MICROCHIP EVB-LAN8870-RGMII Evaluation Board User Guide
- September 15, 2024
- MICROCHIP
Table of Contents
- EVB-LAN8870-RGMII Evaluation Board
- Specifications
- Product Information
- Product Usage Instructions
- Chapter 1: Overview
- Chapter 2: Getting Started
- 2.1 Introduction
- 2.2 Default Jumper Settings
- 2.3 Power Source
- 2.4 Clock
- 2.5 Reset Circuit
- FAQ
- Q: Can I use the evaluation board for production purposes?
- Q: How do I update the firmware on the evaluation board?
- define START autoexec.bat c:mcc18h _asm, _endasm, static -Opa+, -Opa0, 1
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
EVB-LAN8870-RGMII Evaluation Board
Specifications
Product Name: EVB-LAN8870-RGMII Evaluation Board
Manufacturer: Microchip Technology Inc.
Model Number: DS50003747A
ISBN: 978-1-6683-0200-2
Product Information
The EVB-LAN8870-RGMII Evaluation Board is designed to evaluate
and test the LAN8870-RGMII Ethernet PHY transceiver. It provides a
platform for users to assess the functionality and performance of
the LAN8870-RGMII chip.
Product Usage Instructions
Chapter 1: Overview
1.1 Introduction
The introduction section provides a brief overview of the
evaluation board and its purpose.
1.2 Block Diagram
The block diagram illustrates the internal components and
connections of the evaluation board.
1.3 References
The references section may include additional resources or
documents related to the evaluation board.
Chapter 2: Getting Started
2.1 Introduction
This section guides users on how to get started with the
evaluation board.
2.2 Default Jumper Settings
Explains the default jumper configurations on the board.
2.3 Power Source
Details the options for powering the evaluation board, including
EDS-powered and external-powered operations.
-
EDS-Powered Operation: Describes how to power
the board using EDS. -
External-Powered Operation: Explains how to
use an external power source.
2.4 Clock
Information on the clock setup for the evaluation board.
2.5 Reset Circuit
Instructions on the reset circuit functionality and usage.
FAQ
Q: Can I use the evaluation board for production purposes?
A: The evaluation board is intended for testing and evaluation
purposes only and should not be used in production
environments.
Q: How do I update the firmware on the evaluation board?
A: Firmware updates, if available, can be downloaded from the
manufacturer’s website and flashed onto the evaluation board
following the provided instructions.
EVB-LAN8870-RGMII Evaluation Board User’s Guide
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A
Note the following details of the code protection feature on Microchip
products: · Microchip products meet the specifications contained in their
particular Microchip Data Sheet.
· Microchip believes that its family of products is secure when used in the
intended manner, within operating specifications, and under normal conditions.
· Microchip values and aggressively protects its intellectual property rights.
Attempts to breach the code protection features of Microchip product is
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security of its code. Code protection does not mean that we are guaranteeing
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This publication and the information herein may be used only with Microchip
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terms. Information regarding device applications is provided only for your
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services.
THIS INFORMATION IS PROVIDED BY MICROCHIP “AS IS”. MICROCHIP MAKES NO
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OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION INCLUDING BUT NOT
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Trademarks
The Microchip name and logo, the Microchip logo, Adaptec, AVR, AVR logo, AVR
Freaks, BesTime, BitCloud, CryptoMemory, CryptoRF, dsPIC, flexPWR, HELDO,
IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck, LinkMD, maXStylus, maXTouch,
MediaLB, megaAVR, Microsemi, Microsemi logo, MOST, MOST logo, MPLAB,
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registered trademarks of Microchip Technology Incorporated in the U.S.A. and
other countries.
AgileSwitch, ClockWorks, The Embedded Control Solutions Company, EtherSynch,
Flashtec, Hyper Speed Control, HyperLight Load, Libero, motorBench, mTouch,
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Wire, SmartFusion, SyncWorld, TimeCesium, TimeHub, TimePictra, TimeProvider,
and ZL are registered trademarks of Microchip Technology Incorporated in the
U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor,
AnyIn, AnyOut, Augmented Switching, BlueSky, BodyCom, Clockstudio, CodeGuard,
CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController,
dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, Espresso T1S,
EtherGREEN, EyeOpen, GridTime, IdealBridge, IGaT, In-Circuit Serial
Programming, ICSP, INICnet, Intelligent Paralleling, IntelliMOS, Inter-Chip
Connectivity, JitterBlocker, Knob-on-Display, MarginLink, maxCrypto, maxView,
memBrain, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, mSiC,
MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit,
PICtail, Power MOS IV, Power MOS 7, PowerSmart, PureSilicon, QMatrix, REAL
ICE, Ripple Blocker, RTAX, RTG4, SAM-ICE, Serial Quad I/O, simpleMAP,
SimpliPHY, SmartBuffer, SmartHLS, SMART-I.S., storClad, SQI, SuperSwitcher,
SuperSwitcher II, Switchtec, SynchroPHY, Total Endurance, Trusted Time,
TSHARC, Turing, USBCheck, VariSense, VectorBlox, VeriPHY, ViewSpan, WiperLock,
XpressConnect, and ZENA are trademarks of Microchip Technology Incorporated in
the U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.
The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom
are registered trademarks of Microchip Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co.
KG, a subsidiary of Microchip Technology Inc., in other countries.
