Answers Database


2.1i: Floorplanner: The IBUFG placment is not verified by DRC check


Record #6164

Product Family: Software

Product Line: Merged Core

Product Part: Floorplanner

Product Version: 2.1i

Problem Title:

2.1i: Floorplanner: The IBUFG placment is not verified by DRC check


Problem Description:
Urgency: Standard

General Description:
The Floorplanner DRC does not verify the IBUFG placement.

If placed in the wrong location, MAP fails with the following:
  ERROR:xvkpu - The symbol clk.pad failed to join a blobal clock I/O
  component as required. the symbol has a constraint (LOC=B() that
specifies an illegal physical site for the component.


Solution 1:

Please refer to Virtex Datasheet for the correct IBUFG locations:

http://support.xilinx.com/partinfo/databook.htm#virtex

OR

The following information is where the IBUFGs can go per package:
CS144: K7, M7, A7, A6
TQ144: 90, 93, 19, 16
PQ240/HQ240: 92, 89, 210, 213
BG256: Y11, Y10, A10, B10
BG352: AE13, AF14, B14, D14
BG432: AL16, AK16, A16, D17
BG560 : AL17, AJ17, D17, A17
FG256: N8, R8, C9, B8
FG456: W12, Y11, A11, C11




End of Record #6164 - Last Modified: 11/19/99 13:00

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