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AR# 123

XC4000: Use NODELAY attribute to get (fast) Input FF databook speed w/o delay


To skip the delay block on the input of the IOB flip-flops in the 4000
family of devices, attach a 'NODELAY' property to the flip-flop. The
exact method of doing this will vary depending on the entry tool. See the
appropriate user's guide for more information.

AR# 123
日期 10/01/2008
状态 Archive
Type 综合文章