BQ28Z560-R1 datasheet(22/60 Pages) TI1

22 / 60 page

bq28z560-R1

SLUSBD3 – APRIL 2013

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HDQIntEn = Status bit indicating the HDQ interrupt function is active. True when set. Default is 0.

SHUTDOWN = Status bit indicating the bq28z560-R1 is in SHUTDOWN mode. True when set. Default is 0.

HIBERNATE = Status bit indicating a request for entry into HIBERNATE from SLEEP mode has been issued. True when set. Default is

0. Control bit when set will put the bq28z560-R1 into the lower power state of SLEEP mode. It is not possible to monitor

this bit.

Status bit indicating the bq28z560-R1 is in FULLSLEEP mode. True when set. The state can be detected by monitoring

FULLSLEEP =

the power used by the bq28z560-R1 because any communication will automatically clear it.

SLEEP = Status bit indicating the bq28z560-R1 is in SLEEP mode. True when set.

LDMD = Status bit indicating the bq28z560-R1 Impedance Track algorithm using CONSTANT POWER mode. True when set.

Default is 0 (CONSTANT CURRENT mode).

RUP_DIS = Status bit indicating the bq28z560-R1 Ra table updates are disabled. True when set.

VOK = Status bit indicating cell voltages are OK for Qmax updates. True when set.

QEN = Status bit indicating the bq28z560-R1 Qmax updates are enabled. True when set.

Control(): 0x00/0x01

Issuing a Control() command requires a subsequent 2-byte subcommand. These additional bytes specify the

particular control function desired. The Control() command allows the system to control specific features of the

bq28z560-R1 during normal operation and additional features when the device is in access modes, as described

in Table 6.

Table 6. Control() Subcommands

CNTL FUNCTION

CNTL DATA

SEALED ACCESS

DESCRIPTION

SET_FULLSLEEP

0x0010

Yes

Sets the [FULLSLEEP] bit in Control Status register to 1

SET_HIBERNATE

0x0011

Yes

Forces CONTROL_STATUS [HIBERNATE] to 1

CLEAR_HIBERNATE

0x0012

Yes

Forces CONTROL_STATUS [HIBERNATE] to 0

SET_SHUTDOWN

0x0013

Yes

Forces CONTROL_STATUS [SHUTDOWN] to 1

CLEAR_SHUTDOWN

0x0014

Yes

Forces CONTROL_STATUS [SHUTDOWN] to 0

HOST_DISCONNECT

0x0018

Yes

Forces the DOUT pin low to disable discharge.

HOST_CONNECT

0x0019

Yes

Clears DSGFETOFF allowing DOUT to go high if no

other conditions force it low

DEVICE_TYPE: 0x0001

Instructs the gas gauge to return the device type to addresses 0x00/0x01.

FW_VERSION: 0x0002

Instructs the gas gauge to return the firmware version to addresses 0x00/0x01. The bq28z560-R1 firmware

version return is 0x0214.

HW_VERSION: 0x0003

Instructs the gas gauge to return the hardware version to addresses 0x00/0x01. For bq28z560-R1, 0x0060 is

returned. For a firmware upgrade from bq28z560-R1, 0x0000 or 0x0060 is returned.

RESET_DATA: 0x0005

Instructs the gas gauge to return the number of resets performed to addresses 0x00/0x01.

PREV_MACWRITE: 0x0007

Instructs the gas 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 gas gauge to return the chemical identifier for the Impedance Track configuration to addresses

0x00/0x01.

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