BQ34Z100 Datasheet, PDF (12/50 Pages) Texas Instruments – Wide Range Fuel Gauge with Impedance Track™ Technology

bq34z100
SLUSAU1 – MAY 2012
RESET_DATA: 0x0005
Instructs the fuel gauge to return the number of resets performed to addresses 0x00/0x01.
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PREV_MACWRITE: 0x0007
Instructs the fuel gauge to return the previous command written to addresses 0x00/0x01. The value returned is
limited to less than 0x0020.
CHEM ID: 0x0008
Instructs the fuel gauge to return the chemical identifier for the Impedance Track configuration to addresses
0x00/0x01.
BOARD_OFFSET: 0x0009
Instructs the fuel gauge to calibrate board offset. During board offset calibration the [BCA] bit is set.
CC_OFFSET: 0x000A
Instructs the fuel gauge to calibrate the coulomb counter offset. During calibration the [CCA] bit is set
CC_OFFSET_SAVE: 0x000B
Instructs the fuel gauge to save calibrate the coulomb counter offset after calibration.
DF_VERSION: 0x000C
Instructs the fuel gauge to return the data flash version to addresses 0x00/0x01.
SET_FULLSLEEP: 0x0010
Instructs the fuel gauge to set the FULLSLEEP bit in Control Status register to 1. This allows the gauge to enter
the FULLSLEEP power mode after the transition to SLEEP power state is detected. In FULLSLEEP mode less
power is consumed by disabling an oscillator circuit used by the communication engines. For HDQ
communication one host message will be dropped. For I²C communications, the first I²C message will incur a 6
ms–8 ms clock stretch while the oscillator is started and stabilized. A communication to the device in
FULLSLEEP will force the part back to the SLEEP mode.
STATIC_CHEM_DF_CHKSUM: 0x0017
Instructs the fuel gauge to calculate chemistry checksum as a 16-bit unsigned integer sum of all static chemistry
data. The most significant bit (MSB) of the checksum is masked yielding a 15-bit checksum. This checksum is
compared with the value stored in the data flash Static Chem DF Checksum. If the value matches, the MSB will
be cleared to indicate pass. If it does not match, the MSB will be set to indicate failure.
SEALED: 0x0020
Instructs the fuel gauge to transition from UNSEALED state to SEALED state. The fuel gauge should always be
set to SEALED state for use in customer’s end equipment.
IT ENABLE: 0x0021
Forces the fuel gauge to begin the Impedance Track algorithm, sets bit 2 of UpdateStatus and causes the [VOK]
and [QEN] flags to be set in the CONTROL STATUS register. [VOK] is cleared if the voltages are not suitable for
a Qmax update. Once set, [QEN] cannot be cleared. This command is only available when the fuel gauge is
UNSEALED and is typically enabled at the last step of production after system test is completed.
RESET: 0x0041
Instructs the fuel gauge to perform a full reset. This command is only available when the fuel gauge is
UNSEALED.
EXIT_CAL: 0x0080
Instructs the fuel gauge to exit calibration mode.
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