In reply to chr_sue:
A slight side topic: the uvm_reg_indirect_data.configure() expects a vector of uvm_reg.
The documentation implies that vector[N] is accessed when the indirect-address register has a value of N. I.e. there’s no way to implement a sparsely-populated indirect-address map, where there might be registers at (for example) addresses 0, 2, and 3. But no register at address 1. Have I missed anything?