DS125DF1610 Datasheet, PDF (39/81 Pages) Texas Instruments – 9.8 to 12.5 Gbps 16-Channel Retimer

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Address
(Hex)
Bits
24
7
6
5
4
3
2
1
0
25
7
6
5
4
3
2
1
0
26
7
6
5
4
3
2
1
0
27
7
6
5
4
3
2
1
0
DS125DF1610
SNLS482A – APRIL 2014 – REVISED DECEMBER 2015
Table 15. Channel Registers, 20 to 39 (continued)
Default
Value
(Hex)
0
Mode
RW
EEPROM
Field Name
N
FAST_EOM
0
R
N
DFE_EQ_ERROR_NO_LOCK
0
R
N
GET_HEO_VEO_ERROR_
NO_HITS
0
R
N
GET_HEO_VEO_ERROR_
NO_OPENING
0
RW
N
RESERVED
0
RWSC
N
DFE_ADAPT
0
RWSC
N
EOM_GET_HEO_VEO
0
RWSC
N
EOM_START
0
R
N
EOM_COUNT15
0
R
N
EOM_COUNT14
0
R
N
EOM_COUNT13
0
R
N
EOM_COUNT12
0
R
N
EOM_COUNT11
0
R
N
EOM_COUNT10
0
R
N
EOM_COUNT9
0
R
N
EOM_COUNT8
0
R
N
EOM_COUNT7
0
R
N
EOM_COUNT6
0
R
N
EOM_COUNT5
0
R
N
EOM_COUNT4
0
R
N
EOM_COUNT3
0
R
N
EOM_COUNT2
0
R
N
EOM_COUNT1
0
R
N
EOM_COUNT0
0
R
N
HEO7
0
R
N
HEO6
0
R
N
HEO5
0
R
N
HEO4
0
R
N
HEO3
0
R
N
HEO2
0
R
N
HEO1
0
R
N
HEO0
Description
1: Enables fast EOM mode
for fully eye capture. In this
mode the phase DAC and
voltage DAC of the EOM are
automatically incremented
through a 64 x 64 matrix.
Values for each point are
stored in channel registers
25 and 26.
DFE/CTLE SM quit due to
loss of lock
GET_HEO_VEO sees no
hits at zero crossing
GET_HEO_VEO cannot see
a vertical eye opening
1: Manually start DFE
adaption, self clearing.
0: Normal operation
1: Manually triggers a
HEO/VEO measurement.
Must be enabled with
channel register 0x23[7].
1: Starts EOM counter, self
clearing
MSBs of EOM counter
LSBs of EOM counter
HEO value, requires CDR to
be locked for valid
measurement
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