22.20.3 timer_add_stop

Adds the specified pin to the list of pins through which the paths will not be displayed in the timing analysis tool.

timer_add_stop -pin pin name

-pin pin_name

Supported Families

All

DescriptionWithout stop points, you see all paths from pad to pad in the design. If you do not want to see the paths going through register clock pins, you can specify these as stop points. The path going through the specified pins will not be displayed.

Exceptions

For ProASIC3/E, ProASIC^PLUS, ProASIC, Axcelerator, eX, and SX-A families, Microchip recommends that you use the equivalent SDC command set_false_path.

Examples

The following example adds a stop to the pin "a<2>":

timer_add_stop -pin {a<2>}

The following example adds a stop to a clock and the clear pin "reg_q_a_0_:CLR":

timer_add_stop -pin {reg_q_a_0_:CLK}

timer_add_stop -pin (reg_q_a_0_:CLR)

See Also

set_false_path (SDC false path constraint)

Tcl documentation conventions