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31154 133 MHz PCI Bridge Design Guide Design Guide
About This Document
§ §
Aggressor
An aggressor network is a network that transmits a coupled signal to another network.
Victim
A network that receives a coupled cross-talk signal from another network is a called the victim
network.
Network
A network is the trace of a PCB that completes an electrical connection between two or more
components.
Stub A stub is a branch from a trunk terminating at the pad of an agent.
ISI
Inter-Symbol Interference (ISI) occurs when a transition that has not been completely
dissipated interferes with a signal being transmitted down a transmission line. ISI can impact
both timing and signal integrity. It is dependent on frequency, time delay of the line, and the
refection coefficient at the driver and receiver. Examples of ISI patterns that can be used in
testing at the maximum allowable frequencies are the sequences shown below:
0101 0101 0101 0101
0011 0011 0011 0011
000 1110 0011 1000 1111
Device
A device is a component of a PCI system that connects to a PCI bus. As defined by PCI 2.3,
a device can be a single-function or a multi-function device.
Downstream A transaction that targets the secondary side of the bridge is a downstream transaction.
Upstream A transaction that targets the primary side of the bridge is an upstream transaction.
SHB
SHB is a system host board in a PICMIG 1.2 backplane. The removable CPU board provides
clocks and arbitration signals as well as an optional ATX power supply control.
ePCI-X Embedded PCI-X specification
CRB Customer Reference Board
Table 1. Terminology and Definition (Sheet 2 of 2)
Term Definition
B3337-01
Aggressor Network
Zo Zo
Victim Network
Zo Zo