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1

by Marc Ruocco

High-Speed Interfaces:

FPDP and RACEway

High-Speed Interfaces:

FPDP and RACEway

RACE, RACEway and RACE++ are trademarks of Mercury

Computer Systems, Inc.

2

FPDP and RACEwayFPDP and RACEway

Similarities:High speed interfacesCapable of 160 MB/sec data transfersDeliver 32-bit word transfersOperation independent of the VMEbusAdopted as industry standards by VITA

Differences:Everything else!

3

What is FPDP?What is FPDP?

Front Panel Data Port (FPDP) is a high speed synchronous bus

Adopted as an industry standard - ANSI/VITA 17-1998 (www.vita.com)

Delivers 32-bit word transfers between VME boards at up to 160MB/sec

Operation is completely independent of the VMEbus

Communication is through front panel 80-pin connectors via ribbon cable

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FPDP FeaturesFPDP Features

High Speed Data Transfer - up to 160 MB/sec Depending on Clock Signal Used

Ports can be Configured to Transmit or Receive Data under Software Control

No Address or Arbitration Cycles; Data Rates Fully Defined by Clock Frequency

Connects Multiple Boards in the Same VMEbus Chassis, or Between Multiple Chassis

Allows Integration w/ Other Vendors Boards

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FPDP ConnectionFPDP Connection

VME Rack - Front View

6

FPDP Data TransfersFPDP Data Transfers Master device generates a free-running

clock (TTL or PECL). Pentek products support both, default to PECL.

Clock frequency defines the maximum transfer rate - 80 MB/sec for TTL or 160 MB/sec for PECL

Interface is configured as transmitter or receiver using software control

Data can be sent in either framed or unframed form. Pentek products support transfer of unframed data

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Pentek FPDP ModelsPentek FPDP Models

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New FPDP Technology: FPDP IINew FPDP Technology: FPDP II

Increased Bandwidth using Double-Edged Clocking

Data Transfer Rates more than Doubled: 400 MB/sec using 50 MHz Clock

Backwards CompatibleCan use TTL Clock up to 20 MHz, or PECL

Clock up to 50 MHzCan Switch between Double and Single-Edged

Clock SettingsUses same 80-Pin Ribbon Cable and

Connector as Current FPDP

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What is RACEway?What is RACEway?

High speed synchronous backplane fabric

Adopted as an industry standard - ANSI/VITA 5.1-1999 (www.vita.com)

Delivers 32-bit word transfers between VME boards at up to 160MB/sec

Operation is completely independent of the VMEbus

RACEway Interlink Modules (ILKs) connect VME boards to the RACEway backplane fabric - bridge up to 16 slots

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RACEway FeaturesRACEway Features

High Speed Data Transfer -160MB/sec, 1280 MB/sec aggregate (ILK16)

Simultaneous Data Transfers

Unique Crossbar Switch Technology User Selectable Priority Control

Adaptive Routing: Automatic Selection of Alternate Path when First Not Available

Broadcast to Multiple Slaves with a Single Data Transfer

Allows Integration w/Other Vendor’s Boards

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RACEway Crossbar SwitchRACEway Crossbar Switch

F E

C

D

B

A

RACEway Crossbar Switch Uses six independent 32-bit bi-directional ports for data routing

Can perform up to three simultaneous transfers of 160 MB/sec each

Each port controls arbitration, direction, priority, & handshaking

Each port can transmit data to any other port on the switch, or can broadcast to all five at aggregate rate of 800 MB/sec

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RACEway RACE Series Interlink ModulesRACEway RACE Series Interlink Modules

ILK1

ILK4

ILK8

ILK16

ILK12

RACEway RACE Series Interlink Modules

Mate with VME Backplane P2 Connector

Available in sizes bridging 4,8,12 or 16 VMEbus slots

Can be combined to bridge 20 slots

ILK1 adds 1-2 slots to configuration

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ILK ConnectionILK Connection

VME Rack - Rear View

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Available ILK ModulesAvailable ILK Modules

ILK4ILK4

Bridges four VMEbus slots Contains one crossbar switch Capable of two simultaneous transfers

