Why do I receive a 9.2.03i PAR segmentation Fault, when implementing a Virtex-5 Streaming Architecture, with larger multipliers?
This is a known problem that will be fixed in a future ISE Service Pack.
Large DSP48 Multipliers are built when the following criteria are met:
- Input width is greater than 16 bits
- Phase factor with greater than 17 bits
- Unscaled and output width greater than 18 bits
Information on how to calculate the output width can be found in the data sheet under the "Finite Word Length Considerations".