Lenovo Xeon 1.6GHz 59P5107 User Manual

3

Introduction....................................................................................................................................9

Terminology ........................................................................................................................ 10
1.1.1

Processor Packaging Terminology ........................................................................ 10

Electrical Specifications ............................................................................................................. 13

System Bus and GTLREF .................................................................................................. 13

Power and Ground Pins...................................................................................................... 13

Decoupling Guidelines ........................................................................................................13
2.3.1

 

Decoupling .................................................................................................... 14

System Bus AGTL+ Decoupling ............................................................................ 14

System Bus Clock (BCLK[1:0]) and Processor Clocking ....................................................14
2.4.1

 Voltage Identification ......................................................................................................... 17
2.6.1

Mixing Processors of Different Voltages ................................................................ 18

Reserved Or Unused Pins .................................................................................................. 19

System Bus Signal Groups .................................................................................................19

Asynchronous GTL+ Signals .............................................................................................. 21

Maximum Ratings ...............................................................................................................21

Processor DC Specifications .............................................................................................. 22

AGTL+ System Bus Specifications .....................................................................................27

System Bus AC Specifications ........................................................................................... 27

System Bus Signal Quality Specifications................................................................................ 39

System Bus Clock (BCLK) Signal Quality
Specifications and Measurement Guidelines...................................................................... 39

System Bus Signal Quality Specifications
and Measurement Guidelines ............................................................................................. 40

System Bus Signal Quality Specifications
and Measurement Guidelines ............................................................................................. 43
3.3.1

Overshoot/Undershoot Guidelines.........................................................................43

Overshoot/Undershoot Magnitude .........................................................................44

Overshoot/Undershoot Pulse Duration ..................................................................44

Activity Factor ........................................................................................................44

Reading Overshoot/Undershoot Specification Tables ........................................... 45

Determining When a System Meets the Overshoot/Undershoot
Specifications......................................................................................................... 45

Mechanical Specifications .......................................................................................................... 51