Subversion Repositories iso7816_3_master

`timescale 1ns / 1ps

`default_nettype none

//////////////////////////////////////////////////////////////////////////////////

// Company: 

// Engineer: Sebastien Riou

// 

// Create Date:    17:14:04 01/29/2011 

// Design Name: 

// Module Name:    Iso7816_directionProbe 

// Project Name: 

// Target Devices: 

// Tool versions: 

// Description: model a probe which consist only of wires. Propagation delay over the sio line

// is used to determined the direction of the communication:

// If the terminal send a start bit, the termMon output will go low before cardMon and viceversa

//

// Dependencies: 

//

// Revision: 

// Revision 0.01 - File Created

// Additional Comments: 

//

//////////////////////////////////////////////////////////////////////////////////

module Iso7816_directionProbe(

    inout wire isoSioTerm,

    inout wire isoSioCard,

    output wire termMon,

    output wire cardMon

    );

TriWirePullup sioLine(.a(isoSioTerm), .b(isoSioCard));

assign termMon = isoSioTerm;

assign cardMon = isoSioCard;

endmodule