KSZ8893MQL AM TR Micrel Inc, KSZ8893MQL AM TR Datasheet - Page 32
![no-image](/images/manufacturer_photos/0/4/434/micrel_inc_sml.jpg)
KSZ8893MQL AM TR
Manufacturer Part Number
KSZ8893MQL AM TR
Description
2+1 Port 10/100 Switch W/Tranceivers & Frame Buffers, 128-Ld PQFP ( )
Manufacturer
Micrel Inc
Datasheet
1.KSZ8893MQL_AM_TR.pdf
(116 pages)
Specifications of KSZ8893MQL AM TR
Lead Free Status / RoHS Status
Supplier Unconfirmed
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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).
Auto-Negotiation
The KSZ8893MQL/MBL conforms to the auto-negotiation protocol, defined in Clause 28 of the IEEE 802.3u
specification.
Auto-negotiation allows unshielded twisted pair (UTP) link partners to select the best common mode of operation.
In auto-negotiation, link partners advertise their capabilities across the link to each other. If auto-negotiation is not
supported or the KSZ8893MQL/MBL link partner is forced to bypass auto-negotiation, the KSZ8893MQL/MBL
sets its operating mode by observing the signal at its receiver. This is known as parallel detection, and allows the
KSZ8893MQL/MBL to establish link by listening for a fixed signal protocol in the absence of auto-negotiation
advertisement protocol.
The link up process is shown in the following flow diagram.
December 2007
Media Dependent Interface
Modular Connector (RJ-45)
Transmit Pair
Receive Pair
(Repeater or Switch)
10/100 Ethernet
HUB
Figure 2. Typical Crossover Cable Connection
1
2
3
4
5
6
7
8
Crossover
Cable
32
Media Dependent Interface
Modular Connector (RJ-45)
(Repeater or Switch)
1
2
3
4
5
6
7
8
10/100 Ethernet
Transmit Pair
HUB
Receive Pair
M9999-121007-1.5
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