Vendor: Lattice Semiconductor Corp. Category: Channel Coding

Dynamic Block Reed-Solomon Encoder

Reed-Solomon codes are used to perform Forward Error Correction (FEC).

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Overview

Reed-Solomon codes are used to perform Forward Error Correction (FEC). FEC introduces controlled redundancy in the data before it is transmitted to allow error correction at the receiver. The redundant data (check symbols) are transmitted with the original data to the receiver. A Reed-Solomon Decoder is used in the receiver to correct any transmission errors. This type of error correction is widely used in data communications applications such as Digital Video Broadcast (DVB) and Optical Carriers (i.e. OC-192).

Reed-Solomon codes are written in the format RS(n,k) where k is the number of information symbols and n is the total number of symbols in a codeword or block. Each symbol in the codeword is wsymb bits wide. The first k symbols in the Reed-Solomon Encoder output are information symbols and the last n-k symbols are check symbols. This type of encoder, where the information symbols are unchanged and are followed by check symbols in the output, is called a systematic encoder. The figure below illustrates the operation of a systematic encoder.

Key features

  • 3- to 12-bit Symbol Width
  • Configurable Field Polynomial
  • Configurable Generator Polynomial: Starting Root and Root Spacing
  • User-defined Codewords
    • Maximum of 4095 symbols
    • Maximum of 256 check symbols
    • Shortened codes
  • Selectable Reed-Solomon Standards
    • OC-192
    • DVB
    • CCSDS
    • ATSC
    • IEEE 802.16-2004 WirelessMAN-SCa/OFDM
    • IEEE 802.16-2004 WirelessMAN-SC
  • Fully Synchronous
  • Registered Input Selection
  • Systematic Encoder
  • Full Handshaking Capability
  • Dynamically Variable Block Size
  • Dynamically Variable Check Symbols
  • Dynamically Variable Check Symbols Puncturing

Block Diagram

RSENC-DBLK block diagram

Specifications

Identity

Part Number
RSENC-DBLK
Vendor
Lattice Semiconductor Corp.
Type
Silicon IP

Files

Product Sheet Download

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Provider

Contact Lattice Semiconductor Corp.

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Frequently asked questions about Channel Coding IP cores

What is Dynamic Block Reed-Solomon Encoder?

Dynamic Block Reed-Solomon Encoder is a Channel Coding IP core from Lattice Semiconductor Corp. listed on Semi IP Hub.

How should engineers evaluate this Channel Coding?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this Channel Coding IP.

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