LG G3100 Service Manual page 37

SIM interface
The AD6522 check status periodically in call mode if SIM card is inserted or not, but the AD6522
don't check in deep sleep mode.
Interface by SIMDATAOP, SIMCLK, SIM_RST(GPIO_23)
SIMDATAOP
SIMCLK
SIM_RST(GPIO_23)
Key interface
Include 5 column and 5 row. The AD6522 detect key press by interrupt.
ADP3408 interrupt
There are two interrupts EOC and CHARGEDET
EOC: End of Charge. AD6522 makes charging operation stop when high signal is inputted.
CHARGEDET: This pin is activated when the charger is inserted.
Table 3-5.
This pin receives and sends data to SIM card. This model supports only
3.0 volt interface SIM card.
Clock 3.25MHz frequency.
Reset SIM block.
Figure 3-24. SIM Interface of AD6522.
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3. TECHNICAL BRIEF
Description