DemuxTreeDeserializer.cc revision 10447
110447Snilay@cs.wisc.edu#include "model/electrical/DemuxTreeDeserializer.h" 210447Snilay@cs.wisc.edu 310447Snilay@cs.wisc.edu#include <cmath> 410447Snilay@cs.wisc.edu 510447Snilay@cs.wisc.edu#include "model/PortInfo.h" 610447Snilay@cs.wisc.edu#include "model/TransitionInfo.h" 710447Snilay@cs.wisc.edu#include "model/EventInfo.h" 810447Snilay@cs.wisc.edu#include "model/std_cells/StdCellLib.h" 910447Snilay@cs.wisc.edu#include "model/std_cells/StdCell.h" 1010447Snilay@cs.wisc.edu#include "model/electrical/Multiplexer.h" 1110447Snilay@cs.wisc.edu#include "model/timing_graph/ElectricalNet.h" 1210447Snilay@cs.wisc.edu 1310447Snilay@cs.wisc.edunamespace DSENT 1410447Snilay@cs.wisc.edu{ 1510447Snilay@cs.wisc.edu using std::ceil; 1610447Snilay@cs.wisc.edu 1710447Snilay@cs.wisc.edu DemuxTreeDeserializer::DemuxTreeDeserializer(const String& instance_name_, const TechModel* tech_model_) 1810447Snilay@cs.wisc.edu : ElectricalModel(instance_name_, tech_model_) 1910447Snilay@cs.wisc.edu { 2010447Snilay@cs.wisc.edu initParameters(); 2110447Snilay@cs.wisc.edu initProperties(); 2210447Snilay@cs.wisc.edu } 2310447Snilay@cs.wisc.edu 2410447Snilay@cs.wisc.edu DemuxTreeDeserializer::~DemuxTreeDeserializer() 2510447Snilay@cs.wisc.edu {} 2610447Snilay@cs.wisc.edu 2710447Snilay@cs.wisc.edu void DemuxTreeDeserializer::initParameters() 2810447Snilay@cs.wisc.edu { 2910447Snilay@cs.wisc.edu addParameterName("InDataRate"); 3010447Snilay@cs.wisc.edu addParameterName("OutDataRate"); 3110447Snilay@cs.wisc.edu addParameterName("OutBits"); //Output width will just be output width / serialization ratio 3210447Snilay@cs.wisc.edu addParameterName("BitDuplicate", "TRUE"); 3310447Snilay@cs.wisc.edu return; 3410447Snilay@cs.wisc.edu } 3510447Snilay@cs.wisc.edu 3610447Snilay@cs.wisc.edu void DemuxTreeDeserializer::initProperties() 3710447Snilay@cs.wisc.edu { 3810447Snilay@cs.wisc.edu return; 3910447Snilay@cs.wisc.edu } 4010447Snilay@cs.wisc.edu 4110447Snilay@cs.wisc.edu DemuxTreeDeserializer* DemuxTreeDeserializer::clone() const 4210447Snilay@cs.wisc.edu { 4310447Snilay@cs.wisc.edu // TODO 4410447Snilay@cs.wisc.edu return NULL; 4510447Snilay@cs.wisc.edu } 4610447Snilay@cs.wisc.edu 4710447Snilay@cs.wisc.edu void DemuxTreeDeserializer::constructModel() 4810447Snilay@cs.wisc.edu { 4910447Snilay@cs.wisc.edu 5010447Snilay@cs.wisc.edu // Get parameters 5110447Snilay@cs.wisc.edu double in_data_rate = getParameter("InDataRate"); 5210447Snilay@cs.wisc.edu double out_data_rate = getParameter("OutDataRate"); 5310447Snilay@cs.wisc.edu unsigned int out_bits = getParameter("OutBits"); 5410447Snilay@cs.wisc.edu bool bit_duplicate = getParameter("BitDuplicate"); 5510447Snilay@cs.wisc.edu 5610447Snilay@cs.wisc.edu // Calculate deserialization ratio 5710447Snilay@cs.wisc.edu unsigned int deserialization_ratio = (unsigned int) floor(in_data_rate / out_data_rate); 5810447Snilay@cs.wisc.edu ASSERT(deserialization_ratio == in_data_rate / out_data_rate, 5910447Snilay@cs.wisc.edu "[Error] " + getInstanceName() + " -> Cannot have non-integer deserialization