Assign macro to region

• Families supported

• Purpose

• Tools / How to enter

Families Supported

The following table shows which families support this constraint and which file formats and tools you can use to enter or modify it:

Purpose

Use this constraint to assign one or more macros to a specific region.

By confining macros to one area, you can keep the nets connected to that area, resulting in better timing and better floorplanning.

For ProASIC3/E and Axcelerator devices, you can use the define_region PDC command to create a region, and then use the assign_region PDC command to constrain a set of existing macros to that region.

For ProASIC PLUS and ProASIC, you can use the set_location GCF command to both create a region and constrain an existing set of macros to it at the same time. To define a region with the set_location command in a GCF file, you must specify the array coordinates for a rectangular area, for example, x1, y1, x2, y2.  

You can also use the MultiView Navigator tool to create regions for any of the supported families.

Tools /How to Enter

You can use one or more of the following commands or GUI tools to assign a macro to a region:

• PDC - assign_region

• GCF - set_location

• ChipPlanner - Assigning a macro to a region

See Also

Constraint entry

assign_region (PDC)

set_location (GCF)

Assigning a macro to a region