BQ28Z560-R1 datasheet(24/60 Pages) TI1

24 / 60 page

bq28z560-R1

SLUSBD3 – APRIL 2013

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CLEAR_HDQINTEN: 0x0016

Instructs the gas gauge to set the CONTROL_STATUS [HDQIntEn] bit to 0. This disables the HDQ Interrupt

function.

STATIC_CHEM_DF_CHKSUM: 0x0017

Instructs the gas 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 a pass. If it does not match, the MSB will be set to indicate failure.

DSG FET OFF (HOST_DISCONNECT): 0x0018

Instructs the gas gauge to force the protection DOUT pin to a low level. This prohibits discharging the battery by

turning off the external discharge control N-channel MOSFET.

DSG FET ON (HOST_CONNECT): 0x0019

Instructs the gas gauge to release the DOUT high if no other conditions exist to force the pin low. This allows

discharging the battery by turning on the external discharge control N-channel MOSFET.

SEALED: 0x0020

Instructs the gas gauge to transition from UNSEALED state to SEALED state. The gas gauge should always be

set to SEALED state for use in customers' end equipment.

IT ENABLE: 0x0021

This command forces the gas 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 gas gauge is UNSEALED and is typically enabled at the last step of production after a system test is

completed.

The CFET and DFET are not automatically enabled until the IT Enable bit is sent. Prior to this, to control these

FETs, a command must be sent to set the CHGFET and DSGFET bits in the Flags Bit Definitions Register to

enable the COUT and DOUT, respectively.

CAL_ENABLE: 0x002D

This command toggles the CalEn bit in the PACK Configuration register.

RESET: 0x0041

This command instructs the gas gauge to perform a full reset. This command is only available when the gas

gauge is unsealed.

EXIT_CAL: 0x0080

This command instructs the gas gauge to exit CALIBRATION mode.

ENTER_CAL: 0x0081

This command instructs the gas gauge to enter CALIBRATION mode.

OFFSET_CAL: 0x0082

This command instructs the gas gauge to perform offset calibration.

AtRate(): 0x02/0x03

The AtRate() read-/write-word function is the first half of a two-function command call-set used to set the AtRate

value in calculations made by the AtRateTimeToEmpty() function. The AtRate() units are in mA.

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