PrimeTime

1.query_objects $my_clocks 查object及collection的內容
2.printvar my_clocks 查字串及數值變數
3.restore_session
4.help restore*
man restore_session
restore_session -help
help -v restore_session
5.time unit
a.list_lib
b.report_lib cb13fs120_tsmc_max
c.report_units
6.!rep :execute the last command
7.a.get_cells *CLOCK*
b.get_nets -of_objects I_CLOCK_GEN
c.get_cells -of_objects net_sys_clk
8.get_attribute [get_clocks PCI_CLK] period
9.report_attribute -application [get_clocks PCI_CLK]
10.
a. set my_net [get_nets pclk]
b.query_objects -verbose [all_connected $mynet]
11.
a.Pre-CTS:set_clock_latency 1 [get_clocks CLK]
clock uncertainty=clock skew+clock jitter+margin
b.Post-CTS:set_propagated_clock [all_clocks]
clock uncertainty=clock jitter+margin
ps. clock skew此時已包含在clock network delay(propagated)的data arrival及data require中
12.clock uncertainty在setup time時取負值(worst case)
clock uncertainty在hold time時取正值(worst case)
13.report_timing -path full_clock~> expand clock path
14.the special paths primetime support:
a.clock path:to clock pin of sequential element
b.clock-gating path:to clock gating element
c.asynchronous path:to asynchronous set/clear pin