Digital Equipment Digital Semiconductor 21164 Alpha... Bedienungsanleitung

DigitalSemiconductor21164

AlphaMicroprocessorMotherboard

User’sManual

Order Number: EC–QLJLC–TE

Revision/Update Information: This document supersedes the

Alpha 21164 Microprocessor Motherboard

User’s Manual (EC–QLJLB–TE).

Digital Equipment Corporation

Maynard, Massachusetts

March 1996

Possession, use, or copying of the software described in this publication is authorized only

pursuant to a valid written license from Digital or an authorized sublicensor.

While Digital believes the information included in this publication is correct as of the date of

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manner described in this publication will not infringe on existing or future patent rights, nor do

the descriptions contained in this publication imply the granting of licenses to make, use, or sell

equipment or software in accordance with the description.

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All other trademarks and registered trademarks are the property of their respective owners.

This document was prepared using VAX DOCUMENT Version 2.1.

Contents

About This Manual........................................... vii

1 Introduction to the EB164

1.1 System Components and Features........................ 1–1

1.1.1 Digital Semiconductor 21171 Core Logic Chipset .......... 1–1

1.1.2 Memory Subsystem ................................ 1–3

1.1.3 L3 Bcache Subsystem Overview ....................... 1–3

1.1.4 PCI Interface Overview . . ........................... 1–3

1.1.5 ISA Interface Overview . . ........................... 1–4

1.1.6 Miscellaneous Logic ................................ 1–4

1.1.7 Software Support .................................. 1–5

1.1.8 Component Layout ................................. 1–5

1.2 EB164 Summary . . ................................... 1–6

2 System Conﬁguration and Connectors

2.1 Conﬁguration Jumpers................................. 2–1

2.2 EB164 Connectors . ................................... 2–8

3 Starting and Using the EB164

3.1 Hardware Requirements ............................... 3–1

3.2 Software Requirements ................................ 3–2

3.3 Hardware Conﬁguration ............................... 3–2

3.4 Software Conﬁguration ................................ 3–8

3.4.1 Starting Windows NT ARC Firmware .................. 3–9

3.4.2 Going to the Debug Monitor from Windows NT ARC

Firmware ........................................ 3–9

3.4.3 Returning to Windows NT ARC Firmware from the Debug

Monitor ......................................... 3–10

iii

4 Functional Description

4.1 PCI Interrupts and Arbitration . . ........................ 4–1

4.1.1 Interrupts ....................................... 4–1

4.1.2 Arbitration ....................................... 4–5

4.2 ISA Bus Devices...................................... 4–5

4.3 dc Power Distribution . ................................ 4–5

4.4 PCI Devices . ........................................ 4–7

4.5 Flash ROM. . ........................................ 4–8

4.5.1 Special ROM Header ............................... 4–8

4.5.2 Flash ROM Structure............................... 4–11

4.5.3 Flash ROM Access . ................................ 4–13

5 EB164 Requirements, Power, and Parameters

5.1 Power Requirements . . ................................ 5–1

5.2 Environmental Requirements . . . ........................ 5–2

5.3 Physical Board Parameters ............................. 5–2

A Supporting Vendor Products

A.1 Products Included .................................... A–1

A.2 Products Not Included . ................................ A–2

B Technical Support and Ordering Information

B.1 Obtaining Technical Support ............................ B–1

B.2 Ordering Digital Semiconductor Products . . ................ B–1

B.3 Ordering Digital Semiconductor Literature . ................ B–2

B.4 Ordering Third-Party Literature . ........................ B–3

Index

Figures

1–1 EB164 Functional Block Diagram ..................... 1–2

1–2 Board Component Layout . . . ........................ 1–6

2–1 EB164 Jumper Locations ............................ 2–2

2–2 Conﬁguration Jumpers.............................. 2–3

2–3 EB164 Connector Locations . . ........................ 2–8

2–4 Detail of Header Connector J2 ........................ 2–9

3–1 Fan/Heat Sink Assembly . ........................... 3–4

3–2 EB164 Power Connectors . ........................... 3–7

4–1 Interrupt Logic. ................................... 4–2

4–2 Interrupt and Interrupt Mask Registers ................ 4–5

4–3 dc Power Distribution . . . ........................... 4–6

4–4 Special Header Content . . ........................... 4–8

5–1 Board Component Layout ........................... 5–3

Tables

1–1 Main Memory Sizes ................................ 1–3

1–2 EB164 Features Summary ........................... 1–7

2–1 Conﬁguration Jumper Position Descriptions . . . .......... 2–4

2–2 EB164 Connector Descriptions ........................ 2–10

4–1 EB164 System Interrupts ........................... 4–3

4–2 PCI-to-ISA SIO Bridge Interrupts . . ................... 4–4

4–3 Special Header Entry Descriptions . ................... 4–9

4–4 Flash ROM Image Selection .......................... 4–11

5–1 Power Supply dc Current Requirements ................ 5–1

5–2 Board Component List . . . ........................... 5–4

About This Manual

This manual describes Digital Semiconductor’s 21164 Alpha microprocessor

motherboard (EB164), a module for computing systems based on the 21164

Alpha microprocessor and the Digital Semiconductor 21171 chipset.

