1、ANSI/VITA 31.1-203American National Standardfor Gigabit Ethernet on VME64x BckplaesSecretariatVMEbus International Trade AssociationApproved June 2003merican National Standards Institute, Inc.VMEbus International Trade AssociationPO Box 19658, Foutain Hills, AZ 85269PH: 480-837-7486, FAX: Contact VI
2、TA OfficeE-mail: , URL: http:/The page left blank on purpose.ANSI/VITA 31.1-203American National Standardfor Gigabit Ethernet on VME64x BckplaesSecretariatVMEbus International Trade AssociationApproved June 2003merican National Standards Institute, Inc.AbstractThis standard defines a pin assignment
3、and interconnection methodology for implementing a10/100/1000BASE-T Ethernet switched network on a ANSI/VITA 1.1 VME64x backplane.AmericanNatiolSndarApproval of an American National Standard requires verificationby ANSI that the requirements for due process, consensus, andother criteria for approval
4、 have been met by the standardsdeveloper.Consensus is established when, in the judgment of the ANSIBoard of Standards Review, substantial agreement has beenreached by directly and materially affected interests.Substantial agreement means much more than a simplemajority, but not necessarily unanimity
5、. Consensus requiresthat all views and objections be considered, and that a concertedeffort be made toward their resolution.The use of American National Standards is completely voluntary;their existence does not in any respect preclude anyone, whetherhe has approved the standards or not, from manufa
6、cturing,marketing, purchasing, or using products, processes, orprocedures not conforming to the standards.The American National Standards Institute does not developstandards and will in no circumstances give an interpretation ofany American National Standard. Moreover, no person shallhave the right
7、or authority to issue an interpretation of anAmerican National Standard in the name of the AmericanNational Standard Institute. Requests for interpretations shouldbe addressed to the secretariat or sponsor whose name appearson the title page of this standard.CAUTION NOTICE: This American National St
8、andard may berevised or withdrawn at any time. The procedures of theAmerican National Standards Institute require that action betaken periodically to reaffirm, revise, or withdraw this standard.Purchases of American National Standards may receive currentinformation on all standard by calling or writ
9、ing the AmericanNational Standards Institute.Published byVMEbus International Trade AssociationPO Box 19658, Fountain Hills, AZ 85269Copyright 2003 by VMEbus International Trade AssociationAll rights reserved.No part of this publication may be reproduced in any form, in an electronic retrievalsystem
10、 or otherwise, without prior written permission of the publisher.Printed in the United States of America - R1.0ISBN 1-885731-31-0ANSI/VITA 31.11TABLE OF CONTENTS1 Introduction to Gigabit Ethernet on VME64x Backplanes41.1 Gigabit Ethernet on VME64x Backplanes Objectives .41.2 Definitions41.3 Referenc
11、es 41.4 Standard Terminology42 P0 Connector Pin Assignment .72.1 Introduction72.2 Ethernet Port Pin Assignment73 Fabric Slot Pin Assignment93.1 Introduction93.2 Fabric Slot Mechanics93.3 Power Pin Locations 94 Backplane Design.154.1 Introduction154.2 Backplane Design Requirements15Appendix A - Gloss
12、ary of Additional Terms16ANSI/VITA 31.12List of FiguresFIGURE 2-1 GIGABIT ETHERNET PORT PIN ASSIGNMENT.7FIGURE 2-2 ETHERNET PORT LOCATION ON P0 CONNECTOR8FIGURE 3-1 FABRIC SLOT CONNECTOR LOCATIONS 11FIGURE 3-2 P1/J1 & P2/J2 FABRIC SLOT POWER CONNECTOR ASSIGNMENTS 12FIGURE 3-3 P3/J3 CONNECTOR ETHERNE
