Cavli Wireless C16QS - UART2 Serial Port

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C16QS Hardware Manual
The UART interface is defined as follows：
Table 3-9 UART serial port signal definition
3.6.3 UART2 Serial Port
The pins 22 and 23 of the module are UART2 serial port pins. This UART is used to obtain the GNSS NMEA data.
The pins are defined as follows:
Table 3-10 UART2 serial port pin definition
No.
Name
I/O
Description
39
UART1_RI
DOH
Ringing indication
38
UART1_DCD
DOH
Output carrier detection
36
UART1_CTS
DO
UART clear to send
37
UART1_RTS
DI
UART request to send
30
UART1_DTR
DI
Data terminal preparation
35
UART1_TXD
DO
Data transmission
34
UART1_RXD
DI
Data reception
Pin No.
Signal name
I/O
Description
Parameter
Level value (V)
Remark
min
typical
max
22
UART2_RX
DI
Data
transmission
VIH
1.3
1.8
1.9
VIL
0
0.45
23
UART2_TX
DO
Data
reception
VOH
1.3
1.8
1.9
VOL
-0.3
0.6