Intel IXP43X manual Intel IXP435 Network Processor Block Diagram

Page 13

Hardware Design Guidelines—Intel®IXP43X Product Line of Network Processors

Figure 1. Intel® IXP435 Network Processor Block Diagram

 

 

HSS

 

 

 

 

 

 

 

 

 

 

UTOPIA 2/ MII

 

 

NPE A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MII

 

NPE C

 

North AHB133. 32

MHz x32bits

 

 

 

ts

AES/ 3DES/

 

North AHB

 

 

 

 

 

 

 

DES/

us B us

 

 

 

 

 

x 32 bi

 

 

 

 

 

 

 

SHA/ MD-5

Arbiter

 

 

 

 

SSP

 

 

 

 

 

 

 

 

 

High Speed

66. 66MHz

 

 

 

Queue Stat

 

 

 

 

 

 

UART

 

 

 

 

 

 

 

 

 

921 Kbaud

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16 GPIO

GPIO

APB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16/ 32 BITS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AHB

 

 

 

 

 

 

 

+ ECC

 

Interrupt

 

 

 

 

 

 

 

DDRII/ I MEMORY

DDR 266 /

 

 

Slave /

 

 

 

 

 

 

 

Controller

 

APB

 

 

QUEUE

AHB/ AHB

 

CONTROLLER

DDRII 400

 

 

 

Master

 

 

MANAGER

BRIDGE

 

UNIT

 

 

IBPMU

 

BRIDGE

 

 

 

 

 

 

266/ 400

 

 

 

 

 

 

 

 

 

 

M PI 13 3 . 3 2MHz /200 MH z x 6 4 bit s

 

 

 

 

 

 

South AHB133. 32

MHz x32 bits

 

 

 

Timers

 

 

 

 

 

South AHB

 

 

 

 

 

 

 

 

Arbiter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB Port

 

USB Port

EXPANSION

PCI

 

 

 

 

 

 

HOST

 

HOST

 

 

 

 

 

 

CONTROLLER

CONTROLLER

BUS Controller

CONTROLLER

XScale Processor

 

 

 

 

VERSION2 .0

 

VERSION 2.0

8/16 bit 80MHz

32 bit 33 MHz

 

 

 

 

 

 

 

 

UTMI

 

 

 

 

32 KB I - CACHE

 

 

 

 

UTMI

 

 

 

 

 

32 KB D - CACHE

 

 

 

 

2.0 PHY

 

2.0 PHY

 

 

 

 

2KB MINI D- CACHE

 

 

 

 

 

 

 

 

 

266/400/533/667 MHz

 

 

 

 

Master on South AHB

 

Bus Arbiters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Master on North AHB

 

Slave Only

 

 

 

 

 

 

 

 

 

 

 

AHB Slave/APB Master

 

Note: Figure 1 shows the Intel® IXP435 Network Processor. For details on feature and SKU support listed by processor, see the Intel® IXP43X Product Line of Network Processors Datasheet.

 

