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AR# 31536

Architecture Wizard, XtremeDSP Slice - Why is there no option to select the BCascade Out Pipeline when using the Multiply Accumulate (MACC) Architecture Wizard?

Description

Why is there no option to select the BCascade Out Pipeline when using the Multiply Accumulate (MACC) Architecture Wizard? 

 When I use CORE Generator to generate an XtremeDSP Slice Multiply Accumulate, there is no option to set the BCASCREG option to 2, even if the BREG is set to 2.

Solution

It is a known limitation of the Architecture Wizard that the BCASREG cannot be added. 

For a list of alternative solutions to using the Architecture Wizard, see (Xilinx Answer 30101)

AR# 31536
Date Created 09/04/2008
Last Updated 08/11/2014
Status Active
Type General Article
Tools
  • ISE Design Suite