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1-2 21152 PCI-to-PCI Bridge Evaluation Board
User’s Guide
Introduction
• Supports four secondary 5 V PCI bus option card slots.
• May be built with 3.3-V secondary PCI card slots. If you are interested in this option, call the
Intel Information Line (see, Support, Products, and Documentation).
• Supports an optional external secondary bus arbiter.
• Supports multiple levels of PCI bus hierarchy
1.3 Major Components
Figure 1-1 shows the major components on the EB152.
Figure 1-1. EB152 Major Components
21152
W1
W4
J1
J7
W5
W7
J2
J4
J5
J3
J13
J6
J12
J10
J11
J9
J8
W1, W4, J7
_
Secondary Bus
External/Internal Arbitration
Configurable Jumpers
LJ-05028.AI4
Primary Bus
Connector
(to Host System
Motherboard)
E4
E3
Viewed from Side 1
PCI Option Card Slot
(PCI Device 5)
PCI Option Card Slot
(PCI Device 4)
PCI Option Card Slot
(PCI Device 6)
PCI Option Card Slot
(PCI Device 7)
E2
_
Optional
High-Current 3.3-V
Voltage Regulator
for Boards with 3.3-V
Secondary Connectors
J8
_
J12, J2, and
J1
_
Signal
Monitoring Pods
E3
_
Socket for
Optional PAL to
Control Secondary
Bus External
Arbitration