ElectricalDriverMultiplier.h revision 10448:bc1a3b7ab5ef 
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
6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 * THE SOFTWARE.
20 */
21
22#ifndef __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__
23#define __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__
24
25#include "util/CommonType.h"
26#include "model/timing_graph/ElectricalTimingNode.h"
27
28namespace DSENT
29{
30    // Simple class that can be used to mimic the presence of multiple drivers
31    // output drivers (each driving one of the downstream loads) when only one
32    // such driver has been instantiated (such as models that take advantage of
33    // bit duplicattion). When the downsream loads differ in load cap, it
34    // just returns the largest of the caps
35    class ElectricalDriverMultiplier : public ElectricalTimingNode
36    {
37        public:
38            ElectricalDriverMultiplier(const String& instance_name_, ElectricalModel* model_);
39            virtual ~ElectricalDriverMultiplier();
40
41        public:
42            // Calculate drive resistance of this node;
43            double calculateDriveRes(double input_drive_res_) const;
44            // Calculate wiring delay (or net delay)
45            double calculateDelay() const;
46            // Calculate transition
47            double calculateTransition() const;
48            // get total amount of downstream load capacitance
49            double getTotalDownstreamCap() const;
50
51        private:
52            // Disable copy constructor
53            ElectricalDriverMultiplier(const ElectricalDriverMultiplier& net_);
54
55        private:
56            // Name of this instance
57            String m_instance_name_;
58    };
59
60} // namespace DSENT
61
62#endif // __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__
63
64