AX88796L Datasheet, PDF (13/71 Pages) ASIX Electronics Corporation – 3-in-1 Local Bus Fast Ethernet Controller

AX88796 L
3-in-1 Local Bus Fast Ethernet Controller
2.2 10/100Mbps Twisted-Pair Interface pins group
SIGNAL
TPI+
TYPE
I
PIN NO.
DESCRIPTION
70 Received Data. Positive differential received 125M baud MLT3 or
10M baud Manchester data from magnetic.
TPI-
I
71 Received Data. Negative differential received 125M baud MLT3 or
10M baud Manchester data from magnetic.
TPO+
O
88 Transmit Data. Positive differential transmit 125M baud MLT3 or
10M baud Manchester data to magnetic.
TPO-
O
87 Transmit Data. Negative differential transmit 125M baud MLT3 or
10M baud Manchester data to magnetic.
REXT10
REXT100
REXTBS
I
84 Current Setting 10Mbits/s. An external resistor 20k ohm is placed
from this signal to ground to set the 10Mbits/s TP driver transmit
output level.
I
83 Current Setting 100Mbits/s. An external resistor 2.49k ohm is placed
from this signal to ground to set the 100Mbits/s TP driver transmit
output level.
I
74 External Bias Resistor. Band Gap Reference for the Receive Channel.
Connect this signal to a 24.9k ohm +/- 1 percent resistor to ground.
The parasitic load capacitance should be less than 15 pF.
Tab - 2 10/100Mbps Twisted-Pair Interfaces pins group
2.3 Built-in PHY LED indicator pins group
SIGNAL
I_ACT
or
I_FULL/COL
I_SPEED
I_LINK
Or
I_LK/ACT
TYPE
O
O
O
PIN NO.
62
61
60
DESCRIPTION
Active Status : When I_OP is logic 1. If there is activity, transmit or
receive, on the line occurred, the output will be driven low for 0.67 sec
and then driven high at least 0.67 sec.
Full-Duplex/Collision Status. When I_OP is logic 0. If this signal is
low, it indicates full-duplex link established, and if it is high, then the
link is in half-duplex mode. When in half-duplex and collision
occurrence, the output will be driven low for 0.67 sec and driven high
at least 0.67 sec. (Current sink capacity is 6mA)
Speed Status : If this signal is low, it indicates 100Mbps, and if it is
high, then the speed is 10Mbps. (Current sink capacity is 6mA)
Link Status : When I_OP is logic 1. If this signal is low, it indicates
link, and if it is high, then the link is fail.
Link Status/Active : When I_OP is logic 0. If this signal is low, it
indicates link, and if it is high, then the link is fail. When in link status
and line activity occurrence, the output will be driven low for 0.67 sec
and driven high at least 0.67 sec. (Current sink capacity is 6mA)
Tab - 3 Built-in PHY LED indicator pins group
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ASIX ELECTRONICS CORPORATION