bq20z40 bq20z45 SBS Command

from http://www.ti.com/lit/er/sluu313a/sluu313a.pdf

A.2       Authenticate (0x2f)

This read- or write-block function allows the host to authenticate a bq20z40/bq20z45-based battery using an SHA-1 authentication transform with a length of 20 data bytes + 1 length byte. See the Using SHA-1 in bq20zxx Family of Gas Gauges application report (SLUA359) for detailed information.

Table A-37. Authenticate

SBS Cmd.	Mode	Name	Format	Size in Bytes	Min Value	Max Value	Default Value	Unit
0x2f	R/W	Authenticate	String	20 + 1	–	–	–	–

A.3       CellVoltage4..1 (0x3c..0x3f)

These read-word functions return an unsigned value of the calculated individual cell voltages, in mV, with a range of 0 to 65,535. CellVoltage1 corresponds to the bottommost series cell element, whereas CellVoltage4 corresponds to the topmost series cell element.

Table A-38. CellVoltage4..1

SBS Cmd.	Mode	Name	Format	Size in Bytes	Min Value	Max Value	Default Value	Unit
0x3c	R	CellVoltage4	Unsigned integer	2	0	65,535	–	mV
0x3d		CellVoltage3					–
0x3e		CellVoltage2					–
0x3f		CellVoltage1					–

A.4       SBS Command Values

Table A-39. SBS COMMANDS

SBS Cmd	Mode	Name	Format	Size in Bytes	Min Value	Max Value	Default Value	Unit
0x00	R/W	ManufacturerAccess	Hex	2	0x0000	0xffff	–	–
0x01	R/W	RemainingCapacityAlarm	Unsigned integer	2	0	65,535	300	mAh or 10 mWh
0x02	R/W	RemainingTimeAlarm	Unsigned integer	2	0	65,535	10	min
0x03	R/W	BatteryMode	Hex	2	0x0000	0xe383	–	–
0x04	R/W	AtRate	Integer	2	–32,768	32,767	–	mA or 10 mW
0x05	R	AtRateTimeToFull	Unsigned integer	2	0	65,534	–	min
0x06	R	AtRateTimeToEmpty	Unsigned integer	2	0	65,534	–	min
0x07	R	AtRateOK	Unsigned integer	2	0	65,535	–	–
0x08	R	Temperature	Unsigned integer	2	0	65,535	–	0.1 °K
0x09	R	Voltage	Unsigned integer	2	0	65,535	–	mV
0x0a	R	Current	Integer	2	–32,768	32,767	–	mA
0x0b	R	AverageCurrent	Integer	2	–32,768	32,767	–	mA
0x0c	R	MaxError	Unsigned integer	1	0	100	–	%
0x0d	R	RelativeStateOfCharge	Unsigned integer	1	0	100	–	%

SBS Cmd	Mode	Name	Format	Size in Bytes	Min Value	Max Value	Default Value	Unit
0x0e	R	AbsoluteStateOfCharge	Unsigned integer	1	0	100+	–	%
0x0f	R/W	RemainingCapacity	Unsigned integer	2	0	65,535	–	mAh or 10 mWh
0x10	R	FullChargeCapacity	Unsigned integer	2	0	65,535	–	mAh or 10 mWh
0x11	R	RunTimeToEmpty	Unsigned integer	2	0	65,534	–	min
0x12	R	AverageTimeToEmpty	Unsigned integer	2	0	65,534	–	min
0x13	R	AverageTimeToFull	Unsigned integer	2	0	65,534	–	min
0x14	R	ChargingCurrent	Unsigned integer	2	0	65,534	–	mA
0x15	R	ChargingVoltage	Unsigned integer	2	0	65,534	–	mV
0x16	R	BatteryStatus	Hex	2	0x0000	0xdbff	–	–
0x17	R/W	CycleCount	Unsigned integer	2	0	65,535	–	–
0x18	R/W	DesignCapacity	Unsigned integer	2	0	65,535	4400	mAh or 10 mWh
0x19	R/W	DesignVoltage	Unsigned integer	2	0	65,535	14,400	mV
0x1a	R/W	SpecificationInfo	Hex	2	0x0000	0xffff	0x0031	–
0x1b	R/W	ManufactureDate	Unsigned integer	2	–	–	01-Jan-1980	–
0x1c	R/W	SerialNumber	Hex	2	0x0000	0xffff	0x0001	–
0x20	R/W	ManufacturerName	String	20 + 1	–	–	Texas Inst.	–
0x21	R/W	DeviceName	String	20 + 1	–	–	bq20z40/bq20z45	–
0x22	R/W	DeviceChemistry	String	4 + 1	–	–	LION	–
0x23	R/W	ManufacturerData	String	14 + 1	–	–	–	–
0x2f	R/W	Authenticate	String	20 + 1	–	–	–	–
0x3c	R	CellVoltage4	Unsigned integer	2	0	65,535	–	mV
0x3d	R	CellVoltage3	Unsigned integer	2	0	65,535	–	mV
0x3e	R	CellVoltage2	Unsigned integer	2	0	65,535	–	mV
0x3f	R	CellVoltage1	Unsigned integer	2	0	65,535	–	mV

B.1       DataFlashSubClassPage1..8 (0x78..0x7f)

These commands are used to access the consecutive 32-byte pages of each subclass. DataFlashSubClassPage1 gets bytes 0 to 31 of the subclass, DataFlashSubClassPage2 gets bytes 32 to 63, and so on.

