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參數(shù)資料
| 型號(hào)： | LXT905 |
| 廠商： | Digital Data Communications GmbH |
| 英文描述： | Universal Ethernet Interface Adapter |
| 中文描述： | 通用以太網(wǎng)接口適配器 |
| 文件頁數(shù)： | 4/26頁 |
| 文件大?。?/td> | 673K |
| 代理商： | LXT905 |
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Full Duplex Enable
LEDC
is an open drain driver for the collision indicator pulls Low during
collision. LED “on” (
i.e.
, Low output) time is extended by approximately
100 ms.
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LED Receive
Open drain driver for the receive indicator LED. LED
“on” (
i.e.
, Low output) time is extended by approximately 100 ms. Output
is pulled Low during receive. Pulled High internally.
LED Link
Open drain driver for link integrity indicator. Output is pulled
Low during link test pass. Pulled High internally.
Carrier Detect
An output for notifying the controller that activity exists
on the network.
Receive Clock
A recovered 10 MHz clock which is synchronous to the
received data and connected to the controller receive clock input.
Receive Data
Output signal connected directly to the receive data input
of the controller.
Link Enable
Controls link integrity test; enabled when LI is High, dis-
abled when LI is Low.
Bias Circuitry
A 7.5 k
1% resistor to ground at this pin controls operat-
ing circuit bias.
SQE Disable
When DSQE is High, the SQE function is disabled.
When DSQE is Low, the SQE function is enabled. SQE should be dis-
abled for normal operation in Hub/Switch/Repeater applications. Pulled
Low internally.
Twisted Pair Outputs
Differential outputs to the twisted-pair cable. The
outputs are pre-equalized.
Mode Select 0
DQG ì
Mode select pins determine controller compatibility
mode in accordance with Table 2. Pulled Low internally.
Twisted-Pair
,QSXWV
A differential input pair from the twisted-pair cable.
Receive filter is integrated on-chip. No external filters are required.
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