Data Interfaces - Matrox Meteor-II /1394 Installation And Hardware Reference

Data interfaces

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Data interfaces
Matrox Meteor-II has a 32-bit PCI bus interface, capable of a
peak transfer rate of 132 Mbytes/sec.
Although Matrox Meteor-II /1394 supports simultaneous input
from multiple cameras, there are issues with respect to both
the PCI bus and the IEEE 1394 bus that restricts the actual
number. With respect to the PCI bus, the available sustained
bandwidth is a factor, like other Matrox Meteor-II boards.
However, Matrox Meteor-II /1394 has a much smaller FIFO,
and is therefore more susceptible to long PCI bus latencies.
With respect to the IEEE 1394 bus, Matrox Meteor-II /1394
OHCI-Lynx PCI-to-1394 Host controller is compatible with
serial IEEE 1394 bus data rates of 100, 200, or 400 Mbits per
second, and these rates are shared across the three input ports.
Once a time slice is allocated, the device is guaranteed to have
that time slice, and therefore transfer data; however, the time
slices available will pose a limitation. In smaller systems, for
example with two or three cameras, there should be enough
time slices to handle the load.