HP E8491A IEEE 1394 Fundamentals and, Interface Overview, IEEE 1394 Topology and Terminology

The HP I_O Libraries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

IEEE 1394 Data Transfer Protocol . . . . . . . . . . . . . . . . . . . . 59

Chapter 4

IEEE 1394 Fundamentals and

Interface Overview

Using this Chapter

IEEE 1394 Topology and Terminology

This chapter contains reference information on the IEEE 1394 Serial Bus, the data transfer protocol, and on the related hardware. The contents of the chapter include:

• IEEE 1394 Topology and Terminology . . . . . . . . . . . . . . . . 57

•

•The Adaptec® AHA-8940 Host Adapter and Interface Cable61

• The HP E8491A PC to VXI Interconnect . . . . . . . . . . . . . . . 62

•

Optimizing the IEEE 1394 bus must include an understanding of the topology and terms associated with its use. Figure 4-1 shows a VXI system consisting of a PC and three VXI mainframes - interconnected with the IEEE 1394 bus.

PC w/ IEEE 1394-to-PCI	VXI mainframe 1	VXI mainframe 3
host adapter
	hop
root	parent	child
node

branch	hop	leaf
node		node
hop	VXI mainframe 2

HP E8491A IEEE 1394 to VXI interconnect

child

leaf node

Figure 4-1. IEEE 1394 Topology and Terms.

Chapter 4 IEEE 1394 Fundamentals and Interface Overview 57