GS6151 Datasheet, PDF (45/77 Pages) Semtech Corporation – Multi-Rate 6G UHD-SDI

Table 4-10: Arbitrary Data Checker/Input PRBS7 Checker Registers and Equivalent Re-timed
PRBS7 Checker Registers
Arbitrary Data Checker/Input PRBS7 Checker
Re-timed PRBS7 Checker
Register
EYE_MON_ENABLE
EYE_MON_ENABLE
EYE_MON_SCAN_START
EYE_MON_SCAN_START
EYE_MON_CONTROL_REG_0
EYE_MON_CONTROL_REG_0
EYE_MON_CONTROL_REG_1
EYE_MON_CONTROL_REG_1
Parameter
HORIZONTAL_EYE_MON_
ENABLE
EYE_MON_PRBS_NODATA
_SET
MANUAL_SCAN_START
AUTO_SCAN_START
CONTINUOUS_SCAN_
ENABLE
EYE_MON_SOFT_RESET
MEASUREMENT_
PREDIVIDER
SAMPLE_INTERVAL
EYE_MON_CONTROL_REG_2
MEASUREMENT_TIME
EYE_MON_CONTROL_REG_4
ERROR_THRESHOLD
EYE_MON_CONTROL_REG_5
EYE_MON_CONTROL_REG_6
EYE_MON_CONTROL_REG_6
EYE_MON_CONTROL_REG_6
EYE_MON_STATUS_REG_2
EYE_MON_STATUS_REG_2
EYE_MON_STATUS_REG_3
EYE_MON_STATUS_REG_12
MANUAL_PHASE
EYE_MON_WINDOW
EYE_MON_CLEAR
EYE_MON_FORCE_CLEAR
EYE_WIDTH
STARTING_PHASE
ERROR_COUNT
EYE_MON_PRBS_NODATA
Register
PRBS_CHK_CTRL
Parameter
PRBS_MON_ENABLE
PRBS_CHK_CTRL
PRBS_MON_NODATA_SET
PRBS_CTRL_0
PRBS_MON_MANUAL_START
PRBS_CTRL_0
PRBS_MON_AUTO_SCAN_START
PRBS_CTRL_1
PRBS_MON_CONTINUOUS_
ENABLE
PRBS_CTRL_1
PRBS_MON_SOFT_RESET
PRBS_CTRL_2
PRBS_MON_MEASUREMENT
_PREDIVIDER
PRBS_CTRL_2
PRBS_MON_SAMPLE_INTERVAL
PRBS_CTRL_3
PRBS_MON_MEASUREMENT_
TIME
PRBS_CTRL_4
PRBS_MON_PRBS_ERROR_
THRESHOLD
PRBS_CTRL_5
PRBS_MON_MANUAL_PHASE
Does Not Apply
PRBS_CTRL_6
PRBS_MON_CLEAR
PRBS_CTRL_6
PRBS_MON_FORCE_CLEAR
PRBS_STATUS_REG_0
PRBS_MON_EYE_WIDTH
PRBS_STATUS_REG_0
PRBS_MON_STARTING_PHASE
PRBS_STATUS_REG_1
PRBS_MON_ERROR_COUNT
PRBS_STATUS_REG_11
PRBS_MON_NODATA
Note: For all PRBS7 measurements two errors are counted for each error observed. The
EYE_MON_ERROR_THRESHOLD and/or PRBS_MON_ERROR_THRESHOLD values should
be adjusted appropriately to get the desired BER criteria.
4.12.3 PRBS Generator
A signal generator, capable of generating PRBS7 or clock pattern data, is integrated in
the device. The pattern generator can be clocked by external pins (DFT_CLK_IN,
DFT_CLK_IN, GS6151 only), re-timed clock from input arbitrary data or by an on-chip
open-loop VCO (default). When the on-chip VCO is selected the data rate must be
selected by programming the PRBSGEN_RATESEL bits of the PRBS_GEN_CTRL register.
GS6151
Final Data Sheet
PDS-060389
Rev.4
August 2015
www.semtech.com
45 of 77
Semtech
Proprietary & Confidential