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SD_DATA0
41
SD_DATA1
42
SD_DATA2
43
SD_DATA3
44
SD_DET
45
Touch Panel (TP) Interface
Pin Name
Pin No.
TP_INT
30
TP_RST
31
TP_I2C_
47
SCL
TP_I2C_
48
SDA
LCM Interface
Pin Name
Pin No.
PWM
29
LCD_RST
49
LCD_TE
50
MIPI_DSI_
52
CLKN
MIPI_DSI_
53
CLKP
SC20-WL_Hardware_Design
IO
IO
High speed
IO
bidirectional digital
signal lines of SD
card
IO
SD card insertion
DI
detection
I/O
Description
DI
Interrupt signal of TP
DO
Reset signal of TP
I2C clock signal of
OD
TP
OD
I2C data signal of TP
I/O
Description
Adjust the backlight
DO
brightness.
PWM control signal.
DO
LCD reset signal
LCD tearing effect
DI
signal
MIPI DSI clock signal
AO
(negative)
MIPI DSI clock signal
AO
(positive)
Smart Wi-Fi Module Series
SC20-WL Hardware Design
V
max=0.37V
OL
V
min=2.2V
OH
1.8V SD card:
V
max=0.58V
IL
V
min=1.27V
IH
V
max=0.45V
OL
V
min=1.4V
OH
2.95V SD card:
V
max=0.73V
IL
V
min=1.84V
IH
V
max=0.37V
OL
V
min=2.2V
OH
V
max=0.63V
IL
Active low
V
min=1.17V
IH
DC
Comment
Characteristics
V
max=0.63V
1.8V power
IL
V
min=1.17V
domain.
IH
V
max=0.45V
1.8V power
OL
V
min=1.35V
domain. Active low.
OH
1.8V power
domain.
1.8V power
domain.
DC
Comment
Characteristics
V
max=0.45V
OL
V
max=VBAT_BB
OH
1.8V power
V
max=0.45V
OL
domain.
V
min=1.35V
OH
Active low.
V
max=0.63V
1.8V power
IL
V
min=1.17V
domain.
IH
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