How do I LOC a specific instance to a particular SLICE?
To resolve this issue, insert the following into the User Constraints File (UCF):
INST [instance] LOC=SLICE_XnYm;
- INST is the keyword used by M1 to attach an attribute or instance.
- [instance] is the instance reference. See the Libraries Guide for a list of valid instances (such as flip-flops, FMAPs, HMAPs).
- Xn is the row number.
- Ym is the column number.
INST U45 LOC=SLICE_X5Y2;
For more information, see the Constraints Guide that is accessible from the following Web page:
For more details on timing constraints, see the Timing Constraints User Guide: http://www.xilinx.com/itp/xilinx10/books/docs/timing_constraints_ug/timing_constraints_ug.pdf