EVB-LAN9353 Datasheet, PDF (15/43 Pages) Microchip Technology – EVB-LAN9353 Evaluation Board User’s Guide

EVB-LAN9353
EVALUATION BOARD
USER’S GUIDE
Chapter 2. Board Details
2.1 BOARD DETAILS
The following sections describe the various board features, including jumpers, LEDs,
test points, system connections, and switches. A top view of the EVB-LAN9353 is
shown in Figure 2-1.
FIGURE 2-1:
LAN9353 BOARD REV-A
EEPROM
Strap
Mode Switch
Power
Reset
Port 1** (Female)
MII Connector
Port 1** (Male)
MII Connector
Port 0 (Female)
MII Connector
Port 0 (Male)
MII Connector
Microchip
LAN9353
Port 1**
(with integrated
magnetics & LEDs)
Port 2
(with integrated
magnetics & LEDs)
Note: Config 10: Port 1 and Port 2 both are Internal, Port 0 External.
Config 9: Only Port 2 Internal, Port 0 and Port 1 are External.
2.1.1 Power
DC 5V is applied through (J1) DC Socket, powered by a +5V external wall adapter.
switch (SW1) need to be ON position for the 5V to reach the 3.3V regulator. Glowing of
Green LED (D1) indicates successful generation of 3.3V o/p. This Power is supplied to
the LAN9353 and it has internal 1.2 V regulator which supplies power to the internal
core logic.
2.1.2 Power-on Reset
A power-on reset occurs whenever power is initially applied to the LAN9353 or if the
power is removed and reapplied to the LAN9353. This event resets all circuitry within
the LAN9353. After initial power-on, the LAN9353 can be reset by pressing the reset
switch (SW2). The reset LED D2 will assert (red) when the LAN9353 is in reset condi-
tion.
 2015 Microchip Technology Inc.
DS50002393A-page 15