BQ29312_15 Datasheet, PDF (19/39 Pages) Texas Instruments – FOUR CELL LITHIUM-ION

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FUNCTION CTL: Function Control Register
FUNCTION CTL REGISTER (0x03)
7
6
5
4
3
0
0
TOUT
XSCD
SSCC
bq29312
SLUS546E – MARCH 2003 – REVISED MARCH 2005
2
XOL
1
PACKOUT
0
VMEN
The FUNCTION CTL register enables and disables functons of the bq29312.
FUNCTION CTL b0 (VMEN): This bit enables or disables the cell and battery voltage monitoring function.
0 = disable voltage monitoring (default). CELL output is pulled down to GND level.
1 = enable voltage monitoring.
FUNCTION CTL b1 (PACKOUT): This bit is used to translate the PACK input to the CELL pin when VMEN=1
The pack voltage is divided by 25 and is presented on CELL regardless of the CELL_SEL register settings.
0 = disable PACK OUT (default).
1 = enable PACK OUT.
FUNCTION CTL b2 (XOL): This bit enables or disables the over current sense function.
0 = enable over load sense (default).
1 = disable over load sense.
FUNCTION CTL b3 (XSCC): This bit enables or disables the short current sense function of charging.
0 = enable short-circuit current sense in charge direction (default).
1 = disable short-circuit current sense in charge direction.
FUNCTION CTL b4 (XSCD): This bit enables or disables the short current sense function of discharge.
0 = enable short-circuit current sense in discharge direction (default).
1 = disable short-circuit current sense in discharge direction.
FUNCTION CTL b5 (TOUT): This bit controls the power to the thermistor.
0 = thermistor power is off (default).
1 = thermistor power is on.
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