10BASE-T1S Ethernet PHY Transceiver LAN8670 USB Evaluation Board (EVB-LAN8670-USB) User's Guide
Brand: Microchip
Document ID: DS60001707B
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 the Microchip 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.
Introduction
This chapter contains general information that will be useful to know before using the EVB-LAN8670-USB. Topics discussed in this chapter include:
- Intended Use
- Document Layout
- Customer Support
- Document Revision History
Intended Use
This Microchip product is intended to be used for developing or testing 10BASE-T1S Ethernet network devices by persons with experience in this field of knowledge.
Note: The operation of this Microchip product is only admitted with original Microchip devices. Do not interfere with the product's original state. Otherwise, user safety, faultless operation, and electromagnetic compatibility are not ensured. To avoid electric shocks and short circuits, use this device only in an appropriate environment. This open device may exceed the limits of electromagnetic interference. Electromagnetic compatibility can be only achieved if the equipment is built into an appropriate housing.
Document Layout
This user's guide describes how to use the EVB-LAN8670-USB. The document is organized as follows:
- Chapter 1, Introduction – This chapter introduces the EVB-LAN8670-USB, shows an illustration of the board, and lists the product features.
- Chapter 2, Board Details – This chapter gives an overview of jumpers, connectors, and electrical characteristics.
- Chapter 3, Assembly Plan and Mechanical Dimensions – This chapter shows the assembly plan (top and bottom views) and the mechanical dimensions of the board.
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
Revision B (July 2021)
- Removed document status and confidential ranking
Revision A (May 2021)
- Initial release of this document
Chapter 1. Introduction
1.1 Overview
The EVB-LAN8670-USB utilizes Microchip's LAN9500A, which is a Hi-Speed USB 2.0 to 10/100 Ethernet controller, to interconnect a USB interface with a 10BASE-T1S Ethernet network interface. Thus, the adapter serves as a network card that connects applications via USB to the 10BASE-T1S network interface.
Figure 1-1: EVB-LAN8670-USB
Description of the EVB-LAN8670-USB board: The board features a USB connector (labeled J4), a network connector (labeled J5), status LEDs (PWR, LED1, LED2, LED3), and various components. The PWR LED indicates power status, LED1 is green when powered, LED2 is for future use, and LED3 is green. Jumpers J1 and J2 are visible for termination.
1.2 Product Features
- USB to 10BASE-T1S interface card
- 10 Mbit/s short-reach single-pair Ethernet physical layer transceiver
- Supports half-duplex point-to-point link segments
- Supports half-duplex multidrop mixing segments
- Connects to a USB host
- Physical Layer Collision Avoidance (PLCA)
- Screw terminal for direct cable connection (no connector needed)
- Configurable on-board termination
Chapter 2. Board Details
2.1 Electrical Characteristics
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| USB Connector Voltage | 4.75 | 5 | 5.25 | V |
2.2 Connectors
All connectors are mounted on the top side of the board.
2.2.1 USB Connector
The EVB-LAN8670-USB provides a USB connector (J4) to connect to a USB device. Type: 0480370001, standard type A, from Molex.
2.2.2 Network Connector
The network connector (J5) is used as the interface to the network. Type: 691214110002, fixed terminal block, from Würth Elektronik.
The terminal pins are described in Table 2-1.
Table 2-1: J5 – PIN DESCRIPTION
| Pin | Description |
|---|---|
| Terminal 1 | TRX_P |
| Terminal 2 | TRX_N |
2.3 Jumpers
All jumpers are mounted on the top side of the board. Their location is depicted in Figure 3-1.
2.3.1 Termination
The termination jumpers (J1 and J2) are used for enabling 100 Ohm edge termination at the ends of a 10BASE-T1S segment.
Note: Both jumpers must be closed to enable edge termination.
2.4 LEDs
All LEDs are mounted on the top side of the board. The table below gives an overview of the LEDs and the states they signal.
| Name | State | Description |
|---|---|---|
| PWR | Off | The EVB-LAN8670-USB is not powered. |
| PWR | On (green) | The EVB-LAN8670-USB is powered. |
| LED 1 | Off | |
| LED 1 | On (red) | |
| LED 2 | Off | Future use |
| LED 2 | On (yellow) | Future use |
| LED 3 | Off | |
| LED 3 | On (green) |
Chapter 3. Assembly Plan and Mechanical Dimensions
3.1 Top View and Mechanical Dimensions
The mechanical dimensions are shown in Figure 3-1. The board measures 48.0 mm by 25.0 mm.
Figure 3-1: Assembly Plan – Top View and Mechanical Dimensions
Description of the top view of the evaluation board, showing component placement and overall dimensions.
3.2 Bottom View
Figure 3-2: Assembly Plan – Bottom View
Description of the bottom view of the evaluation board, showing component placement.
