RapidIO

RapidIO

The RapidIO architecture is a high-performance packet-switched, interconnect technology for interconnecting chips on a circuit board, and also circuit boards to each other using a backplane. This technology is designed specifically for embedded systems, primarily for the signal processing, networking, and communications markets.

The main competitors are HyperTransport, Infiniband, and PCI Express, but these are targeted at the desktop and high performance computing arenas, as opposed to embedded systems.

RapidIO was developed by Mercury Computer Systems and Motorola (now Freescale), primarily as an upgraded interconnect for Mercury's embedded NUMA/cluster ("multicomputer") signal processing computers.

Technology

There are two incarnations of RapidIO Technology: Parallel RapidIO and Serial RapidIO. The main difference between the two is that Parallel RapidIO has a separate clock signal, while Serial RapidIO uses 8B/10B encoding to transmit the clock along with the signal serially.

Packets are big-endian, 256 bytes, with 8-bit or 16-bit addresses, and routed by crossbar switches. Links are point-to-point, with handshaking and reservations to ensure that packets need not be dropped. Links are commonly half-duplex parallel Low voltage differential signaling or serial fiber optic. Special signaling allows timestamps to flood fill through the fabric without concern for packet boundaries. RapidIO is designed to support memory mapping, mailbox queues, and doorbell-style interrupts.

Rapid IO interfaces can be driven at different baud rates. The maximum speed achieved can be 6.25 Gbit/s per lane.

RapidIO Trade Association

Industry leaders in networking, communications, semiconductors, and embedded systems have founded the RapidIO Trade Association to develop and support this international open standard. Alcatel-Lucent, AMCC, EMC Corporation, Ericsson, Freescale, Texas Instruments, and Tundra Semiconductor comprise the Steering Committee of the RapidIO Trade Association.

Liaisons

The RapidIO Trade Association has numerous liaisons with other industry groups including the Optical Internetworking Forum, PICMG and the Mountain View Alliance.

ee also

*List of device bandwidths

External links

* [http://www.rapidio.org/ RapidIO: Home]
* [http://www.rapidio.org/specs/current RapidIO Specifications]


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • RapidIO — это высокопроизводительный интерфейс передачи данных для соединения микросхем в рамках одной печатной платы, а также для соединения между собой нескольких печатных плат. Данный интерфейс был разработан для применения во встраиваемых системах.… …   Википедия

  • PCI Express — PCI E PCI Express PCI Express logo Год открытия: 2002 (1.0) 15 января 2007 (2.0) ноябрь 2010 (Спецификации версии 3.0) Разработчик: Intel, PCI Special Interest Group Что эта шина заменила: AGP, PCI X, PCI …   Википедия

  • PCI Express — Not to be confused with PCI X. PCI Express Year created 2004 Created by Intel · Dell · IBM · …   Wikipedia

  • PICMG — The PCI Industrial Computer Manufacturers Group (PICMG) is a consortium of over 227 companies[1]. The group, founded in 1994, was originally formed to adapt PCI technology for use in high performance telecommunications, military and industrial… …   Wikipedia

  • Mercury Computer Systems — Mercury Computer Systems, Inc. NASDAQ: MRCY provides high performance embedded, real time digital signal and image processing solutions. Mercury designs and builds embedded multicomputers, which may be considered to be either loosely coupled …   Wikipedia

  • PowerQUICC — is the name for several Power Architecture based microcontrollers from Freescale Semiconductor. They are built around one or more PowerPC cores and the QUICC Engine which is a separate RISC core specialized in such tasks such as I/O,… …   Wikipedia

  • PICMG — Die PCI Industrial Computer Manufacturers Group, kurz PICMG, ist ein Konsortium aus über 220 Unternehmen, die patentfreie Spezifikationen für leistungsstarke Telekommunikations und Industrieanwendungen gemeinsam erarbeiten. Die Mitglieder des… …   Deutsch Wikipedia

  • VITA (Organisation) — Die VITA (kurz für: VME bus International Trade Association) ist eine gemeinnützige Organisation von Anbietern und Benutzern mit gemeinsamem Marktinteresse an modularen, eingebetteten Echtzeitsystemen. Bekannt wurde die VITA durch die… …   Deutsch Wikipedia

  • PowerQUICC — est un nom générique pour plusieurs microcontrôleurs de la société Freescale dans le cadre de l architecture Power. Ils sont conçus autour d un ou plusieurs processeurs cores PowerPC et du QUICC Engine, un processeur RISC spécialisé dans les… …   Wikipédia en Français

  • Список пропускных способностей интерфейсов передачи данных — В данном списке приведены пропускные способности различных интерфейсов передачи данных, применяемых в компьютерной технике. Для обозначения пропускной способности интерфейса иногда могут использоваться термины ёмкость канала или… …   Википедия

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”