參數(shù)資料
型號: KS8993ML
廠商: Micrel Inc
文件頁數(shù): 17/85頁
文件大小: 0K
描述: IC SWITCH 10/100 3PORT 128PQFP
標(biāo)準(zhǔn)包裝: 66
系列: *
類型: *
應(yīng)用: *
安裝類型: 表面貼裝
封裝/外殼: 128-BFQFP
供應(yīng)商設(shè)備封裝: 128-PQFP(14x20)
包裝: 散裝
配用: 576-1016-ND - BOARD EVAL FOR KS8993ML
其它名稱: 576-1015
Micrel, Inc.
KS8993M/ML/MI
April 2005
24
M9999-041205
Crossover Cable
A crossover cable connects an MDI device to another MDI device, or an MDI-X device to another MDI-X device.
The following diagram shows a typical crossover cable connection between two switches or hubs (two MDI-X
devices).
Receive Pair
Transmit Pair
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Transmit Pair
10/100 Ethernet
Media Dependent Interface
10/100 Ethernet
Media Dependent Interface
Modular Connector (RJ-45)
HUB
(Repeater or Switch)
Modular Connector (RJ-45)
HUB
(Repeater or Switch)
Crossover
Cable
Figure 2. Typical Crossover Cable Connection
Auto Negotiation
The KS8993M conforms to the auto negotiation protocol as described by the 802.3 committee. Auto negotiation
allows unshielded twisted pair (UTP) link partners to select the best common mode of operation. In auto
negotiation, the link partners advertise capabilities across the link to each other. If auto negotiation is not
supported or the link partner to the KS8993M is forced to bypass auto negotiation, then the mode is set by
observing the signal at the receiver. This is known as parallel mode because while the transmitter is sending auto
negotiation advertisements, the receiver is listening for advertisements or a fixed signal protocol.
The link setup is shown in the following flow diagram.
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