Cisco Systems NPE-175, NPE-225 manual Sodimm J1

Chapter 3 NPE-300 and NPE-400 Overview

NPE-300 and NPE-400 Description and Overview

Figure 3-2		NPE-400
		1
2				7
3				8
4
				9
				10
				11
				NETWORK PROCESSING ENGINE-400	66411
	5		6
1	Temperature sensor (U31)		7	Midplane connectors
2	Keying post		8	Boot ROM (U7)
3	RM7000 microprocessor		9	Temperature sensor (U6)
4	System controller		10	SODIMM (J1)
5	Captive installation screw		11	Standoff and screw
6	Handle

The network processing engines consist of the following components:

•Reduced instruction set computing (RISC) microprocessor

–The NPE-300 uses an RM7000 microprocessor that operates at an internal clock speed of 262 MHz.

–The NPE-400 uses an RM7000 microprocessor that operates at an internal clock speed of 350 MHz.

•System controller

The system controller provides hardware logic to interconnect the processor, DRAM, and the PCI-based system backplane bus.

–The NPE-300 has two system controllers that provide processor access to the midplane and single I/O controller PCI buses. The system controllers also allow port adapters access to SDRAM using any of the three PCI buses.

–The NPE-400 has a single system controller that provides system access.

Network Processing Engine and Network Services Engine Installation and Configuration

OL-4448-12 3-3