EWIXP425BCT Intel, EWIXP425BCT Datasheet - Page 3
EWIXP425BCT
Manufacturer Part Number
EWIXP425BCT
Description
Manufacturer
Intel
Datasheet
1.EWIXP425BCT.pdf
(96 pages)
Specifications of EWIXP425BCT
Core Operating Frequency
400MHz
Package Type
BGA
Pin Count
492
Mounting
Surface Mount
Lead Free Status / Rohs Status
Compliant
Contents—Intel
Contents
1.0
2.0
3.0
December 2007
Document Number: 252817-008US
Introduction .............................................................................................................. 9
1.1
1.2
1.3
1.4
1.5
1.6
System Architecture ................................................................................................ 15
2.1
2.2
General Hardware Design Considerations ................................................................ 19
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
About this Document ........................................................................................... 9
Related Documentation ........................................................................................ 9
Acronyms and Abbreviations ............................................................................... 10
Overview ......................................................................................................... 11
Key Features .................................................................................................... 11
Typical Applications ........................................................................................... 14
System Architecture Description .......................................................................... 15
System Memory Map ......................................................................................... 16
PC133 SDRAM Interface ..................................................................................... 19
3.1.1
3.1.2
3.1.3
Expansion Bus .................................................................................................. 25
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
UART Interface ................................................................................................. 29
3.3.1
3.3.2
3.3.3
MII Interface .................................................................................................... 32
3.4.1
3.4.2
GPIO Interface.................................................................................................. 35
3.5.1
3.5.2
I
3.6.1
3.6.2
USB Interface ................................................................................................... 38
3.7.1
3.7.2
3.7.3
UTOPIA Interface .............................................................................................. 40
3.8.1
3.8.2
HSS Interface ................................................................................................... 42
3.9.1
3.9.2
PCI Interface .................................................................................................... 44
3.10.1 PCI Interface Signals .............................................................................. 45
3.10.2 PCI Interface Block Diagram .................................................................... 47
3.10.3 Design Notes ......................................................................................... 47
JTAG Interface .................................................................................................. 48
®
2
C Interface .................................................................................................... 36
IXP42X product line and IXC1100 control plane processors
SDRAM Interface Signals ......................................................................... 20
SDRAM Block Diagrams........................................................................... 20
SDRAM Initialization ............................................................................... 24
Expansion Bus Interface Signals ............................................................... 26
Configuration Straps ............................................................................... 26
3.2.2.1
Flash Interface....................................................................................... 28
SRAM Interface ...................................................................................... 28
Design Notes ......................................................................................... 29
UART Interface Signals ........................................................................... 29
High-Speed UART................................................................................... 30
Console UART ........................................................................................ 31
Ethernet Interface Signals ....................................................................... 33
MII Block Diagram.................................................................................. 35
GPIO Interface Signals ............................................................................ 36
Design Notes ......................................................................................... 36
Pull-Ups and Pull-Downs.......................................................................... 38
Layout Notes ......................................................................................... 38
Signals ................................................................................................. 38
USB Interface ........................................................................................ 39
Design Notes ......................................................................................... 39
Interface Signals .................................................................................... 40
UTOPIA-2 Interface Block Diagram ........................................................... 42
Interface Signals .................................................................................... 43
HSS Interface Block Diagram ................................................................... 44
User-Configurable Field.............................................................. 27
Intel
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
Hardware Design Guidelines
3