ratios!"); 6010447Snilay@cs.wisc.edu ASSERT((deserialization_ratio & (deserialization_ratio - 1)) == 0, 6110447Snilay@cs.wisc.edu "[Error] " + getInstanceName() + " -> Deserialization ratio must be a power of 2"); 6210447Snilay@cs.wisc.edu 6310447Snilay@cs.wisc.edu // Calculate output width 6410447Snilay@cs.wisc.edu unsigned int input_bits = out_bits / deserialization_ratio; 6510447Snilay@cs.wisc.edu ASSERT(out_bits >= deserialization_ratio, "[Error] " + getInstanceName() + 6610447Snilay@cs.wisc.edu " -> Output width must be >= deserialization ratio!"); 6710447Snilay@cs.wisc.edu ASSERT(floor((double) out_bits / deserialization_ratio) == input_bits, 6810447Snilay@cs.wisc.edu "[Error] " + getInstanceName() + " -> Output width must be a multiple of the serialization ratio!"); 6910447Snilay@cs.wisc.edu 7010447Snilay@cs.wisc.edu // Store calculated numbers 7110447Snilay@cs.wisc.edu getGenProperties()->set("DeserializationRatio", deserialization_ratio); 7210447Snilay@cs.wisc.edu getGenProperties()->set("InputBits", input_bits); 7310447Snilay@cs.wisc.edu 7410447Snilay@cs.wisc.edu // Create ports 7510447Snilay@cs.wisc.edu createInputPort("In", makeNetIndex(0, input_bits-1)); 7610447Snilay@cs.wisc.edu createInputPort("InCK"); 7710447Snilay@cs.wisc.edu createOutputPort("Out", makeNetIndex(0, out_bits-1)); 7810447Snilay@cs.wisc.edu 7910447Snilay@cs.wisc.edu //Create energy, power, and area results 8010447Snilay@cs.wisc.edu createElectricalResults(); 8110447Snilay@cs.wisc.edu createElectricalEventResult("Deserialize"); 8210447Snilay@cs.wisc.edu getEventInfo("Deserialize")->setTransitionInfo("InCK", TransitionInfo(0.0, (double) deserialization_ratio / 2.0, 0.0)); 8310447Snilay@cs.wisc.edu // Set conditions during idle state 8410447Snilay@cs.wisc.edu getEventInfo("Idle")->setStaticTransitionInfos(); 8510447Snilay@cs.wisc.edu getEventInfo("Idle")->setTransitionInfo("InCK", TransitionInfo(0.0, (double) deserialization_ratio / 2.0, 0.0)); 8610447Snilay@cs.wisc.edu 8710447Snilay@cs.wisc.edu // Mark InCK as a false path (since timing tool will do strange stuff due to all the clock divides and stuff) 8810447Snilay@cs.wisc.edu getNet("InCK")->setFalsePath(true); 8910447Snilay@cs.wisc.edu 9010447Snilay@cs.wisc.edu // Create deserializer 9110447Snilay@cs.wisc.edu if (deserialization_ratio == 1) 9210447Snilay@cs.wisc.edu { 9310447Snilay@cs.wisc.edu // No need to do anything, hohoho 9410447Snilay@cs.wisc.edu assign("Out", "In"); 9510447Snilay@cs.wisc.edu } 9610447Snilay@cs.wisc.edu else if (input_bits == 1) 9710447Snilay@cs.wisc.edu { 9810447Snilay@cs.wisc.edu //----------------------------------------------------------------- 9910447Snilay@cs.wisc.edu // Create 2:1 demux deserializer 10010447Snilay@cs.wisc.edu //----------------------------------------------------------------- 10110447Snilay@cs.wisc.edu const String& des_dff_way0_name = "DesDFFWay0"; 10210447Snilay@cs.wisc.edu const String& des_dff_way1_name = "DesDFFWay1"; 10310447Snilay@cs.wisc.edu const String& des_latch_name = "DesLatch"; 10410447Snilay@cs.wisc.edu const String& ck_dff_name = "CKDFF"; 