PCI Tutorial 1 31 00 vs 1.1

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PCI TutorialPCI Basics - Slide 1© 2000 Xilinx, Inc.All Rights ReservedPCI Fundamentals and ConceptsOverview of the PCI Specification The PCI Local Bus Specification covers many differentrequirements for PCI complianceMechanicalTimingMechanicalTimiPCISpecificationcElectrical Protocolctri ProtocolPCI Basics - Slide 5© 2000 Xilinx, Inc.All Rights ReservedBasic Bus ArchitectureAdd-in Cards56KKProcessorcessoModemdeSystememMPEGExpansionHost 3D Sound VideoundeoBusBridge Card CapturegerdptBridgeCardrdPCI Local Busls3DSCSI 100 Mbit 10GraphicsiController Ethernettroller Eth MotherboardCardrdLANPCI Basics - Slide 6© 2000 Xilinx, Inc.All Rights ReservedISASample Transaction – PIO56KKProcessorModemdemSystememTargetgMPEGExpansionHost Video 3D SoundunInitiatoriaBusBridge Capture CardgeurerdBridgeBridCardPCI Local Busls3DSCSI 100 Mbit 10GraphicsicsController Ethernettroller Eth MotherboardCardProgrammable I/O TypeInterfaceLANLANPCI Basics - Slide 7© 2000 Xilinx, Inc.All Rights ReservedISASample Transaction – DMA56KKProcessorDMAAModemdemSystememLarge BlockDataInitiatortoMPEGExpansionHost Video 3D SoundunBusTargetBridge Capture CardgeurerdBridgeBridCardPCI Local Busls3DSCSI 100 Mbit 10GraphicsicsController Ethernettroller Eth MotherboardCardUse PIO to set up DMA engineLANLAN Use DMA for image transferPCI Basics - Slide 8© 2000 Xilinx, Inc.All Rights ReservedISAKey Terms ...

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Langue

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PCI Basics - Slide 1

PCI Tutorial

CP IuFndamentals and Concepts

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Electrical

Protocoll

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Timing

Mechanicaall

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Processor System

Host Bridge

SCSI Controller

is cB

Expansion Bus Bridge

us Arc

PCI Local Bus

100 Mbit EthernetMotherboard

LAN

hitec

56K Modem

3D Sound Card

3D Graphics Card

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MPEG Video Capture Card

Cards

Initiator

Processor System

Host Bridge

SCSI Controller

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Expansion Bus Bridge

Trans

PCI Local Bus

100 Mbit EthernetMotherboard

LAN

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56K Modem

MPEG Video Capture Card

3D Graphics Card

n P

Target 3D Sound Card

Programmable I/O Type Interface

malp erTS

Expansion Bus Bridge

PCI Local Bus

Large Block Data

DMA

3D Sound Card

56K Modem Initiator MPEG Video Capture Card

Use PIO to set up DMA engine Use DMA for image transfer

LAN

100 Mbit EthernetMotherboard

SCSI Controller

Processor System

3D Graphics Card

Host Bridge

Target

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Key Terms

Initiator Or Master the bus and initiates the data transferOwns Every Initiator must also be a Target

Target Or Slave Target of the data transfer (read or write)

Agent Any initiator/target or target on the PCI bus

PCI Signals

RST# Asynchronous reset PCI device must tri-state all I/Os during reset

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Clock and Reset

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Transaction Control Initiator Signals

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FRAME# I/O Signals the start and end of a transaction

RIYD # /IOI“R-

Transaction Control Target Signals DEVSEL# I/O Device select Part of PCI’s distributed address decoding Each target is responsible for decoding the address with each transaction When a target recognizes its address, it asserts DE claim the corresponding transaction

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