UVM reg model access policy of registers

[qwerty]

Hi,

How can i get the access policy of a register? For fields its possible to get using get_access().

Is their a way to extract the "Registers" from the model with RW access policy ?

 

Thanks.

 

[tudor.timi]

A register doesn't have an access policy per se. It can have a certain level of access rights inside an address map. To get this, you have to use the get_reg_map_info(...) method of uvm_reg_map. Be aware that this method isn't part of the standard (the reference guide), but it is public inside the class (if you care about such things).

 

Here's a snippet (not tested):

uvm_reg_map_info info = my_map.get_reg_map_info(my_reg);
$display("Access rights for my_reg in my_map are ", info.rights);

[uwes]

hi,

 

registers are rather "dumb" containers of register fields and there might not be a single access policy for a register. fields (uvm_reg_fields) carry most of the functionality in UVM_REG. in order to learn the access policy of the field you can query via somefield.get_access(map). since the effective access policy depends upon the uvm_reg_map used for a potential access you may pass the relevant map into the function as well.

 

/uwe

[qwerty]

Thanks tudor, that is a nice way to get the access policy of registers if all the fields have same access policy.