LG PRADA KE850 - Keypad Switching & Scanning

3. TECHNICAL BRIEF
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3.8. Keypad Switching & Scanning
The keypad interface is a peripheral which can be used for scanning keypads up to 8 rows (outputs
from Port Control Logic) and 8 columns (inputs to PCL). The number of rows and columns depend on
settings of the PCL.
Figure 12 Key FPCB part key matrix
VBAT
END
PWRON
SEND CLEARSide Vol Up Side Vol Down
OK
VA103
KP_OUT1
KP_IN4 KP_IN1 KP_IN2 KP_IN3 KP_IN0