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PCI Express Basics & Background

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Copyright 2014, PCI-SIG, All Rights Reserved1PCI Express Basics & BackgroundRichard SolomonSynopsysPCIeTechnology Seminar2AcknowledgementsThanks are due to Ravi Budruk, Mindshare, Inc. for much of the material on PCI Express Basics2Copyright 2014, PCI-SIG, All Rights ReservedPCIeTechnology SeminarAgenda PCI Express Background PCI Express Basics PCI Express Recent DevelopmentsCopyright 2014, PCI-SIG, All Rights Reserved3PCIeTechnology Seminar4PCI Express BackgroundCopyright 2014, PCI-SIG, All Rights ReservedPCIeTechnology SeminarCopyright 2014, PCI-SIG, All Rights Reserved5Revolutionary AND Evolutionary PCI (1992/1993) Revolutionary Plug and Play jumperlessconfiguration (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 (1995)

–“Relaxed” electricals due to serial bus architecture • Point-to-point, low voltage, dual simplex with embedded clocking Evolutionary –PCI compatible at software level • Configuration space, Power Management, etc. • Of course, PCIe-aware O/S can get more functionality –Transaction layer familiar to PCI/PCI-X designers

  Express, Architecture, Basics, Background, Bus architectures, Pci express basics amp background

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