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Basics FireWire Technology - 41
FireWire technology speeds up the movement of multimedia
data and large files and enables the connection of digital
consumer products -- including digital camcorders, digital
video tapes, digital video disks, set-top boxes, and music
systems -- directly to a personal computer.
Devices can be connected in any combination of branching
and chaining, as long as no loops are formed. A FireWire bus
can support up to 16 consecutive cable hops of 4.5 meters
each. There are no SCSI-style ID numbers to set and no
termination requirements.
FireWire supports two types of data transfer: asynchronous
and isochronous. For traditional computer memory-mapped,
load and store applications, asynchronous transfer is
appropriate and adequate; but, one of FireWire's key
features is its support of isochronous data channels.