Versatile/LT-XC2V4000+ User Guide

Logic Tile

Table of Contents

About this document
Intended audience
Typographical conventions
Further reading
Feedback on this document
Feedback on the ARM Versatile/LT-XC2V4000+ Logic Tile
1. Introduction
1.1. About the LT-XC2V4000+ Logic Tile
1.2. Logic tile architecture
1.3. Precautions
1.3.1. Ensuring safety
1.3.2. Preventing damage
2. Getting Started
2.1. Using the Logic Tile standalone or with a motherboard
2.2. Switches and LEDs
2.2.1. Switches
2.2.2. LEDs
2.3. Using Multi-ICE or other JTAG equipment
3. Hardware Description
3.1. FPGA
3.1.1. FPGA I/O arrangement
3.1.2. JTAG and the FPGA
3.2. Header signals
3.2.1. Variable I/O levels
3.2.2. Available header pins
3.2.3. Foldover
3.3. PLD
3.4. Clock architecture
3.4.1. Onboard programmable clock generators
3.4.2. Global clock
3.4.3. Retimed clocks on multiple tiles
3.4.4. Delay-matched clock distribution (2 up/2 down)
3.5. Reset control
3.6. Memory
3.6.1. SSRAM
3.6.2. Flash memory
3.7. JTAG support
3.8. Test points
4. Configuring the FPGA and PLD
4.1. Configuration system architecture
4.1.1. PLD bytestreamer operation
4.1.2. Debug mode
4.1.3. Configuration mode
4.2. FPGA tool flow
4.2.1. Synthesis
4.2.2. Place and route
4.3. Configuring the FPGA from flash
4.3.1. Downloading new FPGA configurations into FLASH
4.4. Reconfiguring the FPGA directly
4.4.1. Using Multi-ICE
4.4.2. Using Xilinx download tools
4.5. Reprogramming the PLD
A. Pinouts and Specifications
A.1. Header connectors
A.1.1. HDRX and HDRY
A.1.2. HDRZ
A.2. Electrical specification
A.2.1. Bus interface characteristics
A.2.2. Current requirements
A.3. Mechanical details

Proprietary Notice

Words and logos marked with ® or ™ are registered trademarks or trademarks owned by ARM Limited, except as otherwise stated below in this proprietary notice. Other brands and names mentioned herein may be the trademarks of their respective owners.

Neither the whole nor any part of the information contained in, or the product described in, this document may be adapted or reproduced in any material form except with the prior written permission of the copyright holder.

The product described in this document is subject to continuous developments and improvements. All particulars of the product and its use contained in this document are given by ARM in good faith. However, all warranties implied or expressed, including but not limited to implied warranties of merchantability, or fitness for purpose, are excluded.

This document is intended only to assist the reader in the use of the product. ARM Limited shall not be liable for any loss or damage arising from the use of any information in this document, or any error or omission in such information, or any incorrect use of the product.

Confidentiality Status

This document is Non-Confidential. The right to use, copy and disclose this document may be subject to license restrictions in accordance with the terms of the agreement entered into by ARM and the party that ARM delivered this document to.

Product Status

The information in this document is final, that is for a developed product.

Conformance Notices

This section contains conformance notices.

Federal Communications Commission Notice

This device is test equipment and consequently is exempt from part 15 of the FCC Rules under section 15.103 (c).

CE Declaration of Conformity

The system should be powered down when not in use.

The Logic Tile generates, uses, and can radiate radio frequency energy and may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment causes harmful interference to radio or television reception, which can be determined by turning the equipment off or on, you are encouraged to try to correct the interference by one or more of the following measures:

  • ensure attached cables do not lie across the card

  • reorient the receiving antenna

  • increase the distance between the equipment and the receiver

  • connect the equipment into an outlet on a circuit different from that to which the receiver is connected

  • consult the dealer or an experienced radio/TV technician for help


It is recommended that wherever possible shielded interface cables be used.

Revision History
Revision ANovember 2002New document.
Revision BApril 2004Examples moved from book to CD.Updated information on fold switch.
Revision CAugust 2006Fixed reported documentation errors.
Revision DMay 2007Fixed reported documentation errors.
Revision EOctober 2007Fixed reported documentation errors.
Copyright © 2002-2007. All rights reserved.ARM DUI 0186E