
3
MODULE INTERFACES
3.2 Interface Pin Definition
Pin No.
Symbol
I/O Type
Function
1
GPIO14
I/O
Use as GPIO,
which is
connected to
MTMS (pin 9) on
the internal
2
VCC
P
Power input pin
3.3 V
3
GPIO12
I/O
Use as GPIO,
which is
connected to
MTDI (pin10) on
the internal
4
GND
P
Power supply
reference ground
pin
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