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AR# 4437

M1.4 XC3000 Map - When using pack IOB flops option, the CE net is removed.

Description

Keywords: M1, map, 3k, FDCE, pack IOB

Urgency: Standard

General Description:
In M1.4, when using the 'pack IOB flops' option, logic that generates a Clock Enable (CE) for internal logic is trimmed incorrectly.

Solution

The problem occurs when the 'pack IOB flops' option is used for 'Ouput only' or 'Input and Output'. The 'Input only' option does not cause this problem and can be used as a partial solution.

This issue is resolved in M1.5.





AR# 4437
Date Created 08/13/1998
Last Updated 05/18/1999
Status Archive
Type General Article