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Datasheet: VIAFIRE (VIA Tech.)

Ieee 1394 Link-layer /phy Chipset Solution


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VIA Fire
V I A I E E E 1 3 9 4 C H I P
The VIA Fire is a complete IEEE1394 chipset solution providing
a high-speed seamless plug-and-play connection to the latest
IEEE 1394 enabled PC peripherals and consumer devices.
The VIA Fire is a two chip IEEE1394 solution consisting of the VT6305 Link Layer
Controller and VT6304 PHY. Implemented onto a PCI adapter card or mounted
directly onto a motherboard the VIA Fire is the perfect solution for OEMs
and motherboard manufacturers looking to add IEEE 1394 capabilities to
their product lineup. A VIA Fire enabled PC enables a seamless high-
speed plug-and-play connection to the latest IEEE 1394 enables PC
peripherals and consumer devices such as HDDs, printers, stereos
and video cameras.
VT6305 Link Layer Controller
The VT6305 is a high performance IEEE 1394A Link Layer Controller
providing direct connectivity between the PCI bus and 1394 serial bus. The
VT6305's 2/4/8 bit physical layer interface supports data rates of 100 Mbps, 200 Mbps
and 400 Mbps operating at speeds up to 50MHz. Full software driver support has
been built into Windows 98 SE and Windows 2000.
VT6304 Physical Layer (PHY)
The VT6304 is a four port fully IEEE 1394-1995 and 1394A compliant Physical Layer
(PHY) chip designed to provide scalability and manageability in your IEEE 1394
network solutions. Each individual port detects connected device type and automati-
cally configures data speeds to either 100, 200 or 400 Mbps. A programmable power
management mode shuts down power to unconnected ports while the sleep
function maximizes power efficiency of connected ports. The VT6304's feature set
also makes it ideal for implementation into IEEE 1394 repeater hubs.
IEEE 1394 Link-layer / PHY chipset solution
V I A I E E E 1 3 9 4 C H I P
VT6305 Link Layer Controller
Fully 1394-1394A compatible
OHCI compatible programming
Descriptor based isochronous
and asynchronous DMA
channels for receive and
transmit packets
2/4/8 bit data interface to
external discrete PHY
100/200/400 Mbps data
transfer rates
PCI 2.1 interface
3.3V power supply with
5V tolerant inputs
128-pin PQFP package
w w w . v i a t e c h . c o m
VIA Technologies,Inc.
1045 Mission Ct.,
Fremont, CA 94539
tel: (510)683-3300
fax: (510)683-3301
Taiwan, ROC
8F, #533, Chung-cheng Rd.,
Hsin Tien, Taipei,
Taiwan, ROC
tel: (886-2)2218-5452
fax: (886-2)2218-5453
VT6304 Physical Layer (PHY)
Four cable ports
Automatic configuration to
single-port, two-port, three-
port and four port applications
Fully IEEE 1394-1995 and 1394A
100/200/400 Mbps data transfer
Programmable power save
mode on unconnected ports
Sleep mode maximizes
connected components power
Easily configured as a repeater
Integrated loop filter
Single 3.3V power supply
100-pin PQFP package and
80-pin LQFP package available
Provides a simple low cost intercon-
nect system for multimedia applica-
tions such as video cameras, VCRs,
stereos and PC peripherals.
High bandwidth capability allows
devices of varying speeds to operate
on the same network.
Universal plug-and-play capability
allows devices to be attached or
removed from the system, even with
the power on. No device driver
installation necessary as full software
driver support is included in Win-
98 SE and Windows
1394 does not utilize precious host
processor bandwidth as peripherals
communicate directly with each
other without burdening the host
VIA Fire
Windows 98
IEEE 1394A
IEEE 1394A
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