CSCBaseboard Class Reference

#include <CSCBaseboard.h>

Inheritance diagram for CSCBaseboard:

Public Member Functions
	CSCBaseboard ()
	CSCBaseboard (unsigned endcap, unsigned station, unsigned sector, unsigned subsector, unsigned chamber, const edm::ParameterSet &conf)
std::string	getCSCName () const
void	setCSCGeometry (const CSCGeometry *g)
virtual	~CSCBaseboard ()=default

Protected Member Functions
void	checkConfigParameters (unsigned int &var, const unsigned int var_max, const unsigned int var_def, const std::string &var_str)

Protected Attributes
edm::ParameterSet	alctParams_
edm::ParameterSet	clctParams_
edm::ParameterSet	commonParams_
const CSCChamber *	cscChamber_
const CSCGeometry *	cscGeometry_
CSCDetId	cscId_
bool	disableME1a_
bool	enableAlctPhase2_
bool	gangedME1a_
int	infoV
bool	isME11_
bool	isME21_
bool	isME31_
bool	isME41_
bool	runCCLUT_
bool	runME11ILT_
bool	runME11Up_
bool	runME21ILT_
bool	runME21Up_
bool	runME31Up_
bool	runME41Up_
bool	runPhase2_
unsigned	theChamber
std::string	theCSCName_
const unsigned	theEndcap
unsigned	theRegion
unsigned	theRing
const unsigned	theSector
const unsigned	theStation
const unsigned	theSubsector
const unsigned	theTrigChamber
edm::ParameterSet	tmbParams_

Detailed Description

Definition at line 15 of file CSCBaseboard.h.

Constructor & Destructor Documentation

CSCBaseboard() [1/2]

CSCBaseboard::CSCBaseboard	(	unsigned	endcap,
		unsigned	station,
		unsigned	sector,
		unsigned	subsector,
		unsigned	chamber,
		const edm::ParameterSet &	conf
	)

Normal constructor.

Definition at line 3 of file CSCBaseboard.cc.

    : theEndcap(endcap), theStation(station), theSector(sector), theSubsector(subsector), theTrigChamber(chamber) {
  theRegion = (theEndcap == 1) ? 1 : -1;
 
  theRing = CSCTriggerNumbering::ringFromTriggerLabels(theStation, theTrigChamber);
 
  theChamber = CSCTriggerNumbering::chamberFromTriggerLabels(theSector, theSubsector, theStation, theTrigChamber);
  isME11_ = (theStation == 1 && theRing == 1);
  isME21_ = (theStation == 2 && theRing == 1);
  isME31_ = (theStation == 3 && theRing == 1);
  isME41_ = (theStation == 4 && theRing == 1);
 
  cscId_ = CSCDetId(theEndcap, theStation, theRing, theChamber, 0);
 
  commonParams_ = conf.getParameter<edm::ParameterSet>("commonParam");
 
  theCSCName_ = CSCDetId::chamberName(theEndcap, theStation, theRing, theChamber);
 
  runPhase2_ = commonParams_.getParameter<bool>("runPhase2");
 
  enableAlctPhase2_ = commonParams_.getParameter<bool>("enableAlctPhase2");
 
  disableME1a_ = commonParams_.getParameter<bool>("disableME1a");
 
  gangedME1a_ = commonParams_.getParameter<bool>("gangedME1a");
 
  runME11Up_ = commonParams_.getParameter<bool>("runME11Up");
  runME21Up_ = commonParams_.getParameter<bool>("runME21Up");
  runME31Up_ = commonParams_.getParameter<bool>("runME31Up");
  runME41Up_ = commonParams_.getParameter<bool>("runME41Up");
 
  runME11ILT_ = commonParams_.getParameter<bool>("runME11ILT");
  runME21ILT_ = commonParams_.getParameter<bool>("runME21ILT");
 
  runCCLUT_ = commonParams_.getParameter<bool>("runCCLUT");
 
