BQ27620-G1 Datasheet, PDF (29/45 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge

bq27620-G1
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SLUSAE3 – OCTOBER 2012
5.3 DETAILED PIN DESCRIPTION
5.3.1 The Operation Configuration Register
Some bq27620-G1 pins are configured via the Operation Configuration data flash register, as indicated
in Table 5-3. This register is programmed/read via the methods described in Section 4.2.1, Accessing the
Data Flash. The register is located at subclass = 64, offset = 0.
Table 5-3. Operation Configuration Bit Definition
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
High Byte RESCAP BATG_OVR INT_BREM
PFC1
PFC2
–
–
-
Default =
0
0
0
0
1
0
0
0
0x08
Low Byte INT_FOCV IDSELEN LDODEOC
RMFCC
SOCPOL BATGPOL BATLPOL
TEMPS
Default =
0
1
1
1
0
0
1
1
0x73
RESCAP = No-load rate of compensation is applied to the reserve capacity calculation. True when set.
BATG_OVR = BAT_GD override bit. If the gauge enters Hibernate only due to the cell voltage, the BAT_GD pin will not negate. True when
set.
INT_BERM = Battery removal interrupt bit. The SOC_INT pulses 1ms when the battery removal interrupt is enabled. True when set.
PFC1/PFC2 = Pin function code (PFC) mode selection: PFC 0, 1, or 2 selected by 0/0, 0/1, or 1/0, respectively.
INT_FOCV = Indication of the measurement of the OCV during the initialization. The SOC_INT will pulse during the first measurement if this
bit is set. True when set.
IDSELEN = Enables cell profile selection feature. True when set.
LDODEOC = Learned Dod at EOC is the recording of DoD at EOC when set. If cleared the bq27620 records the the V_charger voltage and
uses it to dynamically compute DoD at EOC based on the current temperature. True when set.
RMFCC = RM is updated with the value from FCC, on valid charge termination. True when set.
SOCPOL = SOC interrupt polarity is active-low. True when cleared.
BATGPOL = BAT_GD pin is active-low. True when cleared.
BATLPOL = BAT_LOW pin is active-high. True when set.
TEMPS = Selects external thermistor for Temperature( ) measurements. True when set.
Copyright © 2012, Texas Instruments Incorporated
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FUNCTIONAL DESCRIPTION
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