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AR# 3470

12.1 Constraints - How do I LOC a PAD to an edge, multiple sites, or banks?

Description

How do I LOC a given PAD to a particular side of the die?

For more information, see (Xilinx Answer 3753).

解决方案

The syntax "L, R, T, B, TL, etc." is supported for PAD LOCs as follows:

NET mysig LOC = T;

To LOC a PAD to any location on a given edge or list of location, enumerate the list of IOB sites as follows:

NET mysig LOC = A2, B3, A4, B5, A6, B7;

To LOC a PAD to a bank of the device, use the BANK number as follows:

NET mysig LOC = BANK2;

Note that MAP will not accept the wild cards in the IOB site locations, so you cannot use: P?, P1?, P2?, P3?, etc., to LOC to sites P1 through P39. Instead, you must explicitly list the sites.

AR# 3470
创建日期 08/21/2007
Last Updated 05/14/2014
状态 Archive
Type 综合文章