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Summary of Contents for Microchip Technology KSZ8795 EDS2
- Page 1 KSZ8795 EDS2 Daughter Card User Guide 2025 Microchip Technology Inc. and its subsidiaries DS50003882A...
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Page 2: Legal Notice
“Microchip” name and logo, the “M” logo, and other names, logos, and brands are registered and unregistered trademarks of Microchip Technology Incorporated or its affiliates and/or subsidiaries in the United States and/or other countries (“Microchip Trademarks”). Information regarding Microchip Trademarks can be found at https://www.microchip.com/en-us/about/legal-information/microchip-... -
Page 3: Table Of Contents
Chapter 2. Getting Started 2.1 Overview ...................... 13 2.2 KSZ8795 Installation ..................13 2.3 Quick Start ....................15 2.4 KSZ8795 EDS2 Daughter Card Removal ............ 15 Chapter 3. Hardware 3.1 Introduction ....................17 3.2 Connectors ....................18 3.3 Test Points ....................19 3.4 LEDS ...................... - Page 4 KSZ8795 EDS2 Daughter Card User Guide Appendix B. Bill of Materials B.1 Introduction ....................39 Appendix C. PCB Layers C.1 Introduction ....................43 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 4...
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Page 5: Preface
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 KSZ8795 EDS2 Daughter Card User Guide. Items discussed in this chapter include: • Document Layout •... -
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 { ... 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-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. 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-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 DS50003882A Initial release (05-30-25) 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 8... -
Page 9: Chapter 1. Overview
Chapter 1. Overview INTRODUCTION The KSZ8795 EDS2 Daughter Card is designed for evaluation of the Microchip KSZ8795CLX 10/100-Mbit Ethernet Switch when used with a Microchip EDS2 compat- ible host board. A SODIMM 260-pin connector for the EDS2 Host – KSZ8795 Interface is used due to its high performance, high pin count, and low cost. -
Page 10: Features
KSZ8795 EDS2 Daughter Card User Guide FEATURES Below are the features of the KSZ8795 EDS2 Daughter Card: • Microchip KSZ8795CLX 10/100-Mbit Ethernet Switch with RGMII/RMII • Microchip VXM7-9013-25M0000 crystal for 25 MHz • Microchip MIC2790N Reset supervisor with Reset LED indicator •... - Page 11 Small Outline Dual In-Line Memory Module TCXO Temperature-Compensated Crystal Oscillator TFTP Trivial File Transfer Protocol Universal Asynchronous Receiver/Transceiver VDFN Very-Small Dual Flat, No Leads Virtual Machine VREG Voltage Regulator Crystal Oscillator 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 11...
- Page 12 KSZ8795 EDS2 Daughter Card User Guide NOTES: 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 12...
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Page 13: Chapter 2. Getting Started
Chapter 2. Getting Started OVERVIEW This chapter provides a quick start guide for using the KSZ8795 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 KSZ8795 EDS2 Daughter Card User Guide Perform the following steps to install the KSZ8795 EDS2 Daughter Card in the SOD- IMM EDS2 connector: 1. Verify that the host board power is OFF. 2. Verify if the SW1 slide switch is set as shown in Figure 2-2.
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Page 15: Quick Start
6. Connect an Ethernet cable between the Daughter Card's RJ45 port 1 and a link partner device. QUICK START Proceed to Chapter 4. “System Boot” for instructions for using the KSZ8795 EDS2 Daughter Card. KSZ8795 EDS2 DAUGHTER CARD REMOVAL Complete the following procedure to remove the KSZ8795 from the SODIMM EDS2 receptacle: 1. - Page 16 KSZ8795 EDS2 Daughter Card User Guide NOTES: 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 16...
