Datasheet

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Intel

Itanium

Processor 9300 Series and 9500 Series Datasheet 167

1Introduction..............................................................................................................9

1.1 Overview ...........................................................................................................9

1.2 Architectural Overview.......................................................................................15

1.2.1 Intel

Itanium

Processor 9300 Series Overview .......................................15

1.2.2 Intel

Itanium

Processor 9500 Series Overview .......................................16

1.3 Processor Feature Comparison ............................................................................19

1.4 Processor Abstraction Layer................................................................................20

1.5 Mixing Processors of Different Frequencies and Cache Sizes ....................................20

1.6 Terminology .....................................................................................................20

1.7 State of Data....................................................................................................21

1.8 Reference Documents........................................................................................21

2 Electrical Specifications...........................................................................................23

2.1 Intel

QuickPath Interconnect and Intel

Scalable Memory Interconnect

Differential Signaling .........................................................................................23

2.2 Signal Groups...................................................................................................24

2.3 Reference Clocking Specifications ........................................................................26

2.4 Intel

QuickPath Interconnect and Intel

SMI Signaling Specifications.....................28

2.4.1 Intel® Itanium® Processor 9300 Series

Intel

QuickPath Interconnect and

Intel

SMI Specifications for 4.8 GT/s.......................................................28

2.4.2 Intel® Itanium® Processor 9500 Series Requirements for

Intel

QuickPath Interconnect for 4.8 and 6.4 GT/s ....................................32

2.4.3 Intel

Itanium

Processor 9500 Series Processor Requirements for

Intel

SMI Specifications for 6.4 GT/s.......................................................37

2.5 Processor Absolute Maximum Ratings...................................................................38

2.5.1 Intel

Itanium

Processor 9300 Series Absolute Maximum Ratings...............39

2.5.2 Intel

Itanium

Processor 9500 Series Absolute Maximum Ratings...............39

2.6 Processor DC Specifications ................................................................................39

2.6.1 Flexible Motherboard Guidelines for the Intel

Itanium

Processor 9300 Series.............................................................................40

2.6.2 Flexible Motherboard Guidelines for the Intel

Itanium

Processor 9500 Series.............................................................................43

2.6.3 Intel

Itanium

Processor 9300 Series Uncore, Core, and Cache Tolerances.. 44

2.6.4 Intel

Itanium

Processor 9500 Series Uncore and Core Tolerances ............. 49

2.6.5 Overshoot and Undershoot Guidelines.......................................................52

2.6.6 Signal DC Specifications..........................................................................53

2.6.7 Motherboard-Socket Specification for VR Sense Point..................................57

2.7 Core and Uncore Voltage Identification.................................................................57

2.7.1 Core and Uncore Voltage Identification for the

Intel® Itanium® Processor 9300 Series....................................................58

2.7.2 Core and Uncore Voltage Identification for the

Intel

Itanium

Processor 9500 Series .....................................................59

2.8 Cache Voltage Identification (Intel

Itanium

Processor 9300 Series only)...............62

2.9 RSVD, Unused, and DEBUG Pins..........................................................................63

2.10 Mixing Processors..............................................................................................64

2.11 Supported Power-up Voltage Sequence ................................................................64

2.11.1 Supported Power-up Voltage Sequence for the

Intel® Itanium® Processor 9300 Series....................................................66

2.11.2 Supported Power-up Voltage Sequence for the

Intel

Itanium

Processor 9500 Series .....................................................67

2.11.3 Power-up Voltage Sequence Timing Requirements......................................68

2.12 Supported Power-down Voltage Sequence ............................................................68

2.13 Timing Relationship Between RESET_N and SKTID.................................................69

2.14 Test Access Port (TAP) Connection.......................................................................71

3 Pin Listing ...............................................................................................................73

3.1 Processor Package Bottom Pin Assignments..........................................................73