Texas Instruments 4Q 2006 manual PCI Bridges, Two 32-bit, 33- or 66-MHz buses, Capabilities

Page 33

PCI Bridges

33

 

 

 

 

 

➔

Design Considerations

Peripheral Component Interconnect (PCI) is an interconnection system between a micro- processor and attached devices in which expansion slots are spaced closely for high- speed operation. A PCI-to-PCI bridge is a high-performance connection path between two PCI buses that allows bridge transactions to occur concurrently on both buses. Burst- mode transfers maximize data throughput while the two bus traffic paths through the bridge act independently. In future systems, many PCI bus structures will be replaced by

PCI Bridges

PCI2040

the new serial PCI Express architecture. TI is actively developing a portfolio of PCI Express products to address this new market.

Key Features

•Two 32-bit, 33- or 66-MHz buses

•Configurable for PCI power-management interface specification

•CompactPCI hot-swap functionality

•3.3-V core logic with 3.3- to 5-V PCI signaling compatibility

•Intel® bridge compatibility

•Transparent bridging

CPU

Host Bus

Memory

Technical Information

Capabilities

•TI’s PCI2050B is a 32-bit, 66-MHz bridge with internal two-tier arbitration for up to 9 secondary bus masters and support for an external secondary bus. There are independent read/write buffers for each direction and 10 secondary PCI clock outputs.

Functionality

•The PCI2250 is a 33-MHz bridge similar to the PCI2050B but supports 4 secondary bus masters and 5 secondary PCI clock outputs.

PCI2050B

Host

PCI

PCI

Bridge

Device

Device

PCI2250

PCI2060

PCI bridge family of products.

PCI Bus 0

PCI2050B

PCI Bus 2

PCI Bus 1

PCI Option Card

PCI Option Card

PCI2050B

PCI

PCI

(Option)

Device

Device

 

 

PCI Option Slot

Typical PCI-to-PCI bridge system application.

Selection Guide

 

 

 

 

 

 

 

Intel-Compatible

Speed

Expansion

MicroStar BGA™

Voltage

 

 

Device

Part No.

(MHz)

Interface (bits) Hot-Swap

Packaging

(V)

Package(s)

Description

Price*

PCI Bridges

PCI2040

—

33

—

—

Yes

3.3, 5

144 BGA,

PCI-to-DSP bridge controller, compliant with

10.55

 

 

 

 

 

 

 

144 LQFP

Compact PCI Hot-Swap Specification

1.00

PCI2050B

21150bc

66

32

Yes

Yes

3.3, 5

208 LQFP,

32-bit, 66-MHz, 9-master PCI-to-PCI bridge

9.50

 

 

 

 

 

 

 

208 QFP, 257 BGA

 

 

PCI2250

21152ab

33

32

Friendly

No

3.3, 5

176 LQFP,

32-bit, 33-MHz PCI-to-PCI bridge, Compact

6.10

 

 

 

 

 

 

 

160 QFP

PCI hot-swap friendly, 4-master

 

PCI2060

—

66

32

Yes

Yes

3.3, 5

257 BGA

32-bit, 66-MHz, 9-master, asynchronous

9.50

 

 

 

 

 

 

 

 

PCI-to-PCI bridge

 

 

 

 

 

 

 

 

 

 

 

1Suggested resale price in U.S. dollars in quantities of 1,000.

Resources For a complete list of resources (evaluation modules, data sheets and application notes), visit interface.ti.com

Literature Number

Description

Application Notes

 

SCPA029A

Adding Debounce Logic to /HSSwitch Terminal

SLLA067

Comparing Bus Solutions

SCPA027

Connecting ENUM Terminal to an External Open-Drain Buffer

SCPA030

Interfacing the PCI2040 to the TMS320VC5420 DSP

SPRA679

Texas Instruments TMS320VC5409/5421 DSP to PCI Bus

Texas Instruments 4Q 2006

Interface Selection Guide

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Page 32 Page 34
Contents Interface Selection Guide Interface Selection Guide Table of ContentsClock Distribution Circuits p Interface Selection GuideDesign Considerations LVDS, xECL, CMLTechnical Information Lvds Family of ProductsTexas Instruments 4Q Pecl Selection GuideLvds Selection Guide Device Pin/Packages Price Single Family SupplyDual Family Quad FamilyMultipoint-LVDS M-LVDS Lvds FeaturesMultipoint Lvds Lvds Devices from TIPart-to HalfKey Features Mbps Jitter To ensure signal integrityDigital Isolators Digital Isolators Selection GuideRS-485/422 Family of Products RS-485/422No. Dr/Rx FeaturesNodes SoicRS-232 Flexible power-saving options enable longer battery lifeRS232 IEC6100-4-2 Level ESD-Protected Devices Space-saving QFN package options for portable applicationsDevice Drivers ReceiversPin/Packages Price Pin/Package Price RS-232 Selection GuideUARTs Universal Asynchronous Receiver/Transmitters Programmable sleep mode and low-power modeUart Family of Products 64-byte FIFOs available 3-, 2.5- and 1.8-V supplyUart Selection Guide UARTs Universal Asynchronous Receiver/TransmittersAsynchronous Communications Element with Autoflow Control PDAs MP3 players Gaming systems Modems Serial ports TelecomCan Transceiver Selection Guide Can 3.3-V and 5-V High-Speed can TransceiversSelection Guide Standard Compliant ProtocolsFlatLinkTM 3G Display SerDes for Mobile Phones Flatlink 3GFlatLink 3G Selection Guide 1755SerDes Serial Gigabit Transceivers and Lvds SerDes Solutions-Frontplane/BackplaneBuffer PhotoGigabit Ethernet/FibreChannel SerDes Serial Gigabit Transceivers Selection GuideGigabit Xaui Ethernet Lvds SerdesContent protection for video sent over DVI High Bandwidth Digital Content Protection Hdcp22 DVI/PanelBus Hdcp ElementsDesktop LCD monitors DLP and LCD projectors Digital TVs Digital visual interface DVI compliantSet-top boxes Jitter Intra-Pair ps Inter-Pair Clock P-P Data P-PMax ps 40QFNSpeed Universal Serial Bus USBTransfer Type USB-to-Serial BridgeUSB Hub Controllers and Peripheral Devices USB Family of ProductsPackage Port USB Hub Power Controllers USB Power Managers Family of ProductsUSB Power Managers Selection Guide Universal Serial Bus USB Power ManagersPCI Express DeviceClassifications PCI Express Key BenefitsTarget Markets ExpressCards PC Add-In Cards PC Motherboards Target MarketPainful and not robust TX BlockRX Block Two 32-bit, 33- or 66-MHz buses PCI BridgesCapabilities FunctionalityPower Distribution Devices Family of Products CardBus Power SwitchesEnable Predecessor Transition TimeIN1 to IN2 Physical-Layer Selection Issues 36 1394 FireWireLink-Layer Selection Issues OverviewReal-time streaming of audio and video 1394b AdvantagesFaster speeds from 800 Mbps to 3200 Mbps More efficient Boss arbitrationKey Features Applications FireWireConn. Conn. Conn. Conn. Conn. Conn Signal Integrity TI vs CompetitionGtlp Selection Guide Gtlp Gunning Transceiver Logic PlusDevice Description Price Other LiteratureHighlights VMEClock Distribution Circuits SN65HVD3082E SN65HVD3085ESN65HVD3088E Cross-Reference GuideSN65LVDT3486B Cross-Reference GuideSN65LVDT9637B PericomTexas Instruments Device IndexProduct Information Centers InternetImportant Notice
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