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The PCI-SIG is distinct from the similarly named and adjacently-focused PCI Industrial Computer Manufacturers Group. It has produced the PCI, PCI-X and PCI Express specifications. As of 2024, the board of directors of the PCI-SIG has representatives from: AMD, ARM, Dell EMC, IBM, Intel, Synopsys, Keysight, NVIDIA, and Qualcomm. The chairman and ...
One of the major improvements the PCI Local Bus had over other I/O architectures was its configuration mechanism. In addition to the normal memory-mapped and I/O port spaces, each device function on the bus has a configuration space, which is 256 bytes long, addressable by knowing the eight-bit PCI bus, five-bit device, and three-bit function numbers for the device (commonly referred to as the ...
Peripheral Component Interconnect (PCI) [3] is a local computer bus for attaching hardware devices in a computer and is part of the PCI Local Bus standard. The PCI bus supports the functions found on a processor bus but in a standardized format that is independent of any given processor's native bus.
PCI Express Mini Card (also known as Mini PCI Express, Mini PCIe, Mini PCI-E, mPCIe, and PEM), based on PCI Express, is a replacement for the Mini PCI form factor. It is developed by the PCI-SIG . The host device supports both PCI Express and USB 2.0 connectivity, and each card may use either standard.
The PCI-X standard was developed jointly by IBM, HP, and Compaq and submitted for approval in 1998. It was an effort to codify proprietary server extensions to the PCI local bus to address several shortcomings in PCI, and increase performance of high bandwidth devices, such as Gigabit Ethernet, Fibre Channel, and Ultra3 SCSI cards, and allow processors to be interconnected in clusters.
The PCI-SIG has relevant work under the terms Single Root I/O Virtualization (SR-IOV) and Address Translation Services (ATS). These were formerly covered in distinct specifications, but as of PCI Express 5.0 have been moved to the PCI Express Base Specification. [12]
Mobile PCI Express Module (MXM) is an interconnect standard for GPUs (MXM Graphics Modules) in laptops using PCI Express created by MXM-SIG. The goal was to create a non-proprietary, industry standard socket, so one could easily upgrade the graphics processor in a laptop, without having to buy a whole new system or relying on proprietary vendor upgrades.
3.0 is the "base" or "core" specification. The AdvancedTCA definition alone defines a Fabric agnostic chassis backplane that can be used with any of the Fabrics defined in the following specifications: 3.1 Ethernet (and Fibre Channel) 3.2 InfiniBand; 3.3 StarFabric; 3.4 PCI Express (and PCI Express Advanced Switching) 3.5 RapidIO