SLXT973QE Cortina Systems Inc, SLXT973QE Datasheet - Page 22

• Manufacturer Part Number: SLXT973QE
• Manufacturer: Cortina Systems Inc

Specifications of SLXT973QE

• Lead Free Status / RoHS Status: Not Compliant

LXT973 Transceiver
Datasheet
249426, Revision 6.0
13 July 2007
Table 7
Cortina Systems
Per Port LED and Configuration Signal Descriptions (Sheet 2 of 2)
®
1. AI = Analog Input, AO = Analog Output, I = Input, O = Output, OD = Open Drain output,
Pin #
LXT973 10/100 Mbps Dual-Port Fast Ethernet PHY Transceiver
10
18
17
24
21
8
7
9
ST = Schmitt Triggered input, TS = Three-State-able output, SL = Slew-rate Limited output,
IP = Weak Internal Pull-up, ID = Weak Internal Pull-Down
SD_2P5V/
SPEED0
SD_2P5V/
SPEED1
DUPLEX0
DUPLEX1
FIBER_TP0
FIBER_TP1
PWRDWN0
PWRDWN1
Signal Names
Type
I
I
I
I
I
I
I
1
SD_2P5V. In fiber mode, this pin selects between 2.5 V or 3.3 V fiber
transceiver thresholds for both ports.
High = 2.5 V
Low = 3.3 V
Speed. In copper mode, this pin sets the default speed of Port 0 in
Hardware mode.
High = 100 Mbps
Low = 10 Mbps
SD_2P5V. In fiber mode, the speed of both ports defaults to
100BASE-FX. Pin 7 should be tied to ground.
Speed. In copper mode, this pin sets the default speed of Port 1 in
Hardware mode.
High = 100 Mbps
Low = 10 Mbps
Duplex. Sets the duplex setting of the port in Hardware mode. High is
full-duplex and Low is half-duplex.
Fiber/Twisted-Pair. Sets the operating state of the port in Hardware
mode. High is twisted-pair and Low is fiber.
Power-Down. When set High, this pin puts the relevant PHY into
power-down mode.
Signal Description
2.0 Signal Descriptions
Page 22