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Delays can be specified for minimum, typical, and maximum propagation times.
#(min:typ:max)
#(min:typ:max, min:typ:max)
#(min:typ:max, min:typ:max, min:typ:max)
Delays can be specified with three values for each delay. These values describe minimum, typical and maximum propagation times (Example 1).
The min:typ:max values can be any constant value.
The min:typ:max values can be specified for delay control in procedural statements (Example 2).
Example 1
assign #(1:2:3) out = in1
& in2;
assign #(1:2:3,2:3:4) b = ~a;
assign #(1:5:7,2:3:4,3:5:7)
w_or = |bus;
The min:typ:max values specified for one, two and three delay values.
Example 2
initial #(1:2:3) a = 5;
There is no relation between min, typ, and max value.
A simulation switch selects which of the three values is to be used. The default is typ.
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