List of Figures
- Figure 1-1: EVB-LAN8670-USB
- Figure 3-1: Assembly Plan – Top View and Mechanical Dimensions
- Figure 3-2: Assembly Plan – Bottom View
List of Tables
- Table 2-1: J5 – Pin Description
Worldwide Sales and Service
Microchip Technology Inc. provides worldwide sales and service. Contact information is organized by region:
Americas
Corporate Office
2355 West Chandler Blvd., Chandler, AZ 85224-6199
Tel: 480-792-7200, Fax: 480-792-7277
Technical Support
Visit http://www.microchip.com/support
Web Address
Regional Offices (Americas)
- Atlanta: Duluth, GA - Tel: 678-957-9614, Fax: 678-957-1455
- Austin: TX - Tel: 512-257-3370
- Boston: Westborough, MA - Tel: 774-760-0087, Fax: 774-760-0088
- Chicago: Itasca, IL - Tel: 630-285-0071, Fax: 630-285-0075
- Dallas: Addison, TX - Tel: 972-818-7423, Fax: 972-818-2924
- Detroit: Novi, MI - Tel: 248-848-4000
- Houston: TX - Tel: 281-894-5983
- Indianapolis: Noblesville, IN - Tel: 317-773-8323, Fax: 317-773-5453, Tel: 317-536-2380
- Los Angeles: Mission Viejo, CA - Tel: 949-462-9523, Fax: 949-462-9608, Tel: 951-273-7800
- Raleigh: NC - Tel: 919-844-7510
- New York: NY - Tel: 631-435-6000
- San Jose: CA - Tel: 408-735-9110, Tel: 408-436-4270
- Canada - Toronto: Tel: 905-695-1980, Fax: 905-695-2078
Asia/Pacific
Australia
- Sydney: Tel: 61-2-9868-6733
China
- Beijing: Tel: 86-10-8569-7000
- Chengdu: Tel: 86-28-8665-5511
- Chongqing: Tel: 86-23-8980-9588
- Dongguan: Tel: 86-769-8702-9880
- Guangzhou: Tel: 86-20-8755-8029
- Hangzhou: Tel: 86-571-8792-8115
- Hong Kong SAR: Tel: 852-2943-5100
- Nanjing: Tel: 86-25-8473-2460
- Qingdao: Tel: 86-532-8502-7355
- Shanghai: Tel: 86-21-3326-8000
- Shenyang: Tel: 86-24-2334-2829
- Shenzhen: Tel: 86-755-8864-2200
- Suzhou: Tel: 86-186-6233-1526
- Wuhan: Tel: 86-27-5980-5300
- Xian: Tel: 86-29-8833-7252
- Xiamen: Tel: 86-592-2388138
- Zhuhai: Tel: 86-756-3210040
India
- Bangalore: Tel: 91-80-3090-4444
- New Delhi: Tel: 91-11-4160-8631
- Pune: Tel: 91-20-4121-0141
Japan
- Osaka: Tel: 81-6-6152-7160
- Tokyo: Tel: 81-3-6880-3770
Korea
- Daegu: Tel: 82-53-744-4301
- Seoul: Tel: 82-2-554-7200
Malaysia
- Kuala Lumpur: Tel: 60-3-7651-7906
- 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
- Kaohsiung: Tel: 886-7-213-7830
- 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 - Ra'anana: Tel: 972-9-744-7705
- 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
Trademarks
Microchip Technology Incorporated holds numerous registered trademarks, including but not limited to: Microchip, Adaptec, AnyRate, AVR, AVR logo, AVR Freaks, BesTime, BitCloud, chipKIT, chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck, LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi, Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer, PackeTime, PIC, picoPower, PICSTART, PIC32 logo, PolarFire, Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC, SST, SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon, TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA. Other registered trademarks include AgileSwitch, APT, ClockWorks, The Embedded Control Solutions Company, EtherSynch, FlashTec, Hyper Speed Control, HyperLight Load, IntelliMOS, Libero, motorBench, mTouch, Powermite 3, Precision Edge, ProASIC, ProASIC Plus, ProASIC Plus logo, QuietWire, SmartFusion, SyncWorld, Temux, TimeCesium, TimeHub, TimePictra, TimeProvider, WinPath, and ZL. Additional trademarks include Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, Augmented Switching, BlueSky, BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, Espresso T1S, EtherGREEN, IdealBridge, In-Circuit Serial Programming, ICSP, INICnet, Intelligent Paralleling, Inter-Chip Connectivity, JitterBlocker, maxCrypto, maxView, memBrain, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple Blocker, RTAX, RTG4, SAM-ICE, Serial Quad I/O, simpleMAP, SimpliPHY, SmartBuffer, SMART-I.S., storClad, SQI, SuperSwitcher, SuperSwitcher II, Switchtec, SynchroPHY, Total Endurance, TSHARC, USBCheck, VariSense, VectorBlox, VeriPHY, ViewSpan, WiperLock, XpressConnect, and ZENA. 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.
