Microchip Technology LAN9646 EDS2 User Manual
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Microchip Technology LAN9646 EDS2 User Manual

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LAN9646 EDS2
Daughter Card
User's Guide
 2024 Microchip Technology Inc. and its subsidiaries
DS50003758A

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Summary of Contents for Microchip Technology LAN9646 EDS2

  • Page 1 LAN9646 EDS2 Daughter Card User’s Guide  2024 Microchip Technology Inc. and its subsidiaries DS50003758A...
  • Page 2 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.

  • Page 3: Table Of Contents

    1.3 References ....................10 1.4 Acronyms and Definitions ................10 Chapter 2. Getting Started 2.1 Overview ...................... 13 2.2 LAN9646 EDS2 Daughter Card Installation ..........13 2.3 Quick Start ....................16 2.4 LAN9646 EDS2 Daughter Card Removal ............ 17 Chapter 3. Hardware 3.1 Introduction ....................
  • Page 4 LAN9646 EDS2 Daughter Card User’s Guide Appendix B. Bill of Materials B.1 Introduction ....................43 Appendix C. PCB Layers C.1 Introduction ....................47 Worldwide Sales and Service ..................52  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 4...

  • Page 5: Preface

    • Customer Support • Document Revision History DOCUMENT LAYOUT This document features the LAN9646 EDS2 Daughter Card. The manual layout is as fol- lows: • Chapter 1. “Overview” – This chapter provides an overview of the LAN9646 EDS2 Daughter Card and a brief description of the card’s features.

  • Page 6: Conventions Used In This Guide

    Choice of mutually exclusive errorlevel {0|1} character: { | } arguments; an OR selection Ellipses... Replaces repeated text var_name [, var_name...] Represents code supplied by void main (void) user { ...  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 6...

  • Page 7: Warranty Registration

    MPLAB REAL ICE in-circuit emulator, MPLAB ICD 3 in-circuit debugger and MPLAB PM3 device programmers. Also included are nonproduction development programmers such as PICSTART Plus and PIC-kit 2 and 3.  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 7...

  • Page 8: Customer Support

    Technical support is available through the web site at: http://www.microchip.com/support DOCUMENT REVISION HISTORY Revisions Section/Figure/Entry Correction DS50003758A Initial release (09-27-24)  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 8...

  • Page 9: Chapter 1. Overview

    LAN9646 Gigabit Ethernet RGMII Switch when used with a Microchip EDS2 compati- ble host board. A SODIMM 260-pin connector for the EDS2 Host - LAN9646 EDS2 Daughter Card Interface is used due to its high performance, high pin count, and low cost.

  • Page 10: Features

    REFERENCES Concepts and materials available in the following documents may be helpful when read- ing this document. Visit the EVB-LAN9646 EDS2 Daughter Card product page at www.microchip.com for the latest documentation. • LAN9646 Data Sheet •...
  • Page 11 Small Outline Dual In-line Memory Module TCXO Temperature-Compensated Crystal Oscillator TFTP Trivial File Transfer Protocol UART Universal Asynchronous Receiver/Transmitter Universal Serial Bus VDFN Very-small Dual Flat, No Leads Virtual Machine VREG Voltage Regulator Crystal oscillator  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 11...
  • Page 12 LAN9646 EDS2 Daughter Card User’s Guide NOTES:  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 12...

  • Page 13: Chapter 2. Getting Started

    Chapter 2. Getting Started OVERVIEW This chapter provides a quick start guide for using the LAN9646 EDS2 Daughter Card. The SAM9x75 Curiosity (Rev 5) serves as the host board. Refer to the SAM9X75 Curi- osity User's Guide for the correct jumper configuration.
  • Page 14 LAN9646 EDS2 Daughter Card User’s Guide Perform the following steps to install the LAN9646 EDS2 Daughter Card in the EDS2 connector: 1. Verify that the host board power is OFF. 2. To use the SFP cage, an SFP transceiver module is required. See example in Figure 2-2 and the recommended modules below.
  • Page 15 5. Grab the daughter card by its board edges. Align to SODIMM EDS2 receptacle and insert the board fingers’ edge at a 45-degree angle into the SODIMM con- nector as shown in Figure 2-5. FIGURE 2-5: LAN9646 EDS2 DAUGHTER CARD INSTALLATION  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 15...

