I have assigned some Multipliers to an area group and have defined a range constraint for the area group. When I examine the area group summary of the MAP report file (.mrp), there appears to be no range associated with the area group. Why is that?
This is strictly a reporting issue with the MAP report file. If you examine the physical constraints file (.pcf) written by MAP, you will find that the MULTIPLIER range constraint was handled successfully. The area group summary section of the MAP report reports only SLICES, TBUFs, and block RAMs at this time. This is true for Virtex-II, Virtex-II PRO, and Spartan-3 devices.
No RANGE specified for AREA_GROUP rgn1_mult
No COMPRESSION specified for AREA_GROUP rgn1_mult
After running though PLACE and ROUTE, the block MULT is being put in the correct place; however, it appears that this might just be chance.
This problem is currently scheduled to be fixed in version 8.2i.