UVM Class Reference Manual specifies the following ::
function void set_frontdoor( uvm_reg_frontdoor ftdr,
uvm_reg_map map = null,
string fname = "",
int lineno = 0
Set a user-defined frontdoor for this register.
By default, registers are mapped linearly into the address space of the address maps that instantiate them.
If registers are accessed using a different mechanism, a user-defined access mechanism must be defined and associated with the
corresponding register abstraction class
- I am not fully clear on the above description . When should one use user-defined frontdoor ? .
- How does it differ from UVM_FRONTDOOR ?
When should I prefer using user-defined frontdoor over UVM_FRONTDOOR ?