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Table of contents


Firmware for PCB CPLD with designator U18. CPLD Device in Chain: LCMX02-256HC

Feature Summary

  • Reset
  • JTAG
  • PUD_C
  • LED

Firmware Revision and supported PCB Revision

See Document Change History

Product Specification

Port Description

Name / opt. VHD NameDirectionPinDescription
CPLD_IO / XIOin17FPGA Bank 45 P28
DONEin13FPGA Configuration DONE_0 Pin
20(currently internal DCDC Pullup is used to enable power) / currently_not_used
INIT_Bin16FPGA INIT_B / currently_not_used
JTAGMODEin26Enable JTAG access to CPLD for Firmware update (zero: JTAG routed to FPGA, one: CPLD access)
 / LED1out4green LED D1
N.C. / dummyout5dummy pin
nRST_SC0 / RESINin21B2B Reset_N
PROG_Bout12FPGA Configuration PROGRAM_B_0 Pin
23B2B JM1-32 / currently_not_used
25B2B JM1-30 / currently_not_used
27B2B JM1-28 / currently_not_used
28B2B JM1-7 / currently_not_used
TCK / M_TCKin30JTAG from B2B connector
TDI / M_TDIin32JTAG from B2B connector
TDO / M_TDOout1JTAG from B2B connector
TMS / M_TMSin29JTAG from B2B connector


Functional Description


JTAG signals routed directly through the CPLD to FPGA. Access between CPLD and FPGA can be multiplexed via JTAGEN (logical one for CPLD, logical zero for FPGA).


RESIN is connected to PROG_B.


PUD_C is set to zero.


Green LED D1.

ON1B2B Reset is set
Blinking2Done is low (FPGA not programmed)
User Defined3XIO is connected to LED

Appx. A: Change History and Legal Notices

Revision Changes

Document Change History

To get content of older revision  got to "Change History"  of this page and select older document revision number.

DateDocument RevisionCPLD Firmware RevisionSupported PCB RevisionAuthorsDescription



 REV01 REV01REV01 , Firmware released  2016-11-02


 REV01 REV01Initial release

Legal Notices

Data Privacy

Please also note our data protection declaration at

Document Warranty

The material contained in this document is provided “as is” and is subject to being changed at any time without notice. Trenz Electronic does not warrant the accuracy and completeness of the materials in this document. Further, to the maximum extent permitted by applicable law, Trenz Electronic disclaims all warranties, either express or implied, with regard to this document and any information contained herein, including but not limited to the implied warranties of merchantability, fitness for a particular purpose or non infringement of intellectual property. Trenz Electronic shall not be liable for errors or for incidental or consequential damages in connection with the furnishing, use, or performance of this document or of any information contained herein.

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Copyright Notice

No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Trenz Electronic.

Technology Licenses

The hardware / firmware / software described in this document are furnished under a license and may be used /modified / copied only in accordance with the terms of such license.

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Users of electrical and electronic equipment in private households are required not to dispose of waste electrical and electronic equipment as unsorted municipal waste and to collect such waste electrical and electronic equipment separately. By the 13 August 2005, Member States shall have ensured that systems are set up allowing final holders and distributors to return waste electrical and electronic equipment at least free of charge. Member States shall ensure the availability and accessibility of the necessary collection facilities. Separate collection is the precondition to ensure specific treatment and recycling of waste electrical and electronic equipment and is necessary to achieve the chosen level of protection of human health and the environment in the European Union. Consumers have to actively contribute to the success of such collection and the return of waste electrical and electronic equipment. Presence of hazardous substances in electrical and electronic equipment results in potential effects on the environment and human health. The symbol consisting of the crossed-out wheeled bin indicates separate collection for waste electrical and electronic equipment.

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