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Intel Pentium 4 User Manual

Intel Pentium 4
371 pages
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Intel
®
Pentium
®
4 Processor in
the 478-pin Package /
Intel
®
850 Chipset Family
Platform
Design Guide
January 2003
Document Number: 249888-008
R

Table of Contents

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Intel Pentium 4 Specifications

General IconGeneral
Architecturex86
Core Count1
MicroarchitectureNetBurst
ManufacturerIntel
Core NamesWillamette, Northwood, Prescott, Cedar Mill
Virtualization TechnologyNo
Release DateNovember 20, 2000
Clock Speed1.3 GHz to 3.8 GHz
FSB Speed400 MHz to 1066 MHz
SocketSocket 423, Socket 478, LGA 775
Introduced2000
Product LinePentium
Front Side Bus400 MHz to 1066 MHz
Hyper-ThreadingYes (Prescott and later)
64-bit SupportYes (Prescott and later)
Instruction SetMMX, SSE, SSE2, SSE3
Discontinued2008
Process Technology180 nm, 130 nm, 90 nm, 65 nm
L2 Cache256 KB, 512 KB, 1 MB, 2 MB
Lithography180 nm, 130 nm, 90 nm, 65 nm
L1 Cache8 KB

Summary

Platform Clock Routing Guidelines

Routing Guidelines for System Bus Clocks

Guidelines for routing system bus clocks, including BCLK topology.

Trace Lengths

Defines critical RDRAM device clock routing lengths.

Rambus RDRAM* Device Clock Termination

Specifies termination requirements for RDRAM device clocks.

System Bus Routing

Topology and Routing

Details topology and routing recommendations for system bus signals.

Memory Interface Routing

Rambus Signaling Level (RSL) Signals

High-speed RSL signals transmit data between MCH and RDRAM.

Differential Clock Compensation

Calculations for clock trace length for microstrip and stripline routing.

RSL Signal Termination

Termination requirements for RSL signals to 1.8 V (Vterm).

AGP Interface Routing

AGP Routing Guidelines

Recommended routing guidelines for Intel 850 chipset AGP interface.

2X/4X Timing Domain Signal Routing Guidelines

Line length and mismatch requirements for 2X/4X AGP signals.

Trace Lengths Less Than 6 Inches

Routing guidelines for AGP interfaces less than 6 inches.

Trace Lengths Greater Than 6 Inches and Less Than 7.25 Inches

Routing guidelines for AGP interfaces over 6 inches.

Hub Interface Routing

I/O Controller Hub 2

Intel® Pentium® 4 Processor in the 478-Pin Package Processor Power Distribution Guidelines

Power Requirements

Recommendations for processor voltage regulator and decoupling capacitors.

FMB1 VR Component Placement

Example placement for FMB1 VR components.

FMB1 Decoupling Requirements

Decoupling requirements for FMB1 processor power delivery.

FMB1 Layout (6-Layer Board)

Illustrates power delivery shapes for FMB1 on a 6-layer board.

Power Distribution Guidelines

Debug Port Routing Guidelines

Debug Tools Specifications

Schematic Review Checklist

Processor Checklist (All Signals)

Checklist for all processor signals' recommendations and reasons.

Intel® 850 Chipset Checklist

Checklist for Intel 850 Chipset recommendations and their impact.

Intel® ICH2 Checklist

Checklist for Intel ICH2 interface recommendations.

Layout Review Checklist

Processor and System Bus

Layout considerations for processor and system bus signals.

AGTL+ Signals

Recommendations for AGTL+ signal layout and trace width.

Asynchronous GTL+ and Other Signals

Layout for asynchronous GTL+ and other signals.

Processor Decoupling

Placement guidelines for processor decoupling capacitors.

Intel® 82850 MCH Decoupling

Decoupling recommendations for the Intel 82850 MCH.

RSL Signals

Routing recommendations for Rambus Signaling Level (RSL) signals.

2X/4X Signals

Routing guidelines for 2X/4X AGP signals.

AGP Less Than 6 Inches

AGP routing trace length and spacing for interfaces < 6 inches.

AGP Interface Greater Than 6 Inches and Less Than 7.25 Inches

AGP routing trace length and spacing for interfaces > 6 inches.

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