Texas Instruments DS250DF410EVM User Manual Download | Manualshive

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Software Description

17

SNLU203A – February 2016 – Revised September 2019

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Copyright © 2016–2019, Texas Instruments Incorporated

DS250DF410EVM User’s Guide

Figure 16. CDR Tab, Manual Mode Selected

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Summary of Contents for DS250DF410EVM

Page 1: ...ents These features reduce PCB routing complexity and BOM cost The advanced equalization features of the DS250DF410 include a low jitter 3 tap transmit finite impulse response FIR filter an adaptive c...

Page 2: ...e Selection Panel 6 5 Low Level Page Capture Illustrating the Different Block Select Options 7 6 Low Level Page Capture After Selecting Access to an Individual Register 7 7 Eye Monitor Page for DS250D...

Page 3: ...x as shown below The EVM has an on board 3 3V to 2 5V regulator to supply the Retimer with the required 2 5V Make sure multiple jumpers are used on header J10 Figure 1 DS250DF410EVM Showing Connection...

Page 4: ...w ti com tool sigconarchitect and download the latest version of SigCon Architect At the time this document was written the latest version of SigCon Architect is 2 0 0 4 Figure 2 Download SigCon Archi...

Page 5: ...1 Go to Device tab and choose Manage Devices 2 Click on icon and then select the DS250DF410 device model 3 Fill in the New Device Name DS250DF410 is recommended 4 Select the slave address as configure...

Page 6: ...shown below The user may click Read All to load the data in each register from the device to the Register Map The user may access the Shared Global or Channel registers via Block Select To Read a regi...

Page 7: ...2019 Submit Documentation Feedback Copyright 2016 2019 Texas Instruments Incorporated DS250DF410EVM User s Guide Figure 5 Low Level Page Capture Illustrating the Different Block Select Options Figure...

Page 8: ...or a given channel if CDR Locked is indicated The EOM_SEL_VRANGE pull down allows the user to adjust the vertical scale for eye plots The user may perform a Single Capture of eye monitor plot or selec...

Page 9: ...control settings are described in greater detail below Common Channel If this box is checked all channels receive the same configuration Different devices can receive different configurations but wit...

Page 10: ...Base Header of devices 8 Bytes device Address Header of slots 66 Bytes slot Data EEPROM Size 256 Bytes EEPROM Size 3 Bytes Base Header of devices 12 Bytes device Address Header of slots 66 Bytes slot...

Page 11: ...is independent from the others EQ Boost This field displays the Rx Continuous Time Linear Equalizer CTLE boost value as a four digit figure Each digit corresponds to one of the four CTLE stages and e...

Page 12: ...to set the DS250DF410 device to any of the four available adapt modes To do so the user should click on the desired adapt mode then click Apply to Channel to configure a specific retimer channel Alter...

Page 13: ...s Point Switch The cross point tab allows the user to easily configure the 2x2 cross point implemented for each of the adjacent channel pairs of the DS250DF410 retimer With the Pair Select pull down t...

Page 14: ...A February 2016 Revised September 2019 Submit Documentation Feedback Copyright 2016 2019 Texas Instruments Incorporated DS250DF410EVM User s Guide Figure 12 Cross Point Tab Default Mode Selected Figur...

Page 15: ...lay the mode that the retimer is currently set to along with the data rate setting and also the divider setting in the case of Manual Mode Standard Mode allows the user to program the retimer rate sub...

Page 16: ...ll then see the manual mode input fields become adjustable Select the desired divider setting from the Divider Configuration pull down Select divide by 1 when data rate 13 Gbps Select divide by 2 when...

Page 17: ...tware Description 17 SNLU203A February 2016 Revised September 2019 Submit Documentation Feedback Copyright 2016 2019 Texas Instruments Incorporated DS250DF410EVM User s Guide Figure 16 CDR Tab Manual...

Page 18: ...cursor and post cursor equalization ratios Figure 17 TX FIR Tab Upon landing on the TX FIR tab the page will display the current decimal values and polarity for the main cursor post cursor and pre cur...

Page 19: ...n the High Level page allows the user to configure the PRBS generator or Checker functions on any of the channels of the DS250DF410 retimer To enable PRBS Generator on a channel Select the desired cha...

Page 20: ...re Period Set pull down to Infinite if it desired to run extended duration test without time limit If Finite period is desired set the pull down to Finite and enter the desired test duration via the H...

Page 21: ...DR is in locked the CDR lock indicator on the page will turn green and display CDR locked 3 Check the Horizontal Eye Opening HEO and Vertical Eye Opening VEO displayed on the Device Status tab The use...

Page 22: ...mVppd Victim TX FIR C 1 4 C 0 24 C 1 3 Adapt mode 2 Adapted RX CTLE 3 0 0 0 Adapted DFE 0x14 0x2 0x1 0x2 0x0 Figure 20 SDD21 Loss Characteristic of Example Test Case Results Error count 0 BER 1E 13 Ho...

Page 23: ...There are three part numbers that TI suggests using with this EVM 1 85014420 MF53 1x8A_21MXP 21SMA 152 MXP 15 cable assembly This is a lower cost cable assembly compared to the MXP 40 but the SI perfo...

Page 24: ...it Documentation Feedback Copyright 2016 2019 Texas Instruments Incorporated Revision History Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current vers...

Page 25: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 26: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 27: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 28: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 29: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 30: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

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