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Full Description

Scope

This standard describes a high-speed, low-cost Serial Bus suitable for use as a peripheral bus or a backup to parallel backplane buses. Highlights of the Serial Bus include a) Automatic assignment of node addresses¿¿¿no need for address switches. b) Variable speed data transmission based on ISDN-compatible1 bit rates from 24.576 Mbit/s for TTL backplanes to 49.152 Mbit/s for BTL backplanes to 98.304 Mbit/s, 196.608 Mbit/s, and 393.216 Mbit/s for the cable medium. c) The cable medium allows up to sixteen physical connections (cable hops), each up to 4.5 m, giving a total cable distance of 72 m between any two devices. Bus management recognizes smaller configurations to optimize performance. d) Bus transactions that include both block and single quadlet reads and writes, as well as an a??isochronousa?? mode that provides a low-overhead guaranteed bandwidth service. e) A physical layer supporting both cable media and backplane buses. f) A fair bus access mechanism that guarantees all nodes equal access. The backplane environment adds a priority mechanism, but one that ensures that nodes using the fair protocol are still guaranteed at least partial access. g) Consistent with ISO/IEC 13213 :1994 (IEEE Std 1212-1991).

Abstract

New IEEE Standard - Superseded. A high-speed serial bus that interates well with most IEEE standard 32-bit and 64-bit parallel buses, as well as such nonbus interconnects as the IEEE Std 1596-1992, Scalable Coherent Interface, is specified. It is intended to provide a low-cost interconnect between cards on the same backplane, cards on other backplanes, and external peripherals. This standard follows the IEEE Std 1212-1991 Command and Status Register (CSR) architecture.
 

Document History

  1. IEEE 1394-2008


    IEEE Standard for a High-Performance Serial Bus

    • Most Recent
  2. IEEE 1394-1995

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    IEEE Standard for a High Performance Serial Bus

    • Historical Version
 

Amendments, rulings, supplements, and errata

  1. IEEE 1394c-2006


    IEEE Standard for a High-Performance Serial Bus--Amendment 3

  2. IEEE 1394b-2002


    Standard for High Performance Serial Bus (High Speed Supplement)]

  3. IEEE 1394a-2000


    IEEE Standard for a High Performance Serial Bus (Amendment)