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AR# 17499

8.1i PACE - The MSB and LSB bus order are not honored in the HDL file

Description

Keywords: MSB, LSB, order

When I create a new HDL-based design containing buses, LSB is always the smaller number and MSB is always the larger number. I cannot create a bus that is bus1[3:0], because it will always be written as bus1[0:3]. When bus groups are displayed, however, they do show the correct order.

Solution

You can work around this issue by changing the order of the bus notation in the HDL file.

This should be fixed in the next major release of the design tools.
AR# 17499
Date Created 09/03/2007
Last Updated 06/17/2008
Status Archive
Type General Article