task $isunknown in systemverilog

[vivek4m]

Hi People,

I have a question regarding $isunknown task of systemverilog. Can we pass multi-bit arguments to this task or it accepts only single bit variables?
Is following a valid statement:

assert !($isunknown({clk, regA[15:0], data_in, shiftr_out, varB});

Thanks & Regards
Vivek

 

[ljxpjpjljx]

i think template support multi-bit!

 

[microeric]

maybe it is valid,dont you ever verify it?