F E

C

D

B

A

Slo

t 1

Slo

t 2

Slo

t 3

Slo

t 4

ILK8ILK8

Bridges eight slots Six crossbar switches Capable of four

simultaneous transfers

Slo

t 4

Slo

t 3

Slo

t 5

Slo

t 1

Slo

t 2

Slo

t 7

Slo

t 6

Slo

t 8

A D D D D

F FE E

BC

A A A

B BC

F

C

E

B

E

C

F

D

B

F E

B

A A

F

C

E

C

D

F E

C

D

B

A

Slo

t 1

Slo

t 2

Slo

t 3

Slo

t 4

F E

C

D

B

A

Slo

t 1

Slo

t 2

Slo

t 3

Slo

t 4

F E

C

D

B

A

Slo

t 1

Slo

t 2

Slo

t 3

Slo

t 4

Slo

t 4

Slo

t 3

Slo

t 5

Slo

t 1

Slo

t 2

Slo

t 7

Slo

t 6

Slo

t 8

A D D D D

F FE E

BC

A A A

B BC

F

C

E

B

E

C

F

D

B

F E

B

A A

F

C

E

C

D

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Available ILK ModulesAvailable ILK Modules

ILK12ILK12

Bridges twelve slots Six crossbar switches Capable of Six

simultaneous transfers

Slo

t 5

Slo

t 4

Slo

t 7

Slo

t 1

Slo

t 2

Slo

t 3

Slo

t 6

Slo

t 9

Slo

t 1

0

Slo

t 8

Slo

t 11

Slo

t 1

2

A D D D D

F FE E

B BC

A A A

B BC C C

F E F

B

F

C

A

E

B

E

C

A

F

D

E

D

Slo

t 5

Slo

t 4

Slo

t 7

Slo

t 1

Slo

t 2

Slo

t 3

Slo

t 6

Slo

t 9

Slo

t 10

Slo

t 8

Slo

t 11

Slo

t 12

Slo

t 15

Slo

t 16

Slo

t 13

Slo

t 14

F EF E

A

B C

D

F

A

E

A

B

F E

B

A

B C

D

B C

A D A D

CB

D

EF

C

EF

C

D

ILK16ILK16 Bridges 16 slots Six crossbar

switches 8 simultaneous

transfersS

lot

5

Slo

t 4

Slo

t 7

Slo

t 1

Slo

t 2

Slo

t 3

Slo

t 6

Slo

t 9

Slo

t 1

0

Slo

t 8

Slo

t 11

Slo

t 1

2

A D D D D

F FE E

B BC

A A A

B BC C C

F E F

B

F

C

A

E

B

E

C

A

F

D

E

D

Slo

t 5

Slo

t 4

Slo

t 7

Slo

t 1

Slo

t 2

Slo

t 3

Slo

t 6

Slo

t 9

Slo

t 1

0

Slo

t 8

Slo

t 11

Slo

t 1

2

Slo

t 1

5

Slo

t 1

6

Slo

t 1

3

Slo

t 1

4

F EF E

A

B C

D

F

A

E

A

B

F E

B

A

B C

D

B C

A D A D

CB

D

EF

C

EF

C

D

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Pentek RACEway ModelsPentek RACEway Models

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New RACEway Technology: RACE++New RACEway Technology: RACE++ Number of Crossbar Ports in each switch increased to eight Faster Data Transfer Rates: 267 MB/sec; 1GB/sec Aggregate Increased Broadcast Bandwidth: 1.8 GB/sec Adaptive Routing Capability Expanded: Now between crossbar switch ports as well as boards Increased System Processor Scalability: >4000 processors Backwards Compatible

Clock Speed settable to 66 MHz or 40 MHz5-Row or 3-Row Connector Available

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Sample ApplicationsSample Applications

FPDP

DSP

DSP

DSP

DSP

Model 4290Q uad C6x Board

6226-004

Model 6441-008A/D Converter

w /FPDP O utput

Model 6099A-008High Speed Mem ory

Board w/FPDP In/OutFP DPV IM-2

FP DPV IM-2

6226-004

OtherFPDP Models

RACEway

DSP

DSP

DSP

DSP

Model 4290Q uad C6x Board

6220

VIM-4RRACEw ay Fabric

Model 64652-Ch. A/DConverter

Model 6526RACEw ayReceiver

Model 64652-Ch. A/DConverter

Model 6526RACEw ayReceiver

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Summary of AdvantagesSummary of Advantages

Flexible Data Routing Between up to 16 Boards

Data Transfer Rate determined by Clock Speed

FPDP RACEway

Interface between Multiple VME Chassis

Relatively Simple and Inexpensive

Many FPDP Compatible Models Available

Cable-Free Simultaneous Data Transfers

Broadcast to Multiple Slave Destinations

Can Set Data Transfer Priority

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FPDP and RACEwayFPDP and RACEway

www.vita.com

FPDP: ANSI/VITA 17-1998RACEway: ANSI/VITA 5.1-1999