AR# 64069

UltraScale/UltraScale+ Memory IP - The Memory Byte/Bank Planner does not honor previously set PROHIBIT pins

Description

Version Found: MIG UltraScale v7.0

Version Resolved: See (Xilinx Answer 58435)

After prohibits are set on I/O pins within I/O Pin Planner, if the Memory Byte/Bank Planner is opened, the prohibit pins are not honored.

For example, if prohibits are set on I/Os within bank 46 byte 2, the Memory Byte/Bank Planner allows placement of a memory byte group to bank 46 byte 2.

No errors are generated within the Memory Bank/Byte Planner.

However, Tcl errors are generated.

Solution

Until this issue is resolved, you will need to do one of the following to work around it:

Manually ensure that memory byte lanes are not assigned to byte lanes containing prohibits.

Or

Move the memory pin(s) assigned to the prohibit location to a free I/O pin within the byte lane after closing the Memory Byte/Bank Planner.

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
58435 MIG UltraScale - IP Release Notes and Known Issues for Vivado 2014.1 and newer tool versions N/A N/A
AR# 64069
Date 01/12/2018
Status Active
Type Known Issues
Devices More Less
Tools
IP