MC-ACT-RSENC-NET Datasheet, PDF (1/5 Pages) Actel Corporation – Reed-Solomon Encoder

MC-ACT-RSENC
April 24, 2003
Reed-Solomon Encoder
Datasheet v1.1
MemecCore^TM Product Line
3721 Valley Centre Drive
San Diego, CA 92130 USA
Americas:
[phone]
Europe:
[phone]
Asia:
+(852) 2410 2720
E-mail: [e-mail]
URL: www.memecdesign.com/actel
Product Summary
Intended Use
• Data communication channels
• DTV/HDTV broadcast
• Data storage systems
• Satellite communications
Key Features
• Core design is customized using the following specs
o Primitive polynomial
o Generator polynomial
o Number of parity symbols
o Symbol size
o Symbol clock rate
o System clock rates
• Message Block length configured by end user
• Continuous or burst mode operation
• Supports high speed applications (>900Mbps)
• Simple core interface for ease of integration
• Encoder available with or without Variable Parity Check Bytes
Targeted Devices
• Axcelerator Family
• ProASIC^PLUS Family
General Description
Reed-Solomon coding is a method of forward error correction in the form of block coding. Block coding consists of
calculating a number of parity symbols over a number of message symbols. The parity symbols are appended to
the end of the message symbols forming a codeword. Reed-Solomon coding is described in the form RS(n,k),
where k is the number of message symbols in each block and n is the total number of symbols in the codeword.
The value t defines the number of symbols that can be corrected by the Reed-Solomon code, where t=(n-k)/2 and
the number of parity symbols is equal to 2t.
April 24, 2003
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