User guide

Word
Addr
Bit R/W Name Description
0x4
D1
0 RW Restart Link
training
When set to 1, resets the 10GBASE-KR start-up protocol.
When set to 0, continues normal operation. This bit self
clears. For more information, refer to the state variable
mr_restart_training as defined in Clause 72.6.10.3.1 and
10GBASE-KR PMD control register bit (1.150.0) IEEE
802.3ap - 2007.
4 RW Updated TX Coef new When set to 1, there are new link partner coefficients
available to send. The LT logic starts sending the new
values set in 0x4D4 bits[7:0] to the remote device. When
set to 0, continues normal operation. This bit self clears.
Must enable this override in 0x4D0 bit 16.
8 RW Updated RX coef new When set to 1, new local device coefficients are available.
The LT logic changes the local TX equalizer coefficients
as specified in 0x4D4 bits[23:16]. When set to 0,
continues normal operation. This bit self clears. Must
enable the override in 0x4D0 bit17.
UG-01143
2015.05.11
Register Definitions
2-193
Implementing Protocols in Arria 10 Transceivers
Altera Corporation
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