All other trademarks mentioned herein are property of their respective
companies. © 2024, Microchip Technology Incorporated and its subsidiaries.
All Rights Reserved.
ISBN: 978-1-6683-0200-2
For information regarding Microchip’s Quality Management Systems, please visit www.microchip.com/quality.
DS50003747A-page 2
2024 Microchip Technology Inc. and its subsidiaries
EVB-LAN8870-RGMII EVALUATION BOARD
USER’S GUIDE
Table of Contents
Preface …………………………………………………………………………………………………………… 5 Chapter 1. Overview
1.1 Introduction ……………………………………………………………………………………….. 9 1.2 Block Diagram
…………………………………………………………………………………… 9 1.3 References
……………………………………………………………………………………… 10
Chapter 2. Getting Started
2.1 Introduction ……………………………………………………………………………………… 11 2.2 Default Jumper
Settings ……………………………………………………………………. 11 2.3 Power Source
………………………………………………………………………………….. 11
2.3.1 EDS-Powered Operation ………………………………………………………………… 11 2.3.2 External-
Powered Operation …………………………………………………………… 11
2.4 Clock ……………………………………………………………………………………………… 12 2.5 Reset Circuit
……………………………………………………………………………………. 12
2.5.1 Power-On Reset–EDS Reset …………………………………………………………. 12 2.5.2 Manual Reset
……………………………………………………………………………….. 12
2.6 Using the EVB-LAN8870-RGMII ………………………………………………………… 12
2.6.1 With EVB-LAN7431-EDS ……………………………………………………………….. 12 2.6.2 With EVB-
LAN7801-EDS ……………………………………………………………….. 12
Chapter 3. Hardware Configuration
3.1 Hardware Configuration Options ………………………………………………………… 15 3.2 PHY Port
………………………………………………………………………………………… 15 3.3 Test Points
……………………………………………………………………………………… 15 3.4 Connectors
……………………………………………………………………………………… 16
Appendix A. Schematics
A.1 Introduction …………………………………………………………………………………….. 19
Appendix B. Bill of Materials
B.1 Introduction …………………………………………………………………………………….. 23
Worldwide Sales and Service ………………………………………………………………………… 26
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A-page 3
EVB-LAN8870-RGMII Evaluation Board User’s Guide
NOTES: .
DS50003747A-page 4
2024 Microchip Technology Inc. and its subsidiaries
Preface
EVB-LAN8870-RGMII EVALUATION BOARD
USER’S GUIDE
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip
tools and documentation are constantly evolving to meet customer needs, so
some actual dialogs and/or tool descriptions may differ from those in this
document. Please refer to our web site (www.microchip.com) to obtain the
latest documentation available.
Documents are identified with a “DS” number. This number is located on the
bottom of each page, in front of the page number. The numbering convention for
the DS number is “DSXXXXXA”, where “XXXXX” is the document number and “A” is
the revision level of the document.
For the most up-to-date information on development tools, see the MPLAB® IDE
online help. Select the Help menu, and then Topics to open a list of available
online help files.
INTRODUCTION
This chapter contains general information that will be useful to know before
using the EVB-LAN8870-RGMII Evaluation Board User’s Guide. Items discussed in
this chapter include: · Document Layout · Conventions Used in this Guide ·
Warranty Registration · The Microchip Web Site · Development Systems Customer
Change Notification Service · Customer Support · Document Revision History
DOCUMENT LAYOUT
This document describes how to use the EVB-LAN8870-RGMII Evaluation Board as a
development tool for the LAN8870, 1000BASE-T1 Ethernet Transceiver. The manual
layout is as follows: · Chapter 1. “Overview” This chapter shows a brief
description of the
EVB-LAN8870-RGMII. · Chapter 2. “Getting Started” This chapter provides
information about setup
and operation of the EVB-LAN8870-RGMII. · Chapter 3. “Hardware Configuration”
– This chapter discusses the hardware
Configuration information of the EVB-LAN8770-RMII Evaluation Board · Appendix
A. “Schematics” This appendix shows the EVB-LAN8870-RGMII
schematics. · Appendix B. “Bill of Materials” This appendix includes the
EVB-LAN8870-RGMII Bill of Materials.
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A-page 5
EVB-LAN8870-RGMII Evaluation Board User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Represents
Examples
Arial font: Italic characters Initial caps
Quotes Underlined, italic text with right angle bracket Bold characters
N`Rnnnn
Text in angle brackets < > Courier New font: Plain Courier New
Italic Courier New Square brackets [ ] Curly brackets and pipe character: { |
} Ellipses…
Referenced books Emphasized text A window A dialog A menu selection A field name in a window or dialog A menu path
MPLAB® IDE User’s Guide …is the only compiler… the Output window the Settings
dialog select Enable Programmer “Save project before build”
File>Save
A dialog button
Click OK
A tab
Click the Power tab
A number in verilog format, where N is the total number of digits, R is the radix and n is a digit.
4b0010, 2hF1
A key on the keyboard
Press
Sample source code Filenames File paths Keywords Command-line options Bit
values Constants A variable argument
Optional arguments
Choice of mutually exclusive arguments; an OR selection Replaces repeated text
Represents code supplied by user
define START autoexec.bat c:mcc18h _asm, _endasm, static -Opa+, -Opa0, 1
0xFF, `A’ file.o, where file can be any valid filename mcc18 [options] file
[options] errorlevel {0|1}
var_name [, var_name…] void main (void) { … }
DS50003747A-page 6
2024 Microchip Technology Inc. and its subsidiaries
Preface
WARRANTY REGISTRATION
Please complete the enclosed Warranty Registration Card and mail it promptly.
