Probe in HSpice

1. plot the top level nodes

. option  POSTLVL= N 
(N= 1--> top level, N=2--> only the second level)

or

.option POSTTOP

2.  the POSTTOP and POSTLVL options will be ignored if

.option PROBE

is also in the netlist.

[Ref]  http://www.designers-guide.org/Forum/YaBB.pl?num=1241031816