Create 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 create either a rectangular or rectilinear region on a device.

You can create a region within a device for setting specific physical constraints or for achieving better floorplanning. You can define regions with the array coordinates for that particular device.  

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

For ProASIC PLUS and ProASIC, you can use the set_location GCF command to both create a region and constrain a 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 create a region constraint:

• PDC - define_region

• GCF - set_location

• ChipPlanner - Creating regions

See Also

Constraint entry

define_region (PDC)

set_location (GCF)

Creating regions