STC3117 Datasheet, PDF (26/34 Pages) STMicroelectronics – Gas gauge IC with battery charger control for handheld applications

I²C interface
STC3117
Name
IO0DATA
GG_RST
GG_VM
BATFAIL
PORDET
ALM_SOC
ALM_VOLT
UVLOD
Table 13. REG_CTRL - address 1
Position Type Def.
Description
ALM pin status
R
X 0 = ALM input is low
1 = ALM input is high
0
ALM pin output drive
W
1 0 = ALM is forced low
1 = ALM is driven by the alarm conditions
0: no effect
1
W
0 1: resets the conversion counter
GG_RST is a self-clearing bit.
Voltage mode active
2
R
0 0 = REG_SOC from Coulomb counter mode
1 = REG_SOC from Voltage mode
Battery removal (BATD high).
3
R/W
0 Write 0 to clear (effective only if BATD low)
(Write 1 is ignored)
Power on reset (POR) detection bit
R
1 0 = no POR event occurred
1 = POR event occurred
Soft reset
4
0 = release the soft-reset and clear the POR
W
0
detection bit,
1 = assert the soft-reset and set the POR detection
bit.
This bit is self clearing.
5
R/W
0
Set with a low-SOC condition.
Cleared by writing 0.
6
R/W
0
Set with a low-voltage condition.
Cleared by writing 0.
7
R/W
0
UVLO event detection.
Cleared by writing 0.
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