1
JANUARY 2003
DSC-6070/00
2002 Integrated Device Technology, Inc.
All rights reserved. Product specifications subject to change without notice.
ZBT and ZeroBus Turnaround are trademarks of Integrated Device Technology, Inc. and the architecture is supported by Micron Technology and Motorola Inc.
QDRTM - Quad Data Rate (Trademark of Cypress, IDT, Micron, NEC and Samsung.) All brands or products are the trademarks or registered trademarks of their
respective owners.
Product
Brief
IDT75K52134
IDT75K62134
4.5M and 9M Network
Search Engine (NSE)
with QDR
TM
Interface
Introduction
Evolving network speeds require critical functions such as forwarding
and classification to migrate towards dedicated hardware devices. The
Network Search Engine (NSE) based on IDT's CAM (Content Addres-
sable Memory) technology accelerates search functions required for
applications such as Access Control Lists (ACL), Flow Caching and
Forwarding.
NSE Features
x
x
x
x
x
128K x 72 (9M) or 64K x 72 (4.5M) Data and Mask cells
x
x
x
x
x
Full Ternary Content Addressable Memory
x
x
x
x
x
Advanced Database Management
-
Selectable Databases
-
Programmable Width per Database
-
Lookup widths from 32 to 576 bits
-
Only the selected Database is powered
x
x
x
x
x
Lookup Instructions
-
Standard Lookup
-
Multi-Hit Lookup
-
Multi-Database Lookup
-
Re-Issue Multi-Database Lookup
x
x
x
x
x
Maintenance Features
-
Aging
-
Multi Hit Invalidate
-
Learn per Database
x
x
x
x
x
Multi-Context support
x
x
x
x
x
Pool of (72-bit) Global Mask Registers (shared across contexts)
x
x
x
x
x
In-Band Control and Management
x
x
x
x
x
Assoicated Data SRAM is supported through a glue-less ZBT
interface
x
x
x
x
x
Lowest Power per Application
x
x
x
x
x
Synchronous Pipeline Operation
x
x
x
x
x
Boundary Scan JTAG Interface
x
x
x
x
x
1.2V Core Supply
x
x
x
x
x
1.5V HSTL I/O Supply
x
x
x
x
x
2.5V I/O Supply for ZBT
Associated Data SRAM
x
x
x
x
x
35mm x 35mm BGA Package
Device Description
The NSE with a single QDR
TM
(Quad Data Rate) interface is intended
to work with any NPU having a QDRTM look aside interface. Multiple
devices including the QDRTM NSE can be connected to the same QDRTM
interface. Each QDRTM NSE device may be point-to-point expanded up
to eight NSE devices.
External Interfaces
The following external interfaces are supported by the QDRTM NSE device
x
x
x
x
x
Single QDRTM NPU interface
-
QDRTM Clock Frequency up to 250 MHz
-
Supports QDRTM burst of 2
-
Echo clocks supported (CQ,
CQ)
x
x
x
x
x
Point-to-Point Cascading Interface
-
Up to eight NSEs can be cascaded using this scheme
x
x
x
x
x
Associated Data SRAM with standard ZBT
Interface
x
x
x
x
x
Boundary Scan JTAG Interface (IEEE 1149.1)
Figure 1.0 QDRTM NSE External Interfaces
6070 drw04aa
QDR
Read
Control
Logic
QDR
Write
Control
Logic
ZBT
Interface
Cascade
Interface
JTAG Interface
256K x 36 Full
Ternary Content
Addressable Memory
To request the full datasheet, please contact your local
IDT Sales Representative or call 1-831-754-4555
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