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The IEEE 1394 high-speed serial bus complements USB by providing enhanced PC connectivity for a wide range of devices, including consumer audio/video (A/V) components, storage peripherals, other PCs, and portable devices.

IEEE 1394 has been adopted by the consumer-electronics industry and is expected to provide a volume, Plug and Play-compatible expansion interface for the PC. The 100-MB/sec, 200-MB/sec, and 400-MB/sec transfer rates currently specified in IEEE P1394.a and the proposed enhancements in IEEE P1394.b are well suited to multistreaming I/O requirements.

Microsoft provides built-in support for IEEE 1394 under Windows� 98 and Windows 2000, with driver support under the Windows Driver Model (WDM).

These are the design concerns for PCs running Windows 98 and Windows 2000:

bulletCompliance with IEEE 1394 standards, specifically IEEE 1394-1995 and IEEE P1394.a Support for the 1394 Open Host Controller Interface (OpenHCI) specification for controllers, specifically OHCI Revision 1.0
bulletPlug and Play support for device configuration, control and status registers (CSRs), connectors and cabling, and connection fault handling
bulletCable power distribution, including requirements for source devices, sink devices, self-powered devices, and supporting CSRs
bulletDevice power management, CSRs, and soft-power protocols
bulletDevice command protocols for audio, video imaging, still imaging, and storage device classes


bulletWindows 98 DDK
bulletWindows NT� 5.0 Beta 2 DDK
bulletThere is no support for IEEE 1394 under earlier versions of Microsoft operating systems.


1394 Trade Association: http://www.1394ta.org 
1394 Trade Association Power Specification Part 1: Cable Power Distribution
1394 Trade Association Power Specification, Part 3: Power State Management
IEEE 1394 Standards: E-mail: askieee@ieee.org
Or Global Engineering Documents: Fax: (303) 397-2740
ISO/IEC 13213:1994 Control and Status Registers (CSR) Architecture for Microcomputer Buses: http://www.iso.ch/cate/d21416.html 
Open Host Controller Interface Specification: ftp://ftp.austin.ibm.com/pub/chrptech/1394ohci/ 
Microsoft Plug and Play specification for IEEE 1394: http://www.microsoft.com/hwdev/respec/pnpspecs.htm