IXP2400 Intel, IXP2400 Datasheet - Page 10

• Manufacturer Part Number: IXP2400
• Manufacturer: Intel

Specifications of IXP2400

• Operating Supply Voltage (typ): 1.3/1.5/2.5/3.3V
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

Intel
2.0
2.1
10
Figure 4. IXP2400 Network Processor Chassis Concept Block Diagram
®
IXP2400 Network Processor
Hash
Unit
Functional Units
Functional Overview
This section provides a brief overview of the IXP2400 Network Processor internal hardware.
Figure 4
The major blocks are:
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•
•
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•
•
•
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Intel XScale core — General-purpose 32-bit RISC processor compatible to ARM Version 5
Architecture. The Intel XScale core is used to initialize and manage the chip, and can be used
for higher layer network processing tasks.
Microengines (MEs) — 8 32-bit programmable engines specialized for network processing.
Microengines do the main data plane processing per packet.
DRAM Controller — 1 DDR SDRAM controller. Typically DRAM is used for data buffer
storage.
SRAM Controller — 2 independent controllers for QDR SRAM. Typically SRAM is used for
control information storage.
Scratchpad Memory — 16 Kbytes of storage for general-purpose use.
Media and Switch Fabric Interface (MSF) — Interface for network framers and/or Switch
Fabric. Contains receive and transmit buffers.
Hash Unit — Polynomial hash accelerator. The Intel XScale core and Microengines can use it
to offload hash calculations.
PCI Controller — 64-bit PCI Rev 2.2 compliant IO bus. PCI can be used to either connect to a
Host processor, or to attach PCI-compliant peripheral devices.
Controller
Media Switch
Fabric (MSF)
PCI
is a simple block diagram that shows the device’s major internal blocks.
CAP
Scratchpad
Memory
ME
0x1
ME
0x2
ME Cluster 0
Controller
ME
0x0
ME
0x3
SRAM
0
0x10
0x13
Controller
ME
ME
ME Cluster 1
SRAM
1
0x11
0x12
ME
ME
Controller
DRAM
Peripherals
XScale®
Core
(XPI)
Intel
Performance
Monitor
XScale®
Core
Intel
A9811-01
Datasheet