Audience

This manual is intended for users of the EB164 to assist them in installing the

EB164 and populating it with memory modules and peripheral cards.

ScopeThis manual describes the features, conﬁguration, and installation of the

EB164. This manual does not include speciﬁc bus speciﬁcations (for example,

PCI or ISA buses). Additional information is available in the appropriate

vendor and IEEE speciﬁcations. See Appendix B for information about how to

obtain additional technical support and how to order additional documentation.

Content

This manual contains the following chapters and appendixes:

• Chapter 1, Introduction to the EB164, is an overview of the EB164,

including its components, uses, and features.

• Chapter 2, System Conﬁguration and Connectors, describes the user

environment conﬁguration; board connectors and functions; jumper

functions; and identiﬁes jumper and connector locations.

• Chapter 3, Starting and Using the EB164, lists additional hardware and

software requirements, provides information on how to conﬁgure the

hardware and software, and describes the motherboard startup procedures.

• Chapter 4, Functional Description, describes some of the functional

elements of the EB164, such as ﬂash ROM contents, interrupt assignments,

and power distribution.

vii

• Chapter 5, EB164 Requirements, Power, and Parameters, describes the

EB164 power and environmental requirements, and identiﬁes major board

components.

• Appendix A, Supporting Vendor Products, lists suggested vendor sources

for supporting components, such as, power supply, SIMMs, enclosure, and

so forth.

• Appendix B, Technical Support and Ordering Information, describes how to

obtain Digital Semiconductor information and technical support, and how

to order Digital Semiconductor products and associated literature.

Document Conventions

This section provides the conventions used in this document.

Caution: Cautions indicate potential damage to equipment or data.

Note: Notes provide additional information.

Numbering: All numbers are decimal or hexadecimal unless otherwise

indicated. In case of ambiguity, a subscript indicates the radix of nondecimal

numbers. For example, 19 is a decimal number, but 1916 and 19A are

hexadecimal numbers.

Extents: Extents are speciﬁed by a single number, or a pair of numbers in

angle brackets (< >) separated by a colon (:) and are inclusive. For example,

bits <7:3> specify an extent including bits 7, 6, 5, 4, and 3. Multiple bit ﬁelds

are shown as extents.

starting at the right (low-order) and increasing to the left (high-order).

Signal Names: Signal names in text are printed in boldface lowercase type.

For example, ‘‘ . . . bits data<127:0> are delivered to the Bcache SIMM

connectors . . . ’’

viii

Introduction to the EB164

This chapter provides an overview of the EB164 motherboard and describes

the EB164, its components, features, and uses.

1.1 System Components and Features

The EB164 is implemented in industry-standard parts and uses a Digital

Semiconductor 21164 Alpha microprocessor (21164) running at 266, 300, or 333

MHz. The functional components are shown in Figure 1–1 and are introduced

in the following subsections.

1.1.1 Digital Semiconductor 21171 Core Logic Chipset

The 21164 is supported by the Digital Semiconductor 21171 (21171) chipset.

The 21171 consists of the following two application-speciﬁc integrated circuit

(ASIC) types:

• One copy of the 21171-CA control, I/O interface, and address chip (CIA)

provides the interface between the 21164, main memory (addressing and

control), and the peripheral component interconnect (PCI) bus. It also

provides the data switch companion chips with control information to direct

the data ﬂow.

• Four copies of the 21171-BA data switch chip (DSW) provide the memory

interface data path and route PCI data through the CIA chip.

The chipset includes the majority of functions required to develop a high-

performance PC or workstation, requiring minimum discrete logic on the

module. It provides ﬂexible and generic functions to allow its use in a wide

range of systems.

Introduction to the EB164 1–1

1.1 System Components and Features

Figure 1–1 EB164 Functional Block Diagram

21164 Alpha

Microprocessor

Index

21171−BA

Data Switch

(X4)

21171−CA

Control, I/O Interface,

Digital Semiconductor

21171 Core Logic Chipset

PCI−to−ISA

Bridge

Control 64

Bcache

SIMM

Sockets (X2)

Support

− Oscillator

− Serial ROM

256

DRAM

SIMM

Sockets

Address/Control

(X8)

Data

Flash ROM

Time−of−Year

Keyboard/Mouse

3 Dedicated PCI Slots

2 Dedicated ISA Slots

1 Shared PCI/ISA Slot

Combination

Controller

2 IDE Devices

Diskette

Parallel Port

2 Serial Ports MK−2306−01A

Control

Data

Check

Address

Commands

Bcache Tag 10

128

and Address

Digital Semiconductor

1–2 Introduction to the EB164

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