Smart Machine Smart Decision
SIM7600NA_user manual _V1.00 18
2020-1-7
USB_DP
13
AI, AO
Positive line of the differential,
bi-directional USB signal.
USB_ID
16
AI
High-speed USB ID input
Keep it open.
SGMII interface
SGMII_RX_P
112
AI
SGMII receive – positive
If unused, keep
them open.
SGMII_RX_M
113
AI
SGMII receive - negative
SGMII_TX_M
114
AO
SGMII transmit - negative
SGMII_TX_P
115
AO
SGMII transmit– positive
SGMII_RST_N
108
DO
Ethernet PHY reset
External 1.5K
pull-up resistor
from 3.3V/2.5V to
MDIO_DATA and
10K pull-up resistor
from VDD_1V8 to
ETH_INT_N are
needed when the
Ethernet PHY is
connected.
If unused, please
keep them open.
SGMII_INT_N
109
DI,PU
Ethernet PHY interrupt
SGMII_MDIO
116
DIO
Management data
input/output-data
SGMII_MDC
117
DO
Management data
input/output-clock
UART interface
RTS
66
DOH
Request to send
If unused, keep
them open.
CTS
67
DI
Clear to Send
RXD
68
DI
Receive Data
RI
69
DOH
Ring Indicator
DCD
70
DOH
Carrier detects
TXD
71
DOH
Transmit Data
DTR
72
DI,PU
DTE get ready
DBG_UART
DBG_TXD
42
DO
Log output
If unused, keep
them open.
DBG_RXD
106
DI
Log input
I2C interface
SCL
55
OD
I2C clock output
If unused, keep
open, or else pull
them up via 2.2KΩ
resistors to 1.8V.
SDA
56
OD
I2C data input/output
SDIO interface
SDIO_DATA1
27
I/O
SDIO data1
It can be used for
WLAN function.
If unused, please
SDIO_DATA2
28
I/O
SDIO data2
SDIO_CMD
29
I/O
SDIO command