BQ27741-G1_14 Datasheet, PDF (22/39 Pages) Texas Instruments – Single Cell Li-Ion Battery Fuel Gauge with Integrated Protection

bq27741-G1
SLUSBF2 – JULY 2013
www.ti.com
Extended Data Commands
Extended commands offer additional functionality beyond the standard set of commands. They are used in the
same manner; however unlike standard commands, extended commands are not limited to 2-byte words. The
number of command bytes for a given extended command ranges in size from single to multiple bytes, as
specified in Table 6. For details on the SEALED and UNSEALED states, see the Access Modes section in the
TRM, SLUUAA3.
Table 6. Extended Commands
NAME
PackConfig( )
DesignCapacity( )
DataFlashClass( ) ⁽²⁾
DataFlashBlock( ) ⁽²⁾
BlockData( ) / Authenticate( )⁽³⁾
BlockData( ) / AuthenticateCheckSum( ) ⁽³⁾
BlockData( )
BlockDataCheckSum( )
BlockDataControl( )
DeviceNameLength( )
DeviceName( )
Protector Status
Reserved
Simultaneous Current
Reserved
FETTest( )
Reserved
Protector State
Reserved ⁽⁴⁾
DODatEOC( )⁽⁴⁾
QStart( )⁽⁴⁾
FastQmax( )⁽⁴⁾
AN_COUNTER ⁽⁵⁾
AN_CURRENT_LSB ⁽⁵⁾
AN_CURRENT_MSB ⁽⁵⁾
AN_VCELL_LSB ⁽⁵⁾
AN_VCELL_MSB ⁽⁵⁾
AN_TEMP_LSB ⁽⁵⁾
AN_TEMP_MSB ⁽⁵⁾
COMMAND CODE
PCR
DCAP
DFCLS
DFBLK
A/DF
ACKS/DFD
DFD
DFDCKS
DFDCNTL
DNAMELEN
DNAME
AFESTAT1
RSVD
RSVD
RSVD
AFESTATE
RSVD
0x3A and 0x3B
0x3C and 0x3D
0x3E
0x3F
0x40 to 0x53
0x54
0x55 to 0x5F
0x60
0x61
0x62
0x63 to 0x6C
0x6D
0x6E and 0x6F
0x70 and 0x71
0x72 and 0x73
0x74 and 0x75
0x76 and 0x77
0x78
0x79
0x7A and 0x7B
0x7C and 0x7D
0x7E and 0x7F
0x79
0x7A
0x7B
0x7C
0x7D
0x7E
0x7F
UNIT
hex#
mAh
NA
NA
NA
NA
NA
NA
NA
NA
NA
hex
NA
NA
NA
NA
NA
hex
NA
NA
mA
mAh
SEALED
ACCESS^{(1) (2)}
R
R
NA
RW
RW
RW
R
RW
NA
R
R
R
R
R
R
NA
R
R
R
R
R
R
UNSEALED
ACCESS^{(1) (2)}
R
R
RW
RW
RW
RW
RW
RW
RW
R
R
R
R
R
R
RW
R
R
R
R
R
R
(1) SEALED and UNSEALED states are entered via commands to Control( ) 0x00 and 0x01
(2) In SEALED mode, data flash cannot be accessed through commands 0x3E and 0x3F.
(3) The BlockData( ) command area shares functionality for accessing general data flash and for using Authentication. See Authentication
in the bq27741-G1 TRM (SLUUAA3) for more details.
(4) If CONTROL_STATUS [CALMODE] bit = 0, then this address or command is valid.
(5) If CONTROL_STATUS [CALMODE] bit = 1, then this address or command is valid.
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