SLUUA65E User guide

SLUUA65E april 2014 – june 2023 BQ28Z610

12.2 0x00, 0x01 AltManufacturerAccess() and 0x3E, 0x3F AltManufacturerAccess()

AltManufacturerAccess() provides a method of reading and writing data in the Manufacturer Access System (MAC). The MAC command is sent via AltManufacturerAccess() by a block protocol. The result is returned on AltManufacturerAccess() via a block read.

Commands are set by writing to registers 0x00/0x01. On valid word access, the MAC command state is set, and commands 0x3E and 0x3F are used for MAC commands. These new addresses work the same as 0x00 and 0x01, but are primarily intended for block writes and reads.

Example: Send a MAC Gauging() to enable IT via AltManufacturerAccess().

With Impedance Track disabled, send Gauging() (0x0021) to AltManufacturerAccess()
1. I²C Write, start address = 0x3E (or 0x00). Data = 21 00 (data must be sent in Little Endian).
IT is enabled, ManufacturingStatus()[GAUGE_EN] = 1.

Example: Read Chemical ID() (0x0006) via AltManufacturerAccess().

Send Chemical ID() to AltManufacturerAccess().
1. I²C Write, start address = 0x3E (or 0x00). Data sent = 06 00 (data must be sent in Little Endian).
Read the result from AltManufacturerAccess() and MfgMACData().
1. I²C Read, start address = 0x3E length = 36 bytes. First 4 bytes of the response will be 06 00 10 12.
2. The first two bytes "06 00" is the MAC command (for verification).
3. The second two bytes "10 12" are the Chem ID in Little Endian. That is, 0x1210 for ChemID 1210.
4. The last two bytes of the 36-byte block will be the checksum and length. The length in this case will be 6. The checksum is 0xFF – (sum of the first length – 2 bytes). The length and checksum are used to validate the block response.

It is recommended to send “command only” operations to 0x00 and 0x01, and to set the command for a read back in the same way. The reason for this is that it can always reset any legacy support options that may be in effect; whereas, some legacy support options use 0x3E and 0x3F for other purposes. However, 0x3E and 0x3F can always safely be used for block reads. For backward compatibility, a request of the device number or version will report a value for read on 0x00/0x01. The response word for both MAC command DEV and VERSION (0x0001 and 0x0002) should report 0xFFA5 as the legacy response. This is meant as a token to indicate to the host that the real response is on the extended block. “Command only” operations take place immediately after the word write.

Table 12-2 AltManufacturerAccess() Command List

Command	Function	Access	Format	Data Read on MACData()	Not Available in SEALED Mode	Type	Units
0x0001	DeviceType	R	Block	√	—	hex	—
0x0002	FirmwareVersion	R	Block	√	—	hex	—
0x0003	HardwareVersion	R	Block	√	—	hex	—
0x0004	IFChecksum	R	Block	√	—	hex	—
0x0005	StaticDFSignature	R	Block	√	—	hex	—
0x0006	ChemID	R	Block	√	—	hex	—
0x0007	Prev_MacWrite	R	Block	√	—	hex	—
0x0008	StaticChemDFSignature	R	Block	√	—	hex	—
0x0009	AllDFSignature	R	Block	√	—	hex	—
0x0010	ShutdownMode	W	—	—	—	hex	—
0x011	SleepMode	W	—	—	—	hex	—
0x012	Reset	W	—	—	—	hex	—
0x013	Auto_CAL_MAC	W	—	—	—	hex	—
0x001F	ChargeFET	W	—	—	√	hex	—
0x0020	DischargeFET	W	—	—	√	hex	—
0x0021	Gauging (IT Enable)	W	—	—	√	hex	—
0x0022	FETControl	W	—	—	√	hex	—
0x0023	LifetimeDataCollection	W	—	—	√	hex	—
0x0024	PermanentFailure	W	—	—	√	hex	—
0x0028	LifetimeDataReset	W	—	—	√	hex	—
0x0029	PermanentFailureDataReset	W	—	—	√	hex	—
0x002D	CalibrationMode	W	—	—	√	hex	—
0x002E	LifetimeDataFlush	W	—	—	√	hex	—
0x002F	LifetimeDataTest	W	—	—	√	hex	—
0x0030	SealDevice	W	—	—	—	hex	—
0x0035	SecurityKeys	R/W	Block	√	√	hex	—
0x0037	AuthenticationKey	W	Block	—	√	hex	—
0x0041	Reset	W	—	—	—	hex	—
0x004A	Device Name	R/W	Block	√	—	hex	—
0x004B	Device Chem	R/W	Block	√	—	hex	—
0x004C	Manufacturer Name	R/W	Block	√	—	hex	—
0x004D	Manufacturer Date	R/W	Block	√	—	hex	—
0x004E	Serial Number	R/W	—	√	—	hex	—
0x0050	SafetyAlert	R	Block	√	—	hex	—
0x0051	SafetyStatus	R	Block	√	—	hex	—
0x0052	PFAlert	R	Block	√	—	hex	—
0x0053	PFStatus	R	Block	√	—	hex	—
0x0054	OperationStatus	R	Block	√	—	hex	—
0x0055	ChargingStatus	R	Block	√	—	hex	—
0x0056	GaugingStatus	R	Block	√	—	hex	—
0x0057	ManufacturingStatus	R	Block	√	—	hex	—
0x0058	AFERegister	R	Block	√	—	hex	—
0x0060	LifetimeDataBlock1	R	Block	√	—	Mixed	Mixed
0x0070	ManufacturerData	R	Block	√	—	hex	—
0x0071	DAStatus1	R	Block	√	—	Mixed	Mixed
0x0072	DAStatus2	R	Block	√	—	Mixed	Mixed
0x0073	ITStatus1	R	Block	√	—	Mixed	Mixed
0x0074	ITStatus2	R	Block	√	—	Mixed	Mixed
0x0075	ITStatus3	R	Block	√	—	Mixed	Mixed
0x0076	CB Status	R	Block	√	—	hex	—
0x0077	FCC_SOH	R	Block	√	—	hex	—
0x01yy	DFAccessRowAddress	R/W	Block	—	√	hex	—
0x0F00	ROMMode	W	—	—	√	hex	—
0xF080	ExitCalibrationOutput	R/W	Block	√	√	hex	—
0xF081	OutputCCandADCforCalibration	R/W	Block	√	√	hex	—
0xF082	OutputShortedCCandADC forCalibration	R/W	Block	√	√	hex	—