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set_fanout_load命令在DC中的解释如下:
Sets the fanout_load attribute to a specified value on specified output
ports in the current design. compile attempts to ensure that the sum
of this value, together with all fanout_load attributes for pins con-
nected to the driver that drives this port, does not exceed the driving
pin's max_fanout capability. The default fanout_load value for a port
is 0.0.
set_max_fanout命令在DC中的解释如下:
Sets the max_fanout attribute on the specified input ports and/or
designs. compile attempts to ensure that the sum of the fanout_load
attributes for input pins on nets driven by the specified ports or all
nets in the specified design is less than the given value.
求高手解答一下这两个概念是什么意思阿?看懵了已经,fanout和fanout_load有什么区别阿? |
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