Sending the Warranty Registration Card entitles users to receive new product
updates. Interim software releases are available at the Microchip web site.
THE MICROCHIP WEB SITE
Microchip provides online support via our web site at www.microchip.com. This
web site is used as a means to make files and information easily available to
customers. Accessible by using your favorite Internet browser, the web site
contains the following information:
· Product Support Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software
· General Technical Support Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, Microchip consultant program
member listing
· Business of Microchip Product selector and ordering guides, latest
Microchip press releases, listing of seminars and events, listings of
Microchip sales offices, distributors and factory representatives
DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE
Microchip’s customer notification service helps keep customers current on
Microchip products. Subscribers will receive e-mail notification whenever
there are changes, updates, revisions or errata related to a specified product
family or development tool of
interest.
To register, access the Microchip web site at www.microchip.com, click on
Customer Change Notification and follow the registration instructions.
The Development Systems product group categories are:
· Compilers The latest information on Microchip C compilers, assemblers,
linkers and other language tools. These include all MPLAB C compilers; all
MPLAB assemblers (including MPASM assembler); all MPLAB linkers (including
MPLINK object linker); and all MPLAB librarians (including MPLIB object
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SIM simulator, as well as general editing and debugging features.
· Programmers The latest information on Microchip programmers. These include
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nonproduction development programmers such as PICSTART Plus and PIC-kit 2 and
3.
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A-page 7
EVB-LAN8870-RGMII Evaluation Board User’s Guide
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels: ·
Distributor or Representative · Local Sales Office · Field Application
Engineer (FAE) · Technical Support Customers should contact their distributor,
representative or field application engineer (FAE) for support. Local sales
offices are also available to help customers. A listing of sales offices and
locations is included in the back of this document. Technical support is
available through the web site at: http://www.microchip.com/support
DOCUMENT REVISION HISTORY
Revisions
DS50003747A (09-04-24)
Section/Figure/Entry Initial release
Correction
DS50003747A-page 8
2024 Microchip Technology Inc. and its subsidiaries
EVB-LAN8870-RGMII EVALUATION BOARD
USER’S GUIDE
Chapter 1. Overview
1.1 INTRODUCTION
The EVB-LAN8870-RGMII Evaluation Board is a plug-in card that interfaces
directly with a mating Microchip host processor controller board, such as the
SAMA5D3 Ethernet Development System (EDS) board. It features the LAN8870, a
highly integrated networking device that incorporates a 100BASE-T1/1000BASE-T1
physical layer transceiver (PHY). The board’s PHY port is connected to an
automotive Single-Pair Ethernet (SPE) connector, and the PHY’s RGMII
connections are brought out to a high-speed multi-pin (HS) connector.
Together, the EVB-LAN8870-RGMII Evaluation Board and either the EVB-
LAN7801-EDS or the EVB-LAN7431-EDS provide a highly-flexible platform for
evaluation of basic PHY features via static Control-Status Registers (CSR).
The scope of this document is meant to describe the EVB-LAN8870-RGMII
Evaluation Board setup and its user interface features. A simplified block
diagram of the board is shown in Figure 1-1.
1.2 BLOCK DIAGRAM
FIGURE 1-1:
BLOCK DIAGRAM
Hi-Speed 100-Pin RGMII Connector
100BASE-T1/
MDI
1000BASE-T1 Connector
LAN8870
VDDA VDDIO
VBAT
Load Switch
RGMII MDC/MDIO WAKE_OUT WAKE_IN RESET LEDs
VDD_SYS 3.3V or 2.5V
LED
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A-page 9
EVB-LAN8870-RGMII Evaluation Board User’s Guide
1.3 REFERENCES
Concepts and materials available in the following documents may be helpful
when reading this document. Visit www.microchip.com for the latest
documentation. · LAN8870 Data Sheet · LAN8870 Schematics · EVB-LAN7431-EDS
Board User’s Guide · EVB-LAN7801-EDS Board User’s Guide · MIC94060 Data Sheet
· MIC1726 Data Sheet · VXM7-9013 Data Sheet
DS50003747A-page 10
2024 Microchip Technology Inc. and its subsidiaries
EVB-LAN8870-RGMII EVALUATION BOARD
USER’S GUIDE
Chapter 2. Getting Started
2.1 INTRODUCTION
The EVB-LAN8870-RGMII Evaluation Board is designed as a plug-in card to
interface directly with a mating Microchip host processor or controller board,
such as the EVB-LAN7431-EDS Board, that supplies full power and provides full
register access and configuration via MDIO/MDC bus management.
2.2 DEFAULT JUMPER SETTINGS
The EVB-LAN8870-RGMII ships with the necessary jumpers installed for basic
operation. These are: · J4: shunt installed between pins [1-2] · J5: shunt
installed between pins [1-2] · J13: shunt installed between pins [2-3] · J15:
shunt installed between pins [2-3] · J17: shunt installed between pins [2-3] ·
J18: shunt installed between pins [2-3] · J20: shunt installed between pins
[2-3] · J21: shunt installed between pins [1-2] · J22: shunt installed between
pins [1-2] See Figure 3-1 for an image of these default shunt installations.
