CompactPCI Express (EXP 0) – Bringing PCI Express to the cPCI Form Factor
CompactPCI Express supports the next generation
Intel function card
architecture in the familiar 6U x 160mm Eurocard form factor.
connects cards via a serial point to point bus with a read-only
up to 16x 2.5 Gigabits/second or 8x 2.5 Gigabits/second full
CompactPCI Express provides support for several different
card for factors
with connectivity in 1x, 2x 4x, and 8x increments. Each link
full duplex 2.5 Gigabit/second interconnect path. The support
of legacy 32
or 64 bit CompactPCI boards is accomplished by a PCIe to PCI-X
CompactPCI boards of 33MHz, 66MHz, or 133MHz are possible.
Because the CompactPCI Express architecture continues to
support the P3, P4
and P5 in all 6U slot types, CompactPCI Express can continue
to support for
all existing CompactPCI secondary architectures such as PICMG
2.16, 2.17 and 2.18, either as functions on native CompactPCI
or as legacy cards in the original CompactPCI form.
The high performance capability of the new CompactPCI architecture
possible performance levels that will support such features
as a new
generation of video graphic capability. The backward compatibility
CompactPCI and the wealth of user available backplane IO of
the P3, P4 and
P5 connectors will allow many new specialized applications
to be supported
while continuing to support all existing card designs.