Datasheet

DATACOMMANDS
StandardDataCommands
bq27510-G1
SLUS927–APRIL2009..................................................................................................................................................................................................... www.ti.com
Thebq27510usesaseriesof2-bytestandardcommandstoenablesystemreadingandwritingofbattery
information.Eachstandardcommandhasanassociatedcommand-codepair,asindicatedinTable1.Because
eachcommandconsistsoftwobytesofdata,twoconsecutiveI
2
Ctransmissionsmustbeexecutedbothto
initiatethecommandfunction,andtoreadorwritethecorrespondingtwobytesofdata.Additionaloptionsfor
transferringdata,suchasspooling,aredescribedinSection,I2CINTERFACE.Standardcommandsare
accessibleinNORMALoperation.Read/Writepermissionsdependontheactiveaccessmode,SEALEDor
UNSEALED(fordetailsontheSEALEDandUNSEALEDstates,refertoSectionAccessModes.)
Table1.StandardCommands
NAMECOMMANDCODEUNITSSEALEDACCESSUNSEALEDACCESS
Control()CNTL0x00/0x01N/AR/WR/W
AtRate()AR0x02/0x03mAR/WR/W
AtRateTimeToEmpty()ARTTE0x04/0x05MinutesRR/W
Temperature()TEMP0x06/0x070.1KRR/W
Voltage()VOLT0x08/0x09mVRR/W
Flags()FLAGS0x0a/0x0bN/ARR/W
NominalAvailableCapacity()NAC0x0c/0x0dmAhRR/W
FullAvailableCapacity()FAC0x0e/0x0fmAhRR/W
RemainingCapacity()RM0x10/0x11mAhRR/W
FullChargeCapacity()FCC0x12/0x13mAhRR/W
AverageCurrent()AI0x14/0x15mARR/W
TimeToEmpty()TTE0x16/0x17MinutesRR/W
TimeToFull()TTF0x18/0x19MinutesRR/W
StandbyCurrent()SI0x1a/0x1bmARR/W
StandbyTimeToEmpty()STTE0x1c/0x1dMinutesRR/W
MaxLoadCurrent()MLI0x1e/0x1fmARR/W
MaxLoadTimeToEmpty()MLTTE0x20/0x21MinutesRR/W
AvailableEnergy()AE0x22/0x23mWhrRR/W
AveragePower()AP0x24/0x25mWRR/W
TTEatConstantPower()TTECP0x26/0x27MinutesRR/W
ReservedRSVD0x28/0x29N/ARR/W
CycleCount()CC0x2a/0x2bCountsRR/W
StateOfCharge()SOC0x2c/0x2d%RR/W
Control():0x00/0x01
IssuingaControl()commandrequiresasubsequent2-bytesubcommand.Theseadditionalbytesspecifythe
particularcontrolfunctiondesired.TheControl()commandallowsthesystemtocontrolspecificfeaturesofthe
bq27510duringnormaloperationandadditionalfeatureswhenthebq27510isindifferentaccessmodes,as
describedinTable2.
Table2.Control()Subcommands
CNTLFUNCTIONCNTLDATASEALEDDESCRIPTION
ACCESS
CONTROL_STATUS0x0000YesReportsthestatusofDFChecksum,Hibernate,IT,etc.
DEVICE_TYPE0x0001YesReportsthedevicetype(bq27510)
FW_VERSION0x0002YesReportsthefirmwareversiononthedevicetype
HW_VERSION0x0003YesReportsthehardwareversionofthedevicetype
DF_CHECKSUM0x0004NoEnablesadataflashchecksumtobegeneratedandreportsonaread
RESET_DATA0x0005NoReturnsresetdata
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