13、T PORT LOCATIONS.13FIGURE 3-4 P5/J5 CONNECTOR ETHERNET PORT LOCATIONS.14ANSI/VITA 31.13AbstractThis standard defines a pin assignment and interconnection methodology forimplementing a 10/100/1000BASE-T Ethernet switched network on a VME64xbackplane. The formal name of this standard is Gigabit Ethern
14、et on VME64x BackplanesStandard.ForewordVME became the industrial bus of choice in the 80s with hundreds of manufacturessupplying more than a thousand different boards to the worldwide market place.Thousands of customers utilized VME for an extremely broad number of applications.In the late 80s, the
15、 VME64 standard expanded VME for 64-bit data and addresscapability. This change also affected the connectors used at the plug-in module interface.The VME64 designers utilized IEC 61076-4-101 2 mm based connectors to increaseconnector pin counts and to facilitate the adoption of certain architectural
16、 features andcapabilities. The PICMG 2.16 packet Switched backplane specification adds a switchednetwork based on Gigabit Ethernet to CompactPCI backplanes. The PICMG 2.16CompactPCI P3 connector has two Gigabit Ethernet ports for improved performance andredundancy. The CompactPCI P3 connector and th
17、e VME64x P0 connector are identicaland have the same placement on the backplane. This standard adopts the PICMG 2.16 P3connector pin assignment for use on VME64x boards. This standard also adopts thedefinition of the fabric card described in PICMG 2.16. PICMG 2.16 compliant systemsand VITA 31.1 syst
18、ems can use the same switched fabric boards.Mike MacphersonMITRE CorporationGigabit Ethernet on VME64x BackplanesWorking Group MembersAt the time this standard was completed, the Working Group for this standard had thefollowing membership:Name CompanyRay Alderman VITAAndreas Lenkish Schroff GmbHMike
19、 Macpherson MITRE CorporationJohn Rynearson VITAMichael Thompson Pentair Electronic PackagingANSI/VITA 31.141 Introduction to Gigabit Ethernet on VME64x Backplanes1.1 Gigabit Ethernet on VME64x Backplanes ObjectivesThis standard defines a pin assignment and interconnection methodology forimplementin
20、g a 10/100/1000BASE-T Ethernet switched network on a VME64xbackplane. The VME64x boards have the same pin assignment as the corresponding P3connector on CompactPCI boards. VME64x systems and CompactPCI systems can usethe same switched fabric boards.1.2 DefinitionsSee Appendix A for the new terminolo
21、gy specific to the added features described in thisstandard.1.3 ReferencesThe following publications are used in conjunction with this standard. When they aresuperseded by an approved revision, that revision shall apply.ANSI/IEEE Std 802.3 CSMA/CD Access Method and Physical LayerSpecificationsANSI/V
22、ITA 30-2000 2 mm Connector Practice for Euroboard Systems StandardIEC 61076-4-101 Detail Specification for two-part connector modules havinga basic grid of 2,0mm for printed boards and backplanes inaccordance with IEC 917PICMG 2.0 CompactPCI SpecificationPICMG 2.16 CompactPCI Packet Switched Backpla
23、ne1.4 Standard TerminologyTo avoid confusion and to make very clear what the requirements for compliance are,many of the paragraphs in this standard are labeled with keywords that indicate the typeof information they contain. The keywords are listed below:RuleRecommendationSuggestionPermissionObserv
24、ationAny text not labeled with one of these keywords describes the VME64 structure oroperation. It is written in either a descriptive or a narrative style. These keywords areused as follows:ANSI/VITA 31.15Rule .:Rules form the basic framework of this standard. They aresometimes expressed in text for
25、m and sometimes in the form offigures, tables or drawings. All rules shall be followed to ensurecompatibility between board and backplane designs. All rules usethe “shall“ or “shall not“ words to emphasize the importance of therule. The “shall“ or “shall not“ words are reserved exclusively forstatin