  // general case
  tmbParams_ = conf.getParameter<edm::ParameterSet>("tmbPhase1");
  alctParams_ = conf.getParameter<edm::ParameterSet>("alctPhase1");
  clctParams_ = conf.getParameter<edm::ParameterSet>("clctPhase1");
 
  const bool upgradeME11 = runPhase2_ and isME11_ and runME11Up_;
  const bool upgradeME21 = runPhase2_ and isME21_ and runME21Up_;
  const bool upgradeME31 = runPhase2_ and isME31_ and runME31Up_;
  const bool upgradeME41 = runPhase2_ and isME41_ and runME41Up_;
  const bool upgradeME = upgradeME11 or upgradeME21 or upgradeME31 or upgradeME41;
 
  if (upgradeME) {
    tmbParams_ = conf.getParameter<edm::ParameterSet>("tmbPhase2");
    clctParams_ = conf.getParameter<edm::ParameterSet>("clctPhase2");
    // upgrade ME1/1
    if (upgradeME11) {
      // do not run the Phase-2 ALCT for Run-3
      if (enableAlctPhase2_) {
        alctParams_ = conf.getParameter<edm::ParameterSet>("alctPhase2");
      }
 
      if (runME11ILT_) {
        tmbParams_ = conf.getParameter<edm::ParameterSet>("tmbPhase2GE11");
        clctParams_ = conf.getParameter<edm::ParameterSet>("clctPhase2GEM");
      }
    }
    // upgrade ME2/1
    if (upgradeME21 and runME21ILT_) {
      tmbParams_ = conf.getParameter<edm::ParameterSet>("tmbPhase2GE21");
      clctParams_ = conf.getParameter<edm::ParameterSet>("clctPhase2GEM");
      alctParams_ = conf.getParameter<edm::ParameterSet>("alctPhase2GEM");
    }
  }
}

References alctParams_, CSCTriggerNumbering::chamberFromTriggerLabels(), CSCDetId::chamberName(), clctParams_, commonParams_, cscId_, disableME1a_, enableAlctPhase2_, gangedME1a_, edm::ParameterSet::getParameter(), isME11_, isME21_, isME31_, isME41_, or, CSCTriggerNumbering::ringFromTriggerLabels(), runCCLUT_, runME11ILT_, runME11Up_, runME21ILT_, runME21Up_, runME31Up_, runME41Up_, runPhase2_, theChamber, theCSCName_, theEndcap, theRegion, theRing, theSector, theStation, theSubsector, theTrigChamber, and tmbParams_.

CSCBaseboard() [2/2]

CSCBaseboard::CSCBaseboard

(

)

Constructor for use during testing.

Definition at line 79 of file CSCBaseboard.cc.

                           : theEndcap(1), theStation(1), theSector(1), theSubsector(1), theTrigChamber(1) {
  theRing = 1;
  theChamber = 1;
  runPhase2_ = false;
  disableME1a_ = false;
  gangedME1a_ = false;
}

References disableME1a_, gangedME1a_, runPhase2_, theChamber, and theRing.

~CSCBaseboard()

virtual CSCBaseboard::~CSCBaseboard ( )

virtualdefault

Default destructor.

Member Function Documentation

checkConfigParameters()

void CSCBaseboard::checkConfigParameters ( unsigned int &  var, const unsigned int  var_max, const unsigned int  var_def, const std::string &  var_str  )

protected

Definition at line 92 of file CSCBaseboard.cc.

                                                                   {
  // Make sure that the parameter values are within the allowed range.
  if (var >= var_max) {
    edm::LogError("CSCConfigError") << "+++ Value of " + var_str + ", " << var << ", exceeds max allowed, " << var - 1
                                    << " +++\n"
                                    << "+++ Try to proceed with the default value, " + var_str + "=" << var_def
                                    << " +++\n";
    var = var_def;
  }
}

References trigObjTnPSource_cfi::var.

