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IDT77950 Datasheet, PDF (1/3 Pages) List of Unclassifed Manufacturers – SwitchStarTM Reference Design Using the IDT77V400 Switching Memory and IDT77V500 Switch Controller
SwitchStarTM Reference Design Using the
IDT77V400 Switching Memory and
IDT77V500 Switch Controller
IDT77950
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x Complete ATM switch with up to eight ports at 155Mbps
each (1.24Gbps non-blocking aggregate bandwidth)
x Intended for Engineering/Lab use to evaluate and perform
design/software development for the IDT77V400 and
IDT77V500
x Call setup function and signaling performed by external PC
connected to port 7.
x Software (http://www.idt.com/products/pages/ATM-77950.html)
– IDT SwitchBIOS to configure and initialize switch
– SARWIN II
x Basic configuration includes three IDT77955 line cards to
equip two transmit/receive ports plus the control/signalling
port
x Supports features of the IDT77V400 and IDT77V500
SwitchStarTM products
x IDT77955 Line Cards available for additional switch ports
x Can be used with ATM traffic generators or individual
transmit/receive PCs
x Utilizes IDT77V550 Switch Manager, IDT77010 DPI-to-
UTOPIA Translation Device, and IDT77155 PHY
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The IDT77950 is an ATM Reference Design based on IDT's innova-
tive SwitchStar products, the IDT77V400 Switching Memory and the
IDT77V500 Switch Controller. The Switch is made up of two separate
board components: the 7M950 motherboard, which contains the
Switching Fabric function based on IDT's Switching Memory and Switch
Controller, and an individual IDT77955 OC-3 line card for each individual
transmit receive port.
The 1.2 Gbps ATM switch has eight receive and eight transmit ports.
The Switching Fabric, made up of the IDT77V400 and IDT77V500
SwitchStar products, resides on the motherboard. Each individual port
resides on a line card which is interfaced to the motherboard via a Line
Card PCI connector. Up to eight line cards can be connected to the
motherboard, with each line card running at 155 Mbps.
One of the line cards (Port 7) is used for communicating with a
remote PC to configure, read status and perform Signalling, PNNI and
OAM cell handling for the switch. All the necessary software functions
are performed by the remote PC.
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Motherboard Functionality
The motherboard consists primarily of three devices: the IDT77V400
Switching Memory, the IDT77V500 Switch Controller, and the
,'7 %RDUG /D\RXW
6
7
Signalling/Command
Port
(To PC)
IDT77955 OC-3 Line Card
0
ATM Line Card
1
ATM Line Card
ATM Line Card
ATM Line Card
DPI
ATM Line Card
IDT77V400
ATM Line Card
ATM Line Card
ATM Line Card
DPI
IDT77950
ATM Switch Card
IDT77V500
IDT77155 IDT77010
8 inch
155 Mbps
Transceiver
IDT77V550
SwitchStar and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
 2001 Integrated Device Technology, Inc.
8 inch
1 of 3
4309 drw 01
April 3, 2001
DSC 6004