trandom — Generates a controlled pseudo-random number series between min and max values according to a trigger.
Generates a controlled pseudo-random number series between min and max values at k-rate whenever the trigger parameter is different to 0.
ktrig -- trigger (opcode produces a new random number whenever this value is not 0.
kmin -- minimum range limit
kmax -- maximum range limit
trandom is almost identical to random opcode, except trandom updates its output with a new random value only when the ktrig argument is triggered (i.e. whenever it is not zero).