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Contents
1
Introduction .............................................................................................................. 9
1.1
1.2
Architectural Overview ....................................................................................... 15
1.2.1
1.2.2
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
Differential Signaling ......................................................................................... 23
2.2
Signal Groups ................................................................................................... 24
2.3
Reference Clocking Specifications ........................................................................ 26
®
2.4
2.4.1
Intel
2.4.2
2.4.3
Intel
2.5
Processor Absolute Maximum Ratings................................................................... 38
2.5.1
Intel
2.5.2
2.6
Processor DC Specifications ................................................................................ 39
2.6.1
Processor 9300 Series............................................................................. 40
2.6.2
Processor 9500 Series............................................................................. 43
2.6.3
2.6.4
Intel
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
Intel® Itanium® Processor 9300 Series .................................................... 58
2.7.2
2.8
2.9
RSVD, Unused, and DEBUG Pins .......................................................................... 63
2.10
Mixing Processors.............................................................................................. 64
2.11
Supported Power-up Voltage Sequence ................................................................ 64
Intel® Itanium® Processor 9300 Series .................................................... 66
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
®
®
Intel
Itanium
Processor 9300 Series and 9500 Series Datasheet
®
®
Processor 9300 Series Overview ....................................... 15
®
®
Processor 9500 Series Overview ....................................... 16
®
®
®
QuickPath Interconnect for 4.8 and 6.4 GT/s .................................... 32
®
®
Itanium
Processor 9500 Series Processor Requirements for
®
SMI Specifications for 6.4 GT/s ....................................................... 37
®
®
Processor 9300 Series Absolute Maximum Ratings............... 39
®
®
®
®
Processor 9300 Series Uncore, Core, and Cache Tolerances .. 44
®
®
Processor 9500 Series Uncore and Core Tolerances ............. 49
®
®
Processor 9500 Series ..................................................... 59
®
®
®
Processor 9500 Series ..................................................... 67
®
Scalable Memory Interconnect
®
SMI Signaling Specifications ..................... 28
®
®
®
Processor 9300 Series only) ............... 62
®
®
3

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