WG82577LM S LGWS Intel, WG82577LM S LGWS Datasheet - Page 69
WG82577LM S LGWS
Manufacturer Part Number
WG82577LM S LGWS
Description
Manufacturer
Intel
Datasheet
1.WG82577LM_S_LGWS.pdf
(195 pages)
Specifications of WG82577LM S LGWS
Lead Free Status / RoHS Status
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Programmer’s Visible State—82577 GbE PHY
Table 31.
PHY Control Register - Address 23
15
14
13
12:10
9:8
7
6
5
4
3:2
1:0
Bits
Reserved
Reserved
LNK_EN (Link Enable)
Automatic Speed
Downshift Attempts
Before Downshift
Reserved
Link Partner Detected
Jabber (10BASE-T)
SQE (10BASE-T)
TP_LOOPBACK
(10BASE-T)
10BASE-T Preamble
Length
Reserved
Field
RO
R/W, SC
R/W
R/W
RO, LH
R/W
R/W
R/W
R/W
Type
0b
0b
X
X
0b
0b
1b
1b
0b
Default
Reserved
Reserved
If LNK_EN is set, the PHY attempts to bring
up a link with a remote partner and monitors
the MDI for link pulses. If LNK_EN is cleared,
the PHY takes down any active link, goes into
standby, and does not respond to link pulses
from a remote link partner. In standby, IP
phone detect and TDR functions are
available.
1b = Enables linking.
0b = Disables linking.
000b = 1.
001b = 2.
010b = 3.
011b = 4.
100b = 5.
101b = 6.
110b = 7.
111b = 8.
Reserved
When linking is disabled, the PHY
automatically monitors for the appearance of
a link partner and sets this bit if detected.
Linking is disabled when LNK_EN is cleared
(bit 13 = 0b).
1b = Link partner detected.
0b = Link partner not detected.
1b = Disables jabber.
0b = Normal operation.
1b = Enables heartbeat.
0b = Disables heartbeat.
1b = Disables TP loopback during half duplex.
0b = Normal operation.
00b = 10BASE-T preamble length of zero
bits.
01b = 10BASE-T preamble length of eight
bits.
1xb = Reserved.
Reserved
Description
62
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