See Section 3.4 “Connectors” for a full list of connector/header descriptions
and directions for use.
2.3 POWER SOURCE
The EVB-LAN8870-RGMII can be completely bus-powered from its mating Microchip
host processor or control board. Alternatively, the EVB-LAN8870-RGMII can be
powered with an external 3.3V supply. Refer to Figure 3-1 and the board
schematics in Figure A-1 for details.
2.3.1 EDS-Powered Operation
For EDS-powered operation: · J18 needs a jumper on either pins [1-2] for 2.5V
operation or pins [2-3] for 3.3V
operation. · Either one of the following two options but not both options:
– J13 [2-3] and J20 [2-3] for normal operation – J13 [1-2] and J20 [1-2] for
TC10 application where INH controls non-VBAT
Power Supplies
2.3.2 External-Powered Operation
For external-powered operation: · VDDA: Apply 2.5V or 3.3V to J20, pin 2
(center pin) · VDDIO: Apply 1.8V, 2.5V or 3.3V to J13, pin 2 (center pin)
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A-page 11
EVB-LAN8870-RGMII Evaluation Board User’s Guide
2.4 CLOCK
The EVB-LAN8870-RGMII utilizes a 25 MHz crystal to generate input reference
clock for the LAN8870 device. Refer to Figure A-1 for details.
2.5 RESET CIRCUIT
2.5.1 Power-On Reset–EDS Reset
The EVB-LAN7801-EDS or EVB-LAN7431-EDS can provide the LAN8870 Reset when a
jumper is placed on EVB-LAN8870-RGMII, J15 pins [2-3] (EDS Reset).
2.5.2 Manual Reset
The EVB-LAN8870-RGMII SW1 can be pressed and released to provide LAN8870 Reset
after device power-up. The EVB-LAN8870-RGMII J18 must have a jumper between
pins [1-2] (Onboard) to utilize this manual Reset.
2.6 USING THE EVB-LAN8870-RGMII
2.6.1 With EVB-LAN7431-EDS
For EVB-LAN7431-EDS to work with the EVB-LAN8870-RGMII, a specific LAN7431
EEPROM image should be programmed onto the EVB-LAN7431-EDS baseboard. This
EEPROM is on the LAN7431 product page, and this EEPROM is also preprogrammed
on the EVB-LAN7431-EDS board. This is necessary to ensure that RGMII TXC and
RXC delay settings are appropriately configured, and the LAN7431’s 125 MHz
clock source is enabled. All LAN8870 registers are accessible via MDIO/MDC bus
management from the EVB-LAN7431-EDS (through both Windows® and Linux®),
enabling full evaluation.
FIGURE 2-1:
EVB-LAN8870-RGMII AND EVB-LAN7431-EDS BOARDS (TOP VIEW)
2.6.2 With EVB-LAN7801-EDS
For EVB-LAN7801-EDS to work with the EVB-LAN8870-RGMII, a specific LAN7801
EEPROM image should be programmed onto the EVB-LAN7801-EDS baseboard. This
EEPROM is on the LAN7801 product page and preprogrammed on the EVB-LAN7801-EDS
board. This is necessary to ensure that RGMII TXC and RXC
DS50003747A-page 12
2024 Microchip Technology Inc. and its subsidiaries
Getting Started
delay settings are appropriately configured and that the LAN7801’s 125 MHz
clock source is enabled. All LAN8870 registers are accessible via MDIO/MDC bus
management, enabling full LAN8870 evaluation through either of these methods:
· EVB-LAN7801-EDS with Windows or Linux
– Populate EVB-LAN7801-EDS J15 (MDC). – Populate EVB-LAN7801-EDS J16 (MDIO). ·
EVB-LAN8870-RGMII – Do not populate EVB-LAN7801-EDS J15 (MDC). – Do not
populate EVB-LAN7801-EDS J16 (MDIO).
EVB-LAN8870-RGMII headers J10 (MDC) and J11 (MDIO) are provided for local
LAN8870 evaluation with a Serial Management Interface (SMI) tool.
FIGURE 2-2:
EVB-LAN8870-RGMII AND EVB-LAN7801-EDS BOARD (TOP VIEW)
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A-page 13
EVB-LAN8870-RGMII Evaluation Board User’s Guide
NOTES:
DS50003747A-page 14
2024 Microchip Technology Inc. and its subsidiaries
EVB-LAN8870-RGMII EVALUATION BOARD
USER’S GUIDE
Chapter 3. Hardware Configuration
3.1 HARDWARE CONFIGURATION OPTIONS
Figure 3-1 shows the top view of the EVB-LAN8870-RGMII.
FIGURE 3-1:
EVB-LAN8870-RGMII TOP VIEW WITH CALLOUTS
MDIO/MDC Management
Microchip LAN8870 100BASE-T1/
1000BASE-T1 Ethernet PHY
VDD Select (Normal/ TC10)
100BASE-T1/ 1000BASE-T1
Connector
Microchip VXM7
25MHz Crystal Microchip MIC1726
Voltage Regulator
VDDIO Source Select
(1.8V/2.5V/3.3V)
Microchip MIC94060 Load Switch
Microchip MIC94060 Load Switch
INH Enable
Speed/PHYAD4 MODE/PHYAD2
Reset Select
Reset WAKE_IN
Select PHYAD[1:0] Managed/ Autonomous Mode Auto-Negotiation/
PHYAD3
VDDA (VDD_SYS) Source Select (2.5V/3.3V)
3.2 PHY PORT
PHY port (J13) supports 100BASE-T1/1000BASE-T1 operation.