Referenced by CSCCathodeLCTProcessor::checkConfigParameters(), CSCMotherboard::checkConfigParameters(), and CSCAnodeLCTProcessor::checkConfigParameters().

getCSCName()

std::string CSCBaseboard::getCSCName ( ) const

inline

Definition at line 33 of file CSCBaseboard.h.

{ return theCSCName_; }

References theCSCName_.

Referenced by CSCTriggerPrimitivesBuilder::build().

setCSCGeometry()

void CSCBaseboard::setCSCGeometry

(

const CSCGeometry *

g

)

Definition at line 87 of file CSCBaseboard.cc.

                                                      {
  cscGeometry_ = g;
  cscChamber_ = cscGeometry_->chamber(cscId_);
}

References CSCGeometry::chamber(), cscChamber_, cscGeometry_, cscId_, and g.

Referenced by CSCTriggerPrimitivesBuilder::build().

Member Data Documentation

alctParams_

edm::ParameterSet CSCBaseboard::alctParams_

protected

Definition at line 76 of file CSCBaseboard.h.

Referenced by CSCAnodeLCTProcessor::CSCAnodeLCTProcessor(), and CSCBaseboard().

clctParams_

edm::ParameterSet CSCBaseboard::clctParams_

protected

Definition at line 79 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCCathodeLCTProcessor::CSCCathodeLCTProcessor(), CSCUpgradeCathodeLCTProcessor::CSCUpgradeCathodeLCTProcessor(), and LCTQualityControl::LCTQualityControl().

commonParams_

edm::ParameterSet CSCBaseboard::commonParams_

protected

Definition at line 70 of file CSCBaseboard.h.

Referenced by CSCBaseboard().

cscChamber_

const CSCChamber* CSCBaseboard::cscChamber_

protected

Definition at line 67 of file CSCBaseboard.h.

Referenced by CSCCathodeLCTProcessor::run(), CSCAnodeLCTProcessor::run(), and setCSCGeometry().

cscGeometry_

const CSCGeometry* CSCBaseboard::cscGeometry_

protected

Definition at line 66 of file CSCBaseboard.h.

Referenced by CSCGEMMotherboardME11::run(), CSCGEMMotherboardME21::run(), CSCMotherboardME11::run(), CSCMotherboard::run(), CSCUpgradeMotherboard::run(), setCSCGeometry(), and CSCUpgradeMotherboard::setupGeometry().

cscId_

CSCDetId CSCBaseboard::cscId_

protected

Definition at line 58 of file CSCBaseboard.h.

Referenced by CSCGEMMotherboard::constructLCTsGEM(), CSCGEMMotherboardME11::correlateLCTsGEM(), CSCMotherboardME11::correlateLCTsME11(), CSCBaseboard(), LCTQualityControl::reportErrors(), CSCGEMMotherboardME11::run(), CSCGEMMotherboardME21::run(), CSCUpgradeMotherboard::run(), and setCSCGeometry().

disableME1a_

bool CSCBaseboard::disableME1a_

protected

Phase2: special configuration parameters for ME1a treatment

Definition at line 89 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCCathodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::getDigis(), CSCMotherboardME11::getLCTs1a(), and CSCCathodeLCTProcessor::run().

enableAlctPhase2_

bool CSCBaseboard::enableAlctPhase2_

protected

Definition at line 86 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCUpgradeAnodeLCTProcessor::CSCUpgradeAnodeLCTProcessor(), and CSCUpgradeMotherboard::CSCUpgradeMotherboard().

gangedME1a_

bool CSCBaseboard::gangedME1a_

protected

Definition at line 89 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCGEMMotherboardME11::doesALCTCrossCLCT(), CSCMotherboardME11::doesALCTCrossCLCT(), CSCGEMMotherboardME11::doesWiregroupCrossStrip(), CSCUpgradeMotherboard::getCSCPart(), CSCCathodeLCTProcessor::getDigis(), and CSCCathodeLCTProcessor::run().

infoV

int CSCBaseboard::infoV

protected

Verbosity level: 0: no print (default). 1: print only ALCTs found. 2: info at every step of the algorithm. 3: add special-purpose prints.

