《电子技术应用》
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面向汽车信息娱乐市场 飞思卡尔升级高品质的车用i.MX应用处理器

2008-12-17
作者：周 鑫
关键词： i.MX31 飞思卡尔 i.MX 汽车级 应用处理器

    今天的汽车正在从传统的代步工具，演进成为个人通信、多媒体和信息共享的新一代网络中心。随着对汽车信息、娱乐和安全系统性能要求的提升，飞思卡尔" title="飞思卡尔">飞思卡尔半导体宣布推出两种汽车级" title="汽车级">汽车级版本的i.MX" title="i.MX">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" 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title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31" title="i.MX31">i.MX31应用处理器" title="应用处理器">应用处理器。这两款处理器获得了汽车电子委员会(AEC)Q-100认证，为汽车原始设备制造商（OEM）提供一种强大的解决方案，以实现驾驶员所需的下列特性：免提电话操作、语音识别以及语音和媒体的高速数据传输、GPS 导航和AV娱乐等特性。这些处理器促进了消费电子器件，如手机、便携式媒体播放器与汽车环境的无缝连接。
    2007年早些时候，福特和微软宣布推出SYNC车载通信和娱乐系统，并应用于带有SYNC系统的福特2008款车内。这是首款基于i.MX31处理器的汽车应用。福特SYNC是基于微软汽车平台的一个完全集成的、可更新的与可定制的媒体系统。该系统允许汽车乘坐者操作支持蓝牙的移动电话和几乎所有的便携式媒体播放器，这些设备在方向盘上带有简单的语音命令或手动控制，SYNC可以让用户在车辆中控制并个性化他们的电子设备。飞思卡尔的i.MX31处理器是SYNC不可或缺的一部分，它运行微软操作系统和应用程序、处理免提操作的音频信号，并实现语音识别。此外，i.MX31芯片利用USB技术实现SYNC系统与手机或便携式媒体设备之间的高速数据传输。

杰出的i.MX31处理器

    i.MX31处理器基于ARM11TM平台，在运行高性能的车载通信和信息娱乐系统的同时，提供400MHz处理速度和高效的存储系统，如L-2高速缓存。由于符合AEC标准的严格规范，汽车级i.MX31处理器可以向飞思卡尔客户确保在苛求的汽车环境中提供统一标准和可靠性。
    i.MX31处理器配备专用的多媒体加速器，使ARM11内核的处理能力用于面向消费者的软件、导航和其他任务中。一个例子就是飞思卡尔专用的图像处理单元可执行后视镜与取景器任务，无需中央处理器干涉。i.MX31处理器以非常低的功率运行，最大程度地降低仪表板中的热量聚积。如图1所示。

 


    iSuppli汽车电子公司首席分析师Richard Robinson表示：“随着飞思卡尔汽车级i.MX31应用处理器的推出，它为当今汽车驾驶员带来了新水平的通信和娱乐功能。凭借其卓越的技术专业知识和创新，飞思卡尔半导体多年来一直是汽车行业的未来解决方案提供商。非常高兴看到汽车厂商在动态的汽车信息娱乐领域不断发展壮大。”
    飞思卡尔i.MX31应用处理器为客户利用不同的软件提供强大的中央处理单元(CPU)。由于其高效的存储架构和向量浮点单元，它还可提供卓越的语音识别性能。
    i.MX31汽车级处理器支持多个操作系统和应用框架，支持市场和汽车OEM的不同要求。支持的操作系统包括Microsoft? Auto、Linux? OS、QNX? Neutrino?以及其他领先的RTOS。
    QNX软件系统公司营销副总裁Dave Curley表示：“我们高度重视与飞思卡尔的关系，而且非常高兴能与他们一起来增强汽车市场的渗透。随着车载通信和娱乐系统的演进，飞思卡尔技术与QNX软件的整合能使消费者最大程度提高其多媒体设备的功能，实现高效、令人愉快的驾驶体验。”

针对汽车应用的i.MX31增强功能

    作为全球领先的半导体公司，飞思卡尔半导体不断推出i.MX系列应用处理器。基于ARM核心技术的i.MX系列产品，拥有超过10年的技术经验，并被广泛地应用于智能电话、无线PDA、移动娱乐和多种其他移动无线产品。其设计宗旨是实现低功耗、高性能，大幅度缩短设计时间。融合了先进的低功耗技术，并且针对汽车行业进行了增强的i.MX31处理器，能够符合汽车OEM的严格质量和可靠性标准。例如，汽车级i.MX31设备具有速度高达400 MHz的CPU，并且能够在-40°C～+85°C的温度范围中运行。处理器封装为473MAPBGA、0.8mm间距，符合RoHS标准。

关于i.MX系列和Smart SpeedTM技术

    飞思卡尔的i.MX系列应用处理器主要用于智能电话、便携式媒体播放器、便携式导航设备、视频监控、销售点终端系统、条形码扫描器及许多其他通用嵌入式应用。i.MX系列基于ARM? 核心技术，采用Smart Speed技术设计制造，以最低的功耗提供高功率性能。广泛的集成有助于大大减少设计时间。飞思卡尔为设计工程师提供各种i.MX处理器选择，如：面向价格敏感应用的i.MXS、面向中端设备的i.MXL和i.MX21S以及面向高性能场合的i.MX21、i.MX27 和i.MX31处理器。i.MX系列支持多种平台，包括基于Microsoft Windows、Linux操作系统以及大量领先的实时操作系统的平台。i.MX处理器封装符合RoHS标准。
    i.MX31处理器系列利用飞思卡尔的Smart Speed技术架构，使设计者可以在较少的eCPI（有效单位指令循环）及功耗下实现平行处理。它通过6×5 Smart Speed的交叉开关，实现系统并行处理，几乎消除了停滞状态，使处理器的性能与时钟速度高达3GHz的处理器相同，但又不会因高运行频率而导致高功耗。

供货信息

    i.MX31汽车级处理器目前可以批量销售，您可以通过经销商或者直接从飞思卡尔订购。支持的操作系统包括Microsoft? Windows? CE、Linux? OS、QNX? Neutrino? 以及其他著名的RTOS。i.MX31LC版本每万件的建议零售价为21.80美元，带有片上3D图形加速器的i.MX31C处理器版本每万件的建议零售价为24.86美元。如需了解飞思卡尔i.MX应用处理器系列的更多信息，请访问： www.freescale.com/imx.

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