Cisco Systems NPE-225, NPE-175 manual NPE-200

Chapter 1 NPE-100, NPE-150, and NPE-200 Overview

NPE-100, NPE-150, and NPE-200 Description and Overview

Figure 1-3 NPE-200

	7
	8
	9
1	10
	U52
	11
2	U42
	U25
3	12
	U11

NETWORK PROCESSING ENGINE-200

66420

4 5 6

1	System controller	7	Midplane connectors
2	R5000 microprocessor	8	Temperature sensor
3	4-MB SRAM (U6, U10, U13, U14, U28, U29,	9	Boot ROM U92
	U38, and U39)
4	Captive installation screw	10	DRAM SIMMs
5	Handle	11	Bank 1
6	Temperature sensor	12	Bank 0

The NPE-100, NPE-150, and NPE-200 consist of the following components:

•Reduced instruction set computing (RISC) microprocessor

–The NPE-100 and NPE-150 have an R4700 microprocessor that operates at an internal clock speed of 150 MHz.

–The NPE-200 has an R5000 microprocessor that operates at an internal clock speed of 200 MHz.

•System controller

The system controller provides hardware logic to interconnect the processor, DRAM, and the PCI-based system backplane bus. The NPE-150 and NPE-200 have a system controller that uses direct memory access (DMA) to transfer data between DRAM and packet SRAM on the network processing engine.

Network Processing Engine and Network Services Engine Installation and Configuration

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