[sv-bc] RE: Specifying modport on array of interfaces..

At first glance, I think this is the same issue from http://www.eda-stds.org/sv-bc/hm/9058.html ?

Shalom

________________________________
From: owner-sv-bc@server.eda.org [mailto:owner-sv-bc@server.eda.org] On Behalf Of Anand Gurusamy
Sent: Monday, May 25, 2009 3:04 PM
To: sv-bc@server.eda.org
Cc: Arun Maity; Girish Ravunnikutty; Kapil Kaushik
Subject: [sv-bc] Specifying modport on array of interfaces..

Hi there,

Here we are trying to use array of interfaces and specify modport.
In case-1, we instantiate array of interfaces in the submodule and specify the modport list name in the top level module
And in case-2, we instantiate the array of interface along with modport specified.

So, could you please clarify which one would be the correct way?

Thanks and Regards,
-Anand

***********************************************
* CASE 1:
***********************************************
interface inf ();
 logic   din;
 logic   dout;

 modport x(output dout, input din);
 modport y(inout dout, inout din);
endinterface: inf

module sub(in, U1, out);
 input [1:0] in;
 output [1:0] out;

 inf U1 [2];
endmodule

module top(in, out);
 input      [1:0] in;
 output    [1:0] out;

 inf U1 [2] ();
 sub  inst_sub  (.U1(U1.x),.in(in), out(out));
endmodule

***********************************************
* CASE 2:
***********************************************
interface inf ();
 logic   din;
 logic   dout;

 modport x(output dout, input din);
 modport y(inout dout, inout din);
endinterface: inf

module sub(in, U1, out);
 input [1:0] in;
 output [1:0] out;

 inf.x U1[2];
endmodule

module top(in, out);
 input      [1:0] in;
 output    [1:0] out;

 inf U1 [2] ();
 sub  inst_sub  (.U1(U1), .in(in), out(out));
endmodule


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