參數資料
型號： LXT980AHC
英文描述： LAN HUB CONTROLLER
中文描述： 局域網集線器控制器
文件頁數： 37/96頁
文件大?。?/td> 1309K
代理商： LXT980AHC
LXT980/980A Dual-Speed, 5-Port Fast Ethernet Repeater
Datasheet
37
2.5
MII Port Operation
The LXT980 MII allows a MAC or PHY to directly connect into the repeater environment. The
MII port (Port 5) can operate at either 10 or 100 Mbps. The LXT980 maintains the same statistics
for this
‘
Port
’
as it does for the other 10/100 ports (except for illegal symbols). Utilizing two
LXT980s allows the user to have a MAC interface to both the 10 and 100 Mbps segments, in
addition to providing segment statistics for both. The LXT980 does
not
provide MDIO/MDC
capability, as this is provided via the serial controller interface.
Mode and speed control is provided via PORT5_SPD and PORT5_SEL pins as listed in
Table 18
.
Table 17. IRB Signal Details
Name
Pad Type
Buffer
Pull-up
Connection Type
100 Mbps IRB Signals
IR100DAT<4:0>
Digital
Yes
No
Full
IR100CLK
Digital
Yes
1 k
Full
IR100DV
Digital, Open Drain
Yes
120
Full
IR100CFS
Analog
No
240
, 1%
91
, 1%
2
Local
IR100CFSBP
Analog
No
Stack
IR100COL
Digital
No
No
Local
IR100SNGL
Digital
No
No
Local
IR100DEN
Digital, Open Drain
N/A
1
330
Local
IR100ISO
Digital
N/A
1
No
Special
10 Mbps IRB Signals
IR10DAT
Digital, Open Drain
Yes
330
Full
IR10CLK
Digital
Yes
No
Full
IR10ENA
Digital, Open Drain
Yes
330
Full
IR10CFS
Analog
No
680
, 1%
Local
IR10CFSBP
Analog
No
330
, 1%
Stack
IR10COL
Analog
No
330
, 1%
Local
IR10COLBP
Analog
No
330
, 1%
Stack
IR10DEN
Digital, Open Drain
N/A
1
330
Local
IR10ISO
Digital
N/A
1
No
Special
1. Isolate and Driver Enable signals are provided to control an external bidirectional transceiver.
2. 91
resistors provide greater noise immunity. Systems using 91
resistors are backwards stackable with systems using
100
resistors.
相關PDF資料
PDF描述
LXT980QC LAN HUB CONTROLLER
LXT9860AHC Controller Miscellaneous - Datasheet Reference
LXT9860HC Controller Miscellaneous - Datasheet Reference
LXT9863HC LAN HUB CONTROLLER
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相關代理商/技術參數
參數描述
LXT980QC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN HUB CONTROLLER
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
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