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Intel
®
82575EB Gigabit Ethernet Controller — PHY Registers
Intel
®
82575EB Gigabit Ethernet Controller 324632-003
Software Developer’s Manual and EEPROM Guide Revision: 2.1
314 January 2011
14.3.8.3 PHY Identifier Register 1 (LSB) - PHY ID 1 (02d; R)
14.3.8.4 PHY Identifier Register 2 (MSB) - PHY ID 2 (03d; R)
14.3.8.5 Auto-Negotiation Advertisement Register - ANA (04d;
R/W)
100BASE-X Half Duplex 13 1b = PHY able to perform half duplex 100BASE-X.
0b = PHY able to perform half duplex 100BASE-X.
RO 1b
100BASE-X Full Duplex 14 1b = PHY able to perform full duplex 100BASE-X.
0b = PHY not able to perform full duplex 100BASE-X.
RO 1b
100BASE-T4 15 0b = PHY not able to perform 100BASE-T4.
1b = PHY able to perform 100BASE-T4.
RO 0b
Field Bit(s) Description Mode Default
PHY ID Number 15:0 The PHY identifier composed of bits 3 through 18 of the
Organizationally Unique Identifier (OUI)
RO 02A8h
Field Bit(s) Description Mode Default
Manufacturer’s Revision
Number
3:0 4 bits containing the manufacturer’s revision number. RO 0h
Manufacturer’s Model
Number
9:4 6 bits containing the manufacturer’s part number. RO 38h
PHY ID Number 15:10 The PHY identifier composed of bits 19 through 24 of the OUI RO 00h
Field Bit(s) Description Mode Default
Selector Field 4:0 00001b = 802.3
Other combinations are reserved.
Unspecified or reserved combinations should not be
transmitted.
Note: Setting this field to a value other than 00001b can cause
auto negotiation to fail.
R/W 00001b
10Base-T 5 1b = DTE is 10BASE-T capable.
0b = DTE is not 10BASE-T capable.
R/W 1b
10Base-T Full Duplex 6 1b = DTE is 10BASE-T full duplex capable.
0b = DTE is not 10BASE-T full duplex capable.
R/W 1b
100Base-TX 7 1b = DTE is 100BASE-TX capable.
0b = DTE is not 100BASE-TX capable.
R/W 1b
1
100BASE-TX Full Duplex 8 1b = DTE is 100BASE-TX full duplex capable.
0b = DTE is not 100BASE-TX full duplex capable.
R/W 1b
1
100BASE-T4 9 0b = Not capable of 100BASE-T4.
1b = Capable of 100BASE-T4 (not supported).
R/W 0b
Field Bit(s) Description Mode Default