  • Page 16: Quick Start

    QUICK START Conduct the following steps to start using the LAN9646 EDS2 Daughter Card: 1. Verify if the SW1 slide switch is set as shown in Figure 2-7.

  • Page 17: Lan9646 Eds2 Daughter Card Removal

    Getting Started LAN9646 EDS2 DAUGHTER CARD REMOVAL Complete the following procedure to remove the LAN9646 EDS2 Daughter Card from the SODIMM EDS2 receptacle: 1. Verify that the host board power is OFF. 2. Disconnect the RJ45 cables. 3. If snap locks are used, release them from the daughter card. A pair of long-nose pliers can be used to close the latch pins for easy release.
  • Page 18 LAN9646 EDS2 Daughter Card User’s Guide NOTES:  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 18...

  • Page 19: Chapter 3. Hardware

    This chapter provides a description of the LAN9646 EDS2 Daughter Card hardware, including headers, test points, LEDs, and switches on the board. The top side and bottom side of the LAN9646 EDS2 Daughter Card are shown in Figure 3-1 Figure 3-2, respectively.

  • Page 20: Connectors

    LAN9646 EDS2 Daughter Card User’s Guide FIGURE 3-2: LAN9646 EDS2 DAUGHTER CARD (BOTTOM SIDE) CONNECTORS Table 3-1 describes the connectors on the LAN9646 EDS2 Daughter Card. TABLE 3-1: LAN9646 EDS2 DAUGHTER CARD CONNECTORS Reference Designator Name Description SODIMM-260 pin Edge Con-...

  • Page 21: Test Points

    SPI Header SPI header that can be used for external “fly-wire” evaluation setups. TEST POINTS Table 3-2 lists the test points on the LAN9646 EDS2 Daughter Card. TABLE 3-2: LAN9646 EDS2 DAUGHTER CARD TEST POINTS Test Point Color Description Black...

  • Page 22: Leds

    J3B - Right RJ45 Port 4 - Right Yellow LED connected to LAN9646 LED4_0 CONFIGURATION STRAPS Table 3-4 shows the configuration straps on the LAN9646 EDS2 Daughter Card. TABLE 3-4: LAN9646 EDS2 DAUGHTER CARD CONFIGURATION STRAPS Reference Designator Name Description...

  • Page 23: Reset

    Note 1: Only one of the two PU/PD resistors is installed. * indicates default. RESET The LAN9646 EDS2 Daughter Card includes a Reset circuit using the Microchip MIC2790 Reset supervisor as shown in Figure 3-3. The system Reset signal, nSYSRE- SET, is driven from the SODIMM EDS2 host interface and is connected to the MIC2790 master Reset input MR.

  • Page 24: Clocks

    POWER The LAN9646 EDS2 Daughter Card requires 3.3V, 2.5V, and 1.2V. The EDS2 SODIMM EDS2 interface provides 3.3V, 2.5V, and VARIO (3.3V or 2.5V). An on-board Microchip MIC33153 switching regulator is used to generate the 1.2V required by the LAN9646 analog, digital core, and PLL power inputs.

  • Page 25: Lan9646 Eds2 Daughter Card Eeprom

    Hardware LAN9646 EDS2 DAUGHTER CARD EEPROM The LAN9646 EDS2 Daughter Card includes a Microchip 24AA014H EEPROM with half-array write protection (40H to 7Fh) for identification. Only some locations in the protected area starting at 40h are programmed as shown in Figure 3-4.

