Uvm_reg default value

UVM
,
1

Hi,

I wrote a value in register and I want to “clear” my register in return, i.e. with its value by default.
I tried the functions reset() and get_reset(), it didn’t work.

Thanks
Juleitte

2

Hello Juliette,

let us take an example.

class some_reg extends uvm_reg;
`uvm_object_utils(some_reg)

rand uvm_reg_field flavor;

function new( string name = “some_reg” );
super.new( .name( name ), .n_bits( 1 ), .has_coverage( UVM_NO_COVERAGE ) );
endfunction: new

virtual function void build();
flavor = uvm_reg_field::type_id::create( “flavor” );
flavor.configure( .parent ( this ),
.size ( 3 ),
.lsb_pos ( 0 ),
.access ( “WO” ),
.volatile ( 0 ),
.reset ( 0 ),
.has_reset ( 1 ),
.is_rand ( 1 ),
.individually_accessible( 0 ) );
endfunction: build
endclass: some_reg

In the build function, you can basically configure the register fields, with a default values when reset.

Hope this helps.

Greetings,
Vidya Sagar