6700PXH データシートの表示（PDF） - Intel

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6700PXH

Intel® 6700PXH 64-bit PCI Hub

Intel 

Contents

1

Introduction....................................................................................................................... 15

1.1

Related Documents ...........................................................................................................15

1.2

Intel® 6700PXH 64-bit PCI Hub Overview.........................................................................15

1.2.1 PCI Express* Interface (Primary Bus) .................................................................15

1.2.2 PCI/PCI-X Bus Interfaces (Secondary Bus) ........................................................16

1.2.3 PCI Standard Hot Plug Controller........................................................................16

1.2.4 I/OxAPIC Controller .............................................................................................16

1.2.5 SMBus Interface ..................................................................................................16

1.2.6 JTAG ...................................................................................................................17

2

Signal Description ............................................................................................................19

2.1

PCI Express* Interface.......................................................................................................19

2.2

PCI/PCI-X Bus Interface ....................................................................................................20

2.3

PCI Bus Interface 64-bit Extension ....................................................................................22

2.4

Interrupt Interface...............................................................................................................22

2.5

Hot Plug Interface ..............................................................................................................23

2.6

SMBus Interface ................................................................................................................28

2.7

Miscellaneous Signals .......................................................................................................28

2.8

Power and Ground .............................................................................................................29

2.9

Pin Straps ..........................................................................................................................29

2.10 Signal Summary.................................................................................................................31

2.10.1 Signals, Interfaces and Power Planes .................................................................31

2.10.2 Power Planes ......................................................................................................34

2.10.3 Signals and Default States ..................................................................................35

2.11 PCI/PCI-X Interface ...........................................................................................................37

2.11.1 Initialization..........................................................................................................37

2.11.2 Transaction Types ...............................................................................................38

2.11.2.1 PCI Transactions...................................................................................38

2.11.2.2 PCI-X Transactions ...............................................................................39

2.11.3 Read Transactions ..............................................................................................39

2.11.3.1 Prefetchable ..........................................................................................39

2.11.3.2 Delayed .................................................................................................39

2.11.3.3 Internal CSR Space ..............................................................................39

2.11.4 Configuration Transactions..................................................................................40

2.11.5 Transaction Termination ......................................................................................40

2.11.5.1 PCI Mode Transaction Termination ......................................................40

2.11.5.2 PCI-X Mode Transaction Termination...................................................42

2.11.5.3 Intel® 6700PXH 64-bit PCI Hub Termination on

Device Boundary Crossing....................................................................44

2.11.6 PCI-X Protocol Specifics .....................................................................................44

2.11.6.1 Attributes ...............................................................................................44

2.11.6.2 4-Gbyte and 4-Kbyte Page Crossover ..................................................45

2.11.6.3 Wait States............................................................................................45

2.11.6.4 Split Transactions..................................................................................45

2.11.7 LOCK Cycles .......................................................................................................46

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