WG82577LM S LGWS Intel, WG82577LM S LGWS Datasheet - Page 67

• Manufacturer Part Number: WG82577LM S LGWS
• Manufacturer: Intel

Specifications of WG82577LM S LGWS

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Programmer’s Visible State—82577 GbE PHY
Table 26.
8.5.1
Table 27.
Table 28.
1. See
section 7.5
Loopback Control Register - Address 19
1. See
Loopback Mode Settings
Table 27
23, bit 13) should be set for each loopback mode. It also indicates whether the
loopback mode sets the Link Status bit and when the PHY is ready to receive data.
Loopback Bit (Register 0, Bit 14) Settings for Loopback Mode
Rx Error Counter Register - Address 20
11
10
9
8
7
6
5:1
0
15:0
Bits
Bits
for more details.
section 7.5
Rx Error Counter
Reserved
Line Driver
Remote
Reserved
External Cable
Tx Suppression
Reserved
Force Link Status
lists how the loopback bit (Register 0, bit 14) and the Link Enable bit (Register
Field
Field
for more details.
Line Driver
Loopback
All Digital
Ext Cable
Remote
MII
RO, SC
R/W
R/W
R/W
R/W
R/W
R/W
Type
Type
Bit 14 = 1b
Register 0,
0b
0b
0b
1b
1b
0x00
1
Default
Default
Yes
Yes
Yes
No
No
16-bit Rx error counter.
Note: Refer to register 18, bits 13 and 14 for error type
descriptions.
Reserved
1b = Line driver loopback enabled.
0b = Line driver loopback disabled.
1b = Remote loopback enabled.
0b = Remote loopback disabled.
Reserved
1b = External cable loopback enabled.
0b = External cable loopback disabled.
1b = Suppress Tx during all digital loopback.
0b = Do not suppress Tx during all digital loopback.
Reserved
This bit can be used to force link status operational
during MII loopback. In MII loopback, the link status
bit is not set unless force link status is used. In all
other loopback mode, the link status bit is set when
the link comes up.
1b = Forces link status operational in MII loopback.
0b = Forces link status not operational in MII
loopback.
1
Register 26, Bit 6
(Link Status Set)
Register 19, bit 0
Yes
Yes
Yes
Yes
Description
Description
PHY Ready for Data
After a few ms
Link Status
Link Status
Link Status
Never
60