User guide
Addr Bit R/W Name Description
0x494
(SGMII
mode)
11:1
0
RW Speed[1:0]
Local device speed:
• 00: copper interface speed is 10 Mbps
• 01: copper interface speed is 100 Mbps
• 10: copper interface speed is 1 Gigabit
• 11: reserved
12 RW COPPER_DUPLEX_STATUS
Local device capability
• 1: copper interface is capable of full-duplex
operation
• 0: copper interface is capable of half-duplex
operation
Note: 1G speed does not support half-
duplex operation.
14 RO ACK Local device acknowledge. Value as specified
in IEEE 802.3z standard.
15 RW COPPER_LINK_STATUS
Local device status
• 1: copper interface link is up
• 0: copper interface link is down
0x495
(SGMII
mode)
11:1
0
RW Speed[1:0]
Link partner speed:
• 00: copper interface speed is 10 Mbps
• 01: copper interface speed is 100 Mbps
• 10: copper interface speed is 1 Gigabit
• 11: reserved
12 RW COPPER_DUPLEX_STATUS Link partner capability:
• 1: copper interface is capable of full-duplex
operation
• 0: copper interface is capable of half-duplex
operation
Note: 1G speed does not support half-
duplex operation.
14 RO ACK
Link partner acknowledge. Value as specified
in IEEE 802.3z standard.
15 RW COPPER_LINK_STATUS Link partner status:
• 1: copper interface link is up
• 0: copper interface link is down
UG-01143
2015.05.11
Arria 10 GMII PCS Registers
2-205
Implementing Protocols in Arria 10 Transceivers
Altera Corporation
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