Datasheet

Not Recommended for New Designs
bq27505
www.ti.com SLUS884–FEBRUARY 2009
4.1.1.1 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 bq27505 during normal operation and additional features when the bq27505 is in different
access modes, as described in Table 4-2.
Table 4-2. Control( ) Subcommands
CNTL SEALED
CNTL FUNCTION DESCRIPTION
DATA ACCESS
CONTROL_STATUS 0x0000 Yes Reports the status of DF checksum, hibernate, IT, etc.
DEVICE_TYPE 0x0001 Yes Reports the device type (eg: bq27505)
FW_VERSION 0x0002 Yes Reports the firmware version on the device type
HW_VERSION 0x0003 Yes Reports the hardware version of the device type
DF_CHECKSUM 0x0004 No Enables a data flash checksum to be generated and reports on a read
Write_Temperature 0x0006 Yes Write temperature to the gauge when the [WRTEMP] is 1
PREV_MACWRITE 0x0007 Yes 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
CC_INT_OFFSET 0x000a No Forces the device to measure the internal CC offset
WRITE_CC_OFFSET 0x000b No Forces the device to store the internal CC offset
OCV_CMD 0x000c Yes Request the gauge to take a OCV measurement
BAT_INSERT 0x000d Yes Forces the BAT_DET bit set when the [BIE] bit is 0
BAT_REMOV 0x000e Yes Forces the BAT_DET bit clear when the [BIE] bit is 0
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 bq27505 in SEALED access mode
IT_ENABLE 0x0021 No Enables the Impedance Track™ algorithm
IT_DISABLE 0x0023 No Disables the Impedance Track™ algorithm
CAL_MODE 0x0040 No Places the bq27505 in calibration mode
RESET 0x0041 No Forces a full reset of the bq27505
Copyright © 2009, Texas Instruments Incorporated GENERAL DESCRIPTION 11
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