Data Sheet

2 Module interfaces
Pin No. Symbol I/O type Function
14 P31 I/O Common I/O
interface, which
can be used as
PWM output of the
LED drive and
corresponds to
P31 of the IC
15 RXD I/O Receiving pin,
which can be
reused as a
common I/O
interface and
corresponds to P10
of the internal IC
16 TXD I/O Transmitting pin,
which can be
reused as a
common I/O
interface and
corresponds to P9
of the internal IC
Test point TM I Mode selection
pin, which is pulled
high in burning
mode, but pulled
down or not
connected to
anything in other
modes.
Note:
• P indicates a power supply pin and I/O indicates an input/output pin.
• If you have any special requirements on the light color controlled by the
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