DM9302
10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus
5.3 LED Pins
Pin No.
Pin Name
I/O
Description
Port 1 Link / Active LED
It is the combined LED of link and carrier sense signal
of the port 1.
55
LNK1_LED
O/D
56
SPD1_LED
Port 1 Speed LED
O/D
It’s low to indicate that the port 1 operates in 100M
mode. It’s floating to indicate that the port 1 operates in
10M mode.
57
58
LNK0_LED
SPD0_LED
Port 0 Link / Active LED
It is the combined LED of link and carrier sense signal
of the port 0.
O/D
O/D
Port 0 Speed LED
It’s low to indicate that the port 0 operates in 100M
mode. It’s floating to indicate that the port 0 operates in
10M mode.
5.4 Clock Interface
Pin No.
Pin Name
I/O
Description
52
53
X1
X2
I
O
Crystal 25MHz In
Crystal 25MHz Out
5.5 Network Interface
Pin No.
Pin Name
I/O
Description
34,35
TX1+/-
I/O
Port 1 TP TX
These two pins are the transmit output in MDI mode or
the receive input in MDIX mode.
Port 1 TP RX
37,38
RX1+/-
I/O
These two pins are the receive input in MDI mode or
the transmit output in MDIX mode.
Port 0 FX TX
Fiber transmitter data pair.
Port 0 FX RX
41,42
44,45
47
TX0+/-
RX0+/-
BGRES
I/O
I/O
I/O
Fiber receiver data pair.
Band gap Pin
Connect a 1.4Kohm ±1% resistor to Analog Ground
(AGND) in application.
48
49
50
Fiber Signal Detect
1.8V Voltage control
Voltage Reference
SD
VCNTL
VREF
I
I/O
O
Connect a 0.1uF capacitor to ground in application.
Preliminarydatasheet
DM9302-15-DS-P01
July 30, 2009
13
DAVICOM [ DAVICOM SEMICONDUCTOR, INC. ]
