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AR# 16630

5.1i CPLD CoolRunner-II Hprep6 - The JEDEC file does not terminate unused I/Os (high quiescent current)

Description

Urgency: Hot 

 

General Description:  

In 5.1i with Service Pack 3, the CPLD JEDEC file generator (Hprep6) assigns unused pins to float regardless of the termination setting in the ISE GUI. If I terminate unused pins to a keeper or pull-up in the GUI or command line (cpldfit), Hprep6 still leaves the unused pins floating.

Solution

This problem is due to a bug that was introduced in 5.1i Service Pack 3. 

 

This problem is fixed in the latest 5.2i Service Pack available at: 

http://support.xilinx.com/xlnx/xil_sw_updates_home.jsp
The first service pack containing the fix is 5.2i Service Pack 2.

AR# 16630
Date Created 09/03/2007
Last Updated 05/08/2014
Status Archive
Type General Article