26、g rules in this standard and are not used for any otherpurpose.Recommendation .:Wherever a recommendation appears, designers would be wise totake the advice given. Doing otherwise might result in poorperformance or awkward problems. Recommendations found inthis standard are based on experience and a
27、re provided to designersto speed their traversal of the learning curve. All recommendationsuse the “should“ or “should not“ words to emphasize theimportance of the recommendation. The “should“ or “should not“words are reserved exclusively for stating recommendations in thisstandard and are not used
28、for any other purpose.Suggestion .:A suggestion contains advice, which is helpful but not vital. Thereader is encouraged to consider the advice before discarding it.Some design decisions that need to be made are difficult untilexperience has been gained. Suggestions are included to help adesigner wh
29、o has not yet gained this experience.Permission .:In some cases a rule does not specifically prohibit a certain designapproach, but the reader might be left wondering whether thatapproach might violate the spirit of the rule or whether it mightlead to some subtle problem. Permissions reassure the re
30、ader that acertain approach is acceptable and will cause no problems. Allpermissions use the “may“ words to emphasize the importance ofthe permission. The lower-case “may“ words are reservedexclusively for stating permissions in this standard and are not usedfor any other purpose.Observation .:Obser
31、vations do not offer any specific advice. They usually follownaturally from what has just been discussed. They spell out theimplications of certain rules and bring attention to things that mightANSI/VITA 31.16otherwise be overlooked. They also give the rationale behindcertain rules so that the reade
32、r understands why the rule must befollowed.ANSI/VITA 31.172 P0 Connector Pin Assignment2.1 IntroductionThe IEC 61076-4-101 2 mm connector that is used for the VME64x P0 has 7 rows ofpins. The outside two rows, z and f, are shield pins and the c row is an additional groundpin. These pins are committe
33、d to logic ground at the backplane and plug-in board. Thecenter five rows of the connector are available for I/O.Each VME64x board (node board) can have one or two Ethernet connections on the P0connector. The Ethernet connection uses two slices for a single 10/100/1000 Mb/sEthernet port, as shown in
34、 Figure 2-1. This port also supports Auto-Negotiation asdefined in ANSI/IEEE 802.3. A 10BASE-T or 100BASE-T connection will use the Txand Rx pairs for communication. A 1000BASE-T connection will use all four pairs forcommunication.2.2 Ethernet Port Pin AssignmentThe IEEE 802.3u 10/100 Mb/s full-dupl
35、ex Ethernet connections use two pairs of pinslabeled Tx and Rx in Figure 2-1. IEEE 802.3ab 1000Mb/s connections use four pairs ofpins labeled as BI_DA, BI_DB, BI_DC, and BI_DC in Figure 2-1. This pin assignmentcorresponds to the MDI signals in IEEE 802.3.Connector Row z a b c d e fCommitment GND +Tx
36、BI_DA+-TxBI_DA-GND BI_DC+ BI_DC- GNDCommitment GND +RxBI_DB+-RxBI_DB-GND BI_DD+ BI_DD- GNDFigure 2-1 Gigabit Ethernet Port Pin assignmentANSI/VITA 31.18Figure 2-2 shows where the Ethernet ports are located on the P0 connector. Port A usespositions 2 and 3. Port B uses positions 4 and 5.Note: The pin
37、s in connector position 1 and position 6 cannot be used for I/O because ofthe possibility of interfering with the Ethernet signals.Connector RowConnectorPositionz a b c d e f1 GND NC NC NC NC NC GND2 GND +TxaLPa_DA+-TxaLPa_DA-GND LPa_DC+ LPa_DC- GND3 GND +RxaLPa_DB+-RxaLPa_DB-GND LPa_DD+ LPa_DD- GND