Intel® IXP43X Product Line of Network Processors

April 2007

HDG

Document Number: 316844; Revision: 001US

13

Image 13
Contents Hardware Design Guidelines Intel IXP43X Product Line of Network ProcessorsHDG Intel IXP43X Product Line of Network ProcessorsApril Contents Figures Tables Document Number 316844 Revision 001US Date Revision Description § §001 Initial release HDG Chapter Name Description Content OverviewAcronyms Related DocumentationList of Acronyms and Abbreviations Sheet 1 Term ExplanationList of Acronyms and Abbreviations Sheet 2 OverviewHDG Intel IXP435 Network Processor Block Diagram Typical Applications System Memory Map System Architecture DescriptionIntel IXP43X Product Signal Type Definitions Soft Fusible FeaturesSoft Fusible Features Sheet 1 Symbol DescriptionUSB Host Each USB can be Enable separately Soft Fusible Features Sheet 2DDRII/I Sdram Interface EthernetDDRII/I Sdram Interface Pin Description Sheet 1 Signal InterfaceType Name Device-Pin Connection Terminatio Description FieldDDRII/I Sdram Interface Pin Description Sheet 2 DDRII/I Sdram InitializationExpansion Bus Expansion Bus Signal Recommendations Sheet 1Type Pull Name Recommendations Field Down Expansion Bus Signal Recommendations Sheet 2 Reset Configuration StrapsBoot/Reset Strapping Configuration Sheet 1 Name Type Pull Recommendations Field DownBoot/Reset Strapping Configuration Sheet 2 3 8-Bit Device Interface Setting Intel XScale Processor Operation SpeedIntel XScale Processor Cfg0 Cfg1 Cfgenn Actual Core Speed MHz4 16-Bit Device Interface 16-Bit Device Interface Flash InterfaceFlash Interface Example Uart InterfaceUart Signal Recommendations Uart Interface Example MII InterfaceMII NPE a Signal Recommendations Signal Interface MIIMII NPE C Signal Recommendations Sheet 1 MAC Management Signal Recommendations NPE a and NPE C MII NPE C Signal Recommendations Sheet 2Device Connection, MII MII Interface Example Gpio InterfaceUSB Interface Gpio Signal RecommendationsDesign Notes Name Type Pull Description Field Down USB Host Signal RecommendationsCommon Mode Choke Host Device Utopia Level 2/MIIA Utopia Level 2 InterfaceType Pull Name Description Field Down UTPOPDATA75 UTPOPDATA4UTPOPADDR40 UtpopfciUtpipfci ClavUtpipsoc ETHARXDATA30 EtharxclkUTPIPDATA6 UTPIPDATA5UTPIPDATA7 UTPIPADDR40Device Connection HSS InterfaceHSSTXDATA0 High-Speed, Serial InterfaceHSSTXCLK0 HSSRXDATA0HSS Interface Example SSP InterfaceSynchronous Serial Peripheral Port Interface Serial Flash and SSP Port SPI Interface Example PCI InterfacePCI Controller Sheet 1 PCI Controller Sheet 2 PCI Interface Block DiagramPciintan PciclkinPCI Option Interface Connect signal to same pin between PCI Parity Two devicesPCI Host/Option Interface Pin Description Sheet 1 Type Option Description Name Device-Pin Connection FieldSignal PCIREQN0 to one PCIREQN30 inputs to the Host On the Option device, these signals are notPCI Host/Option Interface Pin Description Sheet 2 Type Option Name Device-Pin Connection Description FieldPCI Host/Option Interface Pin Description Sheet 3 Jtag InterfaceClock Signals Clock SignalsInput System Clock Clock OscillatorRecommendations for Crystal Selection Power Supply PowerNominal Name Voltage Description Reset Timing Power SequenceDecoupling Capacitance Recommendations VCC Decoupling§ § PCB Overview Component PlacementGeneral Recommendations Component SelectionStack-Up Selection Component Placement on a PCBControlled-impedance traces Low-impedance power distribution Layer Stackup General Layout Guidelines General Layout and Routing GuideGeneral Component Spacing Signal Changing Reference PlanesGood Design Practice for VIA Hole Placement Pad-to-Pad Clearance of Passive Components to a PGA or BGA Clock Signal ConsiderationsUSB V2.0 Considerations MII Signal ConsiderationsCrosstalk EMI Design Considerations Power and Ground PlaneTrace Impedance § § Topology Electrical Interface@33 MHz Tcyc = 30 nSec Tval = 11 nSec Tprop = 10 nSecPCI Address/Data Routing Guidelines Clock DistributionParameter Routing Guidelines PCI Clock Routing Guidelines Trace Length LimitsRouting Guidelines Signal LoadingIntroduction Ddrii / Ddri SdramGroup Signal Name Description DDRII/I Signal GroupsDrasn / Ddrrasn Dcasn / DdrcasnDDR Sdram Supported Ddrii 32-bit Sdram Configurations Supported Ddri 32-bit Sdram ConfigurationsSupported Ddri 16-bit Sdram Configurations SizeaDDRII/DDRI Rcomp and Slew Resistances Pin Requirements Supported Ddrii 16-bit Sdram ConfigurationsAddress Size Leaf Select Total Technology Arrangement BanksDdrii OCD Pin Requirements DDR-II Symbol Parameter Units Min MaxDDR Clock Timings DDR Sdram Write Timings Symbol Parameter Minimum Nominal Maximum Units DDRII-400 MHz Interface -- Signal TimingsSymbol Parameter Minimum Nom Maximum Units DDR II/I Sdram Interface -- Signal TimingsTiming Relationships Printed Circuit Board Layer StackupGroup Signal Name Length mil Signal Package Lengths Sheet 1Timing Relationships Signal Package Lengths Sheet 2 Clock Group Signal Package Lengths Sheet 3Parameter Definition Data and Control GroupsDCB70/DDRCB70, DDQ310 / DDRDQ310 Ddrii Data and Control Signal Group Routing GuidelinesSignal Group Members Ddrii Command Signal Group Routing Guidelines§ §