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3.4.4 Monitoring ADC
The monitoring ADC (MADC) consists of a 10-bit analog-to-digital converter (ADC) combined with an
11- input analog multiplexer. The ADC implementation consists of a successive approximation
conversion. Five of the eleven inputs are available externally (ADIN1..5), and the remaining six inputs
are dedicated to die temperature measurement, main battery voltage, backup battery voltage,
charger voltage, charger current monitoring and USB Vbus voltage. Three external inputs (ADIN1..3)
are standard inputs. The two others (ADIN4..5) which are associated with current sources, are
intended for battery temperature and battery type measurements.
3.4.5 Switch ON/OFF
CE110 Power State : Defined 4cases as follow
- Power-ON : mobile is powered by main battery or backup battery.
- Power-OFF : mobile isn’t any battery.
- Switch-ON : mobile is powered and waken up from switch-off state.
- Switch-OFF : mobile is powered to maintain only the permanent function(ULPD).
To enter into Switch-ON state, one of following 4 condition is satisfied.
- PWR-ON pushed after a debouncing time of 30ms.
- ON_REMOTE : After debouncing, when a falling edgeis detected on RPWON pin.
- IT_WAKE_UP : When a rising edge is detected on RTC_ALARM pin.
- CHARGER_IC :When a charger voltage is above VBAT+0.4V on VCHG.
<Table.5> ADC Channel Spec
ADC 8 channels
Resource
Name
Description
VCHG
VCHG
Charging Management
VBAT
VBAT
ICTL
ICTL
ADIN1
TEMP_SENSE
Temperature Sensing
ADIN2
JACK_TYPE
Remote control’s Detect- Now No Use
ADIN3
N.C
Not connect
ADIN4
BAT_Insert
Battery ID Sensor
ADIN5
USB Boot
For USB BOOT
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