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參數(shù)資料
| 型號： | LXT980QC |
| 英文描述： | LAN HUB CONTROLLER |
| 中文描述： | 局域網(wǎng)集線器控制器 |
| 文件頁數(shù)： | 15/96頁 |
| 文件大?。?/td> | 1309K |
| 代理商： | LXT980QC |
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LXT980/980A Dual-Speed, 5-Port Fast Ethernet Repeater
Datasheet
15
Table 5. Twisted-Pair Port Signal Descriptions
Pin
Symbol
Type
Description
149, 151
136, 138
121, 123
108, 110
TPOP1, TPON1
TPOP2, TPON2
TPOP3, TPON3
TPOP4, TPON4
Analog
Output
Twisted-Pair Outputs - Ports 1 through 4.
These pins are the positive and
negative outputs from the respective ports
’
twisted-pair line drivers. These pins
can be left open when not used.
146, 147
133, 134
118, 119
105, 106
TPIP1, TPIN1
TPIP2, TPIN2
TPIP3, TPIN3
TPIP4, TPIN4
Analog
Input
Twisted-Pair Inputs - Ports 1 through 4.
These pins are the positive and
negative inputs to the respective ports
’
twisted-pair receivers. These pins can be
left open when not used.
Table 6. Fiber Port Signal Descriptions
Pin
Symbol
Type
Description
153, 154
140, 141
125, 126
112, 113
FIBOP1, FIBON1
FIBOP2, FIBON2
FIBOP3, FIBON3
FIBOP4, FIBON4
PECL Output
Fiber Outputs - Ports 1 through 4.
These pins are the positive and
negative outputs from the respective ports
’
PECL drivers. These pins can be
left open when not used.
157, 156
144, 143
129, 128
116, 115
FIBIP1, FIBIN1
FIBIP2, FIBIN2
FIBIP3, FIBIN3
FIBIP4, FIBIN4
PECL Input
Fiber Inputs - Ports 1 through 4.
These pins are the positive and negative
inputs to the respective ports
’
PECL receivers. These pins can be left open
when not used.
155
142
127
114
SIGDET1
SIGDET2
SIGDET3
SIGDET4
PECL Input
Signal Detect - Ports 1 through 4.
Signal detect for the fiber ports. These
pins can be left open when not used.
Table 7. Serial Management Interface Signal Descriptions
Pin
Symbol
Type
1
Description
58
RECONFIG
TTL Input PD,
NC
Reconfigure
. This input controls the driving of the clock signal on the high-speed
Serial Management Interface (SERCLK). When this input is High, the LXT980
drives SERCLK with a 625 kHz output. When this input is Low, SERCLK is an input
to the LXT980. In addition, a Low-to-High transition on RECONFIG causes the
LXT980 to drive 13 continuous 0s on the SMI, causing a re-arbitration to occur.
62
SER_MATCH
TTL Output
Serial Match.
The LXT980 device with ChipID = 0 asserts this active High output
whenever it detects a message on the SMI that matches the local Hub ID. Refer to
Figure 11 on page 43
.
59
SRX
TTL Input, PD
Serial Receive.
Receive data input for high-speed serial management interface.
Must be tied to STX externally. SRX is sampled on the rising edge of SERCLK.
1. NC = No Clamp. Pad will not clamp input in the absence of power.
PU = Input contains pull-up.
PD = Input contains pull-down
OD = Open Drain
TTL = Transistor-Transistor Logic.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LXT9860AHC | Controller Miscellaneous - Datasheet Reference |
| LXT9860HC | Controller Miscellaneous - Datasheet Reference |
| LXT9863HC | LAN HUB CONTROLLER |
| LXT9880AGE | Controller Miscellaneous - Datasheet Reference |
| LXT9880AHC | Controller Miscellaneous - Datasheet Reference |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LXT9860 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Advanced 10/100 Repeater with Intergrated Management |
| LXT9860AHC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
| LXT9860HC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
| LXT9863 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Advanced 10/100 Umnmanaged Repeater |
| LXT9863HC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN HUB CONTROLLER |
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