参数资料
型号: WJLXT908LC.A4
厂商: CORTINA SYSTEMS INC
元件分类: 网络接口
英文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP64
封装: ROHS COMPLIANT, LQFP-64
文件页数: 19/46页
文件大小: 618K
代理商: WJLXT908LC.A4
Intel
LXT908 Universal 3.3 V 10BASE-T and AUI Transceiver
26
Datasheet
Document #: 249049
Revision #: 003
Rev. Date: 29-Oct-2005
3.2.6
AUI Encoder/Decoder Only
In the application shown in Figure 15, the DTE is connected to a coaxial network through the AUI.
AUTOSEL is tied Low and PAUI is tied High, manually selecting the AUI port. The twisted-pair
port is not used. With MD2:0 all tied Low, the Intel
LXT908 Universal 3.3 V 10BASE-T and AUI
Transceiver logic and framing are set to Mode 1 (compatible with AMD and Motorola controllers).
The LI pin is tied Low, disabling the link test function. The DSQE pin is also Low, enabling the
SQE function. The LBK input controls loopback. A 20 MHz system clock is supplied at CLKI,
with CLKO left open.
Figure 15. AUI Encoder/Decoder Only Application
LX
T
908
TXD
RBIAS
GND2
GND1
TEN
1
TCLK
RCLK
RXD
CD
COL
LBK
AUTOSEL
NTH
DSQE
LI
MD2
MD1
MD0
JAB
PLR
TX
TENA
TCLK
RCLK
RX
RENA
CLSN
LBK
Red
AM7990 BACK-END/
CONTROLLER
INTERFACE
LOOPBACK
CONTROL
PROGRAMMING
OPTIONS
MODE SELECT
LINE STATUS
1 %
GREEN
+3.3 V
LEDC/FDE
LEDR
LEDT/PDN
LEDL
VCC1
VCC2
CLKI
330
1
2
4
5
7
89
10
12
13
15
16
1
2
3
4
5
6
7
8
15
14
13
12
9
10
11
+ 12 V
CIN
CIP
DON
DOP
DIN
DIP
D
-
CO
NN
E
C
T
O
R
t
o
AU
ID
R
O
P
C
A
B
L
E
Chassis
Gnd
Fuse
78
Ω
78
Ω
78
Ω
12.4 k
Ω
CLKO
PAUI
20 MHz
Left Open
SYSTEM
CLOCK
TEST
Bias resistor RBIAS should be located close to the pin and isolated from the other signals
1
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