SLUUAQ3 User guide

SLUUAQ3A April 2016 – October 2022 BQ4050

13.1 0x00 ManufacturerAccess() and 0x44 ManufacturerBlockAccess()

ManufacturerBlockAccess() provides a method of reading and writing data in the Manufacturer Access System (MAC). This block MAC access method is a new standard for the BQ40zxy family. The MAC command is sent via ManufacturerBlockAccess() by the SMBus block protocol. The result is returned on ManufacturerBlockAccess() via an SMBus block read.

Example: Send a MAC Gauging() to enable/disable firmware control of the CHG/DSG/PCHG FETs via ManufacturerBlockAccess().

With firmware control of the CHG/DSG/PCHG FETs enabled, send Gauging() (0x0022) to ManufacturerBlockAccess().
1. MBus block write. Command = 0x44. Data = 22 00 (Data must be sent in Little Endian.)
FET Control is disabled, ManufacturingStatus()[FET_EN] = 0.

Example: Read HardwareVersion() (0x0003) via ManufacturerBlockAccess()

Send HardwareVersion() to ManufacturerBlockAccess().
1. SMBus block write. Command = 0x44. Data sent = 03 00 (Data must be sent in Little Endian.)
Read the result from ManufacturerBlockAccess().
1. SMBus block read. Command = 0x44. Data read = 03 00 00 01 (Each data entity is returned in Little Endian.)
2. The first 2 bytes, “03 00”, is the MAC command.
3. The second 2 bytes, “00 01”, is the hardware version returning in Little Endian. That is 0x0100, HardwareVersion() 100.

For backwards compatibility with the BQ30zxy families, sending MAC commands via ManufacturerAccess() (0x00) as well as the returning data on ManufacturerData() are supported in BQ4050. Note that MAC commands are sent through ManufacturerAccess() (0x00) by an SMBus write word protocol. The result reading from ManufacturerData() does not include the MAC command.

Example: Send a MAC Gauging() to enable/disable firmware control of the CHG/DSG/PCHG FETs via ManufacturerBlockAccess().

With firmware control of the CHG/DSG/PCHG FETs enabled, send Gauging() (0x0022) to ManufacturerBlockAccess().
1. SMBus word write. Command = 0x00. Data = 00 22
FET Control is disabled, ManufacturingStatus()[FET_EN] = 0.

Example: Read HardwareVersion() (0x0003) via ManufacturerBlockAccess()

Send HardwareVersion() to ManufacturerBlockAccess().
1. SMBus block write. Command = 0x00. Data sent = 00 03
Read the result from ManufacturerData().
1. SMBus block read. Command = 0x06. Data read = 00 01
2. That is 0x0100, HardwareVersion() 100.

The ManufacturerAccess() and ManufacturerBlockAccess() are interchangeable. The result can be read from ManufacturerData() or ManufacturerBlockAccess() regardless of how the MAC command is sent.

Table 13-1 ManufacturerAccess() Command List

Command	Function	Access	Format	Data Read on 0x44 or 0x23	Data Read on 0x2F	Available in SEALED Mode	Type	Unit
0x0001	DeviceType	R	Block	Yes	—	Yes	Hex	—
0x0002	FirmwareVersion	R	Block	Yes	—	Yes	Hex	—
0x0003	HardwareVersion	R	Block	Yes	—	Yes	Hex	—
0x0004	IFChecksum	R	Block	Yes	—	Yes	Hex	—
0x0005	StaticDFSignature	R	Block	Yes	—	Yes	Hex	—
0x0009	AllDFSignature	R	Block	Yes	—	Yes	Hex	—
0x0010	ShutdownMode	W	—	—	—	Yes	Hex	—
0x0011	SleepMode	W	—	—	—	—	Hex	—
0x001D	FuseToggle	W	—	—	—	—	Hex	—
0x001E	PrechargeFET	W	—	—	—	—	Hex	—
0x001F	ChargeFET	W	—	—	—	—	Hex	—
0x0020	DischargeFET	W	—	—	—	—	Hex	—
0x0022	FETControl	W	—	—	—	—	Hex	—
0x0023	LifetimeDataCollection	W	—	—	—	—	Hex	—
0x0024	PermanentFailure	W	—	—	—	—	Hex	—
0x0025	BlackBoxRecorder	W	—	—	—	—	Hex	—
0x0026	Fuse	W	—	—	—	—	Hex	—
0x0028	LifetimeDataReset	W	—	—	—	—	Hex	—
0x0029	PermanentFailureData Reset	W	—	—	—	—	Hex	—
0x002E	LifetimeDataFlush	W	—	—	—	—	Hex	—
0x002F	LifetimeDataSpeedUp Mode	W	—	—	—	—	Hex	—
0x002A	BlackBoxRecorderReset	W	—	—	—	—	Hex	—
0x002D	CalibrationMode	W	—	—	—	—	Hex	—
0x0030	SealDevice	W	—	—	—	—	Hex	—
0x0035	SecurityKeys	R/W	Block	Yes	—	—	Hex	—
0x0037	AuthenticationKey	R/W	Block	—	Yes	—	Hex	—
0x0041	DeviceReset	W	—	—	—	—	Hex	—
0x0050	SafetyAlert	R	Block	Yes	—	Yes	Hex	—
0x0051	SafetyStatus	R	Block	Yes	—	Yes	Hex	—
0x0052	PFAlert	R	Block	Yes	—	Yes	Hex	—
0x0053	PFStatus	R	Block	Yes	—	Yes	Hex	—
0x0054	OperationStatus	R	Block	Yes	—	Yes	Hex	—
0x0055	ChargingStatus	R	Block	Yes	—	Yes	Hex	—
0x0056	GaugingStatus	R	Block	Yes	—	Yes	Hex	—
0x0057	ManufacturingStatus	R	Block	Yes	—	Yes	Hex	—
0x0058	AFERegister	R	Block	Yes	—	Yes	Hex	—
0x0060	LifetimeDataBlock1	R	Block	Yes	—	Yes	Mixed	Mixed
0x0061	LifetimeDataBlock2	R	Block	Yes	—	Yes	Mixed	Mixed
0x0062	LifetimeDataBlock3	R	Block	Yes	—	Yes	Mixed	Mixed
0x0070	ManufacturerInfo	R	Block	Yes	—	Yes	Hex	—
0x0071	DAStatus1	R	Block	Yes	—	Yes	Mixed	Mixed
0x0072	DAStatus2	R	Block	Yes	—	Yes	Mixed	Mixed
0x007A	ManufacturerInfo2	R	Block	Yes	—	Yes	Hex	—
0x0F00	ROMMode	W	—	—	—	—	Hex	—
0xF080	ExitCalibrationOutput	R/W	Block	Yes	—	—	Hex	—
0xF081	OutputCCandADCfor Calibration	R/W	Block	Yes	—	—	Hex	—
0xF082	OutputShortedCCand ADCforCalibration	R/W	Block	Yes	—	—	Hex	—