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AR# 5470

M1.5i Floorplanner - I am unable to move a carry chain counter that has been placed against the edge of the die.

Description

Keywords: Floorplanner, carry chain, counter, CY4, illegal placement

Urgency: Standard

General Description:
PAR has the ability to wrap the carry chain from one column to another when the top of one column has been reached. If you select "Replace All with Placement" in Floorplanner, this wrapping will be copied from the Placement window to the Floorplan window. If you then move the carry chain, this will cause a misalignment.

An example DRC error is:
"The CY4s L1/carry14/carry16 CINtF are misaligned."

Solution

To resolve this DRC error, select the carry chain and press the delete key. This will unplace the carry chain from the Floorplan window. Then, select the carry chain from the "Hierarchy" window, and place it in the Floorplan window.
AR# 5470
Date Created 08/31/2007
Last Updated 07/09/2001
Status Archive
Type ??????