ext/dsent/model/std_cells/StdCell.h

   1 /* Copyright (c) 2012 Massachusetts Institute of Technology
   2  *
   3  * Permission is hereby granted, free of charge, to any person obtaining a copy
   4  * of this software and associated documentation files (the "Software"), to deal
   5  * in the Software without restriction, including without limitation the rights
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   7  * copies of the Software, and to permit persons to whom the Software is
   8  * furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice shall be included in
  11  * all copies or substantial portions of the Software.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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  19  * THE SOFTWARE.
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  21
  22 #ifndef __DSENT_MODEL_STD_CELLS_STDCELL_H__
  23 #define __DSENT_MODEL_STD_CELLS_STDCELL_H__
  24
  25 #include "util/CommonType.h"
  26 #include "model/ElectricalModel.h"
  27
  28 namespace DSENT
  29 {
  30     class StdCell : public ElectricalModel
  31     {
  32         public:
  33             StdCell(const String& instance_name_, const TechModel* tech_model_);
  34             virtual ~StdCell();
  35
  36         public:
  37             // Set a list of parameters needed to construct model
  38             virtual void initParameters();
  39             // Set a list of properties needed to update model
  40             virtual void initProperties();
  41
  42             // Get PMOS to NMOS ratio
  43             double getPToNRatio() const;
  44             void setPToNRatio(double p_to_n_ratio_);
  45             // Get height of the standard cell taken by active transistors
  46             double getActiveHeight() const;
  47             void setActiveHeight(double active_height_);
  48             // Get total height of the standard cell including overheads
  49             double getTotalHeight() const;
  50             void setTotalHeight(double total_height_);
  51
  52             // Construct the full model of the standard cell and cache
  53             // its contents to use for future copies of the standard cell
  54             virtual void cacheStdCell(StdCellLib* cell_lib_, double drive_strength_) = 0;
  55
  56         protected:
  57             // Build the model, note that this is only available if the
  58             // standard cell has been cached (via cacheStdCellModel)
  59             virtual void constructModel() = 0;
  60             virtual void updateModel() = 0;
  61
  62         private:
  63             // The PMOS to NMOS ratio
  64             double m_p_to_n_ratio_;
  65             // The height of the standard cell taken by active transitors
  66             double m_active_height_;
  67             // The total height of the standard cell including overheads
  68             double m_total_height_;
  69
  70     }; // class StdCell
  71 } // namespace DSENT
  72
  73 #endif // __DSENT_MODEL_STD_CELLS_STDCELL_H__
  74