Smart Machine Smart Decision
SIM5360_Hardware Design_V1.01
2013-11-22
36
Table 15: Pin description
Pin name
Pin No.
Function
KEYSENSE_N0
28
Sensing keys
KEYSENSE_N1
27
KEYSENSE_N2
31
KEYSENSE_N3
32
KEYSENSE_N4
36
KEYPAD_0
30
Driving pads
KEYPAD_1
29
KEYPAD_2
30
KEYPAD_3
35
KEYPAD_4
34
3.7.2
Application Guide
All keypad pins can be configured for GPIOs. These GPIOs also support interruption operation if used as
input pins. A typical circuit about the keypad (5*5 keypad matrix) is shown in the following figure.
Figure 24: Reference circuit
If these pins are configured for GPIOs, the sequence is listed in the following table.