BQ28Z560-R1 datasheet(23/60 Pages) TI1

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bq28z560-R1

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SLUSBD3 – APRIL 2013

BOARD_OFFSET: 0x0009

Instructs the gas gauge to calibrate board offset. During board offset calibration the [BCA] bit is set.

CC_OFFSET: 0x000A

Instructs the gas gauge to calibrate coulomb counter offset. During calibration the [CCA] bit is set.

CC_OFFSET_SAVE: 0x000B

Instructs the gas gauge to save the calibration coulomb counter offset after calibration.

DF_VERSION: 0x000C

Instructs the gas gauge to return the data flash version to addresses 0x00/0x01.

SET_FULLSLEEP: 0x0010

Instructs the gas gauge to set the FULLSLEEP bit in the 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

6–8 ms clock stretch while the oscillator is started and stabilized. A communication to the device in FULLSLEEP

forces the device back to SLEEP mode.

SET_HIBERNATE: 0x0011

Instructs the gas gauge to force the CONTROL_STATUS [HIBERNATE] bit to 1. This enables the gauge to enter

the HIBERNATE power mode after the transition to SLEEP power state is detected and the required conditions

are met. The [HIBERNATE] bit is automatically cleared upon exiting from HIBERNATE mode.

CAUTION

Do not use the Control() subcommand SET_HIBERNATE to disable HIBERNATE

mode. To disable HIBERNATE mode, Hibernate Voltage and Current must be set to 0

in the data flash.

If HIBERNATE mode is initiated, always ensure that the bus line is pulled high by an

external resistor. It is important to prevent the bus line from being pulled low by an

external signal on the line when in HIBERNATE mode; otherwise, the device may latch

and a cold power cycle is required.

CLEAR_HIBERNATE: 0x0012

Instructs the gas gauge to force the CONTROL_STATUS [HIBERNATE] bit to 0. This prevents the gauge from

entering the HIBERNATE power mode after the transition to SLEEP power state is detected. It can also be used

to force the gauge out of HIBERNATE mode.

SET_SHUTDOWN: 0x0013

Sets the CONTROL_STATUS [SHUTDOWN] bit to 1, thereby enabling the gas gauge to enter SHUTDOWN

mode, depending on whether the conditions are met for gas gauge shutdown or not. The delay for shutdown is

1 s, providing there is no charging current detected.

CLEAR_SHUTDOWN: 0x0014

Disables the shutdown by setting this bit to 1, thereby forcing CONTROL_STATUS [SHUTDOWN] to 0.

SET_HDQINTEN: 0x0015

Instructs the gas gauge to set the CONTROL_STATUS [HDQIntEn] bit to 1. This enables the HDQ Interrupt

function. When this subcommand is received, the device will detect any of the interrupt conditions and assert the

interrupt at 1-s intervals until the CLEAR_HDQINTEN command is received or the count of HDQHostIntrTries

has lapsed (default 3).

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