3.3 TEST POINTS
Table 3-1 lists the test points on the EVB-LAN8870-RGMII:
TABLE 3-1:
TEST POINTS Test Point
J1 J6 TP1 TP2 TP3 TP4
Description
GND GND GND GND VDDIO EDS CLK125
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A-page 15
EVB-LAN8870-RGMII Evaluation Board User’s Guide
TABLE 3-1:
TEST POINTS (CONTINUED) Test Point
TP6 TP7 J23
Description 1588_CLK
VBAT PPS
3.4 CONNECTORS
Table 3-2 lists the connectors on the EVB-LAN8870-RGMII:
TABLE 3-2: CONNECTORS
Connector Reference Designator
Function
Options
J2
Auto-Negotiation Enable
Closed: LAN8870 Auto-Negotiation Disabled
(J4 Open – Autonomous mode)
Open: LAN8870 Auto-Negotiation Enabled
PHYAD3 (J4 Closed – Managed mode)
Closed: PHYAD3 = 0 Open: PHYAD3 = 1
J3
100BASE-T1/1000BASE-T1 N/A
Connector
J4
MANAGED Mode Selection Closed: LAN8870 is in Managed mode.
Open: LAN8870 is in Autonomous mode.
J5
MASTER Mode Selection
Closed: LAN8870 configured as leader.
(J4 Open – Autonomous mode)
Open: LAN8870 configured as follower.
PHYAD2 (J4 Closed – Managed mode)
Closed: PHYAD2 = 1 Open: PHYAD2 = 0
J7
WAKE OUT Jumper
Closed: Allows LAN8870 WAKE_OUT access to MAC through J14 RGMII connector
J8
WAKEIN Jumper
Open: LAN8870 WAKE_OUT isolated from MAC
Closed: Allows LAN8870 WAKE_IN access to MAC through J14 RGMII Connector
J10
MDC Header
J11
MDIO Header
J13
VDDIO SEL Select
Open: LAN8870 WAKE_IN isolated from MAC N/A N/A
Shunt pins [1-2]: VDDIO can be turned off in LAN8870 TC10 Sleep State.
Shunt pins [2-3]: VDDIO is always enabled.
J14 Note 1:
(See Note 1.)
RGMII Connector
N/A
A shunt must be placed on either [1-2] or [2-3] for LAN8870 power.
DS50003747A-page 16
2024 Microchip Technology Inc. and its subsidiaries
Hardware Configuration
TABLE 3-2: CONNECTORS (CONTINUED)
Connector Reference Designator
Function
Options
J15
RESET Select
Shunt pins [1-2]: Reset comes from local Reset button (SW1).
J16
INH
Shunt pins [2-3]: Reset comes from MAC (EDS) device.
Closed: Allows LAN8870 INH access to MAC through J14 RGMII Connector
Open: LAN8870 INH isolated from MAC
J17
100BASE-T1 Ethernet Con- N/A
nector
J18
VDD_SYS Select
Shunt pins [1-2]: Selects 2.5V for VDD
Shunt pins [2-3]: Selects 3.3V for VDD
(See Note 1.)
J19
SPEED Selection (J4 Open – Closed: LAN8870 is in 100BASE-T1 speed.
Autonomous Mode)
Open: LAN8870 is in 1000BASE-T1 speed.
PHYAD4 (J4 Closed – Managed Mode)
Closed: PHYAD4 = 0 Open: PHYAD4 = 1
J20
VDD SEL Select
Shunt pins [1-2]: VDD can be turned off in LAN8870 TC10 Sleep State.
Shunt pins [2-3]: VDD is always enabled.
J21
PHYAD0
(See Note 1.) Closed: PHYAD0 = 0
J22
PHYAD1
Open: PHYAD0 = 1 Closed: PHYAD1 = 0
Open: PHYAD1 = 1 Note 1: A shunt must be placed on either [1-2] or [2-3] for LAN8870 power.
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A-page 17
EVB-LAN8870-RGMII Evaluation Board User’s Guide
NOTES:
DS50003747A-page 18
2024 Microchip Technology Inc. and its subsidiaries
EVB-LAN8870-RGMII EVALUATION BOARD
USER’S GUIDE
Appendix A. Schematics
A.1 INTRODUCTION
This appendix shows the EVB-LAN8870-RGMII schematics.
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A-page 19
EVB-LAN8870-RGMII Evaluation Board User’s Guide
DS50003747A-page 20
FIGURE A-1:
EVB-LAN8870-RGMII SCHEMATIC 1
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(9*$ EVB-LAN8870-RGMII Plug-in Card
6KHHW7LWOH
Designed with
/$1 3+<
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$OWLXPFRP
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2024 Microchip Technology Inc. and its subsidiaries
2024 Microchip Technology Inc. and its subsidiaries
FIGURE A-2:
EVB-LAN8870-RGMII SCHEMATIC 2
1
2
3
4
5
6
VDDIO_EDS
VDDIO_EDS U2 4 VIN VOUT 1
J13
3 2
1
VDDIO
INH_LS A
3 5 2
ENABLE GND GND NC
6
MIC94060
MIC94060
VDD SEL
R27
TC10: 1-2 Non-TC10: 2-3
1k
“VDDIO” D2
J13 Pos 1-2: VDDIO supplies turned off while LAN8870 is asleep.