  • Page 26: Sfp Module Eeprom

    # i2cdump -f -y -r 0-0x7F 1 0x54 FIGURE 3-5: EEPROM DUMP 3.10 SFP MODULE EEPROM The SFP Module includes an EEPROM and can be accessed with the command: # i2cdump -f -y -r 0-0x7F 1 0x50  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 26...
  • Page 27 Hardware FIGURE 3-6: SFP MODULE EEPROM DUMP  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 27...
  • Page 28 LAN9646 EDS2 Daughter Card User’s Guide NOTES:  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 28...

  • Page 29: Chapter 4. System Boot

    LAN9646 EDS2 SYSTEM POWER-UP At this point the LAN9646 EDS2 Daughter Card should be installed in the SODIMM EDS2 connector. Perform the following steps to power up the SAM9X75 Curiosity EDS2: 1.
  • Page 30 6. Open Tera Term. Tick the Serial radial button and look for COMx:USB Serial Port. 7. COM22 is shown in Figure 4-4. Windows may assign a different port number. Click on OK.  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 30...
  • Page 31 System Boot FIGURE 4-4: TERA TERM SERIAL PORT SELECTION 8. Go to the Setup menu and select Serial port. See Figure 4-5. FIGURE 4-5: TERA TERM SETUP MENU  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 31...
  • Page 32 4-7. ® FIGURE 4-7: LINUX PING Note: For the succeeding steps, it is assumed that a host PC with an Ethernet port that can be pinged at 192.168.0.80 is available.  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 32...
  • Page 33 DSA drivers from prior existing switch models. It should display KSZ9563 or KSZ9477 depending on how the image was built. Either option is fine. See Figure 4-9. FIGURE 4-9: # DMESG | GREP -I KSZ  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 33...
  • Page 34 13. Plug an Ethernet cable into one of the RJ45 ports. Check the link status with the ip utility. One of the LAN ports shows an “Up” status indicator. See Figure 4-10. FIGURE 4-10: # IP -C LINK  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 34...
  • Page 35 24 bits for the network mask which is equivalent to 255.255.255.0. This con- figuration provides access to other devices on the 192.168.0.x addressed net- work. FIGURE 4-11: # IP -C ADDR  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 35...
  • Page 36 LAN9646 EDS2 Daughter Card User’s Guide NOTES:  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 36...

  • Page 37: Appendix A. Schematics

    LAN9646 EDS2 DAUGHTER CARD USER’S GUIDE Appendix A. Schematics INTRODUCTION This appendix shows the LAN9646 EDS2 Daughter Card schematics.  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 37...
  • Page 38 FIGURE A-1: LAN9646 EDS2 DAUGHTER CARD Table of Contents Revision History Revision Date Revision Summary Sheet Description Author Transferred from Rev A0. Table of Contents, Revision History, Block Diagram 04/05/2024 Arnaldo Cruz Fixed nets S.OUT7_P/N. LAN9646, Ethernet Ports 04/12/2024 Arnaldo Cruz Updated as per 4/26 review comments.
  • Page 39 FIGURE A-2: LAN9646 EDS2 DAUGHTER CARD ETHERNET SWITCH AND DUAL RJ45 CONNECTORS Configuration Straps PORT1 Place RXD6R resistor straps VDDIO VDDIO TRXA1_N PORT1: LOWER close to LAN9646 pins. TRD1- 0.1uF TRCT1 TRXA1_P LED1_0 TRD1+ RXD6R_3 TRXB1_N TRD2- QUIET_WIRE 430R RGMII MODE RXD6R_2 0.1uF...
  • Page 40 FIGURE A-3: LAN9646 EDS2 DAUGHTER CARD POWER Power VARIO VDDIO 220R 22uF 0.1uF 0.1uF 0.1uF Power AVDDL12 220R AVDDL VDDIO 460mA AVDDL VDDIO AVDDL VDDIO 22uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF AVDDL AVDDL AVDDL AVDDL NC_33...
  • Page 41 FIGURE A-4: LAN9646 EDS2 DAUGHTER CARD SFP CONNECTOR AND CAGE SFP MODULE Power 0603 Power 10uF 0.1uF 10uF 0.1uF 0603 10uF 0.1uF SGMII SFP SFP_TX_Fault S_OUT7_SFP_N 0.1uF S.OUT7_N SFP_TX_Disable S_OUT7_SFP_P 0.1uF S.OUT7_P SFP_SDA SFP_SCL VccT SFP_DET VccR 2, 5 GPIO_1...
  • Page 42 FIGURE A-5: LAN9646 EDS2 DAUGHTER CARD SODIMM EDS2 INTERFACE AND EEPROM RGMII_RX2 RXD3 RXD3 RXD2 RXD2 RXD1 RXD1 RXD0 RXD0 RX_CLK/RXC RX_CLK/RXC VARIO RX_CTL RX_CTL PHYID VARIO 0.1uF 24AA014H RGMII_TX 24AA014H-I/SN TX_CTL TX_CTL I2C Addr = 101_010xb VARIO x = PHYID...

