RSENC-DBLK-SC-UT4 Lattice

Dynamic Block Reed-Solomon Encoder Users Guide August 2010 IPUG40 03.6Table of Contents Chapter 1. Introduction .......................................................................................................................... 4 Quick Facts ........................................................................................................................................................... 4 Features................................................................................................................................................................ 8 Chapter 2. Functional Description ...................................................................................................... 10 General Description ............................................................................................................................................ 10 Field Polynomial......................................................................................................................................... 11 Generator Polynomial ................................................................................................................................ 11 Shortened Codes ....................................................................................................................................... 11 Output Latency........................................................................................................................................... 11 Functional Description......................................................................................................................................... 11 Multiplier Array ........................................................................................................................................... 11 Adder Array................................................................................................................................................ 11 Remainder Array........................................................................................................................................ 12 Control........................................................................................................................................................ 12 Basis Conversion Modules......................................................................................................................... 12 Signal Descriptions ............................................................................................................................................. 12 Timing Specifications .......................................................................................................................................... 13 Chapter 3. Parameter Settings ............................................................................................................ 17 Reed-Solomon Encoder Configuration GUI........................................................................................................ 18 Core Configuration..................................................................................................................................... 18 RS Parameters........................................................................................................................................... 18 Check Symbols .......................................................................................................................................... 19 Block Size Type ......................................................................................................................................... 19 Implementation Parameters....................................................................................................................... 19 Optional Output Ports................................................................................................................................. 19 Summary............................................................................................................................................................. 20 Chapter 4. IP Core Generation............................................................................................................. 21 Licensing the IP Core.......................................................................................................................................... 21 Getting Started.................................................................................................................................................... 21 IPexpress-Created Files and Top Level Directory Structure............................................................................... 23 Instantiating the Core.......................................................................................................................................... 25 Running Functional Simulation ........................................................................................................................... 25 Synthesizing and Implementing the Core in a Top-Level Design ....................................................................... 25 Hardware Evaluation........................................................................................................................................... 26 Enabling Hardware Evaluation in Diamond:............................................................................................... 26 Enabling Hardware Evaluation in ispLEVER:............................................................................................. 26 Updating/Regenerating the IP Core .................................................................................................................... 26 Regenerating an IP Core in Diamond ........................................................................................................ 26 Regenerating an IP Core in ispLEVER ...................................................................................................... 27 Chapter 5. Support Resources ............................................................................................................ 28 Lattice Technical Support.................................................................................................................................... 28 Online Forums............................................................................................................................................ 28 Telephone Support Hotline ........................................................................................................................ 28 E-mail Support ........................................................................................................................................... 28 Local Support............................................................................................................................................. 28 Internet....................................................................................................................................................... 28 References.......................................................................................................................................................... 28 LatticeECP ........................................................................................................................................... /EC28 LatticeECP2M ............................................................................................................................................ 28 2010 Lattice Semiconductor Corp. All Lattice trademarks, registered trademarks, patents, and disclaimers are as listed at www.latticesemi.com/legal. All other brand or product names are trademarks or registered trademarks of their respective holders. The specifications and information herein are subject to change without notice. IPUG40 03.6, August 2010 2 Dynamic Block Reed-Solomon Encoder Users Guide