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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/ic/ta-if/ta_interface_ta_if.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">TA Interface (TA_IF)</h1><div class="date inPage">16 Aug 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div><div class="- topic/body concept/conbody body conbody"><p class="- topic/p p" data-ofbid="d76688e22__20250121171524">TFormat / AFormat Absolute Encoder Interface (TA-AEI)，简称 TA_IF，即 TA 绝对值编码器接口，主要用作
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Master，控制 T-Format/ A-Format 接口的绝对值编码器。Tamgawa 的编码器接口格式对应为 T-Format，Nikon 编码器接口格式对应为
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A-Format。</p><section class="- topic/section section" id="ta_interface_ta_if__section_pfq_4kk_qbc" data-ofbid="ta_interface_ta_if__section_pfq_4kk_qbc"><h2 class="- topic/title title sectiontitle">特性说明</h2>
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<ul class="- topic/ul ul" id="ta_interface_ta_if__ul_all_hlk_qbc" data-ofbid="ta_interface_ta_if__ul_all_hlk_qbc"><li class="- topic/li li" data-ofbid="d76688e30__20250121171524">支持 T-Format 和 A-Format（A-Format 只支持点对点模式）。</li><li class="- topic/li li" data-ofbid="d76688e32__20250121171524">波特率支持 2.5 Mbps/ 4 Mbps/ 6.6 Mbps/ 8 Mbps/ 16 Mbps。</li><li class="- topic/li li" data-ofbid="d76688e34__20250121171524">支持编码器绝对值位置数据解码。</li></ul>
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</section><section class="- topic/section section" id="ta_interface_ta_if__section_igv_qmk_qbc" data-ofbid="ta_interface_ta_if__section_igv_qmk_qbc"><h2 class="- topic/title title sectiontitle">原理框图</h2>
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<div class="- topic/p p" data-ofbid="d76688e42__20250121171524"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="ta_interface_ta_if__image_sk2_mnk_qbc" src="../../../images/ta_if/ta_principle.png" width="672"/></div><br/></div>
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<div class="- topic/p p" data-ofbid="d76688e45__20250121171524">外部接口说明如下：<ul class="- topic/ul ul" id="ta_interface_ta_if__ul_jcl_trw_ryb" data-ofbid="ta_interface_ta_if__ul_jcl_trw_ryb"><li class="- topic/li li" data-ofbid="d76688e48__20250121171524">
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<p class="- topic/p p" data-ofbid="d76688e50__20250121171524">TA-DE：用于驱动外部的 RS485 芯片，自动切换 Dirver/Reception 状态。</p>
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</li><li class="- topic/li li" data-ofbid="d76688e53__20250121171524">
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<p class="- topic/p p" data-ofbid="d76688e55__20250121171524">TA-DIO：输入输出数据信号。</p>
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</li></ul></div>
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</section><section class="- topic/section section" id="ta_interface_ta_if__section_ksy_lxj_syb" data-ofbid="ta_interface_ta_if__section_ksy_lxj_syb"><h2 class="- topic/title title sectiontitle">实时控制外设互联图</h2>
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<figure class="- topic/fig fig fignone" id="ta_interface_ta_if__fig_grn_kcr_5bc" data-ofbid="ta_interface_ta_if__fig_grn_kcr_5bc"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="ta_interface_ta_if__image_kzf_5rw_ryb" src="../../../images/ta_if/ta_connect_block.png" width="576"/></div><br/><figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">TA_IF 实时控制外设互联</span></figcaption></figure>
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<p class="- topic/p p" data-ofbid="d76688e69__20250121171524"><strong class="+ topic/ph hi-d/b ph b">TA_IF 输入输出管脚</strong></p>
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<p class="- topic/p p" data-ofbid="d76688e73__20250121171524">如<a class="- topic/xref xref" href="#ta_interface_ta_if__fig_grn_kcr_5bc">TA_IF 实时控制外设互联</a>所示，TA_IF 的输入输出管脚信号 TA_DE 和 TA_DIO
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复用于 ENC_IO_MUX 模块，需通过 SYS_CFG 配置寄存器 ENCODER_CFG 进行选择。其中对应关系为：</p>
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<ul class="- topic/ul ul" id="ta_interface_ta_if__ul_lzf_5rw_ryb" data-ofbid="ta_interface_ta_if__ul_lzf_5rw_ryb"><li class="- topic/li li" data-ofbid="d76688e81__20250121171524">
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<p class="- topic/p p" data-ofbid="d76688e83__20250121171524">ENC_IO0 对应 TA_DE。</p>
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</li><li class="- topic/li li" data-ofbid="d76688e86__20250121171524">
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<p class="- topic/p p" data-ofbid="d76688e88__20250121171524">ENC_IO1 对应 TA_DIO。</p>
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</li><li class="- topic/li li" data-ofbid="d76688e91__20250121171524">
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<p class="- topic/p p" data-ofbid="d76688e93__20250121171524">ENC_IO2 无对应 TA_IF 模块的信号，无需使用。</p>
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</li></ul>
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<p class="- topic/p p" data-ofbid="d76688e98__20250121171524"><strong class="+ topic/ph hi-d/b ph b">TA_IF 位置数据</strong></p>
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<p class="- topic/p p" data-ofbid="d76688e102__20250121171524">如<a class="- topic/xref xref" href="#ta_interface_ta_if__fig_grn_kcr_5bc">TA_IF 实时控制外设互联</a>所示，TA_IF 的解析所得的位置数据，可以传输到 HCL 以及
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QOUT 模块，分别用于硬件电流环的电角度计算和 QOUT 的任意分频输出。</p>
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</section></div></article></main></div>
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<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#ta_interface_ta_if__section_pfq_4kk_qbc" data-tocid="ta_interface_ta_if__section_pfq_4kk_qbc">特性说明</a></div></li><li class="section-item"><div class="section-title"><a href="#ta_interface_ta_if__section_igv_qmk_qbc" data-tocid="ta_interface_ta_if__section_igv_qmk_qbc">原理框图</a></div></li><li class="section-item"><div class="section-title"><a href="#ta_interface_ta_if__section_ksy_lxj_syb" data-tocid="ta_interface_ta_if__section_ksy_lxj_syb">实时控制外设互联图</a></div></li></ul></div>
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