For additional information about the FireWire IEEE 1394 interface and the Apple APIs for FireWire software, refer to the resources available on the Apple FireWire web site at:
http://www.apple.com/firewire/
The IEEE 1394 standard is available from the IEEE. Ordering information can be found on the World Wide Web at
http://standards.ieee.org/catalog/bus.html
You may also find useful information at the 1394 Trade Association's web site: