PCI Express Basics & Background

PCI Express? Basics & Background

Richard Solomon Synopsys

Copyright ? 2014, PCI-SIG, All Rights Reserved

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Acknowledgements

Thanks are due to Ravi Budruk, Mindshare, Inc. for much of the material on PCI Express Basics

PCIe Technology Seminar

Copyright ? 2014, PCI-SIG, All Rights Reserved

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Agenda

PCI Express Background PCI Express Basics PCI Express Recent Developments

PCIe Technology Seminar

Copyright ? 2014, PCI-SIG, All Rights Reserved

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PCI Express Background

PCIe Technology Seminar

Copyright ? 2014, PCI-SIG, All Rights Reserved

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Revolutionary AND Evolutionary

PCITM (1992/1993)

Revolutionary

? Plug and Play jumperless configuration (BARs) ? Unprecedented bandwidth

? 32-bit / 33MHz ? 133MB/sec ? 64-bit / 66MHz ? 533MB/sec

? Designed from day 1 for bus-mastering adapters

Evolutionary

? System BIOS maps devices then operating systems boot and run without further knowledge of PCI

? PCI-aware O/S could gain improved functionality ? PCI 2.1 (1995) doubled bandwidth with 66MHz mode

PCIe Technology Seminar

Copyright ? 2014, PCI-SIG, All Rights Reserved

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