LAN8700 Datasheet, PDF (64/74 Pages) SMSC Corporation – ±15kV ESD Protected MII/RMII Fast-Ethernet PHY with HP Auto-MDIX and SMSC flexPWR TM in a Small Footprint

LAN8700/LAN8700i
8.2 Magnetics Selection
For a list of magnetics selected to operate with the Microchip LAN8700, please refer to the Application note “AN 8-13
Suggested Magnetics”.
http://ww1.microchip.com/downloads/en/appnotes/en562793.pdf
8.3 Application Notes
Application examples are given in pdf format on the Microchip LAN8700 web site. The link to the web site is shown
below.
http://www.microchip.com/wwwproducts/en/LAN8700
Please check the web site periodically for the latest updates.
8.4 Reference Designs
The LAN8700 Reference designs are available on the Microchip LAN8700 web site link below.
http://www.microchip.com/wwwproducts/en/LAN8700
The reference designs are available in four variations:
a) MII with +3.3V IO
b) RMII with +3.3V IO
c) MII with +1.8V IO
d) RMII with +1.8V IO.
Features
• Industrial temperature PHY and Magnetics
• 8 pin SOIC for user configurable Magnetics
• On board LED indicators for Speed 100
• Full Duplex
• RJ-45 Connector LEDs for Link and Activity
• Interfaces Through 40-pin Connector as Defined in the MII Specification
• Powered by 5.0V from the 40-Pin MII Connector
• Standard RJ45 Connector with LED indicators for Link and Activity
• Includes Probe Points on All MII Data and Control Signals for Troubleshooting
• Includes 25MHz Crystal for Internal PHY Reference; RX_CLK is Supplied to the 40-Pin Connector
• Supports user configuration options including PHY address selection
• Integrated 3.3V Regulator
Applications
The EVB8700 Evaluation board simplifies the process of testing and evaluating an Ethernet Connection in your appli-
cation. The LAN8700 device is installed on the EVB board and all associated circuitry is included, along with all config-
uration options.
The Benefits of adding an external MII interface are:
• Easier system and software development
• Verify MAC to PHY interface
• Support testing of FPGA implementations of MAC
• Assist interoperability test of various networks
• Verify MII compliance
• Verify performance of HP AutoMDIX feature
• Verify Variable IO compliance
DS00002260A-page 64
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