Intel® IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor Datasheet Product Features For a complete list of product features, see “Product Features” on page 9. ■ Intel XScale® Core ■ Encryption/Authentication ■ Three Network Processor Engines ■ High-Speed UART ■ PCI Interface ■ Console UART ■ Two MII Interfaces ■ Internal Bus Performance Monitoring Unit ■ UTOPIA-2 Interface ■ 16 GPIOs ■ USB v 1.1 Device Controller ■ Four Internal Timers ■ Two High-Speed, Serial Interfaces ■ Packaging ■ SDRAM Interface —492-pin PBGA —Commercial/Extended Temperature Typical Applications ■ High-Performance DSL Modem ■ Control Plane ■ High-Performance Cable Modem ■ Integrated Access Device (IAD) ■ Residential Gateway ■ Set-Top Box ■ SME Router ■ Access Points (802.11a/b/g) ■ Network Printers ■ Industrial Controllers Document Number: 252479-004 June 2004 Intel® IXP42X Product Line and IXC1100 Control Plane Processor INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTELR PRODUCTS. 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Copyright © Intel Corporation 2004 2 Datasheet Intel® IXP42X Product Line and IXC1100 Control Plane Processor Contents Contents 1.0 Product Features ...........................................................................................................................9 1.1 Product Line Features ..........................................................................................................9 1.2 Processor Features ............................................................................................................12 1.3 About this Document ..........................................................................................................12 2.0 Functional Overview ...................................................................................................................14 2.1 Functional Units ..................................................................................................................17 2.1.1 Network Processor Engines (NPEs)......................................................................17 2.1.2 Internal Bus............................................................................................................18 2.1.2.1 North AHB..............................................................................................18 2.1.2.2 South AHB .............................................................................................19 2.1.2.3 APB Bus.................................................................................................19 2.1.3 MII Interfaces .........................................................................................................19 2.1.4 UTOPIA 2 ..............................................................................................................20 2.1.5 USB Interface ........................................................................................................20 2.1.6 PCI Controller ........................................................................................................20 2.1.7 SDRAM Controller .................................................................................................20 2.1.8 Expansion Bus.......................................................................................................21 2.1.9 High-Speed, Serial Interfaces................................................................................21 2.1.10 High-Speed and Console UARTs ..........................................................................22 2.1.11 GPIO......................................................................................................................22 2.1.12 Internal Bus Performance Monitoring Unit (IBPMU) ..............................................22 2.1.13 Interrupt Controller.................................................................................................22 2.1.14 Timers....................................................................................................................23 2.1.15 AHB Queue Manager ............................................................................................23 2.2 Intel XScale® Core..............................................................................................................23 2.2.1 Super Pipeline .......................................................................................................24 2.2.2 Branch Target Buffer (BTB) ...................................................................................25 2.2.3 Instruction Memory Management Unit (IMMU)......................................................26 2.2.4 Data Memory Management Unit (DMMU) .............................................................26 2.2.5 Instruction Cache (I-Cache)...................................................................................26 2.2.6 Data Cache (D-Cache) ..........................................................................................27 2.2.7 Mini-Data Cache ....................................................................................................27 2.2.8 Fill Buffer (FB) and Pend Buffer (PB).....................................................................28 2.2.9 Write Buffer (WB)...................................................................................................28 2.2.10 Multiply-Accumulate Coprocessor (CP0)...............................................................28 2.2.11 Performance Monitoring Unit (PMU)......................................................................29 2.2.12 Debug Unit.............................................................................................................29 3.0 Functional Signal Descriptions..................................................................................................30 4.0 Package and Pinout Information................................................................................................42 4.1 Package Description...........................................................................................................42 4.2 Signal-Pin Descriptions.......................................................................................................45 4.3 Package Thermal Specifications ........................................................................................73 4.3.1 Commercial Temperature ......................................................................................73 4.3.2 Extended Temperature ..........................................................................................73 Datasheet 3 Intel® IXP42X Product Line and IXC1100 Control Plane Processor Contents 5.0 Electrical Specifications ............................................................................................................. 74 5.1 Absolute Maximum Ratings................................................................................................ 74 5.2 VCCPLL1, VCCPLL2, VCCOSCP, VCCOSC Pin Requirements .................................................. 74 5.2.1 VCCPLL1 Requirement............................................................................................74 5.2.2 VCCPLL2 Requirement............................................................................................75