[<span class="vhdllogic">31</span>:<span class="vhdllogic">16</span>];
<a name="l00574"></a>00574 <span class="vhdlkeyword">else</span> <a class="code" href="classsound__channel.html#a89c4689d3b97619ae99f0a1d4879ac20">data</a> <= <a class="code" href="classsound__channel.html#a602d030cee631a5b4a62d59c3e1bc8f3">dma_data</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>];
<a name="l00575"></a>00575 <span class="vhdlkeyword">end</span>
<a name="l00576"></a>00576 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span>
<a name="l00577"></a>00577 <span class="vhdlkeyword">if</span>(<a class="code" href="classsound__channel.html#a369913a5f3348196af694273c4d64a5f">dma_address</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b0</span>) <a class="code" href="classsound__channel.html#a21cca44a11313299679b9349a516201a">data2</a> <= <a class="code" href="classsound__channel.html#a602d030cee631a5b4a62d59c3e1bc8f3">dma_data</a>[<span class="vhdllogic">31</span>:<span class="vhdllogic">16</span>];
<a name="l00578"></a>00578 <span class="vhdlkeyword">else</span> <a class="code" href="classsound__channel.html#a21cca44a11313299679b9349a516201a">data2</a> <= <a class="code" href="classsound__channel.html#a602d030cee631a5b4a62d59c3e1bc8f3">dma_data</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>];
<a name="l00579"></a>00579 <span class="vhdlkeyword">end</span>
<a name="l00580"></a>00580 <span class="vhdlkeyword">end</span>
<a name="l00581"></a>00581
<a name="l00582"></a>00582 <span class="vhdlkeyword">end</span>
<a name="l00583"></a>00583 <span class="vhdlkeyword">end</span>
<a name="l00584"></a>00584
<a name="l00585"></a>00585
<a name="l00586"></a>00586 <span class="vhdlkeyword">endmodule</span>
<a name="l00587"></a>00587
<a name="l00588"></a>00588
<a name="l00589"></a>00589
</pre></div></div>
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<hr class="footer"/><address class="footer"><small>Generated on Mon Dec 20 2010 21:20:18 for aoOCS by 
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.2 </small></address>
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