10510447Snilay@cs.wisc.edu const String& ck_inv_name = "CKINV"; 10610447Snilay@cs.wisc.edu const String& out_way0_name = "OutWay0"; 10710447Snilay@cs.wisc.edu const String& out_way1_name = "OutWay1"; 10810447Snilay@cs.wisc.edu const String& mid_way0_name = "MidWay0"; 10910447Snilay@cs.wisc.edu const String& ck_div2_name = "CK_div2"; 11010447Snilay@cs.wisc.edu const String& ck_div2_b_name = "CK_div2_b"; 11110447Snilay@cs.wisc.edu 11210447Snilay@cs.wisc.edu // Create nets 11310447Snilay@cs.wisc.edu createNet(out_way0_name); 11410447Snilay@cs.wisc.edu createNet(out_way1_name); 11510447Snilay@cs.wisc.edu createNet(mid_way0_name); 11610447Snilay@cs.wisc.edu createNet(ck_div2_name); 11710447Snilay@cs.wisc.edu createNet(ck_div2_b_name); 11810447Snilay@cs.wisc.edu 11910447Snilay@cs.wisc.edu // Create the dffs and latch needed on both ways 12010447Snilay@cs.wisc.edu StdCell* des_dff_way0 = getTechModel()->getStdCellLib()->createStdCell("DFFQ", des_dff_way0_name); 12110447Snilay@cs.wisc.edu des_dff_way0->construct(); 12210447Snilay@cs.wisc.edu StdCell* des_dff_way1 = getTechModel()->getStdCellLib()->createStdCell("DFFQ", des_dff_way1_name); 12310447Snilay@cs.wisc.edu des_dff_way1->construct(); 12410447Snilay@cs.wisc.edu StdCell* des_latch = getTechModel()->getStdCellLib()->createStdCell("LATQ", des_latch_name); 12510447Snilay@cs.wisc.edu des_latch->construct(); 12610447Snilay@cs.wisc.edu 12710447Snilay@cs.wisc.edu // Create clk divide circuit 12810447Snilay@cs.wisc.edu StdCell* ck_dff = getTechModel()->getStdCellLib()->createStdCell("DFFQ", ck_dff_name); 12910447Snilay@cs.wisc.edu ck_dff->construct(); 13010447Snilay@cs.wisc.edu StdCell* ck_inv = getTechModel()->getStdCellLib()->createStdCell("INV", ck_inv_name); 13110447Snilay@cs.wisc.edu ck_inv->construct(); 13210447Snilay@cs.wisc.edu 13310447Snilay@cs.wisc.edu // Connect ports 13410447Snilay@cs.wisc.edu portConnect(des_dff_way0, "CK", "InCK"); 13510447Snilay@cs.wisc.edu portConnect(des_dff_way0, "D", mid_way0_name); 13610447Snilay@cs.wisc.edu portConnect(des_dff_way0, "Q", out_way0_name); 13710447Snilay@cs.wisc.edu portConnect(des_latch, "G", "InCK"); 13810447Snilay@cs.wisc.edu portConnect(des_latch, "D", "In"); 13910447Snilay@cs.wisc.edu portConnect(des_latch, "Q", mid_way0_name); 14010447Snilay@cs.wisc.edu portConnect(des_dff_way1, "CK", "InCK"); 14110447Snilay@cs.wisc.edu portConnect(des_dff_way1, "D", "In"); 14210447Snilay@cs.wisc.edu portConnect(des_dff_way1, "Q", out_way1_name); 14310447Snilay@cs.wisc.edu portConnect(ck_dff, "CK", "InCK"); 14410447Snilay@cs.wisc.edu portConnect(ck_dff, "D", ck_div2_b_name); 14510447Snilay@cs.wisc.edu portConnect(ck_dff, "Q", ck_div2_name); 14610447Snilay@cs.wisc.edu portConnect(ck_inv, "A", ck_div2_name); 14710447Snilay@cs.wisc.edu portConnect(ck_inv, "Y", ck_div2_b_name); 14810447Snilay@cs.wisc.edu 14910447Snilay@cs.wisc.edu // Add sub instances 15010447Snilay@cs.wisc.edu addSubInstances(des_dff_way0, 1.0); 15110447Snilay@cs.wisc.edu addElectricalSubResults(des_dff_way0, 1.0); 15210447Snilay@cs.wisc.edu addSubInstances(des_dff_way1, 1.0); 