J13 Pos 2-3: VDDIO supplies active while LAN8870 is asleep.
2 RXD0
2
RXD1
2 RXD2
2 RXD3
RGMII_RX i
B
2 RXCTL
RXC/RXCLK is provided by PHY (LAN8870). EDS board will accept RX Clock (MII/GMII/RGMII) througRXC signal.
2
RXC
PCB Layout Constraint: The RGMII TXC TXD signals & RXC RXD signals must be trace length matched between the DUT and the high-speed connector.
J14
Power
i
2
1
4
3
6
5
8
7
10
9
12
11
14
13
J8
16
15
GPIO_WAKEIN
2
W1AKE IN
18
17
20
19
INH_PROC
J16 2
1INH
22
21
GPIO_WAKEOUT 2
1
24
23
26
25
J7 WAKE OUT
28
27
30
29
32
31
34
33
36
35
38
37
40
39
42
41
44
43
46
45
48
47
50
49
3V3
J18 Power
3V3 3
i VDD_SYS
2V5
2
2V5 1
VDD_SYS
VDDIO_EDS
TP3 VDDIO
DNP
2V5 3V3
52
51
54
53
PHY_RESET_N
56
55
58
57
R48
0R DNP
nINT
2
TXCLK is MII/GMII clock provided by PHY (LAN8870). TXC is RGMII clock provided by
3
TXCLK
60
59
62
61
R51
0R DNP
PHY. EDS board accepts either clock based on management mode.
2
TXC
64
63
66
65
R1
0R DNP
RGMII_TX i
2 TXCTL
68
67
70
69
72
71
MDC DNP
74
73
J10
C
76
75
78
77
80
79
MDC
2
MDIO 2
82
81
84
83
J11DNP
86
85
MDIO
2 2
TXD3
88
87
90
89
TXD2
92
91
94
93
2
TXD1
96
95
98
97
2 TXD0
100
99
0 GND
LABEL1
VDD_SYS
Power
VDD_SYS U3
i J20 3 2
Power i
VDD
4 VIN VOUT 1
1
A
INH_LS
3 5 2
ENABLE GND GND NC
6
VDD SEL TC10: 1-2 Non-TC10: 2-3
R3 1k
MIC94060
“VDD”
MIC94060
J20 Pos 1-2: non-VBAT
D6
R35
supplies turned off while
0R
LAN8870 is asleep.
J20 Pos 2-3: non-VBAT supplies active while LAN8870 is asleep.
INH
2
WAKE_OUTVD2D_SYS
R49
4.7k
R46
1k
EDS3 J17
4 SW2
2 1 OnBoar1d
3
2
WAKE_IN
WAKE_IN Sel LOCAL WAKE: 1-2
EDS WAKE: 2-3
VDD
B WAKE_IN 2
4 SW1
VDD
J15
R25
100k 1
D5
EDS 3
MMBD91O4 nBoard1
2
D4 RED “Reset”
R15 470R
RST_N 2
3
2
Reset
C37
RESET Sel
1uF
RESET: 1-2
EDS RESET: 2-3
C
JP5
JP6
JP7
JP8
Place J17 Pos 2-3 Place J15 Pos 2-3 Place J20 Pos 2-3 Place J13 Pos 2-3 JP9
Place J18 Pos 2-3
D 1
QTS-050-XX-L-D-A-GP
J1 should be placed by J13 J6 should be placed by J18
LABEL Need Help Small
Fiducials FD1 FD2 FD3
i Top Layer
High speed connector mounts on bottom side.
TP2
TP1
J1
J6
GND
DNP GND GND
FD4 FD5 FD6
i Bottom Layer
MH1 MH2 MH3 MH4
Project Owner: John MacKay
PCB Layout Contact:
D
John MacKay
PartNumber:
Project Title
Variant: [No Variations]
EV39G24A EVB-LAN8870-RGMII Plug-in Card
Sheet Title
Designed with
Hi-Speed RGMII Interface
Size B
SCH #: 03-00634 PCB #: 04-11724
Rev: C Rev: C
Date: 2/16/2024 Sheet 3 of 3
Altium.com
File: UNG8383_3-RGMII Interface.SchDoc
2
3
4
5
6
Schematics
DS50003747A-page 21
EVB-LAN8870-RGMII Evaluation Board User’s Guide
NOTES:
DS50003747A-page 22
2024 Microchip Technology Inc. and its subsidiaries
EVB-LAN8870-RGMII EVALUATION BOARD
USER’S GUIDE
Appendix B. Bill of Materials
B.1 INTRODUCTION
This appendix contains the EVB-LAN8770-RMII Evaluation Board evaluation board
Bill of Materials (BOM).
