PCI-SIG Delivers PCI Express 2.0 Specification.PCIe Base 2.0 Specification Doubles the Transfer Rate to 5GT/s and Introduces Enhanced Features and Protocol Improvements BEAVERTON, Ore. -- PCI-SIG[R], the Special Interest Group responsible for PCI Express A high-speed peripheral interconnect from Intel introduced in 2002. Note that although sometimes abbreviated "PCX," PCI Express is not the same as "PCI-X" (see PCI-SIG and PCI-X for comparison). As a result of the confusion, "PCI-E" or "PCIe" is the accepted abbreviation. [R] industry-standard I/O (Input/Output) The transfer of data between the CPU and a peripheral device. Every transfer is an output from one device and an input to another. See PC input/output. I/O - Input/Output technology, today announced the availability of the PCI Express Base 2.0 specification. After a 60-day review of revision 0.9 of the specification in Fall 2006, members of the PCI-SIG finalized and released PCI Express (PCIe) 2.0, which doubles the interconnect bit rate from 2.5GT/s to 5GT/s to support high-bandwidth applications. The specification seamlessly extends the data rate to 5GT/s in a manner compatible with all existing PCIe 1.1 products currently supporting 2.5GT/s signaling. The key benefit of PCIe 2.0 is its faster signaling, effectively increasing the aggregate bandwidth of a 16-lane link to approximately 16 GB/s. The higher bandwidth will allow product designers to implement narrower interconnect links to achieve high performance while reducing cost. "In today's world, applications are becoming more advanced and are requiring more bandwidth," said Al Yanes, PCI-SIG chairman and president. "This is the perfect time to release PCIe 2.0, which not only supports high-bandwidth applications such as high-end graphics, but also adds many new architectural enhancements." In addition to the faster signaling rate, PCI-SIG working groups also added several new protocol layer improvements to the PCIe Base 2.0 specification which will allow developers to design more intelligent devices to optimize platform performance and power consumption while maintaining interoperability, low cost and fast market introduction. These architecture improvements include: * Dynamic link speed management allows developers to control the speed at which the link is operating * Link bandwidth notification alerts platform software (operating system operating system (OS) Software that controls the operation of a computer, directs the input and output of data, keeps track of files, and controls the processing of computer programs. , device drivers, etc) of changes in link speed and width * Capability structure expansion increases control registers to better manage devices, slots and the interconnect * Access control services allows for optional controls to manage peer-to-peer transactions * Completion timeout control allows developers to define a required disable mechanism for transaction timeouts * Function-level reset provides an optional mechanism to reset functions within a multi-function device * Power limit redefinition enables slot power limit values to accommodate devices that consume higher power Higher power is a term used in a 12-step program, such as Alcoholics Anonymous, to describe "a power greater than yourself." Although many participants equate their higher power with God, a belief in God or in formal religion is not mandatory; the higher power is intended as a The PCIe Base 2.0 specification is available for download at http://www.pcisig.com/specifications/pciexpress/base2/. About PCI-SIG PCI-SIG is the Special Interest Group that owns and manages PCI (1) (Payment Card Industry) See PCI DSS. (2) (Peripheral Component Interconnect) The most widely used I/O bus (peripheral bus). specifications as open industry standards. The organization defines and implements new industry standard I/O standard I/O - standard input/output (Input/Output) specifications as the industry's local I/O needs evolve. The PCI Special Interest Group was formed in 1992, and the organization became a nonprofit corporation nonprofit corporation n. an organization incorporated under state laws and approved by both the state's Secretary of State and its taxing authority as operating for educational, charitable, social, religious, civic or humanitarian purposes. , officially named "PCI-SIG" in the year 2000. Currently, more than 850 industry-leading companies worldwide are active PCI-SIG members. PCI-SIG's current directors are employed by the following PCI-SIG member companies: AMD (Advanced Micro Devices, Inc., Sunnyvale, CA, www.amd.com) A major manufacturer of semiconductor devices including x86-compatible CPUs, embedded processors, flash memories, programmable logic devices and networking chips. , Broadcom, HP, IBM (International Business Machines Corporation, Armonk, NY, www.ibm.com) The world's largest computer company. IBM's product lines include the S/390 mainframes (zSeries), AS/400 midrange business systems (iSeries), RS/6000 workstations and servers (pSeries), Intel-based servers (xSeries) , Intel, LSI LSI: see integrated circuit. (Large Scale Integration) Between 3,000 and 100,000 transistors on a chip. See SSI, MSI, VLSI and ULSI. Logic, Microsoft and nVIDIA. For more information about PCI-SIG, and PCI-SIG membership benefits, contact PCI-SIG by phone at 503-619-0569, or by fax at 503-644-6708, or visit the PCI-SIG web site at: www.pcisig.com. All trademarks mentioned are the property of their respective owners. |
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