Definition at line 64 of file CSCBaseboard.h.

Referenced by CSCAnodeLCTProcessor::accelMode(), CSCAnodeLCTProcessor::bestTrackSelector(), CSCMotherboard::correlateLCTs(), CSCAnodeLCTProcessor::CSCAnodeLCTProcessor(), CSCCathodeLCTProcessor::CSCCathodeLCTProcessor(), CSCMotherboard::CSCMotherboard(), CSCUpgradeCathodeLCTProcessor::findLCTs(), CSCCathodeLCTProcessor::findLCTs(), CSCCathodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::getDigis(), CSCUpgradeAnodeLCTProcessor::ghostCancellationLogic(), CSCAnodeLCTProcessor::ghostCancellationLogic(), CSCUpgradeAnodeLCTProcessor::ghostCancellationLogicOneWire(), CSCAnodeLCTProcessor::ghostCancellationLogicOneWire(), CSCAnodeLCTProcessor::lctSearch(), CSCAnodeLCTProcessor::patternDetection(), CSCCathodeLCTProcessor::patternFinding(), CSCUpgradeCathodeLCTProcessor::preTrigger(), CSCCathodeLCTProcessor::preTrigger(), CSCAnodeLCTProcessor::preTrigger(), CSCCathodeLCTProcessor::pulseExtension(), CSCAnodeLCTProcessor::pulseExtension(), CSCCathodeLCTProcessor::readComparatorDigis(), CSCAnodeLCTProcessor::readoutALCTs(), CSCCathodeLCTProcessor::readoutCLCTs(), CSCMotherboard::readoutLCTs(), CSCAnodeLCTProcessor::readWireDigis(), CSCGEMMotherboardME11::run(), CSCGEMMotherboardME21::run(), CSCMotherboardME11::run(), CSCMotherboard::run(), CSCCathodeLCTProcessor::run(), CSCAnodeLCTProcessor::run(), CSCUpgradeMotherboard::run(), CSCCathodeLCTProcessor::runCCLUT(), and CSCAnodeLCTProcessor::trigMode().

isME11_

bool CSCBaseboard::isME11_

protected

Definition at line 52 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCCathodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::getDigis(), CSCMotherboard::getLCTs(), and CSCCathodeLCTProcessor::run().

isME21_

bool CSCBaseboard::isME21_

protected

Definition at line 53 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCUpgradeAnodeLCTProcessor::getTempALCTQuality(), CSCUpgradeAnodeLCTProcessor::ghostCancellationLogic(), and CSCUpgradeAnodeLCTProcessor::ghostCancellationLogicOneWire().

isME31_

bool CSCBaseboard::isME31_

protected

Definition at line 54 of file CSCBaseboard.h.

Referenced by CSCBaseboard().

isME41_

bool CSCBaseboard::isME41_

protected

Definition at line 55 of file CSCBaseboard.h.

Referenced by CSCBaseboard().

runCCLUT_

bool CSCBaseboard::runCCLUT_

protected

Definition at line 103 of file CSCBaseboard.h.

Referenced by LCTQualityControl::checkValid(), CSCMotherboard::constructLCTs(), CSCGEMMotherboard::constructLCTsGEM(), CSCBaseboard(), CSCCathodeLCTProcessor::CSCCathodeLCTProcessor(), CSCUpgradeCathodeLCTProcessor::findLCTs(), CSCCathodeLCTProcessor::findLCTs(), LCTQualityControl::get_csc_clct_min_max_slope(), and LCTQualityControl::get_csc_lct_min_max_pattern().

runME11ILT_

bool CSCBaseboard::runME11ILT_

protected

Phase2: run the upgrade for the Phase-II ME1/1 integrated local trigger

Definition at line 92 of file CSCBaseboard.h.