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A-page 23
2024 Microchip Technology Inc. and its subsidiaries
DS50003747A-page 24
TABLE B-1: EVB-LAN8870-RGMII BILL OF MATERIALS
Item Quantity
Designator
Description
1
4
C1, C13, C17, C47
CAP CER 1uF 35V 10% X5R SMD 0402
2
12 C2, C5, C9, C11, C12, C15, C16, C34, C35, CAP CER 0.1uF 35V 10% X7R SMD 0402
C39, C41, C46
3
5
C10, C19, C36, C38, C40
CAP CER 4.7uF 6.3V 20% X5R SMD 0402
4
2
C14, C18
CAP HiQ 15pF 50V 5% NP0 2.32GHz SMD 0402
5
2
C24
CAP CER 10uF 25V 20% X5R SMD 0603
6
1
C25
7
1
C28
8
2
C30, C31
9
1
C33
10
1
C37
11
7
C48, C49, FB4, FB6, FB7, R45, R50
12
3
D1, D2, D6
13
1
D3
CAP CER 47uF 6.3V 20% X5R SMD 0805v CAP CER 0.1uF 16V 10% X7R SMD 0402 CAP CER 0.1uF 250V 10% X7T SMD 0805 CAP CER 4700pF 250V 10% X7R SMD 0805 CAP CER 1uF 16V 10% X5R SMD 0603 RES TKF 0R 1/10W SMD 0603 AEC-Q200 DIO LED GREEN 2V 30mA 35mcd Clear SMD 0603 DIO TVS ARRAY PESD2ETH100-TR 24V SMD SOT-23-3
14
1
D4
DIO RED 2V 20mA 54mcd CLEAR SMD 0603
15
1
D5
DIO RECT MMBD914LT1G 1V 10mA 100V SMD SOT-23-3
16
5
J1, J6, J23, TP4, TP6
CON HDR-2.54 Male 1×1 Gold 5.84MH TH VERT
17
9
J2, J4, J5, J7, J8, J16, J19, J21, J22
18
1
J3
19
5
J13, J15, J17, J18, J20
20
1
J14
CON HDR-2.54 Male 1×2 Gold 5.84MH TH VERT CON HDR-1.8 MALE 1X2 TIN SHROUD 7MH TH R/A CON HDR-2.54 Male 1×3 Gold 5.84MH TH VERT CON STRIP High Speed Stacker 5mm Male 2×50 SMD VERT
21
1
L1
CM CHOKE 2.4R@100kHZ 80uH SMD 3.2X2.5MM AEC-Q200
22
11 R2, R7, R10, R14, R17, R19, R22, R36,
RES TKF 10k 1% 1/10W SMD 0402
R38, R39, R41
23
12 R3, R5, R21, R23, R24, R26, R27, R30,
RES TKF 1k 5% 1/16W SMD 0402
R33, R40, R42, R46
24
6
R4, R6, R8, R9, R11, R12
RES TKF 22R 1% 1/16W SMD 0402
25
1
R13
RES TKF 16.9k 1% 1/10W SMD 0603 AEC-Q200
26
1
R15
RES TKF 470R 1% 1/16W MF 0402
27
1
R16
RES TF 10k 1% 1/16W SMD 0603
28
4
R18, R28, R35
RES TKF 0R SMD 0402 AEC-Q200
29
1
R20
RES TKF 49.9R 1% 1/10W SMD 0603
30
1
R25
RES TF 100k 1% 1/10W SMD 0603
31
2
R29, R31
RES TF 1k 1% 1/2W SMD 1206
Populated
Manufacturer
Manufacturer Part Number
YES YES
Murata Electronics North America GRM155R6YA105KE11D
TDK Corporation
CGA2B3X7R1V104K050BB
YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES
Murata
GRM155R60J475ME47D
Johanson Technology Inc
500R07S150JV4T
Murata Electronics North America GRM188R61E106MA73D
Taiyo Yuden Murata TDK Corporation KEMET AVX Panasonic Electronic Company Lite-On Inc Nexperia
JMK212BJ476MG-T GRM155R71C104KA88D C2012X7T2E104K125AA C0805C472KARACAUTO 0603YD105KAT2A ERJ-3GEY0R00V LTST-C191KGKT PESD2ETH100-TR
Lite-On Inc
LTST-C191KRKT
ON Semiconductor
MMBD914LT1G
TE Connectivity
5-146280-1
FCI TE Connectivity
68001-202HLF 9-2304372-9
FCI Samtec
68000-103HLF QTS-050-01-L-D-A-GP
ACT1210G-800-2P-TL10 Panasonic
DLW43MH201XK2L ERJ-2RKF1002X
YES Yageo
RC0402JR-071KL
YES YES YES YES YES YES YES YES
Yageo Stackpole Electronics Inc Yageo TE Connectivity Passive Product Panasonic Panasonic Yageo Stackpole Electronics Inc
RC0402FR-0722RL RMCF0603FT16K9 RC0402FR-07470RL CPF0603F10KC1 ERJ-2GE0R00X ERJ-3EKF49R9V RC0603FR-07100KL RNCP1206FTD1K00
EVB-LAN8870-RGMII Evaluation Board User’s Guide
2024 Microchip Technology Inc. and its subsidiaries
TABLE B-1: EVB-LAN8870-RGMII BILL OF MATERIALS (CONTINUED)
Item Quantity
Designator
Description
Populated
Manufacturer
Manufacturer Part Number
32
1
R32
33
1
R34
34
2
SW1, SW2
35
1
TP2
36
1
U1
37
2
U2, U3
38
1
U4
39
1
Y1
40
1
C3
41
1
C26
42
1
C27
43
1
C29
44
1
FB2
45
2
J10, J11
46
1
J24
47
1
R1, R47, R48, R51
48
1
R37
49
1
R44
50
2
TP1, TP3
51
1
TP7
52`
1
Y2
RES TKF 12.1k 1% 1/16W SMD 0402 RES TKF 100k 1% 1/4W SMD 0603 SWITCH TACT
SPST-NO 16V 0.05A PTS810 SMD CON TP LOOP Black 3.18×5.59 TH MCHP INTERFACE