15310447Snilay@cs.wisc.edu addElectricalSubResults(des_dff_way1, 1.0); 15410447Snilay@cs.wisc.edu addSubInstances(des_latch, 1.0); 15510447Snilay@cs.wisc.edu addElectricalSubResults(des_latch, 1.0); 15610447Snilay@cs.wisc.edu addSubInstances(ck_dff, 1.0); 15710447Snilay@cs.wisc.edu addElectricalSubResults(ck_dff, 1.0); 15810447Snilay@cs.wisc.edu addSubInstances(ck_inv, 1.0); 15910447Snilay@cs.wisc.edu addElectricalSubResults(ck_inv, 1.0); 16010447Snilay@cs.wisc.edu 16110447Snilay@cs.wisc.edu Result* deserialize = getEventResult("Deserialize"); 16210447Snilay@cs.wisc.edu deserialize->addSubResult(des_dff_way0->getEventResult("CK"), des_dff_way0_name, 1.0); 16310447Snilay@cs.wisc.edu deserialize->addSubResult(des_dff_way0->getEventResult("DFFD"), des_dff_way0_name, 1.0); 16410447Snilay@cs.wisc.edu deserialize->addSubResult(des_dff_way0->getEventResult("DFFQ"), des_dff_way0_name, 1.0); 16510447Snilay@cs.wisc.edu deserialize->addSubResult(des_dff_way1->getEventResult("CK"), des_dff_way1_name, 1.0); 16610447Snilay@cs.wisc.edu deserialize->addSubResult(des_dff_way1->getEventResult("DFFD"), des_dff_way1_name, 1.0); 16710447Snilay@cs.wisc.edu deserialize->addSubResult(des_dff_way1->getEventResult("DFFQ"), des_dff_way1_name, 1.0); 16810447Snilay@cs.wisc.edu deserialize->addSubResult(des_latch->getEventResult("G"), des_latch_name, 1.0); 16910447Snilay@cs.wisc.edu deserialize->addSubResult(des_latch->getEventResult("LATD"), des_latch_name, 1.0); 17010447Snilay@cs.wisc.edu deserialize->addSubResult(des_latch->getEventResult("LATQ"), des_latch_name, 1.0); 17110447Snilay@cs.wisc.edu deserialize->addSubResult(ck_dff->getEventResult("CK"), ck_dff_name, 1.0); 17210447Snilay@cs.wisc.edu deserialize->addSubResult(ck_dff->getEventResult("DFFD"), ck_dff_name, 1.0); 17310447Snilay@cs.wisc.edu deserialize->addSubResult(ck_dff->getEventResult("DFFQ"), ck_dff_name, 1.0); 17410447Snilay@cs.wisc.edu deserialize->addSubResult(ck_inv->getEventResult("INV"), ck_inv_name, 1.0); 17510447Snilay@cs.wisc.edu //----------------------------------------------------------------- 17610447Snilay@cs.wisc.edu 17710447Snilay@cs.wisc.edu //----------------------------------------------------------------- 17810447Snilay@cs.wisc.edu // Create Sub-deserializers 17910447Snilay@cs.wisc.edu //----------------------------------------------------------------- 18010447Snilay@cs.wisc.edu // Create sub-deserializers 18110447Snilay@cs.wisc.edu const String& demux_way0_name = "DemuxTree_way0_" + (String) deserialization_ratio + "_to_1"; 18210447Snilay@cs.wisc.edu const String& demux_way1_name = "DemuxTree_way1_" + (String) deserialization_ratio + "_to_1"; 18310447Snilay@cs.wisc.edu 18410447Snilay@cs.wisc.edu DemuxTreeDeserializer* demux_way0 = new DemuxTreeDeserializer(demux_way0_name, getTechModel()); 18510447Snilay@cs.wisc.edu demux_way0->setParameter("InDataRate", in_data_rate / 2.0); 18610447Snilay@cs.wisc.edu demux_way0->setParameter("OutDataRate", out_data_rate); 18710447Snilay@cs.wisc.edu demux_way0->setParameter("OutBits", out_bits / 2); 18810447Snilay@cs.wisc.edu demux_way0->setParameter("BitDuplicate", "TRUE"); 