Intel 82540EP/EM Network Card User Manual


 
Software Developer’s Manual 257
Register Descriptions
82541xx and 82547GI/EI Only:
Table 13-24. PHY Link Page Ability Bit Description
1
1. PHY register 8d stores the Auto-Negotiation Link Partner Received Next Pages. PHY register 5d is not used to store Next
Pages. It contains the information from the last Base Page correctly received.
Field Bit(s) Description Mode HW Rst SW Rst
Selector Field [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 4,
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 Reserved. Should be set to 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