Features
 
  Compliant with 3GPP Turbo Codec (3G TS 25.212 V3.2.0, 2000-03)
  No external memory or No external Interleaver
  High performance optimal LOGMAP decoder (SISO)
  Max Decoding Rate : 1.5M bps (with 5 iteration at 60 MHz clock)
  UMTS compliant Interleaver (sizes from 40 to 5114)
  Flexible I/O Configuration
  Bit accurate software simulator for easy parameterization
  Optional test board available
 
   
 
Logic Block Diagram
 
 
 
 
   
 
Core Implementation Data
 
Supported Family Device Tested CLB Slices Performance(MHz) Special Features
VirtexTM-II 2V500-5 2694 66 1 DCM, 20 BlockRam
VirtexTM-E V600E-8 2722 65 1 DLL, 63 BlockRam
 
   
 
Core Modifications
 
Parameter Description
Qsym   Quantization Bit# of Input Symbol
Qbm   Quantization Bit# of Branch Metric
Qpm   Quantization Bit# of Path Metric
Qllr   Quantization Bit# of LLR Metric
Qsw   Size fo Sliding Window
Qov   Overlap Size of Sliding Window
QinET   Quantization Bit# of E-Table Input
QoutET   Quantization Bit# of E-Table Output