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EVB8710 Evaluation Board User Manual
Copyright © 2010 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
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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
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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
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USER MANUAL
SMSC EVB8710
Revision 1.1 (05-24-10)

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Summary of Contents for SMSC EVB8710

  • Page 1 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 SMSC’s website at http://www.smsc.com.
  • Page 2: Pin Connector

    +1.2V supply to run the core digital logic. The EVB8710 is a PHY Evaluation Board (EVB) that interfaces a Media Independent Interface (MII) MAC controller to the LAN8710A Ethernet MII PHY via a standard 40-pin MII connector. The LAN8710A is connected to an RJ45 Ethernet jack with integrated magnetics for 10/100 connectivity.
  • Page 3: Board Details

    2.1.1 +5V Power Power is normally supplied to the EVB8710’s +3.3V regulator externally via the +5V power pins of the MII connector. If desired, the EVB8710 can be powered without +5V present on the MII connector by supplying +5V to the TP2 (red) test point with ground connected to pin 20 of the J1 header.
  • Page 4 Figure 2.1 Top View of the EVB8710 2.2.1 PHY Address Configuration The EVB8710 allows the user to configure the default PHY address at power-up via the PHYAD[2:0] configuration straps. Table 2.1 details the proper configuration required for each PHY address value.
  • Page 5: Boot Mode Configuration

    EVB8710 Evaluation Board User Manual 2.2.2 Boot Mode Configuration The EVB8710 can be configured to boot into a specific mode of operation at power-up via the MODE[2:0] configuration straps. Table 2.2 details the proper configuration required for each mode. By default, all EVB8710 MODE[2:0] straps are configured to a value of “1”.
  • Page 6: Clock Configuration

    The nINT, TXER, and TXD4 functions share a common LAN8710A pin. This pin can operate in two functional modes: nINT (Interrupt) Mode and TXER/TXD4 Mode. The nINTSEL configuration strap is used to select one of these two modes. The EVB8710 must be properly configured for each mode as follows: nINT Mode (Default EVB8710 Mode) Populate the 1-2 positions of R42 and R43 to pull-up the nINTSEL strap (nINT mode).
  • Page 7: Test Points

    EVB8710 Evaluation Board User Manual 2.2.6 LEDs Table 2.3 LEDs REFERENCE COLOR INDICATION Link/Activity LED1 Green Active when the PHY has established a valid link with a link partner and blinks when activity is detected. Speed LED2 Yellow Active when a 100BASE-TX link has been established. Inactive when a 10BASE-T link has been established or during line isolation.
  • Page 8 EVB8710 Evaluation Board User Manual Table 2.6 J1 - 2x14 MII Header Pinout HEADER HEADER DESCRIPTION DESCRIPTION nRST TXD1 MDIO (Note 2.3) TXD2 TXD3 RXD3/PHYAD2 CRS_DV/COL/MODE2 RXD2/RMIISEL RXD1/MODE1 Ground RXD0/MODE0 nINT (Note 2.4) RXDV VDDIO RXCLK/PHYAD1 +3.3V RXER/RXD4/PHYAD0 Ground TXER/TXD4 (Note 2.4)
  • Page 9: Top View

    EVB8710 Evaluation Board User Manual Note 2.5 To use the TXER signal from the MAC, the nINT/TXER/TXD4 pin and R46 must be configured properly. Refer to Section 2.2.3, "nINT/TXER/TXD4 Pin Configuration (nINTSEL)," on page 6 for additional information. 2.2.9 Switches Table 2.8 Switches...
  • Page 10 EVB8710 Evaluation Board User Manual 3 User Manual Revision History Table 3.1 Customer Revision History REVISION LEVEL & DATE SECTION/FIGURE/ENTRY CORRECTION Rev. 1.1 Entire document revised for new EVB version; consistency with latest EVB User Manual layout. (05-24-10) Rev. 1.0...
  • Page 11 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Microchip EVB8710...

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