Datasheet

bq27510-G2

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SLUS948 –AUGUST 2010

Table 2. Control( ) Subcommands (continued)

CNTL FUNCTION CNTL DATA SEALED DESCRIPTION

ACCESS

Reserved 0x0006 No Not to be used

PREV_MACWRITE 0x0007 No Returns previous MAC command code

CHEM_ID 0x0008 Yes Reports the chemical identifier of the Impedance Track™ configuration

BOARD_OFFSET 0x0009 No Forces the device to measure and store the board offset

SET_HIBERNATE 0x0011 Yes Forces CONTROL_STATUS [HIBERNATE] to 1

CLEAR_HIBERNATE 0x0012 Yes Forces CONTROL_STATUS [HIBERNATE] to 0

SET_SLEEP+ 0x0013 Yes Forces CONTROL_STATUS [SNOOZE] to 1

CLEAR_SLEEP+ 0x0014 YES Forces CONTROL_STATUS [SNOOZE] to 0

SEALED 0x0020 No Places the bq27510-G2 in SEALED access mode

IT_ENABLE 0x0021 No Enables the Impedance Track™ algorithm

IF_CHECKSUM 0x0022 No Reports the instruction flash checksum

CAL_MODE 0x0040 No Places the bq27510-G2 in calibration mode

RESET 0x0041 No Forces a full reset of the bq27510-G2

CONTROL_STATUS: 0x0000

Instructs the fuel gauge to return status information to control addresses 0x00/0x01. The status word includes the

following information.

Table 3. CONTROL_STATUS Bit Definitions

bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0

High Byte – FAS SS CSV CCA BCA – –

Low Byte – HIBERNATE SNOOZE SLEEP LDMD RUP_DIS VOK QEN

FAS = Status bit indicating the bq27510-G2 is in FULL ACCESS SEALED state. Active when set.

SS = Status bit indicating the bq27510-G2 is in the SEALED State. Active when set.

CSV = Status bit indicating a valid data flash checksum has been generated. Active when set.

CCA = Status bit indicating the bq27510-G2 coulomb counter calibration routine is active. Active when set.

BCA = Status bit indicating the bq27510-G2 board calibration routine is active. Active when set.

HIBERNATE = Status bit indicating a request for entry into HIBERNATE from SLEEP mode. True when set. Default is 0.

SNOOZE = Status bit indicating the bq27510-G2 SLEEP+ mode is enabled. True when set.

SLEEP = Status bit indicating the bq27510-G2 is in SLEEP mode. True when set.

LDMD = Status bit indicating the bq27510-G2 Impedance Track™ algorithm using constant-power mode. True when set. Default is

0 (constant-current mode).

RUP_DIS = Status bit indicating the bq27510-G2 Ra table update status. Updates disabled when set..

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

QEN = Status bit indicating the bq27510-G2 Qmax updates enabled. True when set.

DEVICE_TYPE: 0x0001

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

FW_VERSION: 0x0002

Instructs the fuel gauge to return the firmware version to addresses 0x00/0x01.

HW_VERSION: 0x0003

Instructs the fuel gauge to return the hardware version to addresses 0x00/0x01.