Change name in the outputs of modport of an interface

UVM
1

Hi All,

Lets assume i have an interface with have inside it data1[7:0] and data2[15:0]

and i want to write 2 modports. in 1 the output will be data1 (and will be called data) and the other modport will have for output the data2 (and will call it data).

how can i somehow make it ?

Thanks !

2

In reply to snognogt:

You use modport expressions for this. This is similar to Verilog’s port expression where you can name a port different from the signal it is connected to.


interface itf;

  bit [7:0] data1;
  bit [15:0] data2;
  modport mod1(output .data(data1));
  modport mod2(output .data(data2));
endinterface 
module m(itf ip);
   initial $display("%m %h",ip.data);
endmodule 
module top;
   itf if1();
   m m1(if1.mod1);
   m m2(if1.mod2);
   // need separate virtual interface variables because data cannot be dynamically typed
   virtual itf.mod1 v1 = if1;
   virtual itf.mod2 v2 = if1;
   initial $displayh(v1.data);
   initial $displayh(v2.data);
endmodule
3

In reply to dave_59:

Thanks !!!