KSZ8841-16 Micrel Semiconductor, KSZ8841-16 Datasheet - Page 25
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KSZ8841-16
Manufacturer Part Number
KSZ8841-16
Description
Single-port Ethernet Mac Controller With Non-pci Interface
Manufacturer
Micrel Semiconductor
Datasheet
1.KSZ8841-16.pdf
(97 pages)
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Auto Negotiation
The KSZ8841M conforms to the
operate at either 10Base-T or 100Base-TX.
Auto negotiation allows unshielded twisted pair (UTP) link partners
negotiation, the link partners advertise c
link partner to the KSZ8841M is forced to
This is known as parallel mode becaus
listening for advertisements or a fixed signal
The link setup is
November 2005
Micrel Confidential
shown in the following flow diagram (Figure 8).
B y p a s s A u t o N e g o t i a t i o n
Start Auto Negotiation
Force Link Setting
and Set Link Mode
YES
auto negoti ion proto
NO
e w
ap
bypass
abilities a
hile the t
Attempt Auto
Negotiation
protocol.
Figure 8. Auto Negotiation and Parallel Operation
at
auto
ransm
cross
negotiation,
25
col
the link t
itter is s
Listen for 100BASE-TX
as describe by the 8
Link Mode Set ?
Link Mode Set
Operation
Join Flow
Parallel
Idles
end
o e
the mode is set by observing the signal at the receiver.
to
YES
ach othe
ing auto
select th
d
NO
r. If a
e bes
nego
Listen for 10BASE-T L i n k
uto negotiation is not supported or the
tiation advertisements, the receiver is
t common mode of operation. In auto
02.3 committee to allow the port to
Pulse s
KSZ8841-16/32 MQL/MVL
Rev 1.3