18910447Snilay@cs.wisc.edu demux_way0->construct(); 19010447Snilay@cs.wisc.edu 19110447Snilay@cs.wisc.edu DemuxTreeDeserializer* demux_way1 = new DemuxTreeDeserializer(demux_way1_name, getTechModel()); 19210447Snilay@cs.wisc.edu demux_way1->setParameter("InDataRate", in_data_rate / 2.0); 19310447Snilay@cs.wisc.edu demux_way1->setParameter("OutDataRate", out_data_rate); 19410447Snilay@cs.wisc.edu demux_way1->setParameter("OutBits", out_bits / 2); 19510447Snilay@cs.wisc.edu demux_way1->setParameter("BitDuplicate", "TRUE"); 19610447Snilay@cs.wisc.edu demux_way1->construct(); 19710447Snilay@cs.wisc.edu 19810447Snilay@cs.wisc.edu // Connect ports 19910447Snilay@cs.wisc.edu portConnect(demux_way0, "In", out_way0_name); 20010447Snilay@cs.wisc.edu portConnect(demux_way0, "InCK", ck_div2_name); 20110447Snilay@cs.wisc.edu portConnect(demux_way0, "Out", "Out", makeNetIndex(0, out_bits/2-1)); 20210447Snilay@cs.wisc.edu 20310447Snilay@cs.wisc.edu portConnect(demux_way1, "In", out_way1_name); 20410447Snilay@cs.wisc.edu portConnect(demux_way1, "InCK", ck_div2_name); 20510447Snilay@cs.wisc.edu portConnect(demux_way1, "Out", "Out", makeNetIndex(out_bits/2, out_bits-1)); 20610447Snilay@cs.wisc.edu 20710447Snilay@cs.wisc.edu // Add subinstances and area results 20810447Snilay@cs.wisc.edu addSubInstances(demux_way0, 1.0); 20910447Snilay@cs.wisc.edu addElectricalSubResults(demux_way0, 1.0); 21010447Snilay@cs.wisc.edu addSubInstances(demux_way1, 1.0); 21110447Snilay@cs.wisc.edu addElectricalSubResults(demux_way1, 1.0); 21210447Snilay@cs.wisc.edu 21310447Snilay@cs.wisc.edu deserialize->addSubResult(demux_way0->getEventResult("Deserialize"), demux_way0_name, 1.0); 21410447Snilay@cs.wisc.edu deserialize->addSubResult(demux_way1->getEventResult("Deserialize"), demux_way1_name, 1.0); 21510447Snilay@cs.wisc.edu //----------------------------------------------------------------- 21610447Snilay@cs.wisc.edu 21710447Snilay@cs.wisc.edu } 21810447Snilay@cs.wisc.edu else if (bit_duplicate) 21910447Snilay@cs.wisc.edu { 22010447Snilay@cs.wisc.edu const String& demux_name = "DemuxTree_" + (String) deserialization_ratio + "_to_1"; 22110447Snilay@cs.wisc.edu 22210447Snilay@cs.wisc.edu DemuxTreeDeserializer* des_bit = new DemuxTreeDeserializer(demux_name, getTechModel()); 22310447Snilay@cs.wisc.edu des_bit->setParameter("InDataRate", in_data_rate); 22410447Snilay@cs.wisc.edu des_bit->setParameter("OutDataRate", out_data_rate); 22510447Snilay@cs.wisc.edu des_bit->setParameter("OutBits", deserialization_ratio); 22610447Snilay@cs.wisc.edu des_bit->setParameter("BitDuplicate", "TRUE"); 22710447Snilay@cs.wisc.edu des_bit->construct(); 22810447Snilay@cs.wisc.edu 22910447Snilay@cs.wisc.edu // Create VFI and VFO nets 23010447Snilay@cs.wisc.edu createNet("InVFI"); 23110447Snilay@cs.wisc.edu createNet("OutVFO", makeNetIndex(0, deserialization_ratio-1)); 23210447Snilay@cs.wisc.edu 23310447Snilay@cs.wisc.edu // Connect ports 23410447Snilay@cs.wisc.edu portConnect(des_bit, "In", "InVFI"); 23510447Snilay@cs.wisc.edu portConnect(des_bit, "Out", "OutVFO"); 