BQ2063_15 Datasheet, PDF (26/60 Pages) Texas Instruments – SBS v1.1-COMPLIANT Li-ION GAS-GAUGE IC

bq2063
Not Recommended For New Designs
SBS v1.1ĆCOMPLIANT LiĆION GASĆGAUGE IC
WITH PROTECTOR INTERFACE
SLUS468E− MAY 2001 − REVISED APRIL 2002
command codes (continued)
The defined request condition is the battery requesting a conditioning cycle (RELEARN_FLAG).
Purpose: The CAPACITY_MODE bit allows power management systems to best match their electrical
characteristics with those reported by the battery. For example, a switching power supply represents a constant
power load, whereas a linear supply is better represented by a constant current model. The CHARGER_MODE
bit allows a SMBus Host or Smart Battery Charger to override the Smart Battery’s desired charging parameters
by disabling the bq2063’s broadcasts. The RELEARN_FLAG bit allows the bq2063 to request a conditioning
cycle.
SMBus Protocol: Read or Write Word
Input/Output: Unsigned integer—bit mapped— see below.
Units: not applicable
Range: 0-1
Granularity: not applicable
Accuracy: not applicable
The BatteryMode( ) word is divided into two halves, the MSB (bits 8-15) which is read/write and the LSB (bits
0-7) which is read only. The bq2063 forces bits 0-6 to zero and prohibits writes to bit 7.
Table 9 summarizes the meanings of the individual bits in the BatteryMode( ) word and specifies the default
values, where applicable, are noted.
INTERNAL_CHARGE_CONTROLLER bit is not used by the bq2063.
PRIMARY_BATTERY_SUPPORT bit is not used by the bq2063.
RELEARN_FLAG bit set indicates that the bq2063 is requesting a capacity relearn cycle for the battery. The
bq2063 sets the RELEARN_FLAG on a full reset and if it detects 20 cycle counts without an FCC update. The
bq2063 clears this flag after a learning cycle has been completed.
CHARGE_CONTROLLER_ENABLED bit is not used by the bq2063. The bq2063 forces this bit to zero.
PRIMARY_BATTERY bit is not used by the bq2063. The bq2063 forces this bit to zero.
Table 9. Battery Mode Bits and Values
Battery Mode( ) BITS
INTERNAL_CHARGE_CONTROLLER
PRIMARY_BATTERY_SUPPORT
Reserved
RELEARN_FLAG
CHARGE_CONTROLLER_ENABLED
PRIMARY_BATTERY
Reserved
ALARM_MODE
CHARGER_MODE
CAPACITY_MODE
BITS USED
0
1
2–6
7
8
9
10–12
13
14
15
FORMAT
Read only bit flag
Read only bit flag
ALLOWABLE VALUES
Read only bit flag
R/W bit flag
R/W bit flag
0—Battery OK
1—Relearn cycle requested
R/W bit flag
R/W bit flag
R/W bit flag
0—Enable alarm broadcast (default)
1—Disable alarm broadcast
0—Enable charging broadcast (default)
1—Disable charging broadcast
0—Report in mA or mAh (default)
1—Report in 10mW or 10 mWh
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