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GPIO_95
115
GPIO_11
116
GPIO_10
117
GPIO_9
118
GPIO_8
119
GPIO_16
123
GPIO_17
124
Other Interfaces
Pin Name
Pin No.
VIB_DRV
28
RESET_N
179
USB_BOOT
46
CHARGE_
127
SEL
Reserved Interface
Pin Name
Pin No.
17, 18, 19,
20, 21, 22,
RESERVED
23, 24, 25,
26, 87,
121, 131,
SC20-WL_Hardware_Design
IO
GPIO
IO
GPIO
IO
GPIO
IO
GPIO
IO
GPIO
IO
GPIO
IO
GPIO
I/O
Description
PO
Motor drive
DI
Reset the module
Force the module to
DI
boot from USB port
Used for charger
DI
selection
I/O
Description
Reserved pins
Smart Wi-Fi Module Series
SC20-WL Hardware Design
1.8V power domain
Multiplexed into
SPI_CLK.
Multiplexed into
SPI_CS_N.
Multiplexed into
SPI_MISO.
Multiplexed into
SPI_MOSI
1.8V power domain
1.8V power domain
DC
Comment
Characteristics
Connected to the
negative terminal of
the motor.
Disabled by default
and can be enabled
through software
configuration.
Set USB_BOOT to
high level will force
the module to enter
into emergency
download mode.
If it is open, internal
charger is used.
If it is connected to
GND, external
charger is used.
DC
Comment
Characteristics
Keep these pins
open.
28 / 81
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