LAN9303 Evaluation Board User Manual Copyright 2009 SMSC or its subsidiaries. All rights reserved. Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC s standard Terms of Sale Agreement dated before the date of your order (theTerms of Sale Agreemen). The product may contain design defects or errors known as anomalies which may cause the product s functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSCs website at LAN9303 Evaluation Board User Manual 1 Introduction The LAN9303 is a full featured, three-port 10/100 managed Ethernet switch designed for embedded applications where performance, flexibility, ease of integration and system cost control are required. The LAN9303 combines all the functions of a 10/100 Ethernet switch system, including the Switch Fabric, packet buffers, Buffer Manger, MACs, PHY transceivers, and serial management. The LAN9303 complies with the IEEE 802.3 (full/half-duplex 10BASE-T and 100BASE-TX) Ethernet protocol specification and 802.1D/802.1Q management protocol specifications, enabling compatibility with industry standard Ethernet and Fast Ethernet applications. The EVB9303 is an Evaluation Board (EVB) that utilizes the LAN9303 to provide a fully functional three-port single MII/RMII/Turbo MII Ethernet switch. The EVB9303 provides two fully integrated MAC/PHY Ethernet ports (Ports 1 & 2) via on-board RJ45 connectors. Port 0 provides two MII port connectors which support the following: An external MII-/RMII-/Turbo MII-capable MAC (with LAN9303 in PHY mode), via the onboard 40- pin male MII connector An external MII-/Turbo MII-capable PHY (with LAN9303 in MAC mode), via the onboard 40-pin female MII connector The Port 0 mode of operation is configured via a single, 8-position, mode-configuration strap switch. Power is supplied to the board via a +5V external wall-mount power supply. The external supply is not necessary when Port 0 is configured for (and used in) PHY mode. In such cases, the +5V power rail is typically supplied through the MII connector from the MAC side. 2 The EVB9303 includes a 8Kx8 I C EEPROM that may be used to automatically load configuration 2 settings from the EEPROM into the device at reset, allowing the device to operate unmanaged. An I C 2 host adapter interface header (10-pin, 2x5) is provided to simplify I C based configuration. A simplified block diagram of the EVB9303 can be seen in Figure 1.1. Jumper 8K x 8 2 I C Host 2 I C Adapter I/F EEPROM To 10/100 external 40-Pin MII MAC Ethernet Ethernet Connector Port0 Port2 Magnetics & (Male) RJ45 SMSC To external LAN9303 40-Pin MII PHY 10/100 Connector Ethernet Ethernet (Female) Port1 Magnetics & RJ45 Mode Switch EVB9303 Figure 1.1 EVB9303 Block Diagram Revision 1.0 (05-28-09) USER MANUAL SMSC LAN9303 2