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Page 17: Chapter 3. Hardware
USER GUIDE Chapter 3. Hardware INTRODUCTION This chapter provides a description of the KSZ8795 EDS2 Daughter Card hardware, including headers, test points, LEDs, and switches on the board. The top side and bottom side of the KSZ8795 are shown in... -
Page 18: Connectors
KSZ8795 EDS2 Daughter Card User Guide FIGURE 3-2: KSZ8795 EDS2 DAUGHTER CARD (BOTTOM SIDE) CONNECTORS Table 3-1 describes the connectors on the KSZ8795 EDS2 Daughter Card. TABLE 3-1: KSZ8795 EDS2 DAUGHTER CARD CONNECTORS Reference Designator Name Description VDDAT Select Header... -
Page 19: Test Points
KSZ8795 LED3-1 J3B - Left RJ45 Port 4 - Left Green LED connected to KSZ8795 LED4-0 J3B - Right RJ45 Port 4 - Right Yellow LED connected to KSZ8795 LED4-1 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 19... -
Page 20: Configuration Straps
KSZ8795 EDS2 Daughter Card User Guide CONFIGURATION STRAPS Table 3-4 shows the configuration straps on the KSZ8795 EDS2 Daughter Card. TABLE 3-4: KSZ8795 CONFIGURATION STRAPS Reference Designator Name Description PU/PD R23*/R24 Gigabit Select 0 – 10/100 Mbps 1* – 1 Gbps... -
Page 21: Clocks
KSZ8795 clock reference. POWER The KSZ8795 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 PM-LV2 (AC59B05A) regulator module is used to generate the 1.2V required by the KSZ8795 analog and digital core power inputs. - Page 22 ASCII UNG board revision letter BREVD ASCII Dev Tools board revision number IDBYTE0 ID BYTE 1 = AAh IDBYTE1 ID BYTE 2 = 00h IDBYTE2 ID BYTE 3 = 00h CHECKSUM CHECKSUM =AAh 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 22...
- Page 23 Hardware The EEPROM’s contents can be read within Linux via the following command: # i2cdump -f -y -r 0-0x7F 1 0x54 FIGURE 3-5: EEPROM DUMP 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 23...
- Page 24 KSZ8795 EDS2 Daughter Card User Guide NOTES: 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 24...
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Page 25: Chapter 4. System Boot
Linux software running on the SAM9X75. The boot process for other EDS2 host platforms should be similar. The EDS2 host board should be properly configured with Linux and driver supporting the KSZ8795. Refer to the software documentation on the KSZ8795 EDS2 Daughter Card product page. - Page 26 See Figure 4-3. FIGURE 4-3: SAM9X75 CURIOSITY DC JACK, MICRO USB, AND RGB LED 6. Open Tera Term. Tick the Serial radio button and look for COMx:USB Serial Port. 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 26...
- Page 27 4-4. Windows may assign a different port number. Click on OK. 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 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 27...
- Page 28 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. 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 28...
- Page 29 System Boot 11. Verify that the KSZ8795 driver has loaded into the kernel. See Figure 4-8. FIGURE 4-8: # DMESG | GREP -I KSZ 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 29...
- Page 30 12. 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 4-9. FIGURE 4-9: # IP -C LINK 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 30...
- Page 31 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 4-10: # IP -C ADDR 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 31...
- Page 32 KSZ8795 EDS2 Daughter Card User Guide 14. Enter the following command to perform a ping test (see Figure 4-11): #ping 192.168.0.80 FIGURE 4-11: KSZ8795 EDS2 DAUGHTER CARD SYSTEM PING TEST 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 32...
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Page 33: Appendix A. Schematics
KSZ8795 EDS2 DAUGHTER CARD USER GUIDE Appendix A. Schematics INTRODUCTION This appendix shows the KSZ8795 EDS2 Daughter Card schematics. 2025 Microchip Technology Inc. and its subsidiaries DS5000XXXXA-page 33... -
Page 34: Title Page
FIGURE A-1: KSZ8795 EDS2 DAUGHTER CARD TITLE PAGE Title Page Revision History Table of Contents Revision Date Revision Summary Author Sheet Description 04/29/2024 Intial draft Alexys Antell Title Page 10/09/2024 Released with minor silk edits. Alexys Antell Power KSZ8795, Clock, and Straps... - Page 35 FIGURE A-2: KSZ8795 EDS2 DAUGHTER CARD POWER Power 1.2V Power Power Power VDD12D PM-MIC22405 220R PM_1V2 VOUT "1V2" 0.005R EN1V8 GREEN 0.1uF 0.1uF 0.1uF SGND RTRIM1V2 22uF 0.1uF 22uF 0.1uF RTRIM Vin = 2.9V - 6V Iout = 3A max...
