Intel 21152 manual Introduction, 1. EB152 Major Components, Viewed from Side

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

1.3Major Components

Figure 1-1shows the major components on the EB152.

Figure 1-1. EB152 Major Components

Viewed from Side 1

J 6

J 3

J 1 3

J 5

PCI Option Card Slot (PCI Device 7)

PCI Option Card Slot (PCI Device 6)

PCI Option Card Slot (PCI Device 5)

J 8 _ J 1 2 , J 2 , and

J 1 _ SignalJ 4 Monitoring Pods

J 9	J 1 1
J 8	J 1 0
E 3 _ Socket for
Optional PAL to	E3
Control Secondary
Bus External	W 4
Arbitration

J 2

J 1 2

W 7

J 7 W 5

J 1

E4

PCI Option Card Slot (PCI Device 4)

W 1

2 1 1 5 2

W 1 , W 4 , J 7 _ Secondary Bus

External/Internal Arbitration

Configurable Jumpers

E 2 _ Optional High - Current 3 . 3 - V Voltage Regulator for Boards with 3 . 3 - V Secondary Connectors

Primary Bus

Connector

(to Host System

Motherboard)

L J - 0 5 0 2 8 . A I 4

1-2 21152 PCI-to-PCI Bridge Evaluation Board User’s Guide