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AR# 12043

4.1i XPLA3 CPLDFit - The Port Enable pin is incorrectly declared as a "No Connect" in the report file


Keywords: 4.1i, CPLDFit, CoolRunner, Port Enable, report

Urgency: Standard

General Description:
The report file incorrectly describes the Port Enable pin as a "No Connect".


The proper usage of the Port Enable pin is fully described in the data sheet. Under no circumstances should it be floating -- this could prevent the device from powering up properly.

For more information about the Port Enable pin, please see (Xilinx Answer 8455) or the CoolRunner XPLA3 family data sheet, which is available at:

This problem is fixed in the latest 4.1i Service Pack, available at:
The first service pack containing the fix is 4.1i Service Pack 2.
AR# 12043
Date Created 07/24/2001
Last Updated 08/05/2003
Status Archive
Type General Article