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參數(shù)資料
| 型號： | DM9095L |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Twisted-Pair Medium Attachment Unit |
| 中文描述： | 雙絞線媒體結(jié)合單元 |
| 文件頁數(shù)： | 4/21頁 |
| 文件大小： | 625K |
| 代理商： | DM9095L |
DM9095
Twisted-Pair Medium Attachment Unit
Final
Version: DM9095-DS-F02
August 21, 2000
4
Pin Description (continued)
Pin No.
Pin Name
I/O
Description
15
LCED
O
Collision indicator. Normally off. It indicates a collision has been
detected by the MAU. It turns on the LED if a collision occurs.
16
RLED
O
Receive Indicator. Normally on. It indicates a reception from the
TP network is in progress. When LI- is disabled, RLED will turn
off if the MAU receives a packet. When LI- is enabled, RLED will
turn off as long as the link is broken.
17
XLED
O
Transmit indicator. Normally on. It indicates that a
transmiwwion onto the TP network is in progress by turning off.
18
VDD
O
+5V Power Supply
19
20
21
22
TPO+
DTPO+
DTPO-
TPO-
O
TP driver outputs. These four outputs provide the TP drivers with
pre-distortion capability. The TPO+ /TPO- outputs generate
10Mbits/s Manchester-encoded data. The DTPO+ /DTPO-
outputs are one-half bit time delayed and inverted with respect to
TPO+ /TPO-.
23
GND
-
Ground
24
MD2
I
Operation mode selection pin. Pulled high internally
25
MD1
I
Operation mode selection pin. Pulled high internally
26
27
TPI-
TPI+
I
TP Receive input. A differential receiver tied to the receive
transformer pair of the twisted-pair wire. The receive pair of the
twisted-pair medium is driven with 10Mbits/s Manchester-encoded
data.
28
VDD
O
+ 5V Power Supply
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