BQ34Z100 Datasheet, PDF (38/50 Pages) Texas Instruments – Wide Range Fuel Gauge with Impedance Track™ Technology

bq34z100
SLUSAU1 – MAY 2012
www.ti.com
DataFlashBlock(): 0x3f
UNSEALED Access: If BlockDataControl has been set to 0x00, this command directs which data flash block will
be accessed by the BlockData() command. Writing a 0x00 to DataFlashBlock() specifies the BlockData()
command will transfer authentication data. Issuing a 0x01 instructs the BlockData() command to transfer
Manufacturer Data.
SEALED Access: This command directs which data flash block will be accessed by the BlockData() command.
Writing a 0x00 to DataFlashBlock() specifies the BlockData() command will transfer authentication data. Issuing a
0x01 instructs the BlockData() command to transfer Manufacturer Data.
AuthenticateData/BlockData(): 0x40…0x53
UNSEALED Access: This data block has a dual function. It is used for the authentication challenge and response
and is part of the 32-byte data block when accessing data flash.
SEALED Access: This data block is used for authentication challenge and response and is part of the 32-byte
data block when accessing the Manufacturer Data.
AuthenticateChecksum/BlockData(): 0x54
UNSEALED Access: This byte holds the authenticate checksum when writing the authentication challenge to the
bq34z100 and is part of the 32-byte data block when accessing data flash.
SEALED Access: This byte holds the authentication checksum when writing the authentication challenge to the
bq34z100 and is part of the 32-byte data block when accessing Manufacturer Data.
BlockData(): 0x55…0x5f
UNSEALED Access: This data block is the remainder of the 32-byte data block when accessing data flash.
SEALED Access: This data block is the remainder of the 32-byte data block when accessing Manufacturer
Data.
BlockDataChecksum(): 0x60
UNSEALED Access: This byte contains the checksum on the 32 bytes of block data read or written to data flash.
SEALED Access: This byte contains the checksum for the 32 bytes of block data written to Manufacturer Data.
BlockDataControl(): 0x61
UNSEALED Access: This command is used to control data flash access mode. Writing 0x00 to this command
enables BlockData() to access general data flash. Writing a 0x01 to this command enables SEALED mode
operation of DataFlashBlock().
DeviceNameLength(): 0x62
UNSEALED and SEALED Access: This byte contains the length of the Device Name.
DeviceName(): 0x63…0x6A
UNSEALED and SEALED Access: This block contains the device name that is programmed in Device Name.
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