© PXI Systems Alliance v PXI Hardware Specification Rev. 2.1 02/04/2003
Contents
1. Introduction
1.1 Objectives........................................................................................................................................ 1
1.2 Intended Audience and Scope......................................................................................................... 2
1.3 Background and Terminology......................................................................................................... 2
1.4 Applicable Documents .................................................................................................................... 3
1.5 Useful Web Sites............................................................................................................................. 4
2. PXI Architecture Overview
2.1 Mechanical Architecture Overview ................................................................................................ 5
2.1.1 Chassis Supporting Stacking 3U Modules in a 6U Slot.................................................. 6
2.1.2 System Slot Location ...................................................................................................... 7
2.1.3 Additional Mechanical Features...................................................................................... 8
2.1.4 Interoperability with CompactPCI .................................................................................. 8
2.2 Electrical Architecture Overview.................................................................................................... 8
2.2.1 Peripheral Component Interconnect (PCI) Features ....................................................... 9
2.2.2 Local Bus......................................................................................................................... 9
2.2.3 System Reference Clock ................................................................................................. 10
2.2.4 Trigger Bus...................................................................................................................... 10
2.2.5 Star Trigger ..................................................................................................................... 10
2.2.6 System Expansion with PCI-PCI Bridge Technology .................................................... 11
2.3 Software Architecture Overview..................................................................................................... 11
3. Mechanical Requirements
3.1 CompactPCI Mechanical Requirements ......................................................................................... 12
3.2 Maximum Number of Slots............................................................................................................. 12
3.3 System Slot Location and Rules ..................................................................................................... 12
3.4 Logos and Compatibility Glyphs .................................................................................................... 13
3.5 Slot Numbering for 6U Chassis that Support 3U Stacking............................................................. 14
3.6 Environmental Testing.................................................................................................................... 15
3.7 Cooling Specifications .................................................................................................................... 16
3.7.1 Plug-in Module Requirements ........................................................................................ 16
3.7.2 Chassis Requirements ..................................................................................................... 16
3.8 Chassis and Module Grounding Requirements and EMI Guidelines ............................................. 17
3.9 Regulatory Requirements................................................................................................................ 17
3.9.1 Requirements for EMC ................................................................................................... 17
3.9.2 Requirements for Electrical Safety ................................................................................. 17
3.9.3 Additional Requirements for Chassis.............................................................................. 18
4. Electrical Requirements
4.1 PXI Signal Groups .......................................................................................................................... 19
4.1.1 P1/J1: Signals .................................................................................................................. 19
4.1.2 P2/J2: Signals .................................................................................................................. 19
4.1.2.1 Signals from CompactPCI 64-bit Connector Specification....................... 20
4.1.2.2 PXI Bused Reserved Signals ..................................................................... 21
4.1.2.3 Local Buses................................................................................................ 21
4.1.2.4 Reference Clock: PXI_CLK10.................................................................. 23
4.1.2.5 Trigger Bus ................................................................................................ 23
4.1.2.6 Star Trigger................................................................................................ 27
4.1.3 Electrical Guidelines for 6U............................................................................................ 29
4.1.3.1 6U Peripheral Module Connector Population............................................ 29
4.1.3.2 6U Chassis that Support Stacking 3U Modules......................................... 29
4.2 Connector Pin Assignments (J1/P1 and J2/P2)............................................................................... 30
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2010-06-22
09:01:22
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chiclee2012-01-05完全没用 就是一个brief而已
