GS6151 Datasheet, PDF (61/77 Pages) Semtech Corporation – Multi-Rate 6G UHD-SDI

Table 5-1: Register Descriptions - Standard Address Space (Continued)
Address Register Name Parameter Name
EYE_MON_
27_h
CONTROL_
MEASUREMENT_TIME
REG_2
28_h
EYE_MON_
CONTROL_
REG_3
EYE_MON_PRBS_ERROR_
THRESHOLD
EYE_MON_
29_h
CONTROL_
REG_4
ERROR_THRESHOLD
EYE_MON_
2A_h
CONTROL_
REG_5
MANUAL_PHASE
RSVD
Bit
Slice
R/W
Reset
Value
Description
Selects measurement interval in multiples of
SAMPLE_INTERVAL_PREDIVIDER cycles.
The measurement time for a single phase
and bypass setting is:
MEASUREMENT_PREDIVIDER x
15:0 RW A8B_h ^{(MEASUREMENT_TIME + 1) x (1/108MHz)}
The default value sets 100μs per sample,
which is approximately 25.6ms for a full scan
of 128 phases * 2 bypass settings.
The maximum MEASUREMENT_TIME value
results in a full scan taking approximately
1.25 seconds.
15:0 RW
Error count threshold for pass/fail. The
phase being tested is considered to pass if
EYE_MON_PRBS_ERROR_COUNT is less than
or equal to
EYE_MON_PRBS_ERROR_THRESHOLD. The
phase fails if the
3_h EYE_MON_PRBS_ERROR_COUNT exceeds
EYE_MON_PRBS_ERROR_THRESHOLD. The
default value of
EYE_MON_PRBS_ERROR_THRESHOLD
corresponds to a bit error rate of 3.37x10-6
at a data rate of 5.94Gb/s using the default
MEASUREMENT_TIME of 100μs.
15:0 RW
Error count threshold for pass/fail. The
phase being tested is considered to pass if
ERROR_COUNT is less than or equal to
ERROR_THRESHOLD. The phase fails if the
ERROR_COUNT exceeds
3_{h ERROR_THRESHOLD.}
The default value of ERROR_THRESHOLD
corresponds to a bit error rate of 6.73x10-6
at a data rate of 5.94Gb/s using the default
MEASUREMENT_TIME of 100μs.
10:4 RW
Phase setting for manually timed
0_h
(MANUAL_SCAN_START) and continuous
(CONTINUOUS_SCAN_ENABLE) scan
measurements.
3:0 RW 3_h Reserved. Do not change.
GS6151
Final Data Sheet
PDS-060389
Rev.4
August 2015
www.semtech.com
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