User guide

Word Addr Bit R/W Name Description
0x4D6
4:0
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 affects 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.
5 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.
12:8 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.
13 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.
21:16 RW LT VPOST ovrd Override value for the VPOSTRULE parameter.
When enabled, this value substitutes for the
VPOSTRULE 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 greater than
the INITPOSTVAL parameter for proper
operation.
22 RW LT VPOST ovrd
Enable
When set to 1, enables the override value for the
VPOSTRULE parameter stored in the LT VPOST
ovrd register field.
28:24 RW LT VPre ovrd Override value for the VPRERULE parameter.
When enabled, this value substitutes for the
VPOSTRULE 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 greater than
the INITPREVAL parameter for proper operation.
29 RW LT VPre ovrd Enable When set to 1, enables the override value for the
VPRERULE parameter stored in the LT VPre
ovrd register field.
UG-01143
2015.05.11
10GBASE-KR PHY Register Definitions
2-159
Implementing Protocols in Arria 10 Transceivers
Altera Corporation
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