38、4 GND +TxbLPb_DA+-TxbLPb_DA-GND LPb_DC+ LPb_DC- GND5 GND +RxbLPb_DB+-RxbLPb_DB-GND LPb_DD+ LPb_DD- GND6 GND NC NC NC NC NC GND7 GND GND8 GND GND9 GND GND10 GND GND11 GND GND12 GND GND13 GND GND14 GND GND15 GND GND16 GND GND17 GND GND18 GND GND19 GND GNDFigure 2-2 Ethernet Port Location on P0 Connect
39、orANSI/VITA 31.193 Fabric Slot Pin Assignment3.1 IntroductionThe Ethernet ports on each VME64x Node Board are connected to one or two router orswitch boards that are installed in the fabric slots in the backplane. For redundancy orimproved performance, two router or switch boards can be used.The fab
40、ric slot pin assignment in this standard is identical to the pin assignment defined inthe PICMG 2.16 Packet Switched Backplane specification. The router or switch boardsfor PICMG 2.16 systems can be used in VITA 31.1 systems.Note: The Fabric Slot uses the CompactPCI style of numbering the pins from
41、bottom totop.3.2 Fabric Slot MechanicsThe router or switch board uses the standard VME64x mechanical size and mechanicalpackaging but uses all 2 mm HM connectors.3.3 Power Pin LocationsThe bottom two connectors on the fabric slot supply power to the router or switchboardRule 3-1The power pin commitm
42、ents of the fabric slot shall be according toFigure 3-2.Observation 3-1Since the fabric slot pin assignment in this standard is identical tothe pin assignment defined in the PICMG 2.16 Packet SwitchedBackplane specification, the Intelligent Platform Management Bus(IPMB) pins are also available on th
43、e fabric slots in this standard.Rule 3-2If System Management is being employed, then the IPMB signalsSHALL be implemented per VITA 38 System Management forVME.3.4 Ethernet Port LocationsThe next two connectors on the fabric slots are used for the Ethernet Ports on the routeror switch board.Rule 3-3A
44、NSI/VITA 31.110Ethernet ports on the fabric slot shall use the pin assignmentdefined in Figures 3-3 and 3-4.ANSI/VITA 31.111Figure 3-1 Fabric Slot Connector LocationsANSI/VITA 31.11222 GND GA4 GA3 GA2 GA1 GA0 GND21 GND Reserved Reserved Reserved Reserved Reserved GND20 GND Reserved Reserved Reserved
45、 GND Reserved GND19 GND Reserved Reserved Reserved Reserved Reserved GND18 GND Reserved Reserved Reserved GND Reserved GND P217 GND Reserved GND Reserved Reserved Reserved GND /16 GND Reserved Reserved Reserved GND Reserved GND J215 GND Reserved GND Reserved Reserved Reserved GND14 GND Reserved Rese
46、rved Reserved GND Reserved GND13 GND Reserved Reserved Reserved Reserved Reserved GND C12 GND Reserved Reserved Reserved GND Reserved GND O11 GND Reserved GND Reserved Reserved Reserved GND N10 GND Reserved Reserved Reserved GND Reserved GND N9 GND Reserved GND Reserved Reserved Reserved GND E8 GND
47、Reserved Reserved Reserved GND Reserved GND C7 GND Reserved GND Reserved Reserved Reserved GND T6 GND Reserved Reserved Reserved GND Reserved GND O5 GND Reserved GND Reserved Reserved Reserved GND R4 GND Reserved Reserved Reserved GND Reserved GND3 GND Reserved Reserved Reserved Reserved Reserved GN
48、D2 GND Reserved Reserved Reserved Reserved Reserved GND1 GND Reserved Reserved Reserved Reserved Reserved GND25 GND 5V Reserved Reserved 3.3V 5V GND24 GND Reserved 5V Reserved Reserved Reserved GND23 GND Reserved Reserved Reserved 5V Reserved GND22 GND Reserved GND 3.3V Reserved Reserved GND21 GND 3
49、.3V Reserved Reserved Reserved Reserved GND P120 GND Reserved GND Reserved Reserved Reserved GND /19 GND 3.3V Reserved Reserved GND Reserved GND J118 GND Reserved GND 3.3V Reserved Reserved GND17 GND 3.3V IPMB_SCL IPMB_SDA GND Reserved GND16 GND Reserved GND Reserved Reserved Reserved GND C15 GND 3.3V Reserved Reserved GND Reserved GND O12-14 KEY AREA N11 GND Reserved Reserved Reserved GND Reserved GND N10 GND Reserved GND 3.3V Reserved Reserved GND E9 GND Reserved Reserved Reserved GND Reserved GND C8 GND Reserved GND Reserved Reserved Reserved GND T7 GND Reserv