Referenced by LCTQualityControl::checkValid(), CSCBaseboard(), and CSCGEMMotherboardME11::CSCGEMMotherboardME11().

runME11Up_

bool CSCBaseboard::runME11Up_

protected

Phase2: run the upgrade local trigger (without GEMs)

Definition at line 98 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCMotherboardME11::CSCMotherboardME11(), and CSCUpgradeMotherboard::CSCUpgradeMotherboard().

runME21ILT_

bool CSCBaseboard::runME21ILT_

protected

Phase2: run the upgrade for the Phase-II ME2/1 integrated local trigger

Definition at line 95 of file CSCBaseboard.h.

Referenced by LCTQualityControl::checkValid(), CSCBaseboard(), CSCGEMMotherboardME21::CSCGEMMotherboardME21(), CSCUpgradeAnodeLCTProcessor::getTempALCTQuality(), CSCUpgradeAnodeLCTProcessor::ghostCancellationLogic(), and CSCUpgradeAnodeLCTProcessor::ghostCancellationLogicOneWire().

runME21Up_

bool CSCBaseboard::runME21Up_

protected

Definition at line 99 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), and CSCUpgradeMotherboard::CSCUpgradeMotherboard().

runME31Up_

bool CSCBaseboard::runME31Up_

protected

Definition at line 100 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), and CSCUpgradeMotherboard::CSCUpgradeMotherboard().

runME41Up_

bool CSCBaseboard::runME41Up_

protected

Definition at line 101 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), and CSCUpgradeMotherboard::CSCUpgradeMotherboard().

runPhase2_

bool CSCBaseboard::runPhase2_

protected

Flag for Phase2 studies.

Definition at line 85 of file CSCBaseboard.h.

Referenced by CSCAnodeLCTProcessor::CSCAnodeLCTProcessor(), CSCBaseboard(), CSCGEMMotherboardME11::CSCGEMMotherboardME11(), CSCGEMMotherboardME21::CSCGEMMotherboardME21(), CSCMotherboardME11::CSCMotherboardME11(), CSCUpgradeAnodeLCTProcessor::CSCUpgradeAnodeLCTProcessor(), CSCUpgradeCathodeLCTProcessor::CSCUpgradeCathodeLCTProcessor(), CSCUpgradeMotherboard::CSCUpgradeMotherboard(), CSCUpgradeCathodeLCTProcessor::findLCTs(), CSCUpgradeAnodeLCTProcessor::getTempALCTQuality(), CSCUpgradeAnodeLCTProcessor::ghostCancellationLogic(), CSCUpgradeAnodeLCTProcessor::ghostCancellationLogicOneWire(), CSCUpgradeCathodeLCTProcessor::preTrigger(), and CSCAnodeLCTProcessor::run().

theChamber

unsigned CSCBaseboard::theChamber

protected

Definition at line 49 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCGEMMotherboard::CSCGEMMotherboard(), CSCUpgradeMotherboard::CSCUpgradeMotherboard(), CSCCathodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::lctSearch(), CSCGEMMotherboard::processGEMCoPads(), CSCCathodeLCTProcessor::readComparatorDigis(), and CSCCathodeLCTProcessor::run().

theCSCName_

std::string CSCBaseboard::theCSCName_

protected

Definition at line 82 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCCathodeLCTProcessor::dumpDigis(), CSCAnodeLCTProcessor::dumpDigis(), CSCMotherboard::findQuality(), CSCGEMMotherboard::findQualityGEMv1(), getCSCName(), CSCAnodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::lctSearch(), CSCCathodeLCTProcessor::run(), and CSCAnodeLCTProcessor::run().

theEndcap

const unsigned CSCBaseboard::theEndcap

protected

Chamber id (trigger-type labels).

