NP3705 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – 2.5-Gbps Network Processor with Integrated Traffic Manager

Product Brief
nP3705
2.5-Gbps Network Processor with Integrated Traffic Manager
Benefits
• High integration for Signifi-
cant form factor, cost, and
power savings
• Hardware-based Traffic Man-
ager for guaranteed perfor-
mance
• Software compatibility with
previous generation nP
devices: nP37x0, nP34xx,
nP7250
• Simple programming model
for rapid development and
quick time-to-market
Overview
The nP3705 family of integrated network proces-
sors is a derivative of the nP3700 family that
expands AMCC’s nP^5TM technology to lower
speed, cost-sensitive access applications.
Developed over several generations of traffic man-
agement and network processor products, nP⁵
unites the flexibility of the industry’s highest per-
formance network processing nPcore with the
most widely deployed and mature traffic manage-
ment technology. This unique combination
enables developers to deliver extremely fine-
grained control of subscriber traffic, without
impacting the ability to perform complex protocol
inter-working at media speeds. The nP3705 family
is designed from the ground up to provide soft-
ware compatibility with the earlier generations of
AMCC Network Processors. The single-stage pro-
gramming model dramatically simplifies software
development and troubleshooting for quickest
time-to-market.
Industry Leading Integration and Performance
The nP3705 is a 2.5-Gbps network processing and
traffic management solution. In addition to high-
performance packet processing and fine-grained
traffic management, the nP3705 includes special-
ized coprocessors that perform classification, polic-
ing, and coherent database management for
unparalleled line-rate performance. The devices
are offered in different speed grades to provide a
range of performance and cost options tuned to
the application.
Rapid Application Development
AMCC's nPsoft^TM development environment
speeds the development, debugging, and delivery
of feature-rich, wire-speed, Layer 2-7 applications
by combining the simplified nPcoreTM program-
ming model of all AMCC NPUs with open, layered
nPsoft Services, advanced development tools, rich
reference application libraries, and both simulation
and real hardware-based development systems.
Because the nP3705 allows easy API access to on-
chip coprocessors for complex tasks, customer dif-
ferentiating features can be created faster and with
fewer lines of code.
Features
Supports 2.5-Gbps Traffic
• nP⁵ Technology
• Mix and match Gigabit Ethernet, POS, and ATM
traffic
• Standalone or as a line card in a larger system
Proven nPcore Architecture
• 1 nPcore at 700 MHz optimized for network pro-
cessing
• Single-stage single-image programming model
• High-speed RLDRAM-II or FCRAM-II memory
interface for payload and context storage
• Per-flow metering and statistics for millions of
flows
Integrated Traffic Manager
• Per-flow queuing and scheduling
• Sophisticated, fine-grained scheduling algo-
rithms
Standards-Compliant Interfaces
• 14 FE/2 GE with Integrated MAC
• OIF SPI-3, OIF SPI-4.2 (1/4 rate)
• ATM Forum Utopia 2 / PL-2
Channelized
2xOC-3 / STM-1,
6 xT3/E3
RL/FC-DRAMII
AMUR
SPI-3
QAB
Flexible Tributary
Interface
Circuit
Emulation
Services
SPI-3
GE
RL/FC-DRAMII
nP3705
SPI-3
SPI-4.2
QDR SRAM
CPU
Control Plane
Figure 1. Channelized 2xOC-3/STM-1 Multi-Service Line Card with CES
QDR SRAM
GE
RL/FC
DRAM
nP3705
GE
Utopia-2
DSL Modem Bank or
PON
Utopia-2
DSL Modem Bank or
PON
Figure 2. 2.5Gb/s Broadband Access Line Card