Glossary
MXI-Express Gen II x8 Series User Manual
G-6
ni.com
P
PCI
Peripheral Component Interconnect—A high-performance expansion bus
architecture originally developed by Intel to replace ISA and EISA. It
achieved widespread acceptance as a standard for PCs and workstations; it
offers a theoretical maximum transfer rate of 132 Mbytes/s.
PCI card edge connector
The PCI card edge connector is the row of metal contacts along the bottom
edge of a PCI plug-in card. The details for this connector are defined by the
PCI Specification
.
PCI Express
A scalable full-simplex serial bus standard that operates at 2.5 Gbps, or
higher, and offers both asynchronous and isochronous data transfers. Also
known as PCIe.
PCI Express switch
The PCI Express Base Specification defines a PCI Express switch as a
logical collection of PCI Express-to-PCI Express bridge devices. On the
NI PCIe-8381, the upstream port of the switch is connected to the
PCI Express x8 card edge connector, and the downstream port is connected
to a cabled MXI-Express Gen II x8 connector.
On the NI PXIe-8381, the upstream part of the switch is connected to the
cable. One downstream port is connected to the SMBus Master, and either
four x4 ports or two x8 ports are connected to the backplane, depending on
the chassis backplane configuration.
PCI Express x8 card edge
connector
The card edge connector allows you to use the NI PCIe-8381 in a x8 or
wider PCI Express slot in a PC. The PCI Express Card Electromechanical
Specification defines this connector.
PCI Express-to-PCI
Bridge
The PCI Express Base Specification defines a PCI Express-to-PCI bridge
as a device that connects a PCI Express fabric and a PCI hierarchy. On the
NI PXIe-8381, the PCI Express-to-PCI bridge connects an SMBus Master
on the card via a Gen 1 x1 PCI Express link.
PCI-PCI bridge
A device that transparently expands the PCI bus on a computer
motherboard to another bus segment in the same machine. The bridge
expands the number of PCI expansion slots, but remains transparent to the
end user.
PCI Express-to-PCI
bridge
The
PCI Express Base Specification
defines a PCI Express-to-PCI bridge
as a device that connects a PCI Express fabric and a PCI hierarchy.
A PCI Express-to-PCI bridge enables certain MXI-Express Gen II x8
products to interface with PCI or PXI slots.