3. Technical brief
GD510 Operational Description Revision A
LG Electronics 36/113 LGE Property
3.8. Keypad Switching & Scanning
The keypad interface is a peripheral which can be used for scanning keypads up to 3 rows (outputs from
Port Control Logic) and 2columns (inputs to PCL). The number of rows and columns depend on settings
of the PCL.
Figure 10 Key pad part key matrix