23610447Snilay@cs.wisc.edu 23710447Snilay@cs.wisc.edu // Do VFI and VFO 23810447Snilay@cs.wisc.edu assignVirtualFanin("InVFI", "In"); 23910447Snilay@cs.wisc.edu for (unsigned int i = 0; i < input_bits; ++i) 24010447Snilay@cs.wisc.edu { 24110447Snilay@cs.wisc.edu portConnect(des_bit, "InCK", "InCK"); 24210447Snilay@cs.wisc.edu for (unsigned int j = 0; j < deserialization_ratio; ++j) 24310447Snilay@cs.wisc.edu assignVirtualFanout("Out", makeNetIndex(i*deserialization_ratio + j), "OutVFO", makeNetIndex(j)); 24410447Snilay@cs.wisc.edu } 24510447Snilay@cs.wisc.edu // Add subinstances and area results 24610447Snilay@cs.wisc.edu addSubInstances(des_bit, input_bits); 24710447Snilay@cs.wisc.edu addElectricalSubResults(des_bit, input_bits); 24810447Snilay@cs.wisc.edu getEventResult("Deserialize")->addSubResult(des_bit->getEventResult("Deserialize"), demux_name, input_bits); 24910447Snilay@cs.wisc.edu } 25010447Snilay@cs.wisc.edu else 25110447Snilay@cs.wisc.edu { 25210447Snilay@cs.wisc.edu //Instantiate a bunch of 1 input bit deserializers 25310447Snilay@cs.wisc.edu for (unsigned int i = 0; i < input_bits; ++i) 25410447Snilay@cs.wisc.edu { 25510447Snilay@cs.wisc.edu const String& demux_name = "DemuxTree_" + (String) deserialization_ratio + "_to_1_bit" + (String) i; 25610447Snilay@cs.wisc.edu 25710447Snilay@cs.wisc.edu DemuxTreeDeserializer* des_bit = new DemuxTreeDeserializer(demux_name, getTechModel()); 25810447Snilay@cs.wisc.edu des_bit->setParameter("InDataRate", in_data_rate); 25910447Snilay@cs.wisc.edu des_bit->setParameter("OutDataRate", out_data_rate); 26010447Snilay@cs.wisc.edu des_bit->setParameter("OutBits", deserialization_ratio); 26110447Snilay@cs.wisc.edu des_bit->setParameter("BitDuplicate", "TRUE"); 26210447Snilay@cs.wisc.edu des_bit->construct(); 26310447Snilay@cs.wisc.edu 26410447Snilay@cs.wisc.edu portConnect(des_bit, "In", "In", makeNetIndex(i)); 26510447Snilay@cs.wisc.edu portConnect(des_bit, "InCK", "InCK"); 26610447Snilay@cs.wisc.edu portConnect(des_bit, "Out", "Out", makeNetIndex(i*deserialization_ratio, (i+1)*deserialization_ratio-1)); 26710447Snilay@cs.wisc.edu 26810447Snilay@cs.wisc.edu addSubInstances(des_bit, 1.0); 26910447Snilay@cs.wisc.edu addElectricalSubResults(des_bit, 1.0); 27010447Snilay@cs.wisc.edu getEventResult("Deserialize")->addSubResult(des_bit->getEventResult("Deserialize"), demux_name, 1.0); 27110447Snilay@cs.wisc.edu } 27210447Snilay@cs.wisc.edu } 27310447Snilay@cs.wisc.edu 27410447Snilay@cs.wisc.edu return; 27510447Snilay@cs.wisc.edu } 27610447Snilay@cs.wisc.edu 27710447Snilay@cs.wisc.edu void DemuxTreeDeserializer::propagateTransitionInfo() 27810447Snilay@cs.wisc.edu { 27910447Snilay@cs.wisc.edu // Get parameters 28010447Snilay@cs.wisc.edu bool bit_duplicate = getParameter("BitDuplicate"); 28110447Snilay@cs.wisc.edu // Get generated properties 28210447Snilay@cs.wisc.edu unsigned int deserialization_ratio = getGenProperties()->get("DeserializationRatio"); 28310447Snilay@cs.wisc.edu unsigned int input_bits = getGenProperties()->get("InputBits"); 28410447Snilay@cs.wisc.edu 28510447Snilay@cs.wisc.edu // Calculate