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LAN8700 Evaluation Board User Manual
SMSC LAN8700
USER MANUAL
Revision 1.0 (02-23-10)
3
2 Board Details
This section includes the following EVB8700 board details:
„
Power
„
Configuration
„
Mechanicals
2.1 Power
Power is normally supplied to the EVB8700’s +3.3V regulator externally via the +5V power pins of the
MII connector. If desired, the EVB8700 can be powered w5V present on the MII connector by
sup5V to the TP2 test point with ground connected to pin 20 of header J2.
Note: Before connecting an external power supply to TP2, ensure power is not present on the MII
connector’s +5V pins. Conn5V simultaneously via the MII connector and TP2 may
result in permanent damage to the board.
2.2 Configuration
The following sub-sections describe the various board features and configuration settings. A top view
of the EVB8700 is shown in
Figure 2.1 .
Note: Though the LAN8700 supports an RMII mode of operation and/or use of an ex1.8V
regulator, the EVB8700 does not support these modes.
Figure 2.1 EVB8700 Top View
TP2
+5V
TP3
+3.3V
Female MII
Connector
Ethernet Port
(integrated LEDs)
LED1 LED2
Reset
Switch
MII
Testpoints
LAN8700