ETHERNET LAN8870 VQFN-48 AEC-Q100 MCHP ANALOG HIGH-SIDE LOAD SWITCH 2A
MIC94060 SC70-6 MCHP ANALOG LDO 0.8V-5V MCP1726T-ADJE/MF DFN-8 MCHP CRYSTAL
25Mhz 10pF SMD L3.2W2.5H0.8 CAP CER 4.7uF 6.3V 20% X5R SMD 0402 CAP CER 47uF
6.3V 20% X5R SMD 0805 CAP CER 10uF 25V 20% X5R SMD 0603 CAP CER 0.1uF 35V 10%
X7R SMD 0402 RES TKF 0R 1/10W SMD 0603 AEC-Q200 CON HDR-2.54 Male 1×1 Gold
5.84MH TH VERT CON RF Coaxial MMCX Female 2P TH VERT
RES TKF 0R SMD 0402 AEC-Q200 RES TKF 0R <0.01R 1/5W SMD 0402 RES TKF 10k 1%
1/10W SMD 0402 MISC, TEST POINT MULTI PURPOSE MINI BLACK CON TP LOOP Black
3.18×5.59 TH MCHP CLOCK OSCILLATOR SINGLE 125Mhz MX573EBC125M000 LGA-6
YES YES YES YES YES YES
Vishay Vishay C&K Components Keystone Electronics Microchip Technology Microchip Technology
CRCW040212K1FKEDC CRCW0603100KFKEAHP PTS810 SJM 250 SMTR LFS 5006 LAN8870-V/PUAVAO MIC94060YC6-TR
YES YES DNP DNP DNP DNP DNP DNP DNP
DNP DNP DNP DNP DNP DNP
Microchip Technology
MCP1726T-ADJE/MF
Microchip Technology
VXM7-9013-25M0000000
Murata
GRM155R60J475ME47D
Taiyo Yuden
JMK212BJ476MG-T
Murata Electronics North America GRM188R61E106MA73D
TDK Corporation
CGA2B3X7R1V104K050BB
Panasonic Electronic Components ERJ-3GEY0R00V
TE Connectivity
5-146280-1
Cinch Connectivity Solutions Johnson
Panasonic
135-3701-211 ERJ-2GE0R00X
Vishay
CRCW04020000Z0EDHP
Panasonic
ERJ-2RKF1002X
Keystone
5001
Keystone Electronics
5006
Microchip Technology
MX573EBC125M000-TR
Bill of Materials
DS50003747A-page 25
AMERICAS
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480-792-7200 Fax:
480-792-7277 Technical Support:
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China – Shenyang Tel: 86-24-2334-2829
China – Shenzhen Tel: 86-755-8864-2200
China – Suzhou Tel: 86-186-6233-1526
China – Wuhan Tel: 86-27-5980-5300
China – Xian Tel: 86-29-8833-7252
China – Xiamen Tel: 86-592-2388138
China – Zhuhai Tel: 86-756-3210040
ASIA/PACIFIC
India – Bangalore Tel: 91-80-3090-4444
India – New Delhi Tel: 91-11-4160-8631
India – Pune Tel: 91-20-4121-0141
Japan – Osaka Tel: 81-6-6152-7160
Japan – Tokyo Tel: 81-3-6880- 3770
Korea – Daegu Tel: 82-53-744-4301
Korea – Seoul Tel: 82-2-554-7200
Malaysia – Kuala Lumpur Tel: 60-3-7651-7906
Malaysia – Penang Tel: 60-4-227-8870
Philippines – Manila Tel: 63-2-634-9065
Singapore Tel: 65-6334-8870
Taiwan – Hsin Chu Tel: 886-3-577-8366
Taiwan – Kaohsiung Tel: 886-7-213-7830
Taiwan – Taipei Tel: 886-2-2508-8600
Thailand – Bangkok Tel: 66-2-694-1351
Vietnam – Ho Chi Minh Tel: 84-28-5448-2100
EUROPE
Austria – Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393
Denmark – Copenhagen Tel: 45-4485-5910 Fax: 45-4485-2829
Finland – Espoo Tel: 358-9-4520-820
France – Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79
Germany – Garching Tel: 49-8931-9700
Germany – Haan Tel: 49-2129-3766400
Germany – Heilbronn Tel: 49-7131-72400
Germany – Karlsruhe Tel: 49-721-625370
Germany – Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44
Germany – Rosenheim Tel: 49-8031-354-560
Israel – Hod Hasharon Tel: 972-9-775-5100
Italy – Milan Tel: 39-0331-742611 Fax: 39-0331-466781
Italy – Padova Tel: 39-049-7625286
Netherlands – Drunen Tel: 31-416-690399 Fax: 31-416-690340
Norway – Trondheim Tel: 47-7288-4388
Poland – Warsaw Tel: 48-22-3325737
Romania – Bucharest Tel: 40-21-407-87-50
Spain – Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91
Sweden – Gothenberg Tel: 46-31-704-60-40
Sweden – Stockholm Tel: 46-8-5090-4654
UK – Wokingham Tel: 44-118-921-5800 Fax: 44-118-921-5820
DS50003747A-page 26
2024 Microchip Technology Inc. and its subsidiaries
04/15/24
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