output transitions and activities 28610447Snilay@cs.wisc.edu if (deserialization_ratio == 1) 28710447Snilay@cs.wisc.edu { 28810447Snilay@cs.wisc.edu // If no deserialization, then just propagate input transition info to output port 28910447Snilay@cs.wisc.edu propagatePortTransitionInfo("Out", "In"); 29010447Snilay@cs.wisc.edu } 29110447Snilay@cs.wisc.edu else if (input_bits == 1) 29210447Snilay@cs.wisc.edu { 29310447Snilay@cs.wisc.edu const String& des_dff_way0_name = "DesDFFWay0"; 29410447Snilay@cs.wisc.edu const String& des_dff_way1_name = "DesDFFWay1"; 29510447Snilay@cs.wisc.edu const String& des_latch_name = "DesLatch"; 29610447Snilay@cs.wisc.edu const String& ck_dff_name = "CKDFF"; 29710447Snilay@cs.wisc.edu const String& ck_inv_name = "CKINV"; 29810447Snilay@cs.wisc.edu 29910447Snilay@cs.wisc.edu // Sub-deserializer names 30010447Snilay@cs.wisc.edu const String& demux_way0_name = "DemuxTree_way0_" + (String) deserialization_ratio + "_to_1"; 30110447Snilay@cs.wisc.edu const String& demux_way1_name = "DemuxTree_way1_" + (String) deserialization_ratio + "_to_1"; 30210447Snilay@cs.wisc.edu 30310447Snilay@cs.wisc.edu // Update transition info for deserialization registers/latches 30410447Snilay@cs.wisc.edu ElectricalModel* des_latch = (ElectricalModel*) getSubInstance(des_latch_name); 30510447Snilay@cs.wisc.edu propagatePortTransitionInfo(des_latch, "G", "InCK"); 30610447Snilay@cs.wisc.edu propagatePortTransitionInfo(des_latch, "D", "In"); 30710447Snilay@cs.wisc.edu des_latch->use(); 30810447Snilay@cs.wisc.edu 30910447Snilay@cs.wisc.edu ElectricalModel* des_dff_way0 = (ElectricalModel*) getSubInstance(des_dff_way0_name); 31010447Snilay@cs.wisc.edu propagatePortTransitionInfo(des_dff_way0, "CK", "InCK"); 31110447Snilay@cs.wisc.edu propagatePortTransitionInfo(des_dff_way0, "D", des_latch, "Q"); 31210447Snilay@cs.wisc.edu des_dff_way0->use(); 31310447Snilay@cs.wisc.edu 31410447Snilay@cs.wisc.edu ElectricalModel* des_dff_way1 = (ElectricalModel*) getSubInstance(des_dff_way1_name); 31510447Snilay@cs.wisc.edu propagatePortTransitionInfo(des_dff_way1, "CK", "InCK"); 31610447Snilay@cs.wisc.edu propagatePortTransitionInfo(des_dff_way1, "D", "In"); 31710447Snilay@cs.wisc.edu des_dff_way1->use(); 31810447Snilay@cs.wisc.edu 31910447Snilay@cs.wisc.edu // Get input transitions of input clock 32010447Snilay@cs.wisc.edu double P01_CK = getInputPort("InCK")->getTransitionInfo().getNumberTransitions01(); 32110447Snilay@cs.wisc.edu // Update transition info for clk division DFF 32210447Snilay@cs.wisc.edu ElectricalModel* ck_dff = (ElectricalModel*) getSubInstance(ck_dff_name); 32310447Snilay@cs.wisc.edu propagatePortTransitionInfo(ck_dff, "CK", "InCK"); 32410447Snilay@cs.wisc.edu // Since it is a clock divider, P01 is D and Q are simply half the P01 of D and Q of 32510447Snilay@cs.wisc.edu // the input clock 32610447Snilay@cs.wisc.edu if (P01_CK != 0) ck_dff->getInputPort("D")->setTransitionInfo(TransitionInfo(0.0, P01_CK * 0.5, 0.0)); 32710447Snilay@cs.wisc.edu else ck_dff->getInputPort("D")->setTransitionInfo(TransitionInfo(0.5, 0.0, 0.5)); 