參數(shù)資料
型號： AX88790L
廠商： ASIX Electronics Corporation
英文描述： 10/100BASE 3-in-1 PCMCIA Fast Ethernet Controller
中文描述： 一個10/100Base 3合1的PCMCIA快速以太網(wǎng)控制器
文件頁數(shù)： 9/60頁
文件大?。?/td> 633K
代理商： AX88790L
ASIX ELECTRONICS CORPORATION
9
AX88790 L 3-in-1 PCMCIA Fast Ethernet Controller
2.4 10/100Mbps Twisted-Pair Interface pins group
SIGNAL
TYPE
PIN NO.
TPIP
I
70
DESCRIPTION
Received Data. Positive differential received 125M baud MLT3 or
10M baud Manchester data from magnetic.
Fiber-Optic Data Input. Positive differential received 125M baud
pseudo-ECL data from fiber transceiver.
Received Data. Negative differential received 125M baud MLT3 or
10M baud Manchester data from magnetic.
Fiber-Optic Data Input. Negative differential received 125M baud
pseudo-ECL data from fiber transceiver.
Transmit Data. Positive differential transmit 125M baud MLT3 or
10M baud Manchester data to magnetic.
Fiber-Optic Data Output. Positive differential transmit 125M baud
pseudo-ECL compatible data to fiber transceiver.
Transmit Data. Negative differential transmit 125M baud MLT3 or
10M baud Manchester data to magnetic.
Fiber-Optic Data Output. Negative differential transmit 125M baud
pseudo-ECL compatible data to fiber transceiver.
Current Setting 10Mbits/s. An external resistor 20.1k ohm is placed
from this signal to ground to set the 10Mbits/s TP driver transmit
output level.
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.
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.
TPIN
I
71
TPOP
O
88
TPON
O
87
REXT10
I
84
REXT100
I
83
REXTBS
I
74
Tab - 4 10/100Mbps Twisted-Pair Interface pins group
2.5 Built-in PHY LED indicator pins group
SIGNAL
TYPE
PIN NO.
I_ACT
or
I_FULL/COL
DESCRIPTION
O
62
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.
Speed Status: If this signal is low, it indicates 100Mbps, and if it is
high, then the speed is 10Mbps.
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.
I_SPEED
O
61
I_LINK
Or
I_LK/ACT
O
60
Tab - 5 Built-in PHY LED indicator pins group
2.6 Modem interface pins group
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