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Digital Semiconductor 21140A
10/100BASE–TX Evaluation Board
User's Guide
Order Number: EC–QN7QC–TE
Revision/Update Information:
Digital Equipment Corporation
Maynard, Massachusetts
This preliminary document supersedes the
Digital Semiconductor 21140A
10/100BASE–TX Evaluation Board
User's Guide (EC–QN7QB–TE).
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Table of Contents
Related Manuals for Digital Equipment Digital Semiconductor 21140A
Summary of Contents for Digital Equipment Digital Semiconductor 21140A
- Page 1 Digital Semiconductor 21140A 10/100BASE–TX Evaluation Board User’s Guide Order Number: EC–QN7QC–TE Revision/Update Information: This preliminary document supersedes the Digital Semiconductor 21140A 10/100BASE–TX Evaluation Board User’s Guide (EC–QN7QB–TE). Digital Equipment Corporation Maynard, Massachusetts...
- Page 2 While Digital believes the information included in this publication is correct as of the date of publication, it is subject to change without notice. Digital Equipment Corporation grants to the purchaser of Alpha microprocessor or peripheral sample designs a fully paid up, non-exclusive, irrevocable, perpetual and worldwide license to...
- Page 3 FCC Statement for Class A Equipment Warning! This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. This equipment generates, uses, and may emit radio frequency energy. The equipment has been type tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC rules, which are designed to provide reasonable protection against such radio frequency interference.
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Page 5: Table Of Contents
Contents Preface ........... . . 1 Introduction What is the EB140A–TX? . - Page 6 Figures 1–1 Main Components of the EB140A–TX ....1–3 1–2 EB140A–TX Block Diagram ......1–4 1–3 EB140A–TX LEDs and Connectors .
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Page 7: Preface
Preface This document describes the Digital Semiconductor 21140A 10/100BASE–TX Evaluation Board (also referred to as the EB140A–TX), which is a sample design and development board for systems based on the Digital Semiconductor 21140A PCI Fast Ethernet LAN Controller (21140A). The EB140A–TX supports 10BASE–T and 100BASE–TX Fast Ethernet, and complies with the electrical... -
Page 9: Introduction
Introduction This chapter describes the main components of the EB140A–TX. The chapter describes how to interpret the LEDs and connectors on the EB140A–TX, and it describes the bit mapping of the general-purpose port. 1.1 What is the EB140A–TX? The EB140A–TX is a 10BASE–T and 100BASE–TX PCI bus master adapter board that demonstrates the functionality of the 21140A. -
Page 10: Eb140A-Tx Features
1.2 EB140A–TX Features The EB140A–TX is a universal, PCI form-factor option card that has the following features: • Direct interface to PCI bus • Full PCI compliance (revisions 2.0 and 2.1) • PCI bus master operation • Direct 10BASE–T and 100BASE–TX network connection •... -
Page 11: Eb140A-Tx Description
1.3 EB140A–TX Description The EB140A–TX is based on the 21140A with direct connections to the PCI bus and the 10Mb/s Ethernet and 100Mb/s Fast Ethernet networks. The evaluation board is fully compliant with the PCI local bus specification, revisions 2.0 and 2.1, and is capable of PCI bus master operations working with programmable burst length. -
Page 12: Block Diagram
1.3.1 Block Diagram The EB140A–TX has the following main parts: • Digital Semiconductor 21140A for 10/100-Mb/s media access control (MAC) with MII, boot ROM, and serial ROM ports, and a PCI interface • National DP83840 and DP83223 MII-based PHY chipset for a 10/100-Mb/s physical interface •... -
Page 13: Leds And Connectors
1.4 LEDs and Connectors Figure 1–3 shows the LEDs and connectors for the EB140A–TX, and Table 1–1 describes the components. Figure 1–3 EB140A–TX LEDs and Connectors Link Status LED Transmit LED Receive LED RJ45 Network Connector LJ-04836.AI5 Preliminary—Subject to Change—July 1996 1–5... -
Page 14: Eb140A-Tx Led And Connector Descriptions
Table 1–1 EB140A–TX LED and Connector Descriptions Reference Component Description Link status LED Indicates the link status. The single green LED displays the following patterns: LED Status Meaning Green on Indicates that the PHY found a valid link on the network connection and is ready for normal operation. -
Page 15: General-Purpose Port
1.5 General-Purpose Port The 21140A has an 8-bit, general-purpose port for setting the various operating modes of the EB140A–TX. CSR12 in the 21140A controls the general-purpose port. Figure 1–4 shows the bit mapping of the general-purpose port, and Table 1–2 describes the bit operations. -
Page 16: General-Purpose Port Bit Descriptions
Table 1–2 General-Purpose Port Bit Descriptions 21140A Description Operating Mode Active Level Provides reset to the DP83840. Output High (1) Reserved. Output — Reserved. Output — Reserved. Output — Reserved. Output — DP83840 indication to the 21140A that a Input Low (0) packet is being transmitted. -
Page 17: Eb140A-Tx Dimensions
1.6 EB140A–TX Dimensions The physical dimensions of the EB140A–TX are as follows: Height: 8.6 cm (3.4 in) Width: 13.9 cm (5.5 in) Preliminary—Subject to Change—July 1996 1–9... -
Page 19: System Requirements, Kit Contents, And Installation
System Requirements, Kit Contents, and Installation This chapter describes the system requirements for using the EB140A–TX, lists the contents of the EB140A–TX kit, and describes how to install the evaluation board. 2.1 System Requirements To use the EB140A–TX, you need the following: •... -
Page 20: Kit Contents
2.2 Kit Contents The Digital Semiconductor 21140A 10/100BASE–TX Evaluation Board Kit contains the following materials. For additional drivers or software updates, contact your Digital sales representative or your local distributor. • A Digital Semiconductor 21140A 10/100BASE–TX Evaluation Board (EB140A–TX) •... -
Page 21: Using The Documentation
If you want to... Start with the... Install a driver README.TXT file on the driver diskette Design new hardware Digital Semiconductor 21140A PCI Fast Ethernet LAN Controller Data Sheet Digital Semiconductor 21140A PCI Fast Ethernet LAN Controller Hardware Reference Manual Obtain driver sources... -
Page 22: Installation Procedure
2.3 Installation Procedure To install the EB140A–TX and load the drivers, do the following: 1. From the diskette that contains the driver you are loading, read the README.TXT file. It provides information about how to configure the EB140A–TX. 2. Turn off the power to the PC. 3. -
Page 23: A Technical Support And Ordering Information
Outside North America http://www.digital.com/info/semiconductor World-Wide Web Internet site A.2 Ordering Digital Semiconductor Products To order the Digital Semiconductor 21140A PCI Fast Ethernet LAN Controller and evaluation board, contact your local distributor. You can order the following semiconductor products from Digital: Product... -
Page 24: Ordering Digital Semiconductor Literature
The following table lists some of the available Digital Semiconductor literature. For a complete list, contact the Digital Semiconductor Information Line. Title Order Number Digital Semiconductor 21140A PCI Fast Ethernet LAN EC–QN7MB–TE Controller Product Brief Digital Semiconductor 21140A PCI Fast Ethernet LAN EC–QN7PB–TE... - Page 25 Mail the information to: Digital Equipment Corporation Attn: Marketing/Product Updates 77 Reed Road, HLO2-2/M9 Hudson, MA 01749 To order additional drivers or software updates, contact your Digital sales representative or your local distributor. Preliminary—Subject to Change—July 1996 A–3...
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