- Page 36 FIGURE A-3: KSZ8795 EDS2 DAUGHTER CARD PHY, CLOCK, AND STRAPS KSZ8795, Clock, and Straps RGMII_TX 5[4B] TXD5_0 TXD5_0 RXP1 RX1_P 4[2A] 5[4B] TXD5_1 TXD5_1 RXM1 RX1_N 4[2B] 5[4B] TXD5_2 TXD5_2 5[4B] TXD5_3 TXD5_3 RXP2 RX2_P 4[2B] TXD5_4 RXM2 RX2_N 4[2C]...
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Page 37: Ethernet Ports
FIGURE A-4: KSZ8795 EDS2 DAUGHTER CARD ETHERNET PORTS Ethernet Ports 3[3A] RX1_P 3[3B] RX3_P 0.1uF 0.1uF 3[3A] RX1_N 3[3B] RX3_N 3[3B] TX1_P 3[3B] TX3_P 0.1uF 0.1uF 3[3B] TX1_N 3[3B] TX3_N 4X 75R 4X 75R SHLD SHLD 1000pF 1000pF 1nF,2kV 1nF,2kV... - Page 38 FIGURE A-5: KSZ8795 EDS2 DAUGHTER CARD SODIMM EDGE CONNECTOR VARIO PHYID SODIMM Edge Connector VARIO 24AA014H 0.1uF 3[2B] RXD5_CTL LABEL1 3[2B] RXC5 I2C Addr = 101_010xb [ASSY# / REV] x = PHYID SN: [SERIAL] 3[2B] RXD5_0 MDIO/MDC and SPI Configuration [DATE yyyy.mm.dd]...
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Page 39: Appendix B. Bill Of Materials
KSZ8795 EDS2 DAUGHTER CARD USER GUIDE Appendix B. Bill of Materials INTRODUCTION This appendix contains the KSZ8795 Bill of Materials (BOM). 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 39... - Page 40 TABLE B-1: BILL OF MATERIALS Item Reference Description Populated Manufacturer Manufacturer Part Number C1, C2, C3, C5, C7, C9, C10, C11, CAP CER 0.1uF 16V 10% X7R SMD 0402 KEMET C0402C104K4RACAUTO C12, C13, C14, C15, C22, C23, C24, C25, C28, C29, C30, C31 C4, C6, C35, C36, C37 CAP CER 22uF 16V 10% X5R SMD 0805 Samsung Electro-Mechanics,...
- Page 41 MISC, TEST POINT PC MINI, 0.040" D YELLOW Keystone 5004 TP3, TP5, TP7 MISC, TEST POINT MULTI PURPOSE MINI BLACK Keystone 5001 PM-LV2 Regulator PCB Module Microchip Technology AC59B05A MCHP INTERFACE ETHERNET KSZ8795CLX LQFP-80 Microchip Technology KSZ8795CLX MCHP ANALOG SUPERVISOR 0.4V to 5.5V Microchip Technology MIC2790N-04VD6...
- Page 42 KSZ8795 EDS2 Daughter Card User Guide NOTES: 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 42...
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Page 43: Appendix C. Pcb Layers
KSZ8795 EDS2 DAUGHTER CARD USER GUIDE Appendix C. PCB Layers INTRODUCTION This appendix contains the KSZ8795’s silkscreen top and bottom layers. 2025 Microchip Technology Inc. and its subsidiaries DS50003882A-page 43... - Page 44 FIGURE C-1: KSZ8795 EDS2 DAUGHTER CARD TOP SILK SCREEN...
- Page 45 FIGURE C-2: KSZ8795 EDS2 DAUGHTER CARD TOP COPPER...
- Page 46 FIGURE C-3: KSZ8795 EDS2 DAUGHTER CARD BOTTOM COPPER...
- Page 47 FIGURE C-4: KSZ8795 EDS2 DAUGHTER CARD BOTTOM SILK SCREEN...
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