NOTE: Any DF location deemed reserved responds with a NACK unless the bq20z40/bq20z45 is in the correct security state to allow access.

Table B-20. DataFlashSubClass1..8

SBS Cmd.	Mode	Name	Format	Size in Bytes	Subclass Offset	Subclass Offset	Default Value	Unit
0x78	R/W	DataFlashSubClassPage1	Hex	32	0	31	–	–

SBS Cmd.	Mode	Name	Format	Size in Bytes	Subclass Offset	Subclass Offset	Default Value	Unit
0x79	R/W	DataFlashSubClassPage2	Hex	32	32	63	–	–
0x7a	R/W	DataFlashSubClassPage3	Hex	32	64	95	–	–
0x7b	R/W	DataFlashSubClassPage4	Hex	32	96	127	–	–
0x7c	R/W	DataFlashSubClassPage5	Hex	32	128	159	–	–
0x7d	R/W	DataFlashSubClassPage6	Hex	32	160	191	–	–
0x7e	R/W	DataFlashSubClassPage7	Hex	32	192	223	–	–
0x7f	R/W	DataFlashSubClassPage8	Hex	32	224	255	–	–

B.1       Extended SBS Command Values

Table B-21. EXTENDED SBS COMMANDS

SBS Cmd	Mode	Name	Format	Size in Bytes	Min Value	Max Value	Default Value	Unit
0x45	R	AFEData	String	11+1	—	—	—	ASCII
0x46	R/W	FETControl	hex	2	0x00	0xff	—	—
0x4f	R	StateOfHealth	hex	2	0x0000	0xffff	—	—
0x51	R	SafetyStatus	hex	2	0x0000	0xffff	—	—
0x53	R	PFStatus	hex	2	0x0000	0xffff	—	—
0x54	R	OperationStatus	hex	2	0x0000	0xffff	—	—
0x55	R	ChargingStatus	hex	2	0x0000	0xffff	—	—
0x57	R	ResetData	hex	2	0x0000	0xffff	—	—
0x58	R	WDResetData	unsigned int	2	0	65535	—	—
0x5a	R	PackVoltage	unsigned int	2	0	65535	—	mV
0x5d	R	AverageVoltage	unsigned int	2	0	65535	—	mV
0x5e	R	TS1Temperature	integer	2	–400	1200	—	0.1°C
0x5f	R	TS2Temperature	integer	2	–400	1200	—	0.1°C
0x60	R/W	UnSealKey	hex	4	0x00000000	0xffffffff	—	—
0x61	R/W	FullAccessKey	hex	4	0x00000000	0xffffffff	—	—
0x62	R/W	PFKey	hex	4	0x00000000	0xffffffff	—	—
0x63	R/W	AuthenKey3	hex	4	0x00000000	0xffffffff	—	—
0x64	R/W	AuthenKey2	hex	4	0x00000000	0xffffffff	—	—
0x65	R/W	AuthenKey1	hex	4	0x00000000	0xffffffff	—	—
0x66	R/W	AuthenKey0	hex	4	0x00000000	0xffffffff	—	—
0x69	R	SafetyStatus2	hex	2	0x0000	0x000f	—	—
0x6b	R	PFStatus2	hex	2	0x0000	0x000f	—	—
0x6c	R/W	ManufBlock1	string	20	—	—	—	—
0x6d	R/W	ManufBlock2	string	20	—	—	—	—
0x6e	R/W	ManufBlock3	string	20	—	—	—	—
0x6f	R/W	ManufBlock4	string	20	—	—	—	—
0x70	R/W	ManufacturerInfo	String	31+1	—	—	—	—
0x71	R/W	SenseResistor	unsigned int	2	0	65535	—	μΩ

SBS Cmd	Mode	Name	Format	Size in Bytes	Min Value	Max Value	Default Value	Unit
0x72	R	TempRange	hex	2	0x0000	0xffff	—	—
0x73	R	LifetimeData	String	32+1	—	—	—	—
0x77	R/W	DataFlashSubClassID	hex	2	0x0000	0xffff	—	—
0x78	R/W	DataFlashSubClassPage1	hex	32	—	—	—	—
0x79	R/W	DataFlashSubClassPage2	hex	32	—	—	—	—
0x7a	R/W	DataFlashSubClassPage3	hex	32	—	—	—	—
0x7b	R/W	DataFlashSubClassPage4	hex	32	—	—	—	—
0x7c	R/W	DataFlashSubClassPage5	hex	32	—	—	—	—
0x7d	R/W	DataFlashSubClassPage6	hex	32	—	—	—	—
0x7e	R/W	DataFlashSubClassPage7	hex	32	—	—	—	—
0x7f	R/W	DataFlashSubClassPage8	hex	32	—	—	—	—