IXP2400 datasheet(4/126 Pages) INTEL

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Intel® IXP2400 Network Processor

Datasheet

3.3.3

SlowPort Clock Behavior During Reset................................................. 69

3.3.4

Pullup/Pulldown and Unused Pin Guidelines ........................................ 69

3.4

Ball Information .................................................................................................. 70

3.5

Ball List Tables................................................................................................... 72

3.5.1

Balls Listed in Alphanumeric Order by Signal Name............................. 72

3.5.2

Balls Listed in Alphanumeric Order by Ball Location............................. 85

4.0

Electrical Specifications .................................................................................................. 98

4.1

Absolute Maximum Ratings ............................................................................... 98

4.1.1

Reducing Power Consumption............................................................ 100

4.2

AC/DC Specifications....................................................................................... 101

4.2.1

Clock Timing Specifications ................................................................ 101

4.2.2

PCI I/O Unit ......................................................................................... 101

4.2.3

SRAM .................................................................................................. 105

4.2.4

DDR SDRAM ...................................................................................... 107

4.2.5

Media and Switch Fabric (MSF) Interface ........................................... 114

4.2.6

CBus ................................................................................................... 117

4.2.7

SlowPort, GPIO, and Serial I/O Buffer ................................................ 118

4.2.8

JTAG ................................................................................................... 121

5.0

Mechanical Specifications............................................................................................. 124

5.1

Package Dimensions ....................................................................................... 124

Figures

IXP2400 Network Processor OC-48 Line Card ...................................................7

IXP2400 Network Processor Functional Signal Groups Diagram 1 ....................8

IXP2400 Network Processor Functional Signal Groups Diagram 2 ....................9

IXP2400 Network Processor Chassis Concept Block Diagram ........................10

Intel XScale® Core Internal Block Diagram .......................................................12

Microengine Block Diagram ..............................................................................14

Clock Configuration...........................................................................................18

Example SlowPort Connection..........................................................................22

High-Level Overview of Ballout

Functional Groupings Diagram (Ball Side) ........................................................23

IXP2400 Network Processor Ball Map (bottom left side) ..................................70

IXP2400 Network Processor Ball Map (bottom right side) ................................71

PLL Power Supply Connection .......................................................................100

SYS_CLK Timing ............................................................................................101

PCI Clock Signal AC Parameter Measurements.............................................103

PCI Bus Signals ..............................................................................................104

QDR Load Circuit ............................................................................................106

QDRII Timing Reference .................................................................................107

Data and Error Correction Setup/Hold Relationship to/from

Data Strobe (Read Operation) ........................................................................109

Data and Error Correction Valid Before and After Data

Strobe (Write Operation) .................................................................................110

Write Preamble Duration .................................................................................110

Write Postamble Duration ...............................................................................110

Command Signals Valid Before and After Clock Rising Edge ........................110

Clock Enable Valid Before and After Clock Rising Edge ................................111

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