NP3740 Applied Micro Circuits Corporation (AMCC), NP3740 Datasheet - Page 2

• Manufacturer Part Number: NP3740
• Description: 5-gbps Network Processor With Integrated Traffic Manager
• Manufacturer: Applied Micro Circuits Corporation (AMCC)

nP3740
nP3740 Highlights
Interfaces
• Line Interfaces – cell and packet
• Fabric Interface: OIF SPI-4 Phase 2
• External Memory Interfaces:
(Line/CPU)
(Line/CPU)
nP3740
– 800 MHz
RLDRAM II memory controllers
– Payload Memory:
SPI3/UT3
GE
SPI3/UT3
Two banks of 36-bit RLDRAM II
operating at up to 250 MHz (32 Gbps
with ECC)
SPI-3/UT-3
2
NPF(QDR)
NPF(QDR)
Interfaces
Interfaces
18
18
GE
16-bit
Engine
Engine
1
Policy
Policy
(CSM)
(CSM)
FE/GE
FE/GE
M ACs
M ACs
Line
Line
HOST CPU
SPI-4.2
HOST CPU
1
36
36
3 nPcores @ 700 MHz
QDR
QDR
Statistics
Statistics
SPU
SPU
nPcore @ 700 MHz
nPcore @ 700 MHz
Engine
Engine
• CPU Interfaces: PowerPC and Gigabit
• External Search Interface
• Debug port
• JTAG port
36
36
– Context Memory:
– Channel Service Memory:
– Flow Database Memory:
Ethernet
– Compliant with NPF
– Backward compatibility mode with
Packet Transform
Packet Transform
Two banks of 36-bit RLDRAM II
operating at up to 250 MHz (32 Gbps
with ECC)
One bank of 36-bit QDR-II SRAM
operating at up to 250 MHz
Two banks of 18-bit QDR-II SRAM
operating at up to 250 MHz
existing TCAMs
nP3740 Block Diagram
72 Tasks
24 Tasks
24 Tasks
M em ory Access Unit
M em ory Access Unit
Engine
Engine
Cache
DRAM/SRAM
(PTE)
(PTE)
DEBUG
XSC
XM I
DEBUG
36
36
RLDRAM
36
36
Engine
Engine
Hash
Hash
FCN
36
36
High Performance nPcore
• Three nPcores at up to 700 MHz
Integrated Coprocessors
• Policy Engine for efficient packet
• Special Purpose Unit (SPU) for per-flow
• Hashing Unit
• On-Chip Debugger (OCD)
Integrated Traffic Manager
• Hierarchical Traffic Manager with
• Leverages field-proven nPX5710 and
Soft TM
Soft TM
classification
policing
fine-grained flow-based traffic
management
nPX5720 technology
Manager
Manager
DRAM
RLDRAM
Scheduling
Scheduling
Traffic
Traffic
Queuing
Queuing
36
36
JTAG
JTAG
Scratch
Scratch
Pad
Pad
SPI4.2
SPI4.2