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Hi, In rtl design, I have a wire [3:0] d signal. It's assigned with 4 signals declared as reg type. So my question is when I try to add hdl path slice for d what should I do? I tried to add each of the four signals as slices, then in the test backdoor write to d has problem, I can't seem to pass wdata well. Ex: env. rm. d. write(...UVM_BACKDOOR) doesn't work. The d is a register naming which I create a uvm reg for it. Any input is appreciated.