32810447Snilay@cs.wisc.edu 32910447Snilay@cs.wisc.edu ck_dff->use(); 33010447Snilay@cs.wisc.edu // Update transition info of clk divided inverter 33110447Snilay@cs.wisc.edu ElectricalModel* ck_inv = (ElectricalModel*) getSubInstance(ck_inv_name); 33210447Snilay@cs.wisc.edu propagatePortTransitionInfo(ck_inv, "A", ck_dff, "Q"); 33310447Snilay@cs.wisc.edu ck_inv->use(); 33410447Snilay@cs.wisc.edu 33510447Snilay@cs.wisc.edu // Update transition info for next demux stages 33610447Snilay@cs.wisc.edu ElectricalModel* demux_way0 = (ElectricalModel*) getSubInstance(demux_way0_name); 33710447Snilay@cs.wisc.edu propagatePortTransitionInfo(demux_way0, "In", des_dff_way0, "Q"); 33810447Snilay@cs.wisc.edu propagatePortTransitionInfo(demux_way0, "InCK", ck_dff, "Q"); 33910447Snilay@cs.wisc.edu demux_way0->use(); 34010447Snilay@cs.wisc.edu ElectricalModel* demux_way1 = (ElectricalModel*) getSubInstance(demux_way1_name); 34110447Snilay@cs.wisc.edu propagatePortTransitionInfo(demux_way1, "In", des_dff_way1, "Q"); 34210447Snilay@cs.wisc.edu propagatePortTransitionInfo(demux_way1, "InCK", ck_dff, "Q"); 34310447Snilay@cs.wisc.edu demux_way1->use(); 34410447Snilay@cs.wisc.edu 34510447Snilay@cs.wisc.edu propagatePortTransitionInfo("Out", demux_way0, "Out"); 34610447Snilay@cs.wisc.edu } 34710447Snilay@cs.wisc.edu else if (bit_duplicate) 34810447Snilay@cs.wisc.edu { 34910447Snilay@cs.wisc.edu // Propagate transition info 35010447Snilay@cs.wisc.edu const String& demux_name = "DemuxTree_" + (String) deserialization_ratio + "_to_1"; 35110447Snilay@cs.wisc.edu ElectricalModel* demux = (ElectricalModel*) getSubInstance(demux_name); 35210447Snilay@cs.wisc.edu propagatePortTransitionInfo(demux, "In", "In"); 35310447Snilay@cs.wisc.edu propagatePortTransitionInfo(demux, "InCK", "InCK"); 35410447Snilay@cs.wisc.edu demux->use(); 35510447Snilay@cs.wisc.edu 35610447Snilay@cs.wisc.edu propagatePortTransitionInfo("Out", demux, "Out"); 35710447Snilay@cs.wisc.edu } 35810447Snilay@cs.wisc.edu else 35910447Snilay@cs.wisc.edu { 36010447Snilay@cs.wisc.edu // Set output probability to be average that of probabilties of each output bit 36110447Snilay@cs.wisc.edu // Update all 1 bit deserializers 36210447Snilay@cs.wisc.edu for (unsigned int i = 0; i < input_bits; ++i) 36310447Snilay@cs.wisc.edu { 36410447Snilay@cs.wisc.edu const String& demux_name = "DemuxTree_" + (String) deserialization_ratio + "_to_1_bit" + (String) i; 36510447Snilay@cs.wisc.edu ElectricalModel* demux_bit = (ElectricalModel*) getSubInstance(demux_name); 36610447Snilay@cs.wisc.edu propagatePortTransitionInfo(demux_bit, "In", "In"); 36710447Snilay@cs.wisc.edu propagatePortTransitionInfo(demux_bit, "InCK", "InCK"); 36810447Snilay@cs.wisc.edu demux_bit->use(); 36910447Snilay@cs.wisc.edu 37010447Snilay@cs.wisc.edu propagatePortTransitionInfo("Out", demux_bit, "Out"); 37110447Snilay@cs.wisc.edu } 37210447Snilay@cs.wisc.edu } 37310447Snilay@cs.wisc.edu 37410447Snilay@cs.wisc.edu return; 37510447Snilay@cs.wisc.edu } 37610447Snilay@cs.wisc.edu 37710447Snilay@cs.wisc.edu} // namespace DSENT 37810447Snilay@cs.wisc.edu 379