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关于 ICC中命令 derive_pg_connection,man之后如下:
一个是manual mode,一个是automatic mode; 这个如何理解呢?
比如 -tie选项,只在 manual mode下存在;可是看 -tie选项的意思时:
-tie Connects the tie-high and tie-low pins. The power and ground
network must exist prior to connecting the tie-high and tie-low
pins.
In manual mode, the tool connects the tie-off pins to the power
and ground nets specified in the -power_net and -ground_net
options, respectively.
In automatic mode, the tool connects the tie-off pins to the
为什么这个选项会有两种mode呢? |
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