Neoway N75 - Page 22

N75
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
12
SPI interface
SPI_CLK_BLSP2
84
DO
Clock signal
P3
Used only in host
mode
Leave these pins
floating if they are
not used.
SPI_MISO_BLSP2
85
DI
Device output, host input
P3
SPI_MOSI_BLSP2
86
DO
Device input, host output
P3
SPI_CS_N_BLSP2
87
DO
Chip select
P3
GPIO
GPIO_76
68
B
GPIO with interrupt
P3
Leave this pin
floating if it is not
used.
GPIO_77
67
B
GPIO without interrupt
P3
Leave this pin
floating if it is not
used.
GPIO_78
66
B
GPIO without interrupt
P3
Leave this pin
floating if it is not
used.
GPIO_79
65
B
GPIO with interrupt
P3
Leave this pin
floating if it is not
used.
Antenna Interface
ANT_MAIN
76
AIO
Main antenna
50Ω impedance
ANT_GNSS
92
AI
GNSS antenna
50Ω impedance
ANT_DIV
94
AI
Diversity antenna
50Ω impedance
Other Interfaces
RING
13
DO
Incoming call/SMS
indicator
P3
Leave this pin
floating if it is not
used.
DTR
79
DI
Sleep mode control
P3
Leave this pin
floating if it is not
used.
OTG_5V_EN
80
DO
External 5V power
enable
P3
Do not pull this pin
high before the
module is powered
up.
NET_LIGHT
83
DO
Network status indicator
P3
Leave this pin
floating if it is not
used.