DS2790 Maxim Integrated Products, DS2790 Datasheet - Page 22

• Manufacturer Part Number: DS2790
• Description: Programmable 1-Cell Li-Ion Fuel Gauge and Protector
• Manufacturer: Maxim Integrated Products

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Ports and Pins
GENERATOR INTERRUPT
A/D Converter
Figure 6. EINT Register Interrupt Sources
Brown-Out
Protection
4
Detector
Counter
Timer/
Logic
SNDI
INT0
INT1
SCI
SDI
CCI
BOI
BEI
TCI
CI
VI
TI
PAF.0/PIE.0
PAF.1/PIE.1
MSNDI
MASK
MCCI
MBOI
MSCI
MSDI
MBEI
MTCI
MVI
MCI
MTI
The interrupt from pin P0.0 is configurable
via the PAF.0, PIT.0 and PIP.0 bits.
The interrupt from pin P0.1 is configurable
via the PAF.1, PIT.1 and PIP.1 bits.
The serial connect interrupt is generated
when all serial lines become high.
The serial disconnect interrupt is generated
when all serial lines are low for at least
220ms.
The serial not disconnected interrupt is
generated when only one serial line goes
high.
The charger connection interrupt is
generated when V
creates a charger detection condition.
The brown-out interrupt indicates that V
was below V
the microcontroller's stop mode. It will
interrupt the microcontroller, if MBOI is 1,
after a charger brings V
causes the microcontroller to run.
The battery event interrupt is an interrupt for
a collection of events that initiate the various
battery conditions that are handled by the
protection logic: overvoltage, undervoltage,
charge overcurrent, discharge overcurrent
and short-circuit. The battery conditions are
available as flags in the MAS register of
module 0.
The voltage interrupt indicates the voltage
register in the data peripheral memory block
has a fresh voltage average.
The current interrupt indicates that the quick
average current register in the data peripheral
memory block has a fresh reading and that
the ACR has also been updated.
The temperature interrupt indicates that the
temperature register in the data peripheral
memory block has a fresh average.
The timer/counter interrupt indicates that
the timer/counter has been reloaded after
reaching its end-count.
DS2790 Programmable 1-Cell Li-Ion Fuel Gauge and Protector
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BO
DESCRIPTION
in the past. It will not terminate
PLS
increases above V
DD
above V
BO
and
IN
DD
and
Dependent on external
conditions.
Dependent on external
conditions.
Every time all lines are
high after any of them
were low.
Once every 220ms if all
serial lines are held low.
The first interrupt may
take up to 440ms from the
time all lines go low.
Interrupt will not trigger if
the ADC is off.
Every time any line goes
high after all of them were
low.
Each time the charger
detection condition
evaluates to true after it
was false.
Every time after exiting
brown-out.
Each entry into a
protection violation.
Once every 6.9ms. Never
if the ADC is off.
Once every 88ms. Never if
the ADC is off.
Once every 220ms. Never
if the ADC is off.
Dependent on TMOD and
TTCK[1:0].
FREQUENCY