Article ID: 000081033 Content Type: Troubleshooting Last Reviewed: 08/14/2014

Why are bidirectional mem_dbi_n ports created when the 'Enable DM Pins' option is selected in the Arria 10 DDR4 controller?

Environment

Quartus Edition

Quartus® II Subscription Edition

Version Found: 13.1a10

BUILT IN - ARTICLE INTRO SECOND COMPONENT

Description

You may see bidirectional mem_dbi_n ports exposed when you create an Arria® 10 DDR4 controller with the 'Enable DM pins' options selected inside the IP Catalog GUI.

In DDR4, the data mask (DM) and data bus inversion (DBI) features share the same pins, but cannot be enabled at the same time. When the DM or DBI feature is selected, the bidirectional mem_dbi_n ports will be exposed.

Resolution

Related Products

This article applies to 3 products

Intel® Arria® 10 GT FPGA

Intel® Arria® 10 GX FPGA

Intel® Arria® 10 SX SoC FPGA

Description
Resolution

Need more help?

Contact support

Give Feedback

Thank you

Disclaimer

¹

All postings and use of the content on this site are subject to Intel.com Terms of Use.

<script>var isTargetEnabled =false;</script>

<script type="text/javascript">
    var cq_tms = {
        
        wa_industry_type: "",
        wa_partner_prog: "",
        wa_subject: "",
        wa_biz_size: "",
        wa_emt_org: "",
        wa_emt_intel: "",
        wa_partner_type: "",
        wa_programidentifier: "psg",
        wa_location: "us",
        wa_language: "en",
        wa_english_title: "000081033",
        wa_content_type: "article",
        wa_intel_platform: "",
        wa_applications: "",
        wa_local: "en_US",
        wa_intel_technology: "",
        wa_system_type: "",
        wa_product_name: "",
        wa_audience: "",
        wa_life_cycle: "",
        wa_cq_url: "/content/www/us/en/support/programmable/articles/000081033.html",
        wa_page_type_micro: "mf-salesforce-article-template",
        wa_env: "prd",
        wa_cq_pub_env: "publish",
        wa_transl_status: "",
        wa_product_id: "",
        wa_software: "",
        wa_reference_design: "",
        wa_codename: "",
        wa_created_date: "1630227178268",
        wa_modified_date: "1630226206091",
        wa_off_time: "1924992000000",
        wa_ownedby: "",
        wa_managedby: "",
        wa_idz_nid : "",
        wa_event_type: "",
        wa_idz_custom_tags: "",
        wa_programming_language: "",
        wa_skill_level: "",
        wa_solution: "",
        wa_product_formFactor: "",
        wa_operating_system: "",
        wa_marketing_products: "",
        wa_ssg_third_party_prod_sys_sol: "",
        wa_upeNamespace: "",
        wa_doc_id:"",
        wa_doc_version:"",
        wa_doc_publishdate:"",
        wa_intel_prd_levels: '[{"level1":{"id":"98836","desc":"intelfpgas"},"productCategory":"rproducts"}]',
        
        wa_secondary_content_type: ""
        
        
        
    };

cq_tms.wa_tms_sync_load = "deferred";
    
    
</script>

<script>
        cq_tms["wa_support_intel_product"] = "rproducts:intelfpgas";
        cq_tms["wa_operating_system"] = "";
        cq_tms["wa_support_article_content_types"] = "troubleshooting";
        cq_tms["wa_salesforce_transl_status"] = "";
    </script>

<script>
INTEL = window.INTEL || {}; INTEL.I18n = window.INTEL.I18n ||{};
INTEL.I18n["category_virtual_assistant.vaContextMessages.exitqueue"] = "Exit Queue";
INTEL.I18n["category_virtual_assistant.vaContextMessages.waitingforliveagent"] = "Waiting for live agent";
INTEL.I18n["geoattributes.articleLocalesForModal"] = "\/cn\/zh\/,\/tw\/zh\/,\/jp\/ja\/,\/kr\/ko\/,\/de\/de\/,\/fr\/fr\/,\/it\/it\/,\/br\/pt\/,\/ru\/ru\/,\/xl\/es\/,\/es\/es\/,\/ca\/fr\/,\/tr\/tr\/,\/th\/th\/,\/vn\/vi\/,\/id\/id\/,\/pl\/pl\/";
INTEL.I18n["support-switch.enableContactIntel"] = "Y";
INTEL.I18n["feedback.delayValue"] = "45";
INTEL.I18n["category_virtual_assistant.vaContextMessages.chattingwithliveagent"] = "Chatting with a live agent";
INTEL.I18n["category_virtual_assistant.vaContextMessages.endChat"] = "End Chat";
</script>

<script type="text/javascript">
    var chatContextObj = {};
    chatContextObj["locale"] = 'en-US';
    chatContextObj["app"] = 'Support';
    chatContextObj["supportProductMap"] = '{"level-1":{"description":"intel-fpgas","id":"98836"}}';
</script>
<script src="/etc.clientlibs/settings/wcm/designs/ver/230126/intel/clientlibs/virtual-assistant.min.js" defer></script>

<script type="text/javascript" src="/content/dam/www/global/wap/tms.sync.js" async></script>

<link rel="stylesheet" href="/etc.clientlibs/settings/wcm/designs/ver/230126/intel/clientlibs/pages/commons-page.min.css" type="text/css"><script src="/etc.clientlibs/settings/wcm/designs/ver/230126/intel/clientlibs/pages/commons-page.min.js" defer></script>

<script>!function(){var e=setInterval(function(){"undefined"!=typeof $CQ&&($CQ(function(){CQ_Analytics.SegmentMgr.loadSegments("/etc/segmentation"),CQ_Analytics.ClientContextUtils.init("/etc/clientcontext/intel",window.location.pathname.substr(0,window.location.pathname.indexOf(".")))}),clearInterval(e))},100)}();</script>

<link rel="preload" as="style" href="/etc.clientlibs/settings/wcm/designs/intel/us/en/css/resources/css/intel.rwd.override.css"/>
<link rel="stylesheet" type="text/css" href="/etc.clientlibs/settings/wcm/designs/intel/us/en/css/resources/css/intel.rwd.override.css"/>