PXI-8840 NI 采用2.6 GHz的四核处理器 是用于PXI框架的嵌入式控制器

这PXI-8840(零件号:785780-04,785780-01,785780-33,785543-01,784193-04,784193-33,和155186B-112L)采用2.6 GHz的四核处理器，是用于PXI框架的嵌入式控制器。它的最大控制器带宽为132 MB/s，片上L2缓存为3 MB。它可用于升级处理和数据采集的测量仪器的应用。这PXI 8840控制器集成了两个以太网端口(千兆位)10/100/1000BASE-TX、两个USB 3.0端口和四个USB 2.0端口，以及一个集成硬盘、1个RS-232串行端口、1个ExpressCard/34插槽和其他类型的外设I/O。上的SMB连接器倪8840四核前板可以关联或来自任何PXI背板触发线。触发器部分进程预计会阻止两个资源与类似的触发器行相关联，从而导致触发器被双重驱动并可能损坏硬件。四核处理器在一个物理封装中包含四个内核或计算引擎。为了扩展您可以处理的线程数量倪8840整合了英特尔超线程技术，该技术利用四个物理内核中的每一个，并将其分成两个虚拟内核，总共八个虚拟内核，这八个虚拟内核可以执行八项计算任务，这在Windows 7等多任务处理环境中非常有利。

这PXI 8840包括多线程框架开发环境，例如NI LabVIEW，它可以充分利用上的处理内核倪8840通过自然地将任务分离成独立的线程。

在这个模型中，应用程序必须通过实现进度策略来构建四个自主执行线程，包括:任务并行、数据并行和流水线。尽管如此，英特尔还是推出了睿频加速技术，为广泛的应用提供了执行优势，而无需针对多核处理器优化应用。

四宽3U PXI模块重2.77磅。它的推荐工作温度范围为5°C至50°C，扩展温度选项为0°C至55°C，存储温度范围为-40°C至65°C，扩展温度选项为-40°C至71°C。

PXI-8840

The PXI-8840 (Part Numbers: 785780-04, 785780-01, 785780-33, 785543-01, 784193-04, 784193-33, and 155186B-112L) with a Quad-Core Processor 2.6 GHz is an inserted controller for PXI frameworks. It has a maximum controller bandwidth of 132 MB/s, and an on-die L2 cache of 3 MB. It can be utilized for applications for measured instrumentation with escalated handling and data acquisition. The PXI 8840 Controller incorporates two Ethernet ports (Gigabit) 10/100/1000BASE-TX, two USB 3.0 ports, and four USB 2.0 ports, as well as an integrated hard disk, 1 RS-232 serial port, 1 ExpressCard/34 slot, and other types of peripheral I/O. The SMB connector on the NI PXI 8840 quad-core front board can associate with or from any PXI backplane trigger line. A trigger portion process is expected to keep two resources from associating with a similar trigger line, resulting in the trigger being double-driven and possibly damaging the hardware. Quad-core processors contain four cores, or computing engines, in one physical package. To expand the quantity of threads that you can process, the NI PXI 8840 consolidates Intel Hyper-Threading technology that takes every one of the four physical cores and splits the into two virtual cores, for a sum of eight virtual cores These eight virtual cores can execute eight computing tasks, which is advantageous in multitasking conditions like Windows 7.

The PXI 8840 includes multithreaded framework development environments, such as NI LabVIEW that can take full advantage of the processing cores on the NI PXI 8840 via naturally separating their tasks independent threads.

In this model, applications must be architected to make four autonomous execution threads by implementing progress strategies, including: task parallelism, data parallelism, and pipelining. Notwithstanding, Intel introduced Turbo Boost technology to provide execution benefits to a wide range of uses without requiring the application to be optimized for multicore processors.

The four-wide 3U PXI module weighs 2.77 lb. It has a recommended operating temperature range of 5 °C to 50 °C with an extended temperature option of 0 °C to 55 °C, storage temperature range of -40 °C to 65 °C also with an extended temperature option of -40 to 71 °C.