KSZ8851-16MLLU TR Micrel, KSZ8851-16MLLU TR Datasheet - Page 19
KSZ8851-16MLLU TR
Manufacturer Part Number
KSZ8851-16MLLU TR
Description
Ethernet ICs Single-Port Ethernet Controller (Automotive Grade)
Manufacturer
Micrel
Datasheet
1.KSZ8851-16MLLU.pdf
(83 pages)
Specifications of KSZ8851-16MLLU TR
Rohs
yes
Product
Ethernet Controllers
Package / Case
LQFP-48
Mounting Style
SMD/SMT
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MDI/MDI-X Auto Crossover
To eliminate the need for crossover cables between similar devices, the KSZ8851-16MLL supports HP-Auto MDI/MDI-X
and IEEE 802.3u standard MDI/MDI-X auto crossover. HP-Auto MDI/MDI-X is the default.
The auto-sense function detects remote transmit and receive pairs and correctly assigns the transmit and receive pairs for
the KSZ8851-16MLL device. This feature is extremely useful when end users are unaware of cable types in addition to
saving on an additional uplink configuration connection. The auto-crossover feature can be disabled through the port
control registers. The IEEE 802.3u standard MDI and MDI-X definitions are as below:
May 2012
Micrel, Inc.
RJ45 Pins
1
2
3
6
Table 2. MDI/MDI-X Pin Definitions
MDI
Signals
TD+
RD+
TD-
RD-
19
RJ45 Pins
1
2
3
6
MDI-X
Signals
RD+
TD+
RD-
TD-
KSZ8851-16MLL/MLLI
M9999-050112-2.1
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