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AR# 18152

Spartan-3/-3E - Can I put RSDS_25 I/Os in the same bank as LVDS_25, LVDS_EXT_25, and LDT_25?

Description

Can I put RSDS_25 I/Os in the same bank as LVDS_25, LVDS_EXT_25, and LDT_25?

Solution

RSDS_25 requires a lower voltage swing, so it cannot be placed in the same bank with other differential output standards such as LVDS_25, LVDS_EXT_25, and LDT_25. A DRC check for this issue has been added. 

 

This problem has been fixed in the latest 6.1i Service Pack, available at: 

http://www.xilinx.com/xlnx/xil_sw_updates_home.jsp
The first service pack containing the fix is 6.1i Service Pack 2.

AR# 18152
Date Created 10/28/2007
Last Updated 05/16/2014
Status Archive
Type General Article