wire.h revision 10152 
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31
32
33
34#ifndef __WIRE_H__
35#define __WIRE_H__
36
37#include <iostream>
38#include <list>
39
40#include "assert.h"
41#include "basic_circuit.h"
42#include "cacti_interface.h"
43#include "component.h"
44#include "parameter.h"
45
46class Wire : public Component
47{
48  public:
49    Wire(enum Wire_type wire_model, double len /* in u*/,
50         int nsense = 1/* no. of sense amps connected to the low-swing wire */,
51         double width_scaling = 1,
52         double spacing_scaling = 1,
53         enum Wire_placement wire_placement = outside_mat,
54         double resistivity = CU_RESISTIVITY,
55         TechnologyParameter::DeviceType *dt = &(g_tp.peri_global));
56    ~Wire();
57
58    Wire( double width_scaling = 1,
59         double spacing_scaling = 1,
60         enum Wire_placement wire_placement = outside_mat,
61         double resistivity = CU_RESISTIVITY,
62         TechnologyParameter::DeviceType *dt = &(g_tp.peri_global)
63    ); // should be used only once for initializing static members
64    void init_wire();
65
66    void calculate_wire_stats();
67    void delay_optimal_wire();
68    double wire_cap(double len, bool call_from_outside=false);
69    double wire_res(double len);
70    void low_swing_model();
71    double signal_fall_time();
72    double signal_rise_time();
73    double sense_amp_input_cap();
74
75    enum Wire_type wt;
76    double wire_spacing;
77    double wire_width;
78    enum Wire_placement wire_placement;
79    double repeater_size;
80    double repeater_spacing;
81    double wire_length;
82    double in_rise_time, out_rise_time;
83
84    void set_in_rise_time(double rt)
85    {
86      in_rise_time = rt;
87    }
88    static Component global;
89    static Component global_5;
90    static Component global_10;
91    static Component global_20;
92    static Component global_30;
93    static Component low_swing;
94    static double wire_width_init;
95    static double wire_spacing_init;
96    void print_wire();
97
98  private:
99
100    int nsense; // no. of sense amps connected to a low-swing wire if it
101                // is broadcasting data to multiple destinations
102    // width and spacing scaling factor can be used
103    // to model low level wires or special
104    // fat wires
105    double w_scale, s_scale;
106    double resistivity;
107    powerDef wire_model (double space, double size, double *delay);
108    list <Component> repeated_wire;
109    void update_fullswing();
110    static int initialized;
111
112
113    //low-swing
114    Component transmitter;
115    Component l_wire;
116    Component sense_amp;
117
118    double min_w_pmos;
119
120    TechnologyParameter::DeviceType *deviceType;
121
122};
123
124#endif
125