PXIe-6341
将PXI兼容产品与标准CompactPCI产品配合使用是PXI规范1.0版提供的一项重要功能。如果在标准CompactPCI机箱中使用与PXI兼容的插件设备，则无法使用PXI特定功能，但仍可以使用基本插件设备功能。例如，6711/6713设备上的PXI触发总线在PXI机箱中可用，但在CompactPCI机箱中不可用。CompactPCI规范允许供应商开发与CompactPCI总线上的基本PCI接口共存的子总线。不保证具有不同子总线的CompactPCI设备之间的兼容操作，也不保证具有子总线的CompactPCI设备与PXI之间的兼容操作。CompactPCI的标准实现不包括这些子总线。您的6711/6713设备将在任何符合PICMG CompactPCI 2.0 R2.1文档的标准CompactPCI机箱中工作。PXI特定功能、RTSI总线触发器、RTSI时钟和串行通信在CompactPCI总线的J2连接器上实现。表1-1列出了PXI-6711/6713使用的J2引脚，该引脚与任何具有不驱动这些线路的子总线的CompactPCI机箱兼容。即使子总线能够驱动这些线路，只要子总线上的这些引脚在默认情况下处于禁用状态且从未启用，6711/6713仍然兼容。如果这些线路由子总线驱动，可能会导致损坏。

Using PXI-compatible products with standard CompactPCI products is an important feature provided by the PXI Specification, revision 1.0. If you use a PXI-compatible plug-in device in a standard CompactPCI chassis, you will be unable to use PXI-specific functions, but you can still use the basic plug-in device functions. For example, the PXI trigger bus on your 6711/6713 device is available in a PXI chassis but not in a CompactPCI chassis. The CompactPCI specification permits vendors to develop sub-buses that coexist with the basic PCI interface on the CompactPCI bus. Compatible operation is not guaranteed between CompactPCI devices with different sub-buses nor between CompactPCI devices with sub-buses and PXI. The standard implementation for CompactPCI does not include these sub-buses. Your 6711/6713 device will work in any standard CompactPCI chassis adhering to the PICMG CompactPCI 2.0 R2.1 document. PXI-specific features, RTSI bus trigger, RTSI Clock, and Serial Communication, are implemented on the J2 connector of the CompactPCI bus. Table 1-1 lists the J2 pins used by your PXI-6711/6713, which is compatible with any CompactPCI chassis with a sub-bus that does not drive these lines. Even if the sub-bus is capable of driving these lines, the 6711/6713 is still compatible as long as those pins on the sub-bus are disabled by default and are never enabled. Damage can result if these lines are driven by the sub-bus.