N58 Hardware User Guide
Chapter 4 Module Pins
Copyright © Neoway Technology Co., Ltd. All rights reserved.
22
section 5.3.3 "USIM""
for
the
handling
method of this pin.
USB interface
USB_VBUS
40
PI
Voltage
detection
4.5 V to 5.2 V,
typical value: 5 V
Route DM and DP
signals in differential
mode,
and
control
impedance of 90 Ω.
Leave
these
pins
floating if they are not
used.
USB_DM
41
AIO
USB
data
minus
-
USB_DP
42
AIO
USB
data
positive
-
USB_ID
43
DI
Master-
slave device
detection
-
Leave this pin floating
if it is not used.
ADC interface
ADC1
88
AI
Universal
analog-to-
digital signal
-
12-bit.
Detectable
voltage range: 0.1 V to
VBAT. Leave this pin
floating if it is not used.
I2C interface
I2C_SDA
81
B
I2C data
P3
Connect this pin to
VDD_1P8 by using a
1.8 kΩ pull-up resistor.
I2C_SCL
82
DO
I2C clock
P3
Connect this pin to
VDD_1P8 by using a
1.8 kΩ pull-up resistor.
LCD interface
LCD_RST_N
63
DO
Reset
control
1.8 V/3.0 V
Leave this pin floating
if it is not used.
LCD_TE
64
DO
Data frame
read
ready
flag
1.8 V/3.0 V
Leave this pin floating
if it is not used.
LCD_SPI_CS
65
DO
SPI
chip
select signal
1.8 V/3.0 V
Leave this pin floating
if it is not used.
LCD_SPI_CLK
66
DO
SPI
clock
signal
1.8 V/3.0 V
Leave this pin floating
if it is not used.
LCD_SPI_SDC
67
B
Data
or
command
control
signal
1.8 V/3.0 V
Leave this pin floating
if it is not used.
