Altera 40-Gbps Ethernet MAC and PHY MegaCore Function User Manual
Page 188
Word
Addr
Bit
R/W
Name
Description
0xD5
5:0
R
LT V
OD
setting
Stores the most recent V
OD
setting that LT specified using the
Transceiver Reconfiguration Controller IP core. It reflects
Link Partner commands to fine-tune the V
OD
.
12:8 R
LT Post-tap
setting
Stores the most recent post-tap setting that LT specified using
the Transceiver Reconfiguration Controller IP core. It reflects
Link Partner commands to fine-tune the TX pre-emphasis
taps.
19:16 R
LT Pre-tap
setting
Stores the most recent pre-tap setting that LT specified using
the Transceiver Reconfiguration Controller IP core. It reflects
Link Partner commands to fine-tune the TX pre-emphasis
taps.
23:20 R
RXEQ CTLE Setting
Stores the most recent CTLE setting sent to the Transceiver
Reconfiguration IP Core during RX Equalization.
25:24 R
RXEQ CTLE Mode
Stores the most recent CTLE mode that CTLE specified using
the Transceiver Reconfiguration IP Core during RX
Equalization.
27:26 R
RXEQ DFE Mode
Stores the most recent DFE setting sent to the Transceiver
Reconfiguration IP Core during RX Equalization.
0xD6
5:0
RW
LT VODMAX ovrd
Override value for the VMAXRULE parameter. When
enabled, this value substitutes for the VMAXRULE to allow
channel-by-channel override of the device settings. This only
effects the local device TX output for the channel specified.
This value must be greater than the INITMAINVAL
parameter for proper operation. Note this will also override
the PREMAINVAL parameter value.
6
RW
LT VODMAX ovrd
Enable
When set to 1, enables the override value for the
VMAXRULE parameter stored in the
LT VODMAX ovrd
register field.
13:8 RW
LT VODMin ovrd
Override value for the VODMINRULE parameter. When
enabled, this value substitutes for the VMINRULE to allow
channel-by-channel override of the device settings. This
override only effects the local device TX output for this
channel.
The value to be substituted must be less than the
INITMAINVAL parameter and greater than the
VMINRULE parameter for proper operation.
14
RW
LT VODMin ovrd
Enable
When set to 1, enables the override value for the
VODMINRULE parameter stored in the
LT VODMin ovrd
register field.
UG-01088
2014.12.15
10GBASE-KR PHY Register Definitions
C-15
10GBASE-KR Registers
Altera Corporation