PRS64GU Datasheet, PDF (2/2 Pages) Applied Micro Circuits Corporation – Packet Routing Switch

Product Brief
PB PRS 64Gu / v0.5 / 12-19-2003
PRS 64Gu
Packet Routing Switch
PRS C48 and PRS C192 Common
Switch Interface
To expedite the design of
chassis-based systems requiring a
high-speed interconnect across a
backplane or short cable distances,
AMCC offers the new PRS C48
Common Switch Interface.
The PRS 64Gu, like the
PRS Q-64G, uses 2.5-Gbps
high-speed serial links for
communication with line adapters
equipped with the PRS C48
(connected to a 4G/OC-48c NPU or
TM) or current PRS C192 Common
Switch Interface chip (connected to
a 10G/OC-192c NPU or TM).
High-speed serial (HSS) links
simplify the wiring and enable
highly compact 64/128-Gbps switch
board designs, which can result in
significant cost reductions
(backplane and line adapters). The
new PRS C48 provides a 32-bit
wide CSIX-L1 compliant interface to
a Network Processor or Traffic
Manager and, like the PRS C192,
enables a duplicated path with
redundant PRS 64Gu-based switch
planes.
Specifications
Redundancy Support for High
Availability
To increase availability and meet
Service Providers and new high
demanding applications (24x7),
switch fabrics are often designed
with two redundant planes. If an
element in one plane fails, the other
plane can take over; the PRS 64Gu
supports this crucial capability.
Each switch element has a built-in
filtering mechanism for redundancy
control.
On the line adapter, the PRS C48 or
PRS C192 Common Switch
Interface chip provides a redundant
path with the switch planes,
enabling traffic load sharing and
switchover between the two switch
planes, including maintenance
switchover without packet loss.
Highly Efficient Multicast
Multicast with QoS is an
increasingly valued capability in
Internet applications. The
PRS 64Gu, like the other members
of the PRS family, provides a
built-in efficient multicast function,
easing the design of edge routers
and other devices that provide
these complex services. To enable
multicasting and maximize product
resources utilization, the switch
executes a scheme of store once
and transmit multiple times
(replication at sending). The
multicast packet is placed in shared
memory and the memory-location
index is stored in the output queues
corresponding to the target output
ports and associated priorities.
Enablement Tools for an
Expedited Time to Market
To help reduce development time
and cost, AMCC offers a reference
switch core design and software to
operate the switch subsystem
control layer. The reference design,
a 128-Gbps, 16-layer, 286mm x
151mm compact switch board
allowing six PCBs out of a standard
18"x 24" PCB panel, is well-suited
for a redundant 32-port OC-48c
multiservice switch or a layer-2 and
above design that supports up to
128 Gigabit Ethernet ports.
Reference platforms allowing
evaluation of PRS switch fabric plus
network processor solutions, board
design services, and board
manufacturing capabilities
complement the AMCC PRS
offering.
Supply voltage
Power
Maximum Junction Temperature
Package Size
PRS 64Gu
1.8 V, 2.5 V
13W to 19W @ 100% traffic
125°C
32.5mm x 32.5mm
624-ball CBGA (1.27 mm balls pitch)
AMCC reserves the right to make changes to its products, or to discontinue any product or service without notice, and advises its customers to obtain the latest
version of relevant information to verify, before placing orders, that the information being relied upon is current.
AMCC is a registered trademark of Applied Micro Circuits Corporation. Copyright © 2003 Applied Micro Circuits Corporation. All Rights Reserved.
Other company, product, and service names may be trademarks or service marks of others.
6290 Sequence Drive • San Diego, CA 92121 • Tel: [phone] • Fax: [phone] • http://www.amcc.com
For technical support, please call 800 840-6055 or email [e-mail]
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