In addition, in MMSIM60 USR1 and later, there is now an option for transient "transres" which allows you to control this. From
spectre -h tran:
Quote:26 transres=1e-9*(stop-start) s
Transision resolution. The transient analysis
attempts to stop at beginning and end of large
transitions (ex. corners of rizing/falling edge of a
pulse). If such events occur within a time less than
transres, the analysis will combine the events into
one and stop only once. This may lead to loss of
detail.
Regards,
Andrew.