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
23#include "model/timing_graph/ElectricalNet.h"
24#include "model/timing_graph/ElectricalLoad.h"
25
26namespace DSENT
27{
28    //-------------------------------------------------------------------------
29    // Electrical Net
30    //-------------------------------------------------------------------------
31
32    ElectricalNet::ElectricalNet(const String& instance_name_, ElectricalModel* model_)
33        : ElectricalTimingNode(instance_name_, model_), m_distributed_res_(0), m_distributed_cap_(0)
34    {
35
36    }
37
38    ElectricalNet::~ElectricalNet()
39    {
40
41    }
42
43    double ElectricalNet::calculateDelay() const
44    {
45        // Remember that this is a pi model, delay is distributed cap * distributed_res / 2 +
46        // distributed res * (other downstream caps)
47        return 0.693 * (getTotalDownstreamCap() - m_distributed_cap_ / 2) * m_distributed_res_;
48    }
49
50    double ElectricalNet::calculateTransition() const
51    {
52        return 1.386 * getMaxUpstreamRes() * (m_distributed_cap_ * 0.2 + ElectricalTimingNode::getTotalDownstreamCap());
53    }
54
55    double ElectricalNet::getMaxUpstreamRes() const
56    {
57        return m_distributed_res_ + ElectricalTimingNode::getMaxUpstreamRes();
58    }
59
60    double ElectricalNet::getTotalDownstreamCap() const
61    {
62        return m_distributed_cap_ + ElectricalTimingNode::getTotalDownstreamCap();
63    }
64
65    void ElectricalNet::setDistributedCap(double distributed_cap_)
66    {
67        m_distributed_cap_ = distributed_cap_;
68        return;
69    }
70
71    void ElectricalNet::setDistributedRes(double distributed_res_)
72    {
73        m_distributed_res_ = distributed_res_;
74        return;
75    }
76
77    double ElectricalNet::getDistributedCap() const
78    {
79        return m_distributed_cap_;
80    }
81
82    double ElectricalNet::getDistributedRes() const
83    {
84        return m_distributed_res_;
85    }
86
87    bool ElectricalNet::isNet() const
88    {
89        return true;
90    }
91
92} // namespace DSENT
93
94
95