Definition at line 42 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCUpgradeMotherboard::debugLUTs(), CSCGEMMotherboardME11::doesALCTCrossCLCT(), CSCMotherboardME11::doesALCTCrossCLCT(), CSCGEMMotherboardME11::doesWiregroupCrossStrip(), CSCCathodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::lctSearch(), and CSCCathodeLCTProcessor::run().

theRegion

unsigned CSCBaseboard::theRegion

protected

Definition at line 47 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCGEMMotherboard::CSCGEMMotherboard(), and CSCGEMMotherboard::processGEMCoPads().

theRing

unsigned CSCBaseboard::theRing

protected

Definition at line 48 of file CSCBaseboard.h.

Referenced by LCTQualityControl::checkValid(), CSCBaseboard(), CSCUpgradeMotherboard::CSCUpgradeMotherboard(), CSCUpgradeMotherboard::getCSCPart(), CSCCathodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::lctSearch(), CSCAnodeLCTProcessor::loadPatternMask(), CSCCathodeLCTProcessor::preTriggerDigisME1a(), CSCCathodeLCTProcessor::preTriggerDigisME1b(), CSCCathodeLCTProcessor::readComparatorDigis(), CSCCathodeLCTProcessor::readoutCLCTsME1a(), CSCCathodeLCTProcessor::readoutCLCTsME1b(), CSCCathodeLCTProcessor::run(), and CSCAnodeLCTProcessor::run().

theSector

const unsigned CSCBaseboard::theSector

protected

Definition at line 44 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCUpgradeMotherboard::debugLUTs(), CSCCathodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::lctSearch(), CSCCathodeLCTProcessor::run(), and CSCAnodeLCTProcessor::run().

theStation

const unsigned CSCBaseboard::theStation

protected

Definition at line 43 of file CSCBaseboard.h.

Referenced by LCTQualityControl::checkValid(), CSCAnodeLCTProcessor::CSCAnodeLCTProcessor(), CSCBaseboard(), CSCGEMMotherboard::CSCGEMMotherboard(), CSCUpgradeMotherboard::CSCUpgradeMotherboard(), CSCUpgradeMotherboard::debugLUTs(), CSCGEMMotherboard::findQualityGEMv1(), CSCUpgradeMotherboard::getCSCPart(), CSCCathodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::lctSearch(), CSCCathodeLCTProcessor::preTriggerDigisME1a(), CSCCathodeLCTProcessor::preTriggerDigisME1b(), CSCGEMMotherboard::processGEMCoPads(), CSCCathodeLCTProcessor::readComparatorDigis(), CSCCathodeLCTProcessor::readoutCLCTsME1a(), CSCCathodeLCTProcessor::readoutCLCTsME1b(), CSCCathodeLCTProcessor::run(), and CSCAnodeLCTProcessor::run().

theSubsector

const unsigned CSCBaseboard::theSubsector

protected

Definition at line 45 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCUpgradeMotherboard::debugLUTs(), CSCCathodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::lctSearch(), CSCCathodeLCTProcessor::run(), and CSCAnodeLCTProcessor::run().

theTrigChamber

const unsigned CSCBaseboard::theTrigChamber

protected

Definition at line 46 of file CSCBaseboard.h.

Referenced by CSCMotherboard::constructLCTs(), CSCGEMMotherboard::constructLCTsGEM(), CSCBaseboard(), CSCUpgradeMotherboard::debugLUTs(), CSCCathodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::getDigis(), CSCAnodeLCTProcessor::lctSearch(), CSCCathodeLCTProcessor::run(), and CSCAnodeLCTProcessor::run().

tmbParams_

edm::ParameterSet CSCBaseboard::tmbParams_

protected

Definition at line 73 of file CSCBaseboard.h.

Referenced by CSCBaseboard(), CSCCathodeLCTProcessor::CSCCathodeLCTProcessor(), CSCGEMMotherboard::CSCGEMMotherboard(), CSCMotherboard::CSCMotherboard(), CSCMotherboardME11::CSCMotherboardME11(), and CSCUpgradeMotherboard::CSCUpgradeMotherboard().