Data Sheet

2 MODULE INTERFACES
6
/ 25
Pin number
Symbol
I/O type
Function
12
CSN
I/O
It is not
recommended for
customers. If you
need to use it,
make sure that
the level of the
CSN pin remains
high before
powering on. The
pin corresponds
to P21 of the IC.
13
P8
I/O
Support hardware
PWM and
correspond to P8
on the internal IC
14
P7
I/O
Support hardware
PWM and
correspond to P7
on the internal IC
15
RXD1
I/O
User serial
interface
UART_RX, which
corresponds to
P10 of the IC
16
TXD1
I/O
User serial
interface
UART_TX, which
corresponds to
P11 of the IC
Note: P indicates a power supply pin and I/O indicates an input/output pin.