  • Page 43: Appendix B. Bill Of Materials

    LAN9646 EDS2 DAUGHTER CARD USER’S GUIDE Appendix B. Bill of Materials INTRODUCTION This appendix contains the LAN9646 EDS2 Daughter Card Bill of Materials (BOM).  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 43...
  • Page 44 TABLE B-1: BILL OF MATERIALS (BOM) Manufacturer Part Item Reference Description Populated Manufacturer Number C1, C2, C3, C4, C6, C7, C8, C9, C10, CAP CER 0.1uF 35V 10% X7R SMD 0402 TDK Corporation CGA2B3X7R1V104K050BB C11, C12, C13, C14, C15, C19, C20, C21, C22, C23, C26, C27, C28, C30, C31, C32, C33, C34, C35, C36, C37, C38, C40, C41, C42, C43, C44, C45,...
  • Page 45 5004 TP18, TP28, TP29, TP30 MISC, TEST POINT MULTI PURPOSE MINI RED Keystone 5000 MCHP INTERFACE ETHERNET LAN9646 VQFN-132 Microchip Technology LAN9646-I/MXX MCHP ANALOG SUPERVISOR 0.4V to 5.5V Microchip Technology MIC2790N-04VD6 MIC2790N-04VD6 SOT-23-3 MCHP ANALOG SWITCHER Buck 0.6V to 3.6V...
  • Page 46 LAN9646 EDS2 Daughter Card User’s Guide NOTES:  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 46...

  • Page 47: Appendix C. Pcb Layers

    LAN9646 EDS2 DAUGHTER CARD USER’S GUIDE Appendix C. PCB Layers INTRODUCTION This appendix contains the LAN9646 EDS2 Daughter Card’s silkscreen top and bottom layers.  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 47...
  • Page 48 FIGURE C-1: LAN9646 EDS2 DAUGHTER CARD TOP SILK SCREEN...
  • Page 49 FIGURE C-2: LAN9646 EDS2 DAUGHTER CARD TOP LAYER...
  • Page 50 FIGURE C-3: LAN9646 EDS2 DAUGHTER CARD BOTTOM LAYER...
  • Page 51 FIGURE C-4: LAN9646 EDS2 DAUGHTER CARD BOTTOM SILK SCREEN...

  • Page 52: Worldwide Sales And Service

    Tel: 46-31-704-60-40 Tel: 631-435-6000 Sweden - Stockholm San Jose, CA Tel: 46-8-5090-4654 Tel: 408-735-9110 UK - Wokingham Tel: 408-436-4270 Tel: 44-118-921-5800 Canada - Toronto Fax: 44-118-921-5820 Tel: 905-695-1980 Fax: 905-695-2078  2024 Microchip Technology Inc. and its subsidiaries DS50003758A-page 52 04/15/24...

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