User guide

Addr Bit R/W Name Description
0x495
(1000BA
SE-X
mode)
5
R FD Full-duplex mode enable for the link partner.
This bit must be 1 because only full duplex is
supported.
6 R HD Half-duplex mode enable for the link partner.
A value of 1 indicates support for half duplex.
This bit must be 0 because half-duplex mode is
not supported.
8:7 R PS2,PS1 Specifies pause support for link partner. The
following encodings are defined for PS1/PS2:
• PS1=0 / PS2=0: Pause is not supported
• PS1=0 / PS2=1: Asymmetric pause toward
link partner
• PS1=1 / PS2=0: Symmetric pause
• PS1=1/ PS2=1: Pause is supported on TX
and RX
13:1
2
R RF2,RF1 Remote fault condition for link partner. The
following encodings are defined for RF1/RF2:
• RF1=0 / RF2=0: No error, link is valid
(reset condition)
• RF1=0 / RF2=1: Offline
• RF1=1 / RF2=0: Failure condition
• RF1=1 / RF2=1: AN error
14 R ACK Acknowledge for link partner. A value of 1
indicates that the device has received three
consecutive matching ability values from its
link partner.
15 R NP Next page. In link partner register. When set
to 0, the link partner has a Next Page to send.
When set to 1, the link partner does not send a
Next Page. Next Page is not supported in AN.
2-204
Arria 10 GMII PCS Registers
UG-01143
2015.05.11
Altera Corporation
Implementing Protocols in Arria 10 Transceivers
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