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PHY Registers — Intel
®
82575EB Gigabit Ethernet Controller
324632-003 Intel
®
82575EB Gigabit Ethernet Controller
Revision: 2.1 Software Developer’s Manual and EEPROM Guide
January 2011 315
14.3.8.6 Auto-Negotiation Base Page Ability Register - (05d; R)
PAUSE 10 Advertise to Partner that Pause operation (as defined in 802.3x)
is desired.
R/W 1b
ASM_DIR 11 Advertise Asymmetric Pause direction bit. This bit is used in
conjunction with PAUSE.
R/W 1b
Reserved 12 Always read as 0b. Write to 0b for normal operation. R/W 0b
Remote Fault 13 1b = Set Remote Fault bit.
0b = Do not set Remote Fault bit.
R/W 0b
Reserved 14 Always read as 0b. Write to 0b for normal operation. R/W 0b
Next Page 15 1b = Manual control of Next Page (Software).
0b = 82575 control of Next Page (Auto).
R/W 0b
1. If EEPROM ADV10LU (word 21h, bit 3) is asserted, then the default is set to 0b; otherwise, the default is 1b.
Field Bit(s) Description Mode Default
Selector Fields[4:0] 4:0 <00001> = IEEE 802.3
Other combinations are reserved.
Unspecified or reserved combinations shall not be transmitted.
If field does not match PHY Register 04d, bits 4:0, the AN
process does not complete and no HCD is selected.
RO N/A
10BASE-T 5 1b = Link Partner is 10BASE-T capable.
0b = Link Partner is not 10BASE-T capable.
RO N/A
10BASE-T Full Duplex 6 1b = Link Partner is 10BASE-T full duplex capable.
0b = Link Partner is not 10BASE-T full duplex capable.
RO N/A
100BASE-TX 7 1b = Link Partner is 100BASE-TX capable.
0b = Link Partner is not 100BASE-TX capable.
RO N/A
100BASE-TX Full Duplex 8 1b = Link Partner is 100BASE-TX full duplex capable.
0b = Link Partner is not 100BASE-TX full duplex capable.
RO N/A
100BASE-T4 9 1b = Link Partner is 100BASE-T4 capable.
0b = Link Partner is not 100BASE-T4 capable.
RO N/A
LP Pause 10 Link Partner uses Pause Operation as defined in 802.3x. RO N/A
LP ASM_DIR 11 Asymmetric Pause Direction Bit
1b = Link Partner is capable of asymmetric pause.
0b = Link Partner is not capable of asymmetric pause.
RO N/A
Reserved 12 Always read as 0b. Write as 0b. RO 0b
Remote Fault 13 1b = Remote fault.
0b = No remote fault.
RO N/A
Acknowledge 14 1b = Link Partner has received Link Code Word from the PHY.
0b = Link Partner has not received Link Code Word from the
PHY.
RO N/A
Next Page 15 1b = Link Partner has ability to send multiple pages.
0b = Link Partner has no ability to send multiple pages.
RO N/A
Field Bit(s) Description Mode Default