National Instruments NI PXI-8360 用户手册

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© National Instruments Corporation
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Hardware Overview
This chapter presents an overview of NI ExpressCard MXI hardware 
functionality and explains the operation of each functional unit.
Functional Overview
NI ExpressCard MXI is based on PCI Express technology. An 
NI ExpressCard MXI kit uses standard PCI Express bridges or switches. 
The architecture is transparent to device drivers, so no additional software 
is needed to support NI ExpressCard MXI.
No software is required for basic functionality. SMBus and ID device both 
require drivers.
Note
The PXI Platform Services software on the PXI Platform Services CD or driver CD 
included with your PXI Express MXI-Express hardware is required to provide chassis and 
controller identification for PXI features such as trigger routing and slot detection. The PXI 
Platform Services software is also included with the NI-DAQmx and NI-VISA drivers. For 
more information, refer to KnowledgeBase 3TJDONDS at 
ni.com
.
The link between the PC and the chassis is a x1 PCI Express link. This link 
is a dual-simplex communication channel comprised of a low-voltage, 
differentially driven signal pair. The link can transmit at a rate of 2.5 Gbps 
in each direction simultaneously. This connector is not compatible with the 
cabled PCI Express specification to be released by the PCI-SIG in the next 
few months.
Figure 3-1 shows the basic architecture of NI ExpressCard MXI with an 
NI PXI-8360. Figure 3-2 shows the basic architecture of NI ExpressCard 
MXI with an NI PXIe-8360. The NI ExpressCard-8360 consists of an 
ExpressCard module connector, a PCI Express cable driver, and 
one high-speed cable connector. The NI PXI-8360 consists of 
one high-speed cable connector, a PCI Express-to-PCI bridge, and a PXI 
connector. The NI PXIe-8360 consists of one high-speed cable connector, 
a PCI Express-to-PCI Express switch, and a PXIe connector.