Intel Xeon - Table of Contents

Datasheet 3
Intel® Xeon™ Processor with 800 MHz System Bus
Contents
1.0 Introduction....................................................................................................................................9
1.1 Terminology ........................................................................................................................10
1.2 References .........................................................................................................................12
1.3 State of Data.......................................................................................................................12
2.0 Electrical Specifications ............................................................................................................13
2.1 Power and Ground Pins......................................................................................................13
2.2 Decoupling Guidelines........................................................................................................13
2.2.1 V
CC
Decoupling .....................................................................................................13
2.2.2 VTT
Decoupling .....................................................................................................13
2.2.3 Front Side Bus AGTL+ Decoupling........................................................................13
2.3 Front Side Bus Clock (BCLK[1:0]) and Processor Clocking ...............................................14
2.3.1 Front Side Bus Frequency Select Signals (BSEL[1:0])..........................................14
2.3.2 Phase Lock Loop (PLL) and Filter .........................................................................15
2.4 Voltage Identification (VID) .................................................................................................15
2.5 Reserved or Unused Pins...................................................................................................17
2.6 Front Side Bus Signal Groups ............................................................................................18
2.7 GTL+ Asynchronous and AGTL+ Asynchronous Signals...................................................20
2.8 Test Access Port (TAP) Connection ...................................................................................21
2.9 Mixing Processors .............................................................................................................. 21
2.10 Absolute Maximum and Minimum Ratings .........................................................................21
2.11 Processor DC Specifications ..............................................................................................22
2.11.1 Flexible Motherboard Guidelines (FMB) ................................................................22
2.11.2 VCC Overshoot Specification ................................................................................27
2.11.3 Die Voltage Validation ...........................................................................................28
3.0 Mechanical Specifications..........................................................................................................31
3.1 Package Mechanical Drawings...........................................................................................31
3.2 Processor Component Keepout Zones...............................................................................34
3.3 Package Loading Specifications.........................................................................................34
3.4 Package Handling Guidelines.............................................................................................35
3.5 Package Insertion Specifications........................................................................................35
3.6 Processor Mass Specifications...........................................................................................35
3.7 Processor Materials ............................................................................................................ 35
3.8 Processor Markings ............................................................................................................36
3.9 Processor Pinout Coordinates ............................................................................................37
4.0 Signal Definitions .......................................................................................................................39
4.1 Signal Definitions ................................................................................................................39
5.0 Pin List..........................................................................................................................................49
5.1 Intel® Xeon™ Processor with 800 MHz System Bus Pin Assignments .............................49
5.1.1 Pin Listing by Pin Name.........................................................................................50
5